nixops: add back abdul

Redirect www.* URLs to non-www.* with default 301 code in order to reduce number of copies of the websites in search engines

Signed-off-by: Egor Savkin <es@m-labs.hk>

backupdl-module.nix

@@ -0,0 +1,56 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  makeBackup = pkgs.writeScript "make-backupdl" ''
+    #!${pkgs.bash}/bin/bash
+
+    set -e
+
+    export PATH=${pkgs.rsync}/bin:${pkgs.openssh}/bin
+
+    FILENAME=backup-`${pkgs.coreutils}/bin/date +%F`.tar.bz2.gpg
+
+    ssh nixbld.m-labs.hk mlabs-backup > /hdd/backupdl/backupdl/$FILENAME
+    rsync -az nixbld.m-labs.hk:/var/lib/nextcloud/data /hdd/backupdl/nextcloud
+  '';
+
+  cfg = config.services.backupdl;
+in
+{
+  options.services.backupdl = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable backups";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.backupdl = {
+      description = "Nixbld backups download";
+      serviceConfig = {
+        Type = "oneshot";
+        User = "backupdl";
+        Group = "backupdl";
+        ExecStart = "${makeBackup}";
+      };
+    };
+
+    users.users.backupdl = {
+      name = "backupdl";
+      group = "backupdl";
+      description = "Nixbld backups download";
+      isSystemUser = true;
+      createHome = true;
+      home = "/hdd/backupdl";
+      useDefaultShell = true;
+    };
+    users.extraGroups.backupdl = {};
+
+    systemd.timers.backupdl = {
+      description = "Nixbld backups download";
+      wantedBy = [ "timers.target" ];
+      timerConfig.OnCalendar = "wednesday,sunday *-*-* 08:00:00";
+    };
+  };
+}

m-labs-intl/60-tunnels.yaml

@@ -0,0 +1,18 @@
+network:
+   version: 2
+   renderer: networkd
+   ethernets:
+     eth0:
+       addresses:
+       - 5.78.86.156/32
+       - 2a01:4ff:1f0:83de::2/64
+       - 2a01:4ff:1f0:83de::3/64
+       - 2a01:4ff:1f0:83de::4/64
+   tunnels:
+     gre1:
+       mode: gre
+       local: 5.78.86.156
+       remote: 94.190.212.123
+       addresses:
+        - 10.47.3.0/31
+

m-labs-intl/gretun.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=GRE tunnel to the main host
+After=network.target
+
+[Service]
+Type=simple
+User=root
+ExecStart=/root/gretun.sh
+ExecStop=/root/gretun_down.sh
+Restart=on-failure
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target

m-labs-intl/gretun.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+/usr/sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 25 -j DNAT --to-destination 10.47.3.1:25
+/usr/sbin/iptables -A FORWARD -p tcp -d 10.47.3.1/31 --dport 25 -j ACCEPT
+
+/usr/sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 587 -j DNAT --to-destination 10.47.3.1:587
+/usr/sbin/iptables -A FORWARD -p tcp -d 10.47.3.1/31 --dport 587 -j ACCEPT
+
+/usr/sbin/iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
+/usr/sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

m-labs-intl/gretun_down.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+/usr/sbin/iptables -t nat -D PREROUTING -p tcp -i eth0 --dport 25 -j DNAT --to-destination 10.47.3.1:25
+/usr/sbin/iptables -D FORWARD -p tcp -d 10.47.3.1/31 --dport 25 -j ACCEPT
+
+/usr/sbin/iptables -t nat -D PREROUTING -p tcp -i eth0 --dport 587 -j DNAT --to-destination 10.47.3.1:587
+/usr/sbin/iptables -D FORWARD -p tcp -d 10.47.3.1/31 --dport 587 -j ACCEPT
+
+/usr/sbin/iptables -D FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
+/usr/sbin/iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE

m-labs-intl/m-labs-intl.com

@@ -0,0 +1,81 @@
+upstream rfq_server {
+    server 127.0.0.1:5000;
+}
+
+server {
+    limit_conn addr 5;
+
+    root /var/www/m-labs-intl.com/html;
+    index index.html index.htm index.nginx-debian.html;
+
+    server_name m-labs-intl.com;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    listen [::]:443 ssl ipv6only=on; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    server_name www.m-labs-intl.com;
+    return 301 https://m-labs-intl.com$request_uri;
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    server_name hooks.m-labs-intl.com;
+    limit_conn addr 5;
+
+    location /rfq {
+        proxy_pass http://rfq_server/rfq;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 30;
+        proxy_connect_timeout 30;
+        proxy_send_timeout 30;
+    }
+
+    location / {
+        return 418;
+    }
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    limit_conn addr 5;
+    if ($host = m-labs-intl.com) {
+        return 301 https://$host$request_uri;
+    } # managed by Certbot
+
+
+    if ($host = www.m-labs-intl.com) {
+        return 301 https://m-labs-intl.com$request_uri;
+    } # managed by Certbot
+
+
+    listen 80;
+    listen [::]:80;
+
+    server_name m-labs-intl.com www.m-labs-intl.com hooks.m-labs-intl.com;
+    return 301 https://$host$request_uri;
+}

m-labs-intl/m-labs.hk.conf

@@ -0,0 +1,34 @@
+
+
+connections {
+  m_labs {
+    version = 2
+    encap = no
+    mobike = no
+    send_certreq = no
+    proposals = aes128gcm128-sha256-prfsha256-curve25519,aes128gcm128-sha256-prfsha256-ecp256
+    local_addrs = 5.78.86.156
+    remote_addrs = 94.190.212.123
+    local {
+      auth = pubkey
+      id = fqdn:m-labs-intl.com
+      pubkeys = m-labs-intl.com
+    }
+    remote {
+      auth = pubkey
+      id = fqdn:m-labs.hk
+      pubkeys = m-labs.hk
+    }
+    children {
+      con1 {
+        mode = transport
+        ah_proposals = sha256-curve25519,sha256-ecp256
+        esp_proposals =
+        local_ts = 5.78.86.156[gre]
+        remote_ts = 94.190.212.123[gre]
+        start_action = start
+        close_action = none
+      }
+    }
+  } 
+}

m-labs-intl/nginx.conf

@@ -0,0 +1,65 @@
+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+error_log /var/log/nginx/error.log;
+include /etc/nginx/modules-enabled/*.conf;
+
+events {
+	worker_connections 768;
+	# multi_accept on;
+}
+
+http {
+
+	##
+	# Basic Settings
+	##
+
+	sendfile on;
+	tcp_nopush on;
+	types_hash_max_size 2048;
+	# server_tokens off;
+
+	server_names_hash_bucket_size 64;
+	# server_name_in_redirect off;
+
+	include /etc/nginx/mime.types;
+	default_type application/octet-stream;
+
+	##
+	# SSL Settings
+	##
+
+	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
+	ssl_prefer_server_ciphers on;
+
+	# Rate limiting
+	limit_conn_zone $binary_remote_addr zone=addr:10m;
+
+	##
+	# Logging Settings
+	##
+
+	access_log /var/log/nginx/access.log;
+
+	##
+	# Gzip Settings
+	##
+
+	gzip on;
+
+	# gzip_vary on;
+	# gzip_proxied any;
+	# gzip_comp_level 6;
+	# gzip_buffers 16 8k;
+	# gzip_http_version 1.1;
+	gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+
+	##
+	# Virtual Host Configs
+	##
+
+	include /etc/nginx/conf.d/*.conf;
+	include /etc/nginx/sites-enabled/*;
+}
+

m-labs-intl/rfq.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=RFQ service
+After=network.target
+
+[Service]
+Type=simple
+User=rfqserver
+ExecStart=/home/rfqserver/runrfq.sh
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

m-labs-intl/runrfq.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+export FLASK_DEBUG=0
+export FLASK_MAIL_SERVER=mail.m-labs.hk
+export FLASK_MAIL_PORT=465
+export FLASK_MAIL_USE_SSL=True
+export FLASK_MAIL_USERNAME=sysop-intl@m-labs-intl.com
+export FLASK_MAIL_PASSWORD_FILE=/home/rfqserver/mail.secret
+export FLASK_MAIL_RECIPIENT=sales@m-labs.hk
+export FLASK_MAIL_SENDER=sysop-intl@m-labs-intl.com
+
+cd /home/rfqserver/web2019/server
+source venv/bin/activate
+python3 -m flask --app rfq run --port=5000

m-labs-intl/setup.md

@@ -0,0 +1,99 @@
+# Setup m-labs-intl.com server
+
+```shell
+# Install required packages
+apt install git nginx-full python3 python3.12-venv python3-pip iptables ufw \
+  strongswan strongswan-swanctl strongswan-pki strongswan-libcharon
+snap install --classic certbot
+ln -s /snap/bin/certbot /usr/bin/certbot
+
+# Set up networks (includes GRE)
+cp 60-tunnels.yaml /etc/netplan/
+netplan apply
+
+# set up IPsec-AH connection
+cp m-labs.hk.conf /etc/swanctl/conf.d/
+echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf
+sysctl -p
+cp m-labs.hk /etc/swanctl/pubkey/m-labs.hk # get pubkey from nixbld
+pki --gen --type rsa --size 4096 --outform pem > /etc/swanctl/private/m-labs-intl.com
+pki --pub --in /etc/swanctl/private/m-labs-intl.com --outform pem > /etc/swanctl/pubkey/m-labs-intl.com
+cp /etc/swanctl/pubkey/m-labs-intl.com m-labs-intl.com # add it to the nixbld
+systemctl enable strongswan --now
+systemctl restart strongswan
+
+# Set up website
+cp m-labs-intl.com /etc/nginx/sites-available/
+cp nginx.conf /etc/nginx/
+ln -s /etc/nginx/sites-available/m-labs-intl.com /etc/nginx/sites-enabled/
+systemctl enable nginx --now
+service nginx restart
+
+# Issue SSL certificate - website only, the mail is on the HK side
+certbot --nginx
+service nginx restart
+
+# Create a user for automatic website deployment from nixbld
+useradd -m zolaupd
+mkdir -p /var/www/m-labs-intl.com/html
+chown -R zolaupd /var/www/m-labs-intl.com/
+sudo -u zolaupd sh -c '
+  cd /home/zolaupd;
+  mkdir /home/zolaupd/.ssh;
+  echo -n "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP1OJJM8g/1ffxDjN31XKEfGmrYaW03lwpyTa1UGWqVx
+  ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF6R6XK0IiuAKxVKvSABm4m9bfOlvfJcMvTpjenuXUPv" > /home/zolaupd/.ssh/authorized_keys
+  chmod 700 .ssh/
+  chmod 600 .ssh/authorized_keys
+  '
+
+# Create a user for RFQ hooks service
+useradd -m rfqserver
+cp runrfq.sh /home/rfqserver/
+cp mail.secret /home/rfqserver/
+chown rfqserver /home/rfqserver/runrfq.sh
+chmod +x /home/rfqserver/runrfq.sh
+chown rfqserver /home/rfqserver/mail.secret
+
+sudo -u rfqserver sh -c '
+  cd /home/rfqserver;
+  git clone https://git.m-labs.hk/M-Labs/web2019.git;
+  cd web2019;
+  python3 -m venv ./venv;
+  source venv/bin/activate;
+  pip install -r requirements.txt;
+'
+cp rfq.service /etc/systemd/system/
+
+# Automate port forwarding rules creation
+cp gretun.sh /root/gretun.sh
+cp gretun_down.sh /root/gretun_down.sh
+chmod u+x /root/gretun.sh
+chmod u+x /root/gretun_down.sh
+cp gretun.service /etc/systemd/system/
+
+# Enable custom services
+systemctl daemon-reload
+systemctl enable rfq.service --now
+systemctl enable gretun.service --now
+
+# Setup basic firewall rules  
+ufw default deny
+ufw default allow outgoing
+
+ufw allow from 94.190.212.123
+ufw allow from 2001:470:f891:1::/64
+ufw allow from 202.77.7.238
+ufw allow from 2001:470:18:390::2
+ufw allow "Nginx HTTP"
+ufw allow "Nginx HTTPS"
+ufw limit OpenSSH
+ufw allow 25/tcp
+ufw allow 587/tcp
+ufw limit 500,4500/udp
+
+ufw route allow in on gre1 out on eth0
+ufw allow from 10.47.3.0/31
+
+ufw show added
+ufw enable
+```

nixbld-etc-nixos/afws-module.nix

@@ -0,0 +1,66 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  afws = pkgs.callPackage ./afws { inherit pkgs; };
+in
+{
+  options.services.afws = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable AFWS server";
+    };
+    logFile = mkOption {
+      type = types.str;
+      default = "/var/lib/afws/logs/afws.log";
+      description = "Path to the log file";
+    };
+    logBackupCount = mkOption {
+      type = types.int;
+      default = 30;
+      description = "Number of daily log files to keep";
+    };
+  };
+
+  config = mkIf config.services.afws.enable {
+    systemd.services.afws = {
+      description = "AFWS server";
+      wantedBy = [ "multi-user.target" ];
+      preStart = ''
+        mkdir -p "$(dirname ${config.services.afws.logFile})"
+        chown afws:afws "$(dirname ${config.services.afws.logFile})"
+      '';
+      serviceConfig = {
+        User = "afws";
+        Group = "afws";
+        ExecStart = ''
+          ${afws}/bin/afws_server \
+            --log-file ${config.services.afws.logFile} \
+            --log-backup-count ${toString config.services.afws.logBackupCount}
+        '';
+        ExecReload = "${pkgs.coreutils}/bin/kill -USR1 $MAINPID";
+      };
+      path = [ pkgs.nix pkgs.git ];
+    };
+
+    security.acme.certs."afws.m-labs.hk".postRun =
+      ''
+      mkdir -p /var/lib/afws/cert
+      cp cert.pem /var/lib/afws/cert
+      cp key.pem /var/lib/afws/cert
+      chown -R afws:afws /var/lib/afws/cert
+      '';
+    security.acme.certs."afws.m-labs.hk".reloadServices = [ "afws.service" ];
+
+    users.users.afws = {
+      name = "afws";
+      group = "afws";
+      description = "AFWS server user";
+      isSystemUser = true;
+      createHome = false;
+      home = "/var/lib/afws";
+      useDefaultShell = true;
+    };
+    users.extraGroups.afws = {};
+  };
+}

nixbld-etc-nixos/backup-module.nix

@@ -1,30 +1,37 @@
 { config, pkgs, lib, ... }:
 with lib;
 let
+  excludePaths = [
+    "/var/lib/gitea/repositories/*/*.git/archives"
+    "/var/lib/gitea/data/repo-archive"
+    "/var/lib/gitea/data/indexers"
+    "/var/vmail/m-labs.hk/js"
+    "/var/lib/afws/.cache"
+    "/var/lib/mattermost/data/2019*"
+    "/var/lib/mattermost/data/2020*"
+    "/var/lib/mattermost/data/2021*"
+    "/var/lib/mattermost/data/2022*"
+    "/var/lib/mattermost/data/2023*"
+  ];
   makeBackup = pkgs.writeScript "make-backup" ''
-    #!${pkgs.bash}/bin/bash
+    #!${pkgs.bash}/bin/bash -p
 
     set -e
     umask 0077
 
-    FILENAME=backup-`date +%F`.tar.bz2.gpg
-
     DBDUMPDIR=`mktemp -d`
-    pushd $DBDUMPDIR
+    trap "rm -rf $DBDUMPDIR" EXIT
+    cd $DBDUMPDIR
 
-    ${config.services.mysql.package}/bin/mysqldump --single-transaction flarum > flarum.sql
-    ${pkgs.sudo}/bin/sudo -u mattermost ${config.services.postgresql.package}/bin/pg_dump mattermost > mattermost.sql
+    ${config.services.mysql.package}/bin/mysqldump --user=root --single-transaction flarum > flarum.sql
+    ${config.services.postgresql.package}/bin/pg_dump mattermost > mattermost.sql
+    ${config.services.postgresql.package}/bin/pg_dump rt5 > rt.sql
+    ${config.services.postgresql.package}/bin/pg_dump gitea > gitea.sql
 
-    ${pkgs.gnutar}/bin/tar cf - --exclude "/var/lib/gitea/repositories/*/*.git/archives" /etc/nixos /var/lib/gitea flarum.sql mattermost.sql | \
+    exec 6< /etc/nixos/secret/backup-passphrase
+    ${pkgs.gnutar}/bin/tar cf - ${lib.concatMapStringsSep " " (p: "--exclude \"${p}\"") excludePaths} /etc/nixos /var/vmail /var/lib/hedgedoc /var/lib/gitea /var/lib/afws /var/lib/mattermost/data /var/www/193thz flarum.sql mattermost.sql rt.sql gitea.sql | \
         ${pkgs.bzip2}/bin/bzip2 | \
-        ${pkgs.gnupg}/bin/gpg --symmetric --batch --passphrase-file /etc/nixos/secret/backup-passphrase | \
-        tee --output-error=warn /tank/backup/$FILENAME | \
-        ${pkgs.rclone}/bin/rclone rcat --config /etc/nixos/secret/rclone.conf dropbox:$FILENAME
-
-    popd
-    rm -rf $DBDUMPDIR
-
-    echo Backup done
+        ${pkgs.gnupg}/bin/gpg --symmetric --batch --passphrase-fd 6
   '';
   cfg = config.services.mlabs-backup;
 in
@@ -38,20 +45,20 @@ in
   };
 
   config = mkIf cfg.enable {
-    systemd.services.mlabs-backup = {
-      description = "M-Labs backup";
-      serviceConfig = {
-        Type = "oneshot";
-        User = "root";
-        Group = "root";
-        ExecStart = "${makeBackup}";
-      };
+    users.extraGroups.backupdl = { };
+    users.extraUsers.backupdl = {
+      isNormalUser = true;
+      extraGroups = ["backupdl" "nextcloud"];
+      openssh.authorizedKeys.keys = [
+        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQCbH+l0FIBTPdUKOS9H5OOT5ro/nljKLsiCTzTzublCScdPPmCNy27ORbLgNHX5Ughlug5wr2rAIU9AexV+L71V5MeVHUWDfKgRsNIpUTtY6wpJkAP7r1ipk2kTWc/sxhrxyPea62cohmy1dOeLlwXO6U8FnsiZfYKmgjZ8wuTo6ixDB8krXsAZ8VY/bj5WFcXqeW8GF1Qjpel7HgpCpj3HIUyC63uwIyUoYe+cgnhjzNLbRYdU9Yx2iqcUCwEUX2cMdz5VX+xbLkL8CWcuiMFg6TFo+CUPFtuA/kVzHcZ4Pa3BiilL3rf7oXlIXGN12JVsN+caX7j2weVqm2b5u5eVsyDxiLx1KA37ukq92CYAAdOuKE+saMPsLuOn+Qd9B6D5oYnYgsWg460uEGgwczwOTXLAZTT5wrwRaKIE+ezKqtRP+Tz7l2IEixulyj1MUR+XpSwECZXiFJx5DGofwzxcd2kWnNOPBReDkHv0At5ZLNIrLuxFMz2L6UXbqvHwEu8= backupdl@minipc"
+      ];
     };
-
-    systemd.timers.mlabs-backup = {
-      description = "M-Labs backup";
-      wantedBy = [ "timers.target" ];
-      timerConfig.OnCalendar = "weekly";
+    security.wrappers.mlabs-backup = {
+      source = makeBackup;
+      setuid = true;
+      owner = "root";
+      group = "backupdl";
+      permissions = "g+x";
     };
   };
 }

nixbld-etc-nixos/flarum-update.nix

@@ -1,29 +0,0 @@
-# Run with: nix-shell flarum-update.nix
-
-{ pkgs ? import <nixpkgs> {}
-}:
-
-with pkgs;
-let
-  composer2nix = import (fetchFromGitHub {
-    owner = "svanderburg";
-    repo = "composer2nix";
-    rev = "v0.0.4";
-    sha256 = "0q0x3in43ss1p0drhc5lp5bnp2jqni1i7zxm7lmjl5aad9nkn3gf";
-  }) { inherit pkgs; };
-in
-stdenv.mkDerivation {
-  name = "flarum-update";
-  buildInputs = [ phpPackages.composer composer2nix ];
-  shellHook = ''
-    OUT=$(pwd)/flarum
-
-    cd $(mktemp -d)
-    composer create-project flarum/flarum . --stability=beta
-    composer require fof/upload
-
-    composer2nix
-    cp -v *.nix composer.{json,lock} $OUT/
-    exit
-  '';
-}

nixbld-etc-nixos/flarum.nix

@@ -1,61 +0,0 @@
-{ config, pkgs, ... }:
-let
-  flarumPackage = with pkgs; stdenv.mkDerivation {
-    name = "flarum-package";
-    src = fetchFromGitHub {
-      owner = "flarum";
-      repo = "flarum";
-      rev = "v0.1.0-beta.13";
-      sha256 = "0mj6w7nibdqmi7lx2r5d9yiif6lb584l93551i115a9ly3s4yinn";
-    };
-    buildPhase =
-      ''
-      cp ${./flarum}/* .
-      '';
-    installPhase =
-      ''
-      cp -ar . $out
-      '';
-  };
-  flarum = import "${flarumPackage}" {
-    inherit pkgs;
-    noDev = true;
-  };
-  cfg = config.services.flarum;
-in
-{
-  options.services.flarum = with pkgs.lib; {
-    user = mkOption {
-      type = types.str;
-      default = "nobody";
-    };
-    group = mkOption {
-      type = types.str;
-      default = "nogroup";
-    };
-    installPath = mkOption {
-      type = types.str;
-      default = "/var/www/flarum";
-    };
-  };
-
-  config.systemd.services.flarum-install = {
-    description = "Flarum installation";
-    before = [ "nginx.service" "phpfm-flarum.service" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-    };
-    path = [ pkgs.rsync ];
-    script = with cfg; ''
-      mkdir -p ${installPath}
-      rsync --links --recursive ${flarum}/ ${installPath}
-      for d in ${installPath} ${installPath}/public/assets \
-          ${installPath}/storage ${installPath}/storage/*
-      do
-          chown ${user}:${group} $d
-          chmod 0775 $d
-      done
-    '';
-  };
-}

nixbld-etc-nixos/flarum/composer-env.nix

@@ -1,238 +0,0 @@
-# This file originates from composer2nix
-
-{ stdenv, writeTextFile, fetchurl, php, unzip, phpPackages }:
-
-let
-  inherit (phpPackages) composer;
-  buildZipPackage = { name, src }:
-    stdenv.mkDerivation {
-      inherit name src;
-      buildInputs = [ unzip ];
-      buildCommand = ''
-        unzip $src
-        baseDir=$(find . -type d -mindepth 1 -maxdepth 1)
-        cd $baseDir
-        mkdir -p $out
-        mv * $out
-      '';
-    };
-
-  buildPackage =
-    { name
-    , src
-    , packages ? {}
-    , devPackages ? {}
-    , buildInputs ? []
-    , symlinkDependencies ? false
-    , executable ? false
-    , removeComposerArtifacts ? false
-    , postInstall ? ""
-    , noDev ? false
-    , unpackPhase ? "true"
-    , buildPhase ? "true"
-    , ...}@args:
-
-    let
-      reconstructInstalled = writeTextFile {
-        name = "reconstructinstalled.php";
-        executable = true;
-        text = ''
-          #! ${php}/bin/php
-          <?php
-          if(file_exists($argv[1]))
-          {
-              $composerLockStr = file_get_contents($argv[1]);
-
-              if($composerLockStr === false)
-              {
-                  fwrite(STDERR, "Cannot open composer.lock contents\n");
-                  exit(1);
-              }
-              else
-              {
-                  $config = json_decode($composerLockStr, true);
-
-                  if(array_key_exists("packages", $config))
-                      $allPackages = $config["packages"];
-                  else
-                      $allPackages = array();
-
-                  ${stdenv.lib.optionalString (!noDev) ''
-                    if(array_key_exists("packages-dev", $config))
-                        $allPackages = array_merge($allPackages, $config["packages-dev"]);
-                  ''}
-
-                  $packagesStr = json_encode($allPackages, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
-                  print($packagesStr);
-              }
-          }
-          else
-              print("[]");
-          ?>
-        '';
-      };
-
-      constructBin = writeTextFile {
-        name = "constructbin.php";
-        executable = true;
-        text = ''
-          #! ${php}/bin/php
-          <?php
-          $composerJSONStr = file_get_contents($argv[1]);
-
-          if($composerJSONStr === false)
-          {
-              fwrite(STDERR, "Cannot open composer.json contents\n");
-              exit(1);
-          }
-          else
-          {
-              $config = json_decode($composerJSONStr, true);
-
-              if(array_key_exists("bin-dir", $config))
-                  $binDir = $config["bin-dir"];
-              else
-                  $binDir = "bin";
-
-              if(array_key_exists("bin", $config))
-              {
-                  if(!file_exists("vendor/".$binDir))
-                      mkdir("vendor/".$binDir);
-
-                  foreach($config["bin"] as $bin)
-                      symlink("../../".$bin, "vendor/".$binDir."/".basename($bin));
-              }
-          }
-          ?>
-        '';
-      };
-
-      bundleDependencies = dependencies:
-        stdenv.lib.concatMapStrings (dependencyName:
-          let
-            dependency = dependencies.${dependencyName};
-          in
-          ''
-            ${if dependency.targetDir == "" then ''
-              vendorDir="$(dirname ${dependencyName})"
-              mkdir -p "$vendorDir"
-              ${if symlinkDependencies then
-                ''ln -s "${dependency.src}" "$vendorDir/$(basename "${dependencyName}")"''
-                else
-                ''cp -av "${dependency.src}" "$vendorDir/$(basename "${dependencyName}")"''
-              }
-            '' else ''
-              namespaceDir="${dependencyName}/$(dirname "${dependency.targetDir}")"
-              mkdir -p "$namespaceDir"
-              ${if symlinkDependencies then
-                ''ln -s "${dependency.src}" "$namespaceDir/$(basename "${dependency.targetDir}")"''
-              else
-                ''cp -av "${dependency.src}" "$namespaceDir/$(basename "${dependency.targetDir}")"''
-              }
-            ''}
-          '') (builtins.attrNames dependencies);
-
-      extraArgs = removeAttrs args [ "name" "packages" "devPackages" "buildInputs" ];
-    in
-    stdenv.mkDerivation ({
-      name = "composer-${name}";
-      buildInputs = [ php composer ] ++ buildInputs;
-
-      inherit unpackPhase buildPhase;
-
-      installPhase = ''
-        ${if executable then ''
-          mkdir -p $out/share/php
-          cp -av $src $out/share/php/$name
-          chmod -R u+w $out/share/php/$name
-          cd $out/share/php/$name
-        '' else ''
-          cp -av $src $out
-          chmod -R u+w $out
-          cd $out
-        ''}
-
-        # Remove unwanted files
-        rm -f *.nix
-
-        export HOME=$TMPDIR
-
-        # Remove the provided vendor folder if it exists
-        rm -Rf vendor
-
-        # If there is no composer.lock file, compose a dummy file.
-        # Otherwise, composer attempts to download the package.json file from
-        # the registry which we do not want.
-        if [ ! -f composer.lock ]
-        then
-            cat > composer.lock <<EOF
-        {
-            "packages": []
-        }
-        EOF
-        fi
-
-        # Reconstruct the installed.json file from the lock file
-        mkdir -p vendor/composer
-        ${reconstructInstalled} composer.lock > vendor/composer/installed.json
-
-        # Copy or symlink the provided dependencies
-        cd vendor
-        ${bundleDependencies packages}
-        ${stdenv.lib.optionalString (!noDev) (bundleDependencies devPackages)}
-        cd ..
-
-        # Reconstruct autoload scripts
-        # We use the optimize feature because Nix packages cannot change after they have been built
-        # Using the dynamic loader for a Nix package is useless since there is nothing to dynamically reload.
-        composer dump-autoload --optimize ${stdenv.lib.optionalString noDev "--no-dev"}
-
-        # Run the install step as a validation to confirm that everything works out as expected
-        composer install --optimize-autoloader ${stdenv.lib.optionalString noDev "--no-dev"}
-
-        ${stdenv.lib.optionalString executable ''
-          # Reconstruct the bin/ folder if we deploy an executable project
-          ${constructBin} composer.json
-          ln -s $(pwd)/vendor/bin $out/bin
-        ''}
-
-        ${stdenv.lib.optionalString (!symlinkDependencies) ''
-          # Patch the shebangs if possible
-          if [ -d $(pwd)/vendor/bin ]
-          then
-              # Look for all executables in bin/
-              for i in $(pwd)/vendor/bin/*
-              do
-                  # Look for their location
-                  realFile=$(readlink -f "$i")
-
-                  # Restore write permissions
-                  chmod u+wx "$(dirname "$realFile")"
-                  chmod u+w "$realFile"
-
-                  # Patch shebang
-                  sed -e "s|#!/usr/bin/php|#!${php}/bin/php|" \
-                      -e "s|#!/usr/bin/env php|#!${php}/bin/php|" \
-                      "$realFile" > tmp
-                  mv tmp "$realFile"
-                  chmod u+x "$realFile"
-              done
-          fi
-        ''}
-
-        if [ "$removeComposerArtifacts" = "1" ]
-        then
-            # Remove composer stuff
-            rm -f composer.json composer.lock
-        fi
-
-        # Execute post install hook
-        runHook postInstall
-    '';
-  } // extraArgs);
-in
-{
-  composer = stdenv.lib.makeOverridable composer;
-  buildZipPackage = stdenv.lib.makeOverridable buildZipPackage;
-  buildPackage = stdenv.lib.makeOverridable buildPackage;
-}

nixbld-etc-nixos/flarum/composer.json

@@ -1,69 +0,0 @@
-{
-    "name": "flarum/flarum",
-    "description": "Delightfully simple forum software.",
-    "type": "project",
-    "keywords": [
-        "forum",
-        "discussion"
-    ],
-    "homepage": "https://flarum.org/",
-    "license": "MIT",
-    "authors": [
-        {
-            "name": "Franz Liedke",
-            "email": "franz@develophp.org"
-        },
-        {
-            "name": "Daniel Klabbers",
-            "email": "daniel@klabbers.email",
-            "homepage": "https://luceos.com"
-        },
-        {
-            "name": "David Sevilla Martin",
-            "email": "me+flarum@datitisev.me",
-            "homepage": "https://datitisev.me"
-        },
-        {
-            "name": "Clark Winkelmann",
-            "email": "clark.winkelmann@gmail.com",
-            "homepage": "https://clarkwinkelmann.com"
-        },
-        {
-            "name": "Matthew Kilgore",
-            "email": "matthew@kilgore.dev"
-        }
-    ],
-    "support": {
-        "issues": "https://github.com/flarum/core/issues",
-        "source": "https://github.com/flarum/flarum",
-        "docs": "https://flarum.org/docs/"
-    },
-    "require": {
-        "flarum/approval": "^0.1.0",
-        "flarum/auth-facebook": "^0.1.0",
-        "flarum/auth-github": "^0.1.0",
-        "flarum/auth-twitter": "^0.1.0",
-        "flarum/bbcode": "^0.1.0",
-        "flarum/core": "^0.1.0",
-        "flarum/emoji": "^0.1.0",
-        "flarum/flags": "^0.1.0",
-        "flarum/lang-english": "^0.1.0",
-        "flarum/likes": "^0.1.0",
-        "flarum/lock": "^0.1.0",
-        "flarum/markdown": "^0.1.0",
-        "flarum/mentions": "^0.1.0",
-        "flarum/pusher": "^0.1.0",
-        "flarum/statistics": "^0.1.0",
-        "flarum/sticky": "^0.1.0",
-        "flarum/subscriptions": "^0.1.0",
-        "flarum/suspend": "^0.1.0",
-        "flarum/tags": "^0.1.0",
-        "fof/upload": "^0.10.0"
-    },
-    "config": {
-        "preferred-install": "dist",
-        "sort-packages": true
-    },
-    "minimum-stability": "beta",
-    "prefer-stable": true
-}

nixbld-etc-nixos/flarum/default.nix

@@ -1,13 +1,39 @@
-{pkgs ? import <nixpkgs> {
-    inherit system;
-  }, system ? builtins.currentSystem, noDev ? false}:
+{
+  lib,
+  php,
+  fetchFromGitHub,
+  fetchpatch,
+}:
 
-let
-  composerEnv = import ./composer-env.nix {
-    inherit (pkgs) stdenv writeTextFile fetchurl php unzip phpPackages;
+php.buildComposerProject (finalAttrs: {
+  pname = "flarum";
+  version = "1.8.1";
+
+  src = fetchFromGitHub {
+    owner = "flarum";
+    repo = "flarum";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-kigUZpiHTM24XSz33VQYdeulG1YI5s/M02V7xue72VM=";
   };
-in
-import ./php-packages.nix {
-  inherit composerEnv noDev;
-  inherit (pkgs) fetchurl fetchgit fetchhg fetchsvn;
-}
+
+  patches = [
+    # Add useful extensions from https://github.com/FriendsOfFlarum
+    # Extensions included: fof/upload, fof/polls, fof/subscribed
+    ./fof-extensions.patch
+  ];
+
+  composerLock = ./composer.lock;
+  composerStrictValidation = false;
+  vendorHash = "sha256-GLE5ZtzZmQ8YbitV6LG744QHoGxlj5TfC5wP2a3eFpU=";
+
+  meta = with lib; {
+    changelog = "https://github.com/flarum/framework/blob/main/CHANGELOG.md";
+    description = "Flarum is a delightfully simple discussion platform for your website";
+    homepage = "https://github.com/flarum/flarum";
+    license = lib.licenses.mit;
+    maintainers = with maintainers; [
+      fsagbuya
+      jasonodoom
+    ];
+  };
+})

nixbld-etc-nixos/flarum/fof-extensions.patch

@@ -0,0 +1,16 @@
+diff --git a/composer.json b/composer.json
+index c63b5f8..5ad1186 100644
+--- a/composer.json
++++ b/composer.json
+@@ -37,7 +37,10 @@
+         "flarum/sticky": "*",
+         "flarum/subscriptions": "*",
+         "flarum/suspend": "*",
+-        "flarum/tags": "*"
++        "flarum/tags": "*",
++        "fof/polls": "*",
++        "fof/subscribed": "*",
++        "fof/upload": "*"
+     },
+     "config": {
+         "preferred-install": "dist",

nixbld-etc-nixos/ghbackup-179.patch

@@ -0,0 +1,61 @@
+diff --git a/github_backup/github_backup.py b/github_backup/github_backup.py
+index 4ef8b7e..82cbdca 100644
+--- a/github_backup/github_backup.py
++++ b/github_backup/github_backup.py
+@@ -425,7 +425,7 @@ def get_github_repo_url(args, repository):
+     return repo_url
+ 
+ 
+-def retrieve_data_gen(args, template, query_args=None, single_request=False):
++def retrieve_data_gen(args, template, query_args=None, single_request=False, optional=False):
+     auth = get_auth(args, encode=not args.as_app)
+     query_args = get_query_args(query_args)
+     per_page = 100
+@@ -452,6 +452,11 @@ def retrieve_data_gen(args, template, query_args=None, single_request=False):
+         else:
+             read_error = False
+ 
++        # Requested data does not exist for this repository, but that was expected.
++        # Generate an empty list.
++        if status_code == 404 and optional:
++            return
++
+         # be gentle with API request limit and throttle requests if remaining requests getting low
+         limit_remaining = int(r.headers.get('x-ratelimit-remaining', 0))
+         if args.throttle_limit and limit_remaining <= args.throttle_limit:
+@@ -509,8 +514,8 @@ def retrieve_data_gen(args, template, query_args=None, single_request=False):
+             break
+ 
+ 
+-def retrieve_data(args, template, query_args=None, single_request=False):
+-    return list(retrieve_data_gen(args, template, query_args, single_request))
++def retrieve_data(args, template, query_args=None, single_request=False, optional=False):
++    return list(retrieve_data_gen(args, template, query_args, single_request, optional))
+ 
+ 
+ def get_query_args(query_args=None):
+@@ -1011,7 +1016,8 @@ def backup_hooks(args, repo_cwd, repository, repos_template):
+                      'hooks',
+                      template,
+                      output_file,
+-                     hook_cwd)
++                     hook_cwd,
++                     optional=not args.include_hooks)
+     except SystemExit:
+         log_info("Unable to read hooks, skipping")
+ 
+@@ -1158,12 +1164,12 @@ def backup_account(args, output_directory):
+                      account_cwd)
+ 
+ 
+-def _backup_data(args, name, template, output_file, output_directory):
++def _backup_data(args, name, template, output_file, output_directory, optional=False):
+     skip_existing = args.skip_existing
+     if not skip_existing or not os.path.exists(output_file):
+         log_info('Retrieving {0} {1}'.format(args.user, name))
+         mkdir_p(output_directory)
+-        data = retrieve_data(args, template)
++        data = retrieve_data(args, template, optional=optional)
+ 
+         log_info('Writing {0} {1} to disk'.format(len(data), name))
+         with codecs.open(output_file, 'w', encoding='utf-8') as f:

nixbld-etc-nixos/gitea-home.tmpl

@@ -3,7 +3,7 @@
 	<div class="ui stackable middle very relaxed page grid">
 		<div class="sixteen wide center aligned centered column">
 			<div>
-				<img class="logo" src="{{AppSubUrl}}/img/gitea-lg.png" />
+				<img class="logo" width="220" height="220" src="{{AssetUrlPrefix}}/img/logo.svg"/>
 			</div>
 			<div class="hero">
 				<h1 class="ui icon header title">
@@ -15,7 +15,7 @@
 	<div class="ui stackable middle very relaxed page grid">
 		<div class="sixteen wide center column">
 			<p class="large">
-				Welcome! This Gitea instance is here to support projects related to <a href="https://m-labs.hk">M-Labs</a>. You may want to browse the <a href="https://git.m-labs.hk/M-Labs/">M-Labs organization</a> where many projects are located. If you would like an account (we give them to anyone who wants to contribute on projects related to Sinara, ARTIQ, nMigen, etc.), simply write a short email to sb@m-***.hk stating the username you would like to have.
+				Welcome! This Gitea instance is here to support projects related to <a href="https://m-labs.hk">M-Labs</a>. You may want to browse the <a href="https://git.m-labs.hk/M-Labs/">M-Labs organization</a> where many projects are located. If you would like an account (we give them to anyone who wants to contribute on projects related to Sinara, ARTIQ, nMigen, etc.), simply write a short email to sb@m-labs.hk stating the username you would like to have.
 			</p>
 		</div>
 	</div>

nixbld-etc-nixos/gitea-signin.tmpl

@@ -0,0 +1,11 @@
+{{template "base/head" .}}
+<div class="page-content user signin{{if .LinkAccountMode}} icon{{end}}">
+	{{template "user/auth/signin_navbar" .}}
+	<div class="ui middle very relaxed page grid">
+		<div class="ui container column fluid">
+			{{template "user/auth/signin_inner" .}}
+			To get an account (also available to external contributors), simply write to sb@m-labs.hk.
+		</div>
+	</div>
+</div>
+{{template "base/footer" .}}

nixbld-etc-nixos/github-backup-module.nix

@@ -0,0 +1,67 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  python-github-backup = pkgs.python3Packages.buildPythonApplication {
+    name = "python-github-backup";
+    src = pkgs.fetchFromGitHub {
+      owner = "josegonzalez";
+      repo = "python-github-backup";
+      rev = "18e78a4d66120961590836e63d1fa939e4d036f3";
+      sha256 = "1c5qxyv322z5zkx8mxdwdqrnjgqhk00aqcgwkn53b4xkfr2idkbn";
+    };
+    patches = [ ./ghbackup-179.patch ];
+    propagatedBuildInputs = [ pkgs.git ];
+  };
+  token = (import /etc/nixos/secret/github_tokens.nix).backup;
+  makeBackup = pkgs.writeScript "make-ghbackup" ''
+    #!${pkgs.bash}/bin/bash
+
+    set -e
+
+    ${python-github-backup}/bin/github-backup m-labs -t ${token} --all -i -o /var/lib/ghbackup/m-labs
+    ${python-github-backup}/bin/github-backup quartiq -t ${token} --all -i -o /var/lib/ghbackup/quartiq
+    ${python-github-backup}/bin/github-backup sinara-hw -t ${token} --all -i -o /var/lib/ghbackup/sinara-hw
+
+    echo GitHub backup done
+  '';
+
+  cfg = config.services.ghbackup;
+in
+{
+  options.services.ghbackup = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable backups";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.ghbackup = {
+      description = "GitHub backup";
+      serviceConfig = {
+        Type = "oneshot";
+        User = "ghbackup";
+        Group = "ghbackup";
+        ExecStart = "${makeBackup}";
+      };
+    };
+
+    users.users.ghbackup = {
+      name = "ghbackup";
+      group = "ghbackup";
+      description = "GitHub backups user";
+      isSystemUser = true;
+      createHome = true;
+      home = "/var/lib/ghbackup";
+      useDefaultShell = true;
+    };
+    users.extraGroups.ghbackup = {};
+
+    systemd.timers.ghbackup = {
+      description = "GitHub backup";
+      wantedBy = [ "timers.target" ];
+      timerConfig.OnCalendar = "daily";
+    };
+  };
+}

nixbld-etc-nixos/hydra-msys2.patch

@@ -0,0 +1,122 @@
+diff --git a/src/root/product-list.tt b/src/root/product-list.tt
+index 4d545b3e..6049c2a6 100644
+--- a/src/root/product-list.tt
++++ b/src/root/product-list.tt
+@@ -162,6 +162,11 @@
+             <img src="[% c.uri_for("/static/images/iso.png") %]" alt="ISO" />
+           </td>
+           <td>ISO-9660 CD/DVD image</td>
++        [% CASE "msys2" %]
++          <td>
++            <img src="[% c.uri_for("/static/images/msys2.svg") %]" alt="MSYS2" width="32" height="32" />
++          </td>
++          <td>MSYS2 package</td>
+         [% CASE "binary-dist" %]
+           <td>
+             <img src="[% c.uri_for("/static/images/binary-dist.png") %]" alt="Binary distribution" />
+diff --git a/src/root/static/images/msys2.svg b/src/root/static/images/msys2.svg
+new file mode 100644
+index 00000000..46baff50
+--- /dev/null
++++ b/src/root/static/images/msys2.svg
+@@ -0,0 +1,100 @@
++<?xml version="1.0" encoding="UTF-8" standalone="no"?>
++<!-- Created with Inkscape (http://www.inkscape.org/) -->
++
++<svg
++   width="36.777081mm"
++   height="36.777081mm"
++   viewBox="0 0 36.77708 36.777081"
++   version="1.1"
++   id="svg8"
++   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
++   sodipodi:docname="msys2_logo.svg"
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++   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
++   xmlns="http://www.w3.org/2000/svg"
++   xmlns:svg="http://www.w3.org/2000/svg"
++   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
++   xmlns:cc="http://creativecommons.org/ns#"
++   xmlns:dc="http://purl.org/dc/elements/1.1/">
++  <defs
++     id="defs2" />
++  <sodipodi:namedview
++     id="base"
++     pagecolor="#ffffff"
++     bordercolor="#666666"
++     borderopacity="1.0"
++     inkscape:pageopacity="0.0"
++     inkscape:pageshadow="2"
++     inkscape:zoom="3.959798"
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++     inkscape:document-units="mm"
++     inkscape:current-layer="layer1"
++     showgrid="false"
++     fit-margin-top="0"
++     fit-margin-left="0"
++     fit-margin-right="0"
++     fit-margin-bottom="0"
++     inkscape:window-width="2560"
++     inkscape:window-height="1371"
++     inkscape:window-x="0"
++     inkscape:window-y="32"
++     inkscape:window-maximized="1"
++     inkscape:pagecheckerboard="true" />
++  <metadata
++     id="metadata5">
++    <rdf:RDF>
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++         rdf:about="">
++        <dc:format>image/svg+xml</dc:format>
++        <dc:type
++           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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++    </rdf:RDF>
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++     inkscape:label="Layer 1"
++     inkscape:groupmode="layer"
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++       style="fill:#894c84;fill-opacity:1;stroke-width:0"
++       id="rect946"
++       width="36.777081"
++       height="36.777081"
++       x="122.70998"
++       y="169.48973" />
++    <path
++       style="fill:#d35e64;fill-opacity:1;stroke-width:0.133635"
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++    <path
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++       inkscape:connector-curvature="0" />
++    <path
++       style="fill:#d35e64;fill-opacity:1;stroke-width:0.133635"
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++       id="path3832"
++       inkscape:connector-curvature="0"
++       sodipodi:nodetypes="ccssccscsccsssscc" />
++    <path
++       inkscape:connector-curvature="0"
++       id="path3826"
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++       style="fill:#f9f9f9;stroke-width:0.133635" />
++    <g
++       id="g957"
++       transform="translate(36.843901,36.777081)"
++       style="fill:#999999">
++      <path
++         style="fill:#999999;fill-opacity:1;stroke-width:0.264583"
++         d="m 118.48002,154.38963 c -0.21263,-0.77937 -0.60053,-0.53763 -3.77862,-0.53763 -4.23812,0 -4.51001,0.21718 -2.65413,-2.44723 2.45703,-3.52744 3.4906,-5.92399 2.80851,-6.96499 -0.4719,-0.72022 -1.01247,-0.62449 -1.92709,0.34127 -0.84859,0.89603 -1.86894,0.41779 -1.86894,-0.95587 0,-2.01205 2.80561,-3.99992 5.38938,-3.9922 1.61399,0.005 2.43642,0.4039 3.21581,1.56044 1.12027,1.66236 0.73145,3.8557 -1.134,6.39695 -1.54383,2.10311 -0.73385,3.61259 0.95572,1.78109 1.46292,-1.68793 1.55952,0.86073 1.49098,1.70283 -0.2309,2.69619 -2.07701,4.65709 -2.49762,3.11534 z"
++         id="path961"
++         inkscape:connector-curvature="0"
++         sodipodi:nodetypes="sscccscccccs" />
++    </g>
++  </g>
++</svg>

nixbld-etc-nixos/hydra-restrictdist.patch

@@ -1,32 +0,0 @@
-diff --git src/lib/Hydra/Controller/Root.pm src/lib/Hydra/Controller/Root.pm
-index a9b0d558..71869ba0 100644
---- a/src/lib/Hydra/Controller/Root.pm
-+++ b/src/lib/Hydra/Controller/Root.pm
-@@ -19,6 +19,11 @@ use Net::Prometheus;
- # Put this controller at top-level.
- __PACKAGE__->config->{namespace} = '';
- 
-+sub isRedistRestricted {
-+  my ($path) = @_;
-+
-+  return index($path, "-RESTRICTDIST-") >= 0;
-+}
- 
- sub noLoginNeeded {
-   my ($c) = @_;
-@@ -319,6 +324,7 @@ sub nar :Local :Args(1) {
-         $path = $Nix::Config::storeDir . "/$path";
- 
-         gone($c, "Path " . $path . " is no longer available.") unless isValidPath($path);
-+        notFound($c, "Redistribution restricted") if isRedistRestricted($path);
- 
-         $c->stash->{current_view} = 'NixNAR';
-         $c->stash->{storePath} = $path;
-@@ -368,6 +374,7 @@ sub narinfo :LocalRegex('^([a-z0-9]+).narinfo$') :Args(0) {
-             setCacheHeaders($c, 60 * 60);
-             return;
-         }
-+        notFound($c, "Redistribution restricted") if isRedistRestricted($path);
- 
-         $c->stash->{storePath} = $path;
-         $c->forward('Hydra::View::NARInfo');

nixbld-etc-nixos/hydra-unbreak-sysbuild.patch

@@ -1,25 +0,0 @@
-diff --git a/src/lib/Hydra/Schema/Builds.pm b/src/lib/Hydra/Schema/Builds.pm
-index d4334300..014d07ce 100644
---- a/src/lib/Hydra/Schema/Builds.pm
-+++ b/src/lib/Hydra/Schema/Builds.pm
-@@ -608,6 +608,7 @@ makeQueries('', "");
- makeQueries('ForProject', "and project = ?");
- makeQueries('ForJobset', "and jobset_id = ?");
- makeQueries('ForJob', "and jobset_id = ? and job = ?");
-+makeQueries('ForJobName', "and jobset_id = (select id from jobsets j where j.name = ?) and job = ?");
- 
- 
- my %hint = (
-diff --git a/src/script/hydra-eval-jobset b/src/script/hydra-eval-jobset
-index ea336bfc..2f208418 100755
---- a/src/script/hydra-eval-jobset
-+++ b/src/script/hydra-eval-jobset
-@@ -142,7 +142,7 @@ sub fetchInputSystemBuild {
-     $projectName ||= $project->name;
-     $jobsetName ||= $jobset->name;
- 
--    my @latestBuilds = $db->resultset('LatestSucceededForJob')
-+    my @latestBuilds = $db->resultset('LatestSucceededForJobName')
-         ->search({}, {bind => [$jobsetName, $jobName]});
- 
-     my @validBuilds = ();

nixbld-etc-nixos/named/193thz.com

@@ -0,0 +1,29 @@
+$TTL 7200
+
+@						SOA	ns.193thz.com. sb.m-labs.hk. (
+							2024060201
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		ns.193thz.com.
+						NS		ns1.he.net.
+
+						A		94.190.212.123
+						A		202.77.7.238
+						AAAA	2001:470:18:390::2
+						MX		10 mail.m-labs.hk.
+						TXT		"v=spf1 mx a:router.alt.m-labs.hk -all"
+						TXT		"google-site-verification=5eIjLyhM_siRg5Fc2Z3AMSbheH0JFOn5iR3TCEXakqU"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1758987512"
+
+
+ns						A		94.190.212.123
+ns						AAAA	2001:470:18:390::2
+
+mail._domainkey			TXT	"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9T0cONxGXeyETE0bJ6NJVGT58fVFrfb+WxQhMskCN/mJhODyDTkRCjzE8ZnKhZGjkFZNG+PoSZlW+kpSS1LvMwzQpMRaH4zAzIexffR0l7rJR1MuQiVMsfGWpO2SLEuN74L2qH8SUBHZjrRpeSaFxwQm+prIOzZe5wTZStt/6qQIDAQAB"
+_dmarc					TXT	"v=DMARC1; p=none"
+
+www						CNAME	@

nixbld-etc-nixos/named/200-29.98.206.103.in-addr.arpa

@@ -0,0 +1,20 @@
+$TTL 7200
+
+@						SOA	NS.XN--WBTZ5WPQAJ35CFXC.XN--J6W193G. sb.m-labs.hk. (
+							2024060201
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		NS.XN--WBTZ5WPQAJ35CFXC.XN--J6W193G.
+						NS		ns1.he.net.
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1758987512"
+
+200	PTR	router.alt.m-labs.hk.
+201	PTR	stewardship1.alt.m-labs.hk.
+202	PTR	stewardship2.alt.m-labs.hk.
+203	PTR	atse.alt.m-labs.hk.
+204	PTR	nasty-gareth.alt.m-labs.hk.
+205	PTR	zynq.alt.m-labs.hk.

nixbld-etc-nixos/named/m-labs-intl.com

@@ -0,0 +1,30 @@
+$TTL 7200
+
+@						SOA	ns.m-labs-intl.com. sb.m-labs.hk. (
+							2024101401
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		ns.m-labs-intl.com.
+						NS		ns1.he.net.
+						NS		ns1.qnetp.net.
+
+						A		5.78.86.156
+						AAAA	2a01:4ff:1f0:83de::1
+						MX		10 mail.m-labs-intl.com.
+						TXT		"v=spf1 mx -all"
+						TXT		"google-site-verification=BlQd5_5wWW7calKC7bZA0GdoxR8-zj4gwJEg9sGJ3l8"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1768317117"
+
+ns						A		94.190.212.123
+ns						AAAA	2001:470:18:390::2
+
+mail					A		5.78.86.156
+mail._domainkey			IN	TXT	"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJVPuhSGXghO7ib8Em/Se3jfCCIJK5g4zn5pGZ3/e0I0f+zGHMuvwpjkAKf6eSmo/AAXEaco28pDi3qE5xfV512AJsORCfPoPFyNhLsj/qtri6hc5KVSWW0Ja3MSFBINDCaX78c7PXPY+3jJJGpwSBDLjdxj9AQwtfiCVlH4qE/QIDAQAB"
+_dmarc					TXT		"v=DMARC1; p=none"
+
+www						CNAME	@
+hooks					CNAME	@

nixbld-etc-nixos/named/m-labs.hk

@@ -0,0 +1,53 @@
+$TTL 7200
+
+@						SOA	NS.XN--WBTZ5WPQAJ35CFXC.XN--J6W193G. sb.m-labs.hk. (
+							2024080501
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		NS.XN--WBTZ5WPQAJ35CFXC.XN--J6W193G.
+						NS		ns1.qnetp.net.
+						NS		ns1.he.net.
+
+						A		94.190.212.123
+						A		202.77.7.238
+						AAAA	2001:470:18:390::2
+						MX		10 mail.m-labs.hk.
+						TXT		"v=spf1 mx a:router.alt.m-labs.hk -all"
+						TXT		"google-site-verification=Tf_TEGZLG7-2BE70hMjLnzjDZ1qUeUZ6vxzbl1sagT8"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1758987512"
+
+
+mail					A		94.190.212.123
+mail					A		202.77.7.238
+mail					AAAA	2001:470:18:390::2
+mail._domainkey			TXT		"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCl38A/Z0IInVU157qzrWgMfYm2iDHoWZsTyiiOoZdT7kHMzS/M2OMXMt7r5g1/7pCPClsGUDJvKGqVMmjJuPleMyKHwpGeT92qDNEFpt6ahneap/oYx5eBYM/vGcgmleNxyIoBHsptaZvqD4vCEFaC22f8UL5QAgQD3wCH3FwlpQIDAQAB"
+_dmarc					TXT		"v=DMARC1; p=none"
+
+lab						CNAME	@
+www						CNAME	@
+nixbld					CNAME	@
+msys2					CNAME	@
+conda					CNAME	@
+afws					CNAME	@
+git						CNAME	@
+chat					CNAME	@
+hooks					CNAME	@
+forum					CNAME	@
+perso					CNAME	@
+rt						CNAME	@
+files					CNAME	@
+docs					CNAME	@
+
+rpi-1					AAAA	2001:470:f891:1:dea6:32ff:fe8a:6a93
+rpi-4					AAAA	2001:470:f891:1:dea6:32ff:fe14:fce9
+
+router.alt				A		103.206.98.200
+stewardship1.alt		A		103.206.98.201
+stewardship2.alt		A		103.206.98.202
+atse.alt				A		103.206.98.203
+nasty-gareth.alt		A		103.206.98.204
+zynq.alt				A		103.206.98.205

nixbld-etc-nixos/named/m-labs.ph

@@ -0,0 +1,28 @@
+$TTL 7200
+
+@						SOA	ns1.m-labs.ph. sb.m-labs.hk. (
+							2024060201
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		ns1.m-labs.ph.
+						NS		ns1.he.net.
+
+						A		94.190.212.123
+						A		202.77.7.238
+						AAAA	2001:470:18:390::2
+						MX		10 mail.m-labs.hk.
+						TXT		"v=spf1 mx a:router.alt.m-labs.hk -all"
+						TXT		"google-site-verification=g2k8M1fhbYOPs4C37SeGCfNlD6paWcexamji1DXrp0o"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1758987512"
+
+ns1						A		94.190.212.123
+ns1						AAAA	2001:470:18:390::2
+
+mail._domainkey			TXT		"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPUlkoA4Gucsin6P5LSohSOpPbpOELkbKDz9MmB4Zzj4QdcQNtMzU3Uis8WZwVXknQ/6URoDdTa4aR8+PwMi5fjKpLM8ZAnnHJHYebZPDRq6lQo3VGdaCu9NhdjYwFhvK9VRyhwI9i7DUptdLsu/OzbgTlCdWQTOr+MFEkYwmxLQIDAQAB"
+_dmarc					TXT		"v=DMARC1; p=none"
+
+www						CNAME	@

nixbld-etc-nixos/named/malloctech.fr

@@ -0,0 +1,23 @@
+$TTL 7200
+
+@						SOA	ns.malloctech.fr. sb.m-labs.hk. (
+							2024060201
+							7200
+							3600
+							86400
+							600)
+
+
+						NS		ns.malloctech.fr.
+						NS		ns1.he.net.
+
+						MX		10 mail.m-labs.hk.
+						TXT		"v=spf1 mx a:router.alt.m-labs.hk -all"
+						TXT		"google-site-verification=LALF-fafTnmkL-18m3CzwFjSwEV1C7NeKexiNfMYsOw"
+						CAA		0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1758987512"
+
+ns						A		94.190.212.123
+ns						AAAA	2001:470:18:390::2
+
+mail._domainkey			TXT	"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+Op2B9cdVxwyweChOBJtk4LGkLUfxunI3a7sSL0aVnntfPWkKgY7zTL8iOJaqdt/DkkvOz++HEsn3AzleXsdibaTC9x6kgrMVgkrsYOKA4bWDLJiUfgq7vvRMdkw6rOqlJp9+faXKIKwtMG9Ckd1+rHBsaFwe7EE0coLbhGZaQQIDAQAB"
+_dmarc					TXT	"v=DMARC1; p=none"

nixbld-etc-nixos/nix-networked-derivations.diff

@@ -1,84 +0,0 @@
-diff --git a/src/libstore/build.cc b/src/libstore/build.cc
-index 53a0958a..16a98aec 100644
---- a/src/libstore/build.cc
-+++ b/src/libstore/build.cc
-@@ -809,9 +809,16 @@ private:
-     /* Whether this is a fixed-output derivation. */
-     bool fixedOutput;
- 
-+    bool networked;
-+
-     /* Whether to run the build in a private network namespace. */
-     bool privateNetwork = false;
- 
-+    bool allowNetwork()
-+    {
-+        return fixedOutput || networked;
-+    }
-+
-     typedef void (DerivationGoal::*GoalState)();
-     GoalState state;
- 
-@@ -1179,6 +1186,8 @@ void DerivationGoal::haveDerivation()
- {
-     trace("have derivation");
- 
-+    fixedOutput = drv->isFixedOutput();
-+
-     retrySubstitution = false;
- 
-     for (auto & i : drv->outputs)
-@@ -1195,6 +1204,8 @@ void DerivationGoal::haveDerivation()
- 
-     parsedDrv = std::make_unique<ParsedDerivation>(drvPath, *drv);
- 
-+    networked = parsedDrv->getBoolAttr("__networked");
-+
-     /* We are first going to try to create the invalid output paths
-        through substitutes.  If that doesn't work, we'll build
-        them. */
-@@ -1987,7 +1998,7 @@ void DerivationGoal::startBuilder()
-         else if (settings.sandboxMode == smDisabled)
-             useChroot = false;
-         else if (settings.sandboxMode == smRelaxed)
--            useChroot = !fixedOutput && !noChroot;
-+            useChroot = !allowNetwork() && !noChroot;
-     }
- 
-     if (worker.store.storeDir != worker.store.realStoreDir) {
-@@ -2153,7 +2164,7 @@ void DerivationGoal::startBuilder()
-                 "nogroup:x:65534:\n") % sandboxGid).str());
- 
-         /* Create /etc/hosts with localhost entry. */
--        if (!fixedOutput)
-+        if (!allowNetwork())
-             writeFile(chrootRootDir + "/etc/hosts", "127.0.0.1 localhost\n::1 localhost\n");
- 
-         /* Make the closure of the inputs available in the chroot,
-@@ -2361,7 +2372,7 @@ void DerivationGoal::startBuilder()
-            us.
-         */
- 
--        if (!fixedOutput)
-+        if (!allowNetwork())
-             privateNetwork = true;
- 
-         userNamespaceSync.create();
-@@ -2573,7 +2584,7 @@ void DerivationGoal::initEnv()
-        to the builder is generally impure, but the output of
-        fixed-output derivations is by definition pure (since we
-        already know the cryptographic hash of the output). */
--    if (fixedOutput) {
-+    if (allowNetwork()) {
-         for (auto & i : parsedDrv->getStringsAttr("impureEnvVars").value_or(Strings()))
-             env[i] = getEnv(i).value_or("");
-     }
-@@ -3184,7 +3195,7 @@ void DerivationGoal::runChild()
-             /* Fixed-output derivations typically need to access the
-                network, so give them access to /etc/resolv.conf and so
-                on. */
--            if (fixedOutput) {
-+            if (allowNetwork()) {
-                 ss.push_back("/etc/resolv.conf");
- 
-                 // Only use nss functions to resolve hosts and

nixbld-etc-nixos/nix-networked-derivations.patch

@@ -0,0 +1,80 @@
+diff --git a/src/libstore/unix/build/local-derivation-goal.cc b/src/libstore/unix/build/local-derivation-goal.cc
+index 2a09e3dd4..7dc03855f 100644
+--- a/src/libstore/unix/build/local-derivation-goal.cc
++++ b/src/libstore/unix/build/local-derivation-goal.cc
+@@ -197,6 +197,8 @@ Goal::Co LocalDerivationGoal::tryLocalBuild()
+ 
+     assert(derivationType);
+ 
++    networked = parsedDrv->getBoolAttr("__networked");
++
+     /* Are we doing a chroot build? */
+     {
+         auto noChroot = parsedDrv->getBoolAttr("__noChroot");
+@@ -214,7 +216,7 @@ Goal::Co LocalDerivationGoal::tryLocalBuild()
+         else if (settings.sandboxMode == smDisabled)
+             useChroot = false;
+         else if (settings.sandboxMode == smRelaxed)
+-            useChroot = derivationType->isSandboxed() && !noChroot;
++            useChroot = !networked && derivationType->isSandboxed() && !noChroot;
+     }
+ 
+     auto & localStore = getLocalStore();
+@@ -737,7 +739,7 @@ void LocalDerivationGoal::startBuilder()
+                 "nogroup:x:65534:\n", sandboxGid()));
+ 
+         /* Create /etc/hosts with localhost entry. */
+-        if (derivationType->isSandboxed())
++        if (!networked && derivationType->isSandboxed())
+             writeFile(chrootRootDir + "/etc/hosts", "127.0.0.1 localhost\n::1 localhost\n");
+ 
+         /* Make the closure of the inputs available in the chroot,
+@@ -938,7 +940,7 @@ void LocalDerivationGoal::startBuilder()
+            us.
+         */
+ 
+-        if (derivationType->isSandboxed())
++        if (!networked && derivationType->isSandboxed())
+             privateNetwork = true;
+ 
+         userNamespaceSync.create();
+@@ -1177,7 +1179,7 @@ void LocalDerivationGoal::initEnv()
+        to the builder is generally impure, but the output of
+        fixed-output derivations is by definition pure (since we
+        already know the cryptographic hash of the output). */
+-    if (!derivationType->isSandboxed()) {
++    if (networked || !derivationType->isSandboxed()) {
+         auto & impureEnv = settings.impureEnv.get();
+         if (!impureEnv.empty())
+             experimentalFeatureSettings.require(Xp::ConfigurableImpureEnv);
+@@ -1851,7 +1853,7 @@ void LocalDerivationGoal::runChild()
+             /* Fixed-output derivations typically need to access the
+                network, so give them access to /etc/resolv.conf and so
+                on. */
+-            if (!derivationType->isSandboxed()) {
++            if (networked || !derivationType->isSandboxed()) {
+                 // Only use nss functions to resolve hosts and
+                 // services. Don’t use it for anything else that may
+                 // be configured for this system. This limits the
+@@ -2083,7 +2085,7 @@ void LocalDerivationGoal::runChild()
+                 #include "sandbox-defaults.sb"
+                 ;
+ 
+-            if (!derivationType->isSandboxed())
++            if (networked || !derivationType->isSandboxed())
+                 sandboxProfile +=
+                     #include "sandbox-network.sb"
+                     ;
+diff --git a/src/libstore/unix/build/local-derivation-goal.hh b/src/libstore/unix/build/local-derivation-goal.hh
+index bf25cf2a6..28f8c1e95 100644
+--- a/src/libstore/unix/build/local-derivation-goal.hh
++++ b/src/libstore/unix/build/local-derivation-goal.hh
+@@ -83,6 +83,8 @@ struct LocalDerivationGoal : public DerivationGoal
+      */
+     Path chrootRootDir;
+ 
++    bool networked;
++
+     /**
+      * RAII object to delete the chroot directory.
+      */

nixbld-etc-nixos/rfq/src/rfq/__init__.py

@@ -14,6 +14,13 @@ from werkzeug.middleware.proxy_fix import ProxyFix
 
 load_dotenv()
 
+mail_password_file = getenv("FLASK_MAIL_PASSWORD_FILE")
+if mail_password_file is not None:
+    with open(mail_password_file, "r") as f:
+        mail_password = f.read().strip()
+else:
+    mail_password = None
+
 app = Flask(__name__)
 app.config.update(
     DEBUG=getenv("FLASK_DEBUG") == "True",
@@ -22,7 +29,7 @@ app.config.update(
     MAIL_USE_SSL=getenv("FLASK_MAIL_USE_SSL"),
     MAIL_DEBUG=False,
     MAIL_USERNAME=getenv("FLASK_MAIL_USERNAME"),
-    MAIL_PASSWORD=getenv("FLASK_MAIL_PASSWORD"),
+    MAIL_PASSWORD=mail_password,
     MAIL_RECIPIENT=getenv("FLASK_MAIL_RECIPIENT"),
     MAIL_SENDER=getenv("FLASK_MAIL_SENDER")
 )

nixbld-etc-nixos/rfq/uwsgi-config.nix

@@ -7,13 +7,13 @@ in {
   pythonPackages = self: [ pkg ];
   module = "rfq:app";
   env = [
-    "FLASK_MAIL_SERVER=ssl.serverraum.org"
+    "FLASK_MAIL_SERVER=mail.m-labs.hk"
     "FLASK_MAIL_PORT=465"
     "FLASK_MAIL_USE_SSL=True"
-    "FLASK_MAIL_USERNAME=sales@m-labs.hk"
-    "FLASK_MAIL_PASSWORD=${import /etc/nixos/secret/sales_password.nix}"
+    "FLASK_MAIL_USERNAME=sysop@m-labs.hk"
+    "FLASK_MAIL_PASSWORD_FILE=/etc/nixos/secret/rfqpassword"
     "FLASK_MAIL_RECIPIENT=sales@m-labs.hk"
-    "FLASK_MAIL_SENDER=sales@m-labs.hk"
+    "FLASK_MAIL_SENDER=sysop@m-labs.hk"
   ];
   socket = "${config.services.uwsgi.runDir}/uwsgi-rfq.sock";
   # allow access from nginx

nixbld-etc-nixos/rt-session.patch

@@ -0,0 +1,11 @@
+diff '--color=auto' -Naur rt-5.0.1/lib/RT/Interface/Web.pm rtpatched/lib/RT/Interface/Web.pm
+--- rt-5.0.1/lib/RT/Interface/Web.pm	1970-01-01 08:00:01.000000000 +0800
++++ rtpatched/lib/RT/Interface/Web.pm	2021-08-12 13:34:08.870669968 +0800
+@@ -948,6 +948,7 @@
+         -path     => RT->Config->Get('WebPath'),
+         -secure   => ( RT->Config->Get('WebSecureCookies') ? 1 : 0 ),
+         -httponly => ( RT->Config->Get('WebHttpOnlyCookies') ? 1 : 0 ),
++        -expires => '+6M',
+     );
+ 
+     $HTML::Mason::Commands::r->err_headers_out->{'Set-Cookie'} = $cookie->as_string;

nixbld-etc-nixos/rt.nix

@@ -0,0 +1,298 @@
+# based on https://gist.github.com/ajs124/ff04ab14435908d914cf5cedbc56a52e
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.services.rt;
+
+  configFile = pkgs.writeTextFile {
+    name = "RT_SiteConfig.pm";
+    text = ''
+      use utf8;
+
+      # System (Base configuration)
+      Set($rtname, '${cfg.rtName}'); # Changing this will break responses to existing tickets
+      Set($Organization, '${cfg.organization}'); # Changing this will break all existing tickets
+      Set($CorrespondAddress, '${cfg.correspondAddress}');
+      Set($CommentAddress, '${cfg.commentAddress}');
+      Set($WebDomain, '${cfg.domain}');
+      Set($Timezone, '${cfg.timeZone}');
+
+      Set($DatabaseType, 'Pg');
+      Set($DatabaseHost, '/run/postgresql');
+      Set($DatabaseUser, 'rt');
+      Set($DatabaseName, 'rt5');
+
+      # System (Logging)
+      Set($LogToSTDERR, undef); # Don't log twice
+
+      # System (Incoming mail gateway)
+      Set($OwnerEmail, '${cfg.ownerEmail}');
+      Set($MaxAttachmentSize, 15360000);
+      Set($CheckMoreMSMailHeaders, 1);
+      Set($RTAddressRegexp, '^(helpdesk)\@(m-labs.hk|m-labs-intl.com)$');
+      Set($LoopsToRTOwner, 0);
+
+      # System (Outgoing mail)
+      Set($SetOutgoingMailFrom, 'helpdesk@m-labs.hk');
+
+      # System (Sendmail configuration)
+      Set($SendmailPath, '${cfg.sendmailPath}');
+      Set($SendmailArguments, '${concatStringsSep " " cfg.sendmailArguments}');
+
+      # System (Application logic)
+      Set($ParseNewMessageForTicketCcs, 1);
+
+      # System (Extra Security)
+      Set($RestrictLoginReferrer, 1);
+
+      # System (Date and time handling)
+      Set($DefaultTimeUnitsToHours, 1);
+      Set($TimeInICal, 1);
+      Set($DateTimeFormat, 'RFC2822');
+
+      # System (Authorization and user configuration)
+      Set($AutoLogoff, 262800); # 6 months
+      Set($WebSecureCookies, 1);
+
+      # Web Interface (Base configuration)
+      Set($CanonicalizeRedirectURLs, 1);
+      Set($CanonicalizeURLsInFeeds, 1);
+      Set($WebBaseURL, '${cfg.baseUrl}');
+      Set($LogoLinkURL, '${cfg.baseUrl}');
+
+      # Web Interface (Home page)
+      Set($DefaultSummaryRows, 50);
+
+      # Web Interface (Ticket search)
+      Set($DefaultSearchResultOrder, 'DESC'); # Display newer tickets first
+      Set($SearchResultsAutoRedirect, 1); # Don't show result list when there is only one match
+      Set(%FullTextSearch,
+          Enable => 1,
+          Indexed => 1,
+          Column => 'ContentIndex',
+          Table => 'AttachmentsIndex',
+      );
+
+      # Web Interface (Ticket options)
+      Set($ShowMoreAboutPrivilegedUsers, 1);
+      Set($MoreAboutRequestorGroupsLimit, undef);
+      Set($HideUnsetFieldsOnDisplay, 1);
+
+      # Web Interface (Articles)
+      Set($ArticleOnTicketCreate, 0);
+
+      # Web Interface (Message box properties)
+      Set($MessageBoxRichText, 0);
+      Set($MessageBoxIncludeSignatureOnComment, 0);
+
+      # Web Interface (Transaction display)
+      Set($MaxInlineBody, 0);
+      Set($SuppressInlineTextFiles, 1);
+
+      # Web Interface (Administrative interface)
+      Set($ShowRTPortal, 0);
+      Set($ShowEditSsytemConfig, 0);
+
+      # Features (External storage)
+      Set(%ExternalStorage,
+          Type => 'Disk',
+          Path => '/var/lib/rt/attachments',
+      );
+      Set($ExternalStorageCutoffSize, 0);
+
+      # Features (Cryptography)
+      Set(%Crypt, RejectOnMissingPrivateKey => 0, RejectOnBadData => 0, AllowEncryptDataInDB => 0);
+      Set(%SMIME, Enable => 1, Keyring => '${pkgs.cacert}/etc/ssl/certs/');
+      Set(%GnuPG, Enable => 1);
+      Set(%GnuPGOptions,
+        'keyserver' => 'hkp://keys.openpgp.org',
+        'always-trust' => undef,
+        'auto-key-locate' => 'keyserver',
+        'keyserver-options' => 'auto-key-retrieve'
+      );
+
+      ${cfg.extraConfig}
+
+      1;
+    '';
+    checkPhase = ''
+      ${pkgs.perl}/bin/perl -c $out
+    '';
+  };
+in {
+  options.services.rt = with types; {
+
+    enable = mkEnableOption "rt system";
+
+    package = mkOption {
+      description = "Package to use";
+      default = pkgs.rt;
+      defaultText = "pkgs.rt";
+      type = package;
+    };
+
+    baseUrl = mkOption {
+      description = "Base URL for web interface";
+      default = "https://${cfg.domain}";
+      defaultText = "https://\${cfg.domain}";
+      type = str;
+    };
+
+    commentAddress = mkOption {
+      description = "Default address from/to which comments are sent";
+      type = str;
+    };
+
+    correspondAddress = mkOption {
+      description = "Default address from/to which correspondences are sent";
+      type = str;
+    };
+
+    domain = mkOption {
+      description = "Which domain RT is running on";
+      type = str;
+    };
+
+    ownerEmail = mkOption {
+      description = "Address of a human who manages RT. RT will send errors generated by the mail gateway to this address; it will also be displayed as the contact person on the RT's login page.";
+      type = str;
+    };
+
+    port = mkOption {
+      description = "Which port rt-server should listen on";
+      type = port;
+      default = 4201;
+    };
+
+    sendmailPath = mkOption {
+      description = "Sendmail binary used to send... mail";
+      default = "${pkgs.msmtp}/bin/sendmail";
+      defaultText = "\${pkgs.msmtp}/bin/sendmail";
+      type = str;
+    };
+
+    sendmailArguments = mkOption {
+      description = "Arguments to call sendmailPath with";
+      default = [ ];
+      type = listOf (oneOf [ str path ]);
+    };
+
+    timeZone = mkOption {
+      description = "Used to convert times entered by users into GMT, as they are stored in the database, and back again; users can override this";
+      type = str;
+      default = config.time.timeZone;
+      defaultText = "[time.timeZone]";
+    };
+
+    rtName = mkOption {
+      description = "Name of this RT instance";
+      type = str;
+    };
+
+    organization = mkOption {
+      description = "Name of the organization of this instance";
+      type = str;
+    };
+
+    extraConfig = mkOption {
+      description = "Verbatim config to append to generated on";
+      type = lines;
+      default = "";
+    };
+  };
+
+  config = let
+    components = [
+      "rt-clean-sessions"
+      "rt-email-dashboards"
+      "rt-email-digest-daily"
+      "rt-email-digest-weekly"
+      "rt-externalize-attachments"
+      "rt-fulltext-indexer"
+      "rt-validator"
+    ];
+
+    mkTimer = name: {
+      "${name}" = {
+        wantedBy = [ "timers.target" ];
+        timerConfig.Unit = [ "${name}.service" ];
+      };
+    };
+
+    mkService = name: extraArgs: {
+      "${name}" = {
+        stopIfChanged = false;
+
+        serviceConfig = {
+          ExecStart = if extraArgs == ""
+            then "${cfg.package}/bin/${name}"
+            else mkForce "${cfg.package}/bin/${name} ${extraArgs}";
+          User = "rt";
+          Group = "rt";
+
+          PrivateNetwork = false;
+          MemoryDenyWriteExecute = false;
+        };
+
+        environment = {
+          RT_SITE_CONFIG = configFile;
+        };
+
+        path = with pkgs; [
+          w3m
+        ];
+      };
+    };
+  in (mkIf cfg.enable {
+    systemd.services = mkMerge ((map (c: mkService c "") components) ++ [
+      (mkService "rt-server" "--port ${toString cfg.port} --server Starman")
+      (mkService "rt-clean-sessions" "--skip-user")
+      (mkService "rt-fulltext-indexer" "--limit 500000")
+      (mkService "rt-validator" "--check")
+      {
+        rt-server = {
+          serviceConfig = {
+            StateDirectory = [ "rt/" "rt/attachments/" "rt/shredder/" "rt/smime/" ];
+            RuntimeDirectory = [ "rt/" "rt/mason_data/" ];
+            LogsDirectory = "rt/";
+          };
+
+          after = [ "postgresql.service" ];
+          wantedBy = [ "multi-user.target" ];
+        };
+      }
+      {
+        rt-externalize-attachments = {
+          serviceConfig.StateDirectory = "rt/attachments/";
+        };
+      }
+
+      { rt-email-digest-daily.serviceConfig.ExecStart = mkForce "${cfg.package}/bin/rt-email-digest -m daily"; }
+      { rt-email-digest-weekly.serviceConfig.ExecStart = mkForce "${cfg.package}/bin/rt-email-digest -m weekly"; }
+    ]);
+
+    systemd.timers = mkMerge ((map mkTimer components) ++ [
+      {
+        rt-clean-sessions.timerConfig.OnCalendar = "daily";
+        rt-email-dashboards.timerConfig.OnCalendar = "hourly";
+        rt-email-digest-daily.timerConfig.OnCalendar = "daily";
+        rt-email-digest-weekly.timerConfig.OnCalendar = "weekly";
+        rt-externalize-attachments.timerConfig.OnCalendar = "01:00";
+        rt-fulltext-indexer.timerConfig.OnCalendar = "02:00";
+        rt-validator.timerConfig.OnCalendar = "*-*-01 03:00:00";
+      }
+    ]);
+
+    users.users.rt = {
+      isSystemUser = true;
+      group = "rt";
+    };
+    users.groups.rt = {};
+
+    systemd.tmpfiles.rules = [
+      "d /var/lib/secrets/rt 0500 rt rt -"
+      "d /var/lib/rt/gpg 0700 rt rt -"
+    ];
+  });
+}

nixbld-etc-nixos/secret_permissions.txt

@@ -1,11 +1,11 @@
 -rw------- 1 root         root           backup-passphrase
 -rw------- 1 root         root           email_accounts.nix
--rw------- 1 homu         homu           homu.toml
+-rw------- 1 root         root           gitea_tokens.nix
+-rw------- 1 root         root           github_tokens.nix
 -rw-rw---- 1 gitea        gitea          mailerpassword
 -rw------- 1 matterbridge matterbridge   matterbridge.toml
 -rw------- 1 uwsgi        uwsgi          mattermost-github-integration.py
 -rw------- 1 nginx        nginx          muninpasswd
 -rw-rw---- 1 hydra        hydra          nixbld.m-labs.hk-1
--rw-rw---- 1 hydra        hydra          nix_id_rsa
--rw------- 1 root         root           rclone.conf
 -rw------- 1 root         root           wifi_password.nix
+-rw------- 1 sb           users          wifi_ext_password.nix

nixops/athena-hardware-configuration.nix

@@ -0,0 +1,45 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/89463254-b38d-45db-92b6-0f7d92a44f47";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/F84B-ACC5";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp86s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "23.11";
+}

nixops/avscan-module.nix

@@ -0,0 +1,45 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  avscan = pkgs.writeScript "avscan" ''
+    #!${pkgs.bash}/bin/bash
+
+    for user in $(cut -d":" -f1 /etc/passwd); do
+      if [ -d "/home/$user" ]; then
+          nice -15 ${pkgs.sudo}/bin/sudo -u $user ${pkgs.clamav}/bin/clamscan --recursive --quiet --infected /home/$user
+      fi
+    done
+  '';
+  cfg = config.services.avscan;
+in
+{
+  options.services.avscan = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable antivirus scan";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.clamav.updater.enable = true;
+    services.clamav.updater.interval = "daily";
+    services.clamav.updater.frequency = 1;
+
+    systemd.services.avscan = {
+      description = "Antivirus scan";
+      serviceConfig = {
+        Type = "oneshot";
+        User = "root";
+        Group = "root";
+        ExecStart = "${avscan}";
+      };
+    };
+
+    systemd.timers.avscan = {
+      description = "Antivirus scan";
+      wantedBy = [ "timers.target" ];
+      timerConfig.OnCalendar = "Mon *-*-* 13:00:00";
+    };
+  };
+}

nixops/chiron-hardware-configuration.nix

@@ -1,6 +1,3 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
 {
@@ -21,13 +18,18 @@
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/060C-8772";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices = [ ];
 
-  nix.maxJobs = lib.mkDefault 16;
+  nix.settings.max-jobs = lib.mkDefault 16;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "19.03";
 }

nixops/cnc-hardware-configuration.nix

@@ -1,29 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  imports =
-    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
-    ];
-
-  boot.initrd.availableKernelModules = [ "ata_generic" "uhci_hcd" "ehci_pci" "ahci" "usb_storage" "usbhid" "floppy" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ "kvm-intel" ];
-  boot.extraModulePackages = [ ];
-
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/35d9c50c-e479-43a9-8324-b8ded5b71844";
-      fsType = "ext4";
-    };
-
-  swapDevices =
-    [ { device = "/dev/disk/by-uuid/d8480389-c558-4c46-a58f-00207315dbdd"; }
-    ];
-
-  nix.maxJobs = lib.mkDefault 2;
-
-  boot.loader.grub.enable = true;
-  boot.loader.grub.version = 2;
-  boot.loader.grub.device = "/dev/sda";
-
-  services.xserver.videoDrivers = ["intel"];
-}

nixops/common-users.nix

@@ -1,12 +1,18 @@
 { pkgs, ... }:
 
 {
+  root = {
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBF/YybP+fQ0J+bNqM5Vgx5vDmVqVWsgUdF1moUxghv7d73GZAFaM6IFBdrXTAa33AwnWwDPMrTgP1V6SXBkb3ciJo/lD1urJGbydbSI5Ksq9d59wvOeANvyWYrQw6+eqTQ=="
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDf6+TFaUtITiiU7b6DOiT4/C8fzCq70j9DGnNyo/+5bS7ffRezTS0AqqltHQs9/lbjUbtP+Iil7RUGF0o0X6v5y/Gt/GdV9QR+Nv1mJCF1KVOeMKm/vB0jjN+ncwHU+BA=="
+    ];
+  };
   sb = {
     isNormalUser = true;
-    extraGroups = ["wheel" "plugdev" "dialout"];
+    extraGroups = ["wheel" "plugdev" "dialout" "libvirtd"];
     openssh.authorizedKeys.keys = [
-      "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyPk5WyFoWSvF4ozehxcVBoZ+UHgrI7VW/OoQfFFwIQe0qvetUZBMZwR2FwkLPAMZV8zz1v4EfncudEkVghy4P+/YVLlDjqDq9zwZnh8Nd/ifu84wmcNWHT2UcqnhjniCdshL8a44memzABnxfLLv+sXhP2x32cJAamo5y6fukr2qLp2jbXzR+3sv3klE0ruUXis/BR1lLqNJEYP8jB6fLn2sLKinnZPfn6DwVOk10mGeQsdME/eGl3phpjhODH9JW5V2V5nJBbC0rBnq+78dyArKVqjPSmIcSy72DEIpTctnMEN1W34BGrnsDd5Xd/DKxKxHKTMCHtZRwLC2X0NWN"
-      "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCMALVC8RDTHec+PC8y1s3tcpUAODgq6DEzQdHDf/cyvDMfmCaPiMxfIdmkns5lMa03hymIfSmLUF0jFFDc7biRp7uf9AAXNsrTmplHii0l0McuOOZGlSdZM4eL817P7UwJqFMxJyFXDjkubhQiX6kp25Kfuj/zLnupRCaiDvE7ho/xay6Jrv0XLz935TPDwkc7W1asLIvsZLheB+sRz9SMOb9gtrvk5WXZl5JTOFOLu+JaRwQLHL/xdcHJTOod7tqHYfpoC5JHrEwKzbhTOwxZBQBfTQjQktKENQtBxXHTe71rUEWfEZQGg60/BC4BrRmh4qJjlJu3v4VIhC7SSHn1"
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBF/YybP+fQ0J+bNqM5Vgx5vDmVqVWsgUdF1moUxghv7d73GZAFaM6IFBdrXTAa33AwnWwDPMrTgP1V6SXBkb3ciJo/lD1urJGbydbSI5Ksq9d59wvOeANvyWYrQw6+eqTQ=="
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDf6+TFaUtITiiU7b6DOiT4/C8fzCq70j9DGnNyo/+5bS7ffRezTS0AqqltHQs9/lbjUbtP+Iil7RUGF0o0X6v5y/Gt/GdV9QR+Nv1mJCF1KVOeMKm/vB0jjN+ncwHU+BA=="
     ];
   };
   rj = {
@@ -19,65 +25,105 @@
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMUaB2G1jexxfkdlly3fdWslH54/s/bOuvk9AxqpjtAY robert-jordens-ed25519"
     ];
   };
-  harry = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout" "wireshark"];
-    openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDcPNCgtdz8erFPRrAwCr4JrkeYXJUUvoRBgP0X2HlzJgDe1Inuo6sC6CGcO3IXbf4MwVA9XEp8BYPHARVeEHhufg/0wnIABLx2GcK99yxOLDUe4h/3YwtqvOcqHEsDx7w=="
-    ];
-  };
-  astro = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout" "wireshark"];
-    openssh.authorizedKeys.keys = [
-      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGJJTSJdpDh82486uPiMhhyhnci4tScp5uUe7156MBC8 a"
-    ];
-    shell = pkgs.bashInteractive;
-  };
-  pca006132 = {
+
+  guest = {
     isNormalUser = true;
     extraGroups = ["plugdev" "dialout"];
     openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBE/sPOOiw3843+rrcYV2pOVkffNc1xsOgnuCUmy1Fa2VF8x9kqmgQv61sxsuKRkKKoinvqrASxLkWVd6nkiiDuEISibEXs8r1BwuT05cS7RkEhCakSMZ6y/iqOtjt2bx+A=="
-      "ssh-rsa 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"
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBPsv4UMEFV0UHeHdA9R3sC+qoMxrqhcuFqwqWMI4AF/lixwcbRyA8QKiu/7R22m2u6pp+Zk6hYqcxdgClI4uN2oQhVjJX6wEgfT94vC/67OKJI/NNVsR8G0lr0ufCo4Lbw=="
     ];
-    shell = pkgs.zsh;
   };
   occheung = {
     isNormalUser = true;
-    extraGroups = ["plugdev" "dialout" "wireshark"];
+    extraGroups = ["plugdev" "dialout"];
     openssh.authorizedKeys.keys = [
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBPEvmWmxpFpMgp5fpjKud8ev0cyf/+X5fEpQt/YD/+u4mbvZYPE300DLqQ0h/qjgvaGMz1ndf4idYnRdy+plJEC/+hmlRW5NlcpAr3S/LYAisacgKToFVl+MlBo+emS9Ig=="
     ];
   };
-  dsleung = {
+  spaqin = {
     isNormalUser = true;
     extraGroups = ["plugdev" "dialout"];
     openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDbE7HzZKSwGbgRnzwrzCzb3gZKLSritwnEpHS4sa9oXJ5oLFkuFZOpPYDeiMlbUJ9jCk5FRmkLYIkrbz06SUr7P/eUjxu79ENi3RhfVu+ZrrPvgkhKvM/CiXvw3xCOu0w=="
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBOtmlQmIK/cEUkcwA/y9jC4AohjoEmikerpxzPhZZtOcENidN/vFum58jIcSxBvjHnILOzhfCTeLvbvGbQOFE53a7FOyEHmIzXRKS86Mg5bPHUBJxRSq9MjulGZXES3HOQ=="
+    ];
+    shell = pkgs.zsh;
+  };
+  srayman89 = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout" "libvirtd"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBMoGOV9HoFkm6S6zMfOc8ivUcGzKFxuqpmOXKQtg2nn5Kh6ByMuuAHFlvKISILBaWgXN8lPQN9VjLuXV93oG4Pe7u8EVw20IGbA6RZ4Pnnr1xQBESPbye+72taLvyQlxGA=="
     ];
   };
-  cw = {
+  esavkin = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout" "libvirtd" "wireshark"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBLDJI4GFLBmScbeR8Jh4Gi8A/2nuGlYtFTJVT+Es/bzdiPRk8DLG62T0hyRR+8LfHjbrCsDuYFNztT8hHGXd7h3xp3y2X7ArkJo8xUK5QxGd5D2Zn4ANfZTTVkoGlEHbFA=="
+    ];
+  };
+  flo = {
     isNormalUser = true;
     extraGroups = ["plugdev" "dialout"];
     openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBKsbGwnWUZpH7uyli0RR1oOCZJaVGNg/ZeIP3BIjowr2I9YSDqlbgXG3grgLAxiNL7a/RRh9naR+5ViWpoZGSt90RouUK3S6u7JR7oso7tcI50/9xro8g3ZDwCncGxkXDA=="
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBF4ZYNBYqJPQCKBYjMatFj5eGMyzh/X2TSraJEG6XBdg3jnJ3WcsOd7sm+vx+o9Y1EJ2kvwW/Vy9c3OYVU2U45njox//sKtt8Eyzszws3EYJqHQ6KAwXtW9ao4aamRtK3Q=="
     ];
   };
+  srenblad = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBLoMzO8XIkUTKUC0R05EmXn3V6gm2oMvXhh+j68G9TDBeb8x0WFkz16NPclsXdMcb2dFhtLmxUHwB5L4zWSuyYkqr0YRrtly3uwXe5Wnyz1ZAkxoq7YjQlanWSri11U8xw=="
+    ];
+  };
+  linuswck = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout" "wireshark" "libvirtd"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBAFYwmik6/xY1vb9aKBOpKklKOwSJJ0PEgNwWNULghZGJ0g4CTk04LXLSMYBm1SW74df8YMgaE/eoidq6smN6hKIgo8s3qPQGZAi4UXffMs2ciqXNa/zZcCu3PyZvyksxA=="
+    ];
+  };
+  morgan = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout" "wireshark" "libvirtd"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDXMbJEPn0mM2Bgt6eMAd+c0J5oPSvquZG+BxKdUf0qbeQldRaoB26NHMZnLte/fS00U/cqStLWDiwtEvH5WlbbawsMBymm65zbWMByebXhBDjdr6a1kkOFcKJvAL9qVBQ=="
+    ];
+  };
+  atse = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBJHMX1YDnBPQfZyGVtc93u4TIFWqnHEe6WB/eTeiOjFulitXzGfhsODZ08GzTi2+YKk7spRiPKNwRPTKFuW2PPe3Xig8b75qRMIeIVX3b7e0i6xP85eg4jdiz0LD2YGUHQ=="
+    ];
+  };
+  derppening = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBOKwN4ui94QfouYYlkI1lc3WgtjURVYLTdAizJIBnY3dNRNblAiuvTD4pQ+LEI+eOTg4SnQz1NeqH4YOQhbT5+/nZojvGTb3UVN13ZYND+Gci3DdqB2mwIYop7kMXwHgLQ=="
+    ];
+  };
+  therobs12 = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBK1tUg7TtceARRnGI80Ai5kNFolFfZ++LH9v1UoRCiJdxeQWPdNYO0Gj7+ejJvgZXwvN4yHGgcZHraEml4Mj/dKrEMFygfuYLDRmXtPFwX6TNMrWlxMhPzuNY+yCaxlqYg=="
+    ];
+  };
+  abdul = {
+    isNormalUser = true;
+    extraGroups = ["plugdev" "dialout"];
+    openssh.authorizedKeys.keys = [
+      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBONzKWn65erPM2xBCe9Dcw8dHRQCJmvzwhX72iHE1xVlAr7UcB1PMOjEB25MFfV/kCIFS5UB5wuoPvq+/oZ3EXiFjmQtsb669KN6MkZNyDqP5Y2W8gR1wVa/ZLfH4HynHg=="
+    ];
+  };
+
   dpn = {
     isNormalUser = true;
-    extraGroups = ["plugdev" "dialout" "wireshark"];
+    extraGroups = ["plugdev" "dialout"];
     openssh.authorizedKeys.keys = [
-      "ssh-rsa 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"
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBGChLocYJi8XcSJkIjT2Olm3jPGjtRq5aORa5G9F3OqmjCfvav9Q5+2Mc64XqHtNTffnJuDe4gv+lVJatC0URvPs2HyxXmxRK0jgkkLSUsV2SYLlgMqHW3jsrdh6wKBmkg=="
     ];
   };
-  tom = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout"];
-    openssh.authorizedKeys.keys = [
-      "ssh-rsa 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"
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBJ+FieYdkTS3BomeEVp7SMGD3HYDzdQHKi1WgqiFF5c3CYjFiwc/W/NrsCavEkLM9GrLKS1OKxHlG6gpsMGxiHuidoK7NDd3NhHL2jJFzH7haFktJ5DrkfRPPi4QPscZPg=="
-    ];
-  };
 }

nixops/demeter-hardware-configuration.nix

@@ -0,0 +1,46 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/c7fa9c3e-56ca-4258-a49c-3f064efbd58c";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/76A2-F01F";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp86s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "23.05";
+}

nixops/desktop.nix

@@ -2,20 +2,48 @@
 
 { config, pkgs, ... }:
 let
-  m-labs = import (fetchTarball https://nixbld.m-labs.hk/channel/custom/artiq/full/artiq-full/nixexprs.tar.xz) { inherit pkgs; };
-  pkgs-unstable = import (fetchTarball https://github.com/NixOS/nixpkgs/archive/master.tar.gz) {};
+  artiq = builtins.getFlake git+https://github.com/m-labs/artiq.git;
 in
 {
   deployment.targetHost = host;
+  deployment.hasFastConnection = true;
+  nix.nixPath = [ "nixpkgs=${pkgs.path}" ];
+  programs.command-not-found.dbPath = "${pkgs.path}/programs.sqlite";
+
+  boot.loader.systemd-boot.memtest86.enable = true;
+  boot.loader.grub.memtest86.enable = true;
+  boot.kernel.sysctl."kernel.dmesg_restrict" = false;
 
-  disabledModules = [ "security/pam.nix" ];
   imports =
     [
       (./. + "/${host}-hardware-configuration.nix")
-      ./pam_p11
+      ./avscan-module.nix
     ];
+  nixpkgs.config.packageOverrides = super: let self = super.pkgs; in {
+    libp11 = super.libp11.override({ openssl = super.openssl_1_1; });
+    pam_p11 = super.pam_p11.overrideAttrs(oa: {
+      patches = [];
+      postPatch = ''
+        substituteInPlace src/match_openssh.c --replace \
+          '"%s/.ssh/authorized_keys", pw->pw_dir)' \
+          '"/etc/ssh/authorized_keys.d/%s", pw->pw_name)'
+        '';
+    });
+    gnome = super.gnome // {
+       gnome-keyring = super.gnome.gnome-keyring.overrideAttrs(oa: {
+          configureFlags = oa.configureFlags ++ ["--disable-ssh-agent"];
+        });
+    };
+  };
+  nixpkgs.config.permittedInsecurePackages = [
+    "openssl-1.1.1w"
+  ];
+
+  boot.binfmt.emulatedSystems = [ "armv7l-linux" ];
 
   networking.hostName = host;
+  networking.firewall.allowedTCPPorts = [ 1883 ];
+  networking.firewall.allowedUDPPorts = [ 1883 ];
 
   time.timeZone = "Asia/Hong_Kong";
 
@@ -23,46 +51,63 @@ in
   # $ nix search wget
   nixpkgs.config.allowUnfree = true;
   environment.systemPackages = with pkgs; [
-    opensc yubikey-manager yubikey-manager-qt
-    wget vim gitAndTools.gitFull firefox chromium thunderbird hexchat
-    usbutils pciutils file lm_sensors audacious acpi
+    opensc yubikey-manager yubikey-manager-qt yubico-piv-tool
+    wget vim gitAndTools.gitFull sshfs
+    firefox
+    thunderbird
+    chromium
+    usbutils pciutils uhubctl file lm_sensors audacious acpi
     gimp imagemagick
-    (python3.withPackages(ps: with ps; [ numpy scipy matplotlib qtconsole regex ]))
+    (python3.withPackages(ps: with ps; [ numpy scipy matplotlib qtconsole regex jinja2 ]))
+    texlive.combined.scheme-full
     mosh psmisc libreoffice-fresh
-    gtkwave telnet unzip zip gnupg
-    gnome3.gnome-tweaks
+    inkscape
+    xournal
+    xsane
+    gtkwave unzip zip gnupg
+    gnome-tweaks
+    ghex
     jq sublime3 rink qemu_kvm
-    tmux xc3sprog m-labs.openocd screen gdb minicom picocom tigervnc
+    tmux screen gdb minicom picocom
+    artiq.packages.x86_64-linux.openocd-bscanspi
+    xc3sprog
+    gqrx
     emacs bat ripgrep
-    pkgs-unstable.xpra
-    pkgs-unstable.rust-analyzer
-    (pkgs-unstable.vscode-with-extensions.override {
-      vscodeExtensions = [
-        pkgs-unstable.vscode-extensions.matklad.rust-analyzer
-      ];
-    })
-    (import ./fish-nix-shell)
+    guake
+    vscodium
+    waypipe
+    virt-manager spice-gtk
+    kicad
+    any-nix-shell
   ];
   programs.wireshark.enable = true;
   programs.wireshark.package = pkgs.wireshark;
+  virtualisation.libvirtd.enable = true;
+  virtualisation.libvirtd.qemu.ovmf.enable = true;
+  security.wrappers.spice-client-glib-usb-acl-helper = {
+    source = "${pkgs.spice-gtk}/bin/spice-client-glib-usb-acl-helper";
+    owner = "root";
+    group = "root";
+    setuid = true;
+  };
+
+  services.avscan.enable = true;
 
   services.openssh.enable = true;
-  services.openssh.forwardX11 = true;
-  services.openssh.passwordAuthentication = false;
+  services.openssh.authorizedKeysInHomedir = false;
+  services.openssh.settings.PasswordAuthentication = false;
   services.openssh.extraConfig =
     ''
     StreamLocalBindUnlink yes
     '';
   programs.mosh.enable = true;
 
-  hardware.u2f.enable = true;
   services.pcscd.enable = true;
   programs.ssh.extraConfig =
     ''
     PKCS11Provider "${pkgs.opensc}/lib/opensc-pkcs11.so"
     '';
   programs.ssh.startAgent = true;
-  services.gnome3.gnome-keyring.enable = pkgs.lib.mkForce false;
   programs.ssh.agentPKCS11Whitelist = "${pkgs.opensc}/lib/opensc-pkcs11.so";
   security.pam.p11.enable = true;
 
@@ -82,78 +127,54 @@ in
   };
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
   };
 
-  # Enable sound.
-  sound.enable = true;
-  hardware.pulseaudio = {
-    enable = true;
-    extraModules = [ pkgs.pulseaudio-modules-bt ];
-    package = pkgs.pulseaudioFull;
-  };
+  hardware.graphics.enable32Bit = true;
 
-  i18n.inputMethod = {
-    enabled = "fcitx";
-    fcitx.engines = with pkgs.fcitx-engines; [ table-extra m17n ];
-  };
-  fonts.fonts = [ pkgs.noto-fonts pkgs.noto-fonts-cjk pkgs.noto-fonts-emoji pkgs.noto-fonts-extra pkgs.emacs-all-the-icons-fonts ];
+  fonts.packages = [ pkgs.noto-fonts pkgs.noto-fonts-cjk-sans pkgs.noto-fonts-emoji pkgs.noto-fonts-extra pkgs.emacs-all-the-icons-fonts ];
 
   # Enable the X11 windowing system.
   services.xserver.enable = true;
-  services.xserver.layout = "us";
-  services.xserver.xkbOptions = "eurosign:e";
-
-  # Enable touchpad support.
-  services.xserver.libinput.enable = true;
+  services.xserver.xkb.layout = "us";
+  services.xserver.xkb.options = "eurosign:e";
 
   services.xserver.displayManager.gdm.enable = true;
-  services.xserver.displayManager.gdm.autoSuspend = false;
-  powerManagement.enable = false;
-  services.xserver.desktopManager.gnome3.enable = true;
-  environment.gnome3.excludePackages = [ pkgs.epiphany pkgs.gnome3.geary ];
+  services.xserver.desktopManager.gnome.enable = true;
+  environment.gnome.excludePackages = [ pkgs.epiphany ];
+
+  systemd.suppressedSystemUnits = [
+      "hibernate.target"
+      "suspend.target"
+      "suspend-then-hibernate.target"
+      "sleep.target"
+      "hybrid-sleep.target"
+      "systemd-hibernate.service"
+      "systemd-hybrid-sleep.service"
+      "systemd-suspend.service"
+      "systemd-suspend-then-hibernate.service"
+  ];
 
   hardware.bluetooth.enable = true;
 
+  programs.zsh.enable = true;
   programs.fish.enable = true;
   programs.fish.promptInit = ''
-    fish-nix-shell --info-right | source
+    any-nix-shell fish --info-right | source
   '';
   users.mutableUsers = false;
   users.defaultUserShell = pkgs.fish;
   users.extraGroups.plugdev = { };
   users.extraUsers = import ./common-users.nix { inherit pkgs; };
   security.sudo.wheelNeedsPassword = false;
-  services.udev.packages = [ m-labs.openocd ];
-  services.udev.extraRules = ''
-# leaf maple
-SUBSYSTEM=="usb", ATTRS{idVendor}=="1eaf", ATTRS{idProduct}=="0003", MODE="0660", GROUP="plugdev"
-SUBSYSTEM=="usb", ATTRS{idVendor}=="1eaf", ATTRS{idProduct}=="0004", MODE="0660", GROUP="plugdev"
-# STM32 devkit
-SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374e", MODE="0660", GROUP="plugdev"
-# glasgow
-SUBSYSTEM=="usb", ATTRS{idVendor}=="20b7", ATTRS{idProduct}=="9db1", MODE="0660", GROUP="plugdev"
-# hackrf
-SUBSYSTEM=="usb", ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="6089", MODE="0660", GROUP="plugdev"
-# bladerf
-SUBSYSTEM=="usb", ATTRS{idVendor}=="2cf0", ATTRS{idProduct}=="5250", MODE="0660", GROUP="plugdev"
-# personal measurement device
-SUBSYSTEM=="usb", ATTRS{idVendor}=="09db", ATTRS{idProduct}=="007a", MODE="0660", GROUP="plugdev"
-# saleae
-SUBSYSTEM=="usb", ATTRS{idVendor}=="0925", ATTRS{idProduct}=="3881", MODE="0660", GROUP="plugdev"
-# ocean optics
-SUBSYSTEM=="usb", ATTRS{idVendor}=="2457", ATTRS{idProduct}=="1002", MODE="0660", GROUP="plugdev"
-# yubikey
-SUBSYSTEM=="usb", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0116", MODE="0660", GROUP="plugdev"
+  services.udev.packages = [ artiq.packages.x86_64-linux.openocd-bscanspi ];
+  services.udev.extraRules = (import ./extra-udev.nix);
+
+  nix.settings.trusted-public-keys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
+  nix.settings.substituters = ["https://nixbld.m-labs.hk?priority=10"];
+  nix.settings.extra-sandbox-paths = ["/opt"];
+
+  nix.extraOptions = ''
+    experimental-features = nix-command flakes impure-derivations
   '';
-
-  nix.binaryCachePublicKeys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
-  nix.binaryCaches = ["https://nixbld.m-labs.hk" "https://cache.nixos.org"];
-  nix.sandboxPaths = ["/opt"];
-
-  # This value determines the NixOS release with which your system is to be
-  # compatible, in order to avoid breaking some software such as database
-  # servers. You should change this only after NixOS release notes say you
-  # should.
-  system.stateVersion = "19.03"; # Did you read the comment?
 }

nixops/extra-udev.nix

@@ -0,0 +1,27 @@
+''
+# hackrf
+SUBSYSTEM=="usb", ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="6089", MODE="0660", GROUP="plugdev"
+# bladerf
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2cf0", ATTRS{idProduct}=="5250", MODE="0660", GROUP="plugdev"
+# personal measurement device
+SUBSYSTEM=="usb", ATTRS{idVendor}=="09db", ATTRS{idProduct}=="007a", MODE="0660", GROUP="plugdev"
+# saleae
+SUBSYSTEM=="usb", ATTRS{idVendor}=="0925", ATTRS{idProduct}=="3881", MODE="0660", GROUP="plugdev"
+# ocean optics
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2457", ATTRS{idProduct}=="1002", MODE="0660", GROUP="plugdev"
+# yubikey
+SUBSYSTEM=="usb", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0116", MODE="0660", GROUP="plugdev"
+# label printer
+SUBSYSTEM=="usb", ATTRS{idVendor}=="07cf", ATTRS{idProduct}=="4204", MODE="0660", GROUP="plugdev"
+# dfu/booster
+SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE="0660", GROUP="plugdev"
+# Renkforce USB hub with power control
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2109", ATTRS{idProduct}=="0812", MODE="0660", GROUP="plugdev"
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2109", ATTRS{idProduct}=="2812", MODE="0660", GROUP="plugdev"
+# LibreVNA
+SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="4121", MODE="0660", GROUP="plugdev"
+SUBSYSTEM=="usb", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="4121", MODE="0660", GROUP="plugdev"
+# DSLogic
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2a0e", ATTRS{idProduct}=="0020", MODE="0660", GROUP="plugdev"
+SUBSYSTEM=="usb", ATTRS{idVendor}=="2a0e", ATTRS{idProduct}=="0034", MODE="0660", GROUP="plugdev"
+''

nixops/fish-nix-shell/LICENSE

@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2018 haslersn
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

nixops/fish-nix-shell/README.md

@@ -1,50 +0,0 @@
-# fish-nix-shell
-fish support for the *nix-shell* environment of the Nix package manager.
-
-## Installation
-
-### Installation in the user environment
-
-Execute
-
-```
-nix-env -if https://github.com/haslersn/fish-nix-shell/archive/master.tar.gz
-```
-
-and add the following to your *~/.config/fish/config.fish*. Create it if it doesn't exist.
-
-```
-fish-nix-shell --info-right | source
-```
-
-### System-wide installation
-
-Add the package to your */etc/nixos/configuration.nix*:
-
-```
-  environment.systemPackages = with pkgs; [
-    #
-    # Other packages here ...
-    #
-    (import (fetchGit "https://github.com/haslersn/fish-nix-shell"))
-  ];
-```
-
-and then execute: `sudo nixos-rebuild switch`
-
-If you want to configure it system-wide, also add:
-
-```
-  programs.fish.enable = true;
-  programs.fish.promptInit = ''
-    fish-nix-shell --info-right | source
-  '';
-```
-
-## Flags
-
-The `fish-nix-shell` command **optionally** takes the following flags:
-
-| Flag | Meaning |
-| - | - |
-| `--info-right` | While in a *fish-nix-shell*, display information about the loaded packages at the right.

nixops/fish-nix-shell/bin/fish-nix-shell

@@ -1,34 +0,0 @@
-#!/bin/sh
-
-function init_fish () {
-                cat <<EOF
-
-# Overwrite the nix-shell command
-function nix-shell
-    fish-nix-shell-wrapper \$argv
-    set -gx FISH_NIX_SHELL_EXIT_STATUS \$status
-end
-EOF
-    for arg in "$@"; do
-        case "$arg" in
-            --info-right)
-                cat <<EOF
-
-# Print additional information inside a nix-shell environment
-function fish_right_prompt
-    nix-shell-info
-    set -e FISH_NIX_SHELL_EXIT_STATUS
-end
-EOF
-                ;;
-            *) exit 1;;
-        esac
-    done
-}
-
-cat <<EOF
-# If you see this output, you probably forgot to pipe this output into 'source':
-# fish-nix-shell $@ | source
-EOF
-
-init_fish "$@"

nixops/fish-nix-shell/bin/fish-nix-shell-wrapper

@@ -1,22 +0,0 @@
-#!/bin/sh
-fns () {
-    pkgs=$FISH_NIX_SHELL_PKGS
-    for arg in "$@"; do
-        if [[ $arg == -* ]]; then
-            pkg=
-            if [[ $arg == --pure ]] || [[ $arg == --command ]] || [[ $arg == --run ]]; then
-                command nix-shell $@
-                return
-            elif [[ $arg == -p ]] || [[ $arg == --packages ]]; then
-                pkg=1
-            fi
-        elif [[ $pkg == 1 ]]; then
-            pkgs+=" "$arg
-        fi
-    done
-    if [[ -n $name ]] && [[ $name != shell ]]; then
-        pkgs+=" "$name
-    fi
-    env FISH_NIX_SHELL_PKGS="$pkgs" nix-shell "$@" --command fish
-}
-fns "$@"

nixops/fish-nix-shell/bin/nix-shell-info

@@ -1,21 +0,0 @@
-#!/bin/sh
-if [[ $IN_NIX_SHELL != "" ]]; then
-    printf "\033[1;32m"
-    output=$(echo $FISH_NIX_SHELL_PKGS | xargs)
-    if [[ -n $name ]] && [[ $name != shell ]]; then
-        output+=" "$name
-    fi
-    if [[ -n $output ]]; then
-        output=$(echo $output $additional_pkgs | tr ' ' '\n' | sort -u | tr '\n' ' ' | xargs)
-        printf "$output "
-    else
-        printf "[unknown nix-shell] "
-    fi
-    printf "\033[0m"
-elif [[ $FISH_NIX_SHELL_EXIT_STATUS ]]; then
-    if [[ $FISH_NIX_SHELL_EXIT_STATUS == 0 ]]; then
-      printf "\033[1;36mexited nix-shell \033[0m"
-    else
-      printf "\033[1;31mERROR \033[0m"
-    fi
-fi

nixops/fish-nix-shell/default.nix

@@ -1,16 +0,0 @@
-with import <nixpkgs> {}; stdenv.mkDerivation rec {
-  name = "fish-nix-shell";
-  src = fetchGit "https://github.com/haslersn/fish-nix-shell";
-  nativeBuildInputs = [ makeWrapper ];
-  installPhase = ''
-    mkdir -p $out
-    cp LICENSE $out
-    cp -r bin $out
-    wrapProgram $out/bin/fish-nix-shell
-    wrapProgram $out/bin/fish-nix-shell-wrapper --prefix PATH ":" ${fish}/bin
-    wrapProgram $out/bin/nix-shell-info
-  '';
-  meta.description = "fish support for the nix-shell environment of the Nix package manager.";
-  meta.license = "MIT";
-  meta.homepage = https://github.com/haslersn/fish-nix-shell;
-}

nixops/franz-hardware-configuration.nix

@@ -0,0 +1,39 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.blacklistedKernelModules = [ "iwlwifi" ];
+  boot.extraModulePackages = [ ];
+  boot.kernelParams = ["intel_idle.max_cstate=1"];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/37e69920-a60d-4cb0-ae2f-b812f7a35dc8";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/A33B-F001";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "21.05";
+}

nixops/hera-hardware-configuration.nix

@@ -1,6 +1,3 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
 {
@@ -21,13 +18,18 @@
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/8C30-F6DC";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices = [ ];
 
-  nix.maxJobs = lib.mkDefault 16;
+  nix.settings.max-jobs = lib.mkDefault 16;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "19.03";
 }

nixops/hestia-hardware-configuration.nix

@@ -1,6 +1,3 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
 {
@@ -21,13 +18,18 @@
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/E085-5F21";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices = [ ];
 
-  nix.maxJobs = lib.mkDefault 16;
+  nix.settings.max-jobs = lib.mkDefault 16;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "19.03";
 }

nixops/juno-hardware-configuration.nix

@@ -1,30 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  imports =
-    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
-    ];
-
-  boot.initrd.availableKernelModules = [ "xhci_pci" "ehci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ "kvm-intel" ];
-  boot.extraModulePackages = [ ];
-
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/62a38d9c-452c-4648-be12-6131e95b8276";
-      fsType = "ext4";
-    };
-
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/88F6-46F2";
-      fsType = "vfat";
-    };
-
-  swapDevices = [ ];
-
-  nix.maxJobs = lib.mkDefault 8;
-  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
-
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-}

nixops/jupiter-hardware-configuration.nix

@@ -0,0 +1,43 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/315af039-6799-43ac-8999-7da69a6fbd1e";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/45B7-790E";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp86s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = true;
+  
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  
+  system.stateVersion = "24.05";
+}

nixops/light.nix

@@ -1,118 +0,0 @@
-{ host }:
-
-{ config, pkgs, ... }:
-{
-  deployment.targetHost = host;
-
-  disabledModules = [ "security/pam.nix" ];
-  imports =
-    [
-      (./. + "/${host}-hardware-configuration.nix")
-      ./pam_p11
-    ];
-
-  networking.hostName = host;
-
-  time.timeZone = "Asia/Hong_Kong";
-
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
-  documentation.enable = false;
-  nixpkgs.config.allowUnfree = true;
-  environment.systemPackages = with pkgs; [
-    opensc
-    wget vim git firefox usbutils pciutils file lm_sensors acpi
-    gimp imagemagick
-    (python3.withPackages(ps: with ps; [ numpy scipy ]))
-    psmisc
-    telnet unzip zip gnupg
-    sublime3 rink
-    tmux screen tigervnc
-    (import ./fish-nix-shell)
-  ];
-  programs.wireshark.enable = true;
-
-  services.openssh.enable = true;
-  services.openssh.forwardX11 = true;
-  services.openssh.passwordAuthentication = false;
-  services.openssh.extraConfig =
-    ''
-    StreamLocalBindUnlink yes
-    '';
-  programs.mosh.enable = true;
-
-  hardware.u2f.enable = true;
-  services.pcscd.enable = true;
-  programs.ssh.extraConfig =
-    ''
-    PKCS11Provider "${pkgs.opensc}/lib/opensc-pkcs11.so"
-    '';
-  programs.ssh.startAgent = true;
-  programs.ssh.agentPKCS11Whitelist = "${pkgs.opensc}/lib/opensc-pkcs11.so";
-  security.pam.p11.enable = true;
-
-  # Enable CUPS to print documents.
-  services.printing = {
-    enable = true;
-    extraConf =
-      ''
-      Browsing Off
-      BrowseLocalProtocols none
-      '';
-    browsedConf =
-      ''
-      BrowseRemoteProtocols none
-      BrowseProtocols none
-      '';
-  };
-  services.avahi = {
-    enable = true;
-    nssmdns = true;
-  };
-
-  # Enable sound.
-  sound.enable = true;
-  hardware.pulseaudio = {
-    enable = true;
-    extraModules = [ pkgs.pulseaudio-modules-bt ];
-    package = pkgs.pulseaudioFull;
-  };
-
-  i18n.inputMethod = {
-    enabled = "fcitx";
-    fcitx.engines = with pkgs.fcitx-engines; [ table-extra m17n ];
-  };
-  fonts.fonts = [ pkgs.noto-fonts pkgs.noto-fonts-cjk pkgs.noto-fonts-emoji pkgs.noto-fonts-extra ];
-
-  # Enable the X11 windowing system.
-  services.xserver.enable = true;
-  services.xserver.layout = "us";
-  services.xserver.xkbOptions = "eurosign:e";
-
-  # Enable touchpad support.
-  services.xserver.libinput.enable = true;
-
-  services.xserver.displayManager.lightdm.enable = true;
-  services.xserver.desktopManager.xfce.enable = true;
-
-  programs.fish.enable = true;
-  programs.fish.promptInit = ''
-    fish-nix-shell --info-right | source
-  '';
-  users.mutableUsers = false;
-  users.defaultUserShell = pkgs.fish;
-  users.extraGroups.plugdev = { };
-  users.extraUsers = import ./common-users.nix { inherit pkgs; };
-  
-  security.sudo.wheelNeedsPassword = false;
-
-  nix.binaryCachePublicKeys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
-  nix.binaryCaches = ["https://nixbld.m-labs.hk" "https://cache.nixos.org"];
-  nix.sandboxPaths = ["/opt"];
-
-  # This value determines the NixOS release with which your system is to be
-  # compatible, in order to avoid breaking some software such as database
-  # servers. You should change this only after NixOS release notes say you
-  # should.
-  system.stateVersion = "19.03"; # Did you read the comment?
-}

nixops/nixops.nix

@@ -1,15 +1,22 @@
 {
+  network.storage.legacy = {
+     databasefile = "~/.nixops/deployments.nixops";
+  };
+
   network.enableRollback = true;
 
-  rpi-1 = import ./rpi.nix { host = "rpi-1"; rpi4 = false; };
-  rpi-2 = import ./rpi.nix { host = "rpi-2"; rpi4 = false; };
-  rpi-3 = import ./rpi.nix { host = "rpi-3"; rpi4 = true; };
+  rpi-1 = import ./rpi.nix { host = "rpi-1"; rpi4 = true; };
   rpi-4 = import ./rpi.nix { host = "rpi-4"; rpi4 = true; };
-  rpi-5 = import ./rpi.nix { host = "rpi-5"; rpi4 = true; };
-  juno = import ./desktop.nix { host = "juno"; };
   zeus = import ./desktop.nix { host = "zeus"; };
   hera = import ./desktop.nix { host = "hera"; };
   hestia = import ./desktop.nix { host = "hestia"; };
   chiron = import ./desktop.nix { host = "chiron"; };
-  cnc = import ./light.nix { host = "cnc"; };
+  old-nixbld = import ./desktop.nix { host = "old-nixbld"; };
+  franz = import ./desktop.nix { host = "franz"; };
+  demeter = import ./desktop.nix { host = "demeter"; };
+  vulcan = import ./desktop.nix { host = "vulcan"; };
+  rc = import ./desktop.nix { host = "rc"; };
+  athena = import ./desktop.nix { host = "athena"; };
+  jupiter = import ./desktop.nix { host = "jupiter"; };
+  saturn = import ./desktop.nix { host = "saturn"; };
 }

nixops/old-nixbld-hardware-configuration.nix

@@ -0,0 +1,34 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
+    ];
+
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/69b15848-1cfc-4e3e-91de-1df0d2fc7a80";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/D0A3-DDAE";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.amd.updateMicrocode = true;
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  system.stateVersion = "22.05";
+}

nixops/pam_p11/default.nix

@@ -1,843 +0,0 @@
-# This module provides configuration for the PAM (Pluggable
-# Authentication Modules) system.
-
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
-  pam_p11 = pkgs.callPackage ./pam_p11.nix {};
-
-  parentConfig = config;
-
-  pamOpts = { config, name, ... }: let cfg = config; in let config = parentConfig; in {
-
-    options = {
-
-      name = mkOption {
-        example = "sshd";
-        type = types.str;
-        description = "Name of the PAM service.";
-      };
-
-      unixAuth = mkOption {
-        default = true;
-        type = types.bool;
-        description = ''
-          Whether users can log in with passwords defined in
-          <filename>/etc/shadow</filename>.
-        '';
-      };
-
-      rootOK = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If set, root doesn't need to authenticate (e.g. for the
-          <command>useradd</command> service).
-        '';
-      };
-
-      p11Auth = mkOption {
-        default = config.security.pam.p11.enable;
-        type = types.bool;
-        description = ''
-          If set, keys listed in
-          <filename>~/.ssh/authorized_keys</filename> and
-          <filename>~/.eid/authorized_certificates</filename>
-          can be used to log in with the associated PKCS#11 tokens.
-        '';
-      };
-
-      u2fAuth = mkOption {
-        default = config.security.pam.u2f.enable;
-        type = types.bool;
-        description = ''
-          If set, users listed in
-          <filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
-          <filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
-          not set) are able to log in with the associated U2F key. Path can be
-          changed using <option>security.pam.u2f.authFile</option> option.
-        '';
-      };
-
-      yubicoAuth = mkOption {
-        default = config.security.pam.yubico.enable;
-        type = types.bool;
-        description = ''
-          If set, users listed in
-          <filename>~/.yubico/authorized_yubikeys</filename>
-          are able to log in with the associated Yubikey tokens.
-        '';
-      };
-
-      googleAuthenticator = {
-        enable = mkOption {
-          default = false;
-          type = types.bool;
-          description = ''
-            If set, users with enabled Google Authenticator (created
-            <filename>~/.google_authenticator</filename>) will be required
-            to provide Google Authenticator token to log in.
-          '';
-        };
-      };
-
-      usbAuth = mkOption {
-        default = config.security.pam.usb.enable;
-        type = types.bool;
-        description = ''
-          If set, users listed in
-          <filename>/etc/pamusb.conf</filename> are able to log in
-          with the associated USB key.
-        '';
-      };
-
-      otpwAuth = mkOption {
-        default = config.security.pam.enableOTPW;
-        type = types.bool;
-        description = ''
-          If set, the OTPW system will be used (if
-          <filename>~/.otpw</filename> exists).
-        '';
-      };
-
-      googleOsLoginAccountVerification = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If set, will use the Google OS Login PAM modules
-          (<literal>pam_oslogin_login</literal>,
-          <literal>pam_oslogin_admin</literal>) to verify possible OS Login
-          users and set sudoers configuration accordingly.
-          This only makes sense to enable for the <literal>sshd</literal> PAM
-          service.
-        '';
-      };
-
-      googleOsLoginAuthentication = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If set, will use the <literal>pam_oslogin_login</literal>'s user
-          authentication methods to authenticate users using 2FA.
-          This only makes sense to enable for the <literal>sshd</literal> PAM
-          service.
-        '';
-      };
-
-      fprintAuth = mkOption {
-        default = config.services.fprintd.enable;
-        type = types.bool;
-        description = ''
-          If set, fingerprint reader will be used (if exists and
-          your fingerprints are enrolled).
-        '';
-      };
-
-      oathAuth = mkOption {
-        default = config.security.pam.oath.enable;
-        type = types.bool;
-        description = ''
-          If set, the OATH Toolkit will be used.
-        '';
-      };
-
-      sshAgentAuth = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If set, the calling user's SSH agent is used to authenticate
-          against the keys in the calling user's
-          <filename>~/.ssh/authorized_keys</filename>.  This is useful
-          for <command>sudo</command> on password-less remote systems.
-        '';
-      };
-
-      duoSecurity = {
-        enable = mkOption {
-          default = false;
-          type = types.bool;
-          description = ''
-            If set, use the Duo Security pam module
-            <literal>pam_duo</literal> for authentication.  Requires
-            configuration of <option>security.duosec</option> options.
-          '';
-        };
-      };
-
-      startSession = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If set, the service will register a new session with
-          systemd's login manager.  For local sessions, this will give
-          the user access to audio devices, CD-ROM drives.  In the
-          default PolicyKit configuration, it also allows the user to
-          reboot the system.
-        '';
-      };
-
-      setEnvironment = mkOption {
-        type = types.bool;
-        default = true;
-        description = ''
-          Whether the service should set the environment variables
-          listed in <option>environment.sessionVariables</option>
-          using <literal>pam_env.so</literal>.
-        '';
-      };
-
-      setLoginUid = mkOption {
-        type = types.bool;
-        description = ''
-          Set the login uid of the process
-          (<filename>/proc/self/loginuid</filename>) for auditing
-          purposes.  The login uid is only set by ‘entry points’ like
-          <command>login</command> and <command>sshd</command>, not by
-          commands like <command>sudo</command>.
-        '';
-      };
-
-      forwardXAuth = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Whether X authentication keys should be passed from the
-          calling user to the target user (e.g. for
-          <command>su</command>)
-        '';
-      };
-
-      pamMount = mkOption {
-        default = config.security.pam.mount.enable;
-        type = types.bool;
-        description = ''
-          Enable PAM mount (pam_mount) system to mount fileystems on user login.
-        '';
-      };
-
-      allowNullPassword = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Whether to allow logging into accounts that have no password
-          set (i.e., have an empty password field in
-          <filename>/etc/passwd</filename> or
-          <filename>/etc/group</filename>).  This does not enable
-          logging into disabled accounts (i.e., that have the password
-          field set to <literal>!</literal>).  Note that regardless of
-          what the pam_unix documentation says, accounts with hashed
-          empty passwords are always allowed to log in.
-        '';
-      };
-
-      nodelay = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Wheather the delay after typing a wrong password should be disabled.
-        '';
-      };
-
-      requireWheel = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Whether to permit root access only to members of group wheel.
-        '';
-      };
-
-      limits = mkOption {
-        description = ''
-          Attribute set describing resource limits.  Defaults to the
-          value of <option>security.pam.loginLimits</option>.
-        '';
-      };
-
-      showMotd = mkOption {
-        default = false;
-        type = types.bool;
-        description = "Whether to show the message of the day.";
-      };
-
-      makeHomeDir = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Whether to try to create home directories for users
-          with <literal>$HOME</literal>s pointing to nonexistent
-          locations on session login.
-        '';
-      };
-
-      updateWtmp = mkOption {
-        default = false;
-        type = types.bool;
-        description = "Whether to update <filename>/var/log/wtmp</filename>.";
-      };
-
-      logFailures = mkOption {
-        default = false;
-        type = types.bool;
-        description = "Whether to log authentication failures in <filename>/var/log/faillog</filename>.";
-      };
-
-      enableAppArmor = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Enable support for attaching AppArmor profiles at the
-          user/group level, e.g., as part of a role based access
-          control scheme.
-        '';
-      };
-
-      enableKwallet = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If enabled, pam_wallet will attempt to automatically unlock the
-          user's default KDE wallet upon login. If the user has no wallet named
-          "kdewallet", or the login password does not match their wallet
-          password, KDE will prompt separately after login.
-        '';
-      };
-      sssdStrictAccess = mkOption {
-        default = false;
-        type = types.bool;
-        description = "enforce sssd access control";
-      };
-
-      enableGnomeKeyring = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          If enabled, pam_gnome_keyring will attempt to automatically unlock the
-          user's default Gnome keyring upon login. If the user login password does
-          not match their keyring password, Gnome Keyring will prompt separately
-          after login.
-        '';
-      };
-
-      text = mkOption {
-        type = types.nullOr types.lines;
-        description = "Contents of the PAM service file.";
-      };
-
-    };
-
-    config = {
-      name = mkDefault name;
-      setLoginUid = mkDefault cfg.startSession;
-      limits = mkDefault config.security.pam.loginLimits;
-
-      # !!! TODO: move the LDAP stuff to the LDAP module, and the
-      # Samba stuff to the Samba module.  This requires that the PAM
-      # module provides the right hooks.
-      text = mkDefault
-        (''
-          # Account management.
-          account required pam_unix.so
-          ${optionalString use_ldap
-              "account sufficient ${pam_ldap}/lib/security/pam_ldap.so"}
-          ${optionalString (config.services.sssd.enable && cfg.sssdStrictAccess==false)
-              "account sufficient ${pkgs.sssd}/lib/security/pam_sss.so"}
-          ${optionalString (config.services.sssd.enable && cfg.sssdStrictAccess)
-              "account [default=bad success=ok user_unknown=ignore] ${pkgs.sssd}/lib/security/pam_sss.so"}
-          ${optionalString config.krb5.enable
-              "account sufficient ${pam_krb5}/lib/security/pam_krb5.so"}
-          ${optionalString cfg.googleOsLoginAccountVerification ''
-            account [success=ok ignore=ignore default=die] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so
-            account [success=ok default=ignore] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_admin.so
-          ''}
-
-          # Authentication management.
-          ${optionalString cfg.googleOsLoginAuthentication
-              "auth [success=done perm_denied=bad default=ignore] ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so"}
-          ${optionalString cfg.rootOK
-              "auth sufficient pam_rootok.so"}
-          ${optionalString cfg.requireWheel
-              "auth required pam_wheel.so use_uid"}
-          ${optionalString cfg.logFailures
-              "auth required pam_tally.so"}
-          ${optionalString (config.security.pam.enableSSHAgentAuth && cfg.sshAgentAuth)
-              "auth sufficient ${pkgs.pam_ssh_agent_auth}/libexec/pam_ssh_agent_auth.so file=~/.ssh/authorized_keys:~/.ssh/authorized_keys2:/etc/ssh/authorized_keys.d/%u"}
-          ${optionalString cfg.fprintAuth
-              "auth sufficient ${pkgs.fprintd}/lib/security/pam_fprintd.so"}
-          ${let p11 = config.security.pam.p11; in optionalString cfg.p11Auth
-              "auth ${p11.control} ${pam_p11}/lib/security/pam_p11.so ${pkgs.opensc}/lib/opensc-pkcs11.so"}
-          ${let u2f = config.security.pam.u2f; in optionalString cfg.u2fAuth
-              "auth ${u2f.control} ${pkgs.pam_u2f}/lib/security/pam_u2f.so ${optionalString u2f.debug "debug"} ${optionalString (u2f.authFile != null) "authfile=${u2f.authFile}"} ${optionalString u2f.interactive "interactive"} ${optionalString u2f.cue "cue"}"}
-          ${optionalString cfg.usbAuth
-              "auth sufficient ${pkgs.pam_usb}/lib/security/pam_usb.so"}
-          ${let oath = config.security.pam.oath; in optionalString cfg.oathAuth
-              "auth requisite ${pkgs.oathToolkit}/lib/security/pam_oath.so window=${toString oath.window} usersfile=${toString oath.usersFile} digits=${toString oath.digits}"}
-          ${let yubi = config.security.pam.yubico; in optionalString cfg.yubicoAuth
-              "auth ${yubi.control} ${pkgs.yubico-pam}/lib/security/pam_yubico.so mode=${toString yubi.mode} ${optionalString (yubi.mode == "client") "id=${toString yubi.id}"} ${optionalString yubi.debug "debug"}"}
-        '' +
-          # Modules in this block require having the password set in PAM_AUTHTOK.
-          # pam_unix is marked as 'sufficient' on NixOS which means nothing will run
-          # after it succeeds. Certain modules need to run after pam_unix
-          # prompts the user for password so we run it once with 'required' at an
-          # earlier point and it will run again with 'sufficient' further down.
-          # We use try_first_pass the second time to avoid prompting password twice
-          (optionalString (cfg.unixAuth &&
-          (config.security.pam.enableEcryptfs
-            || cfg.pamMount
-            || cfg.enableKwallet
-            || cfg.enableGnomeKeyring
-            || cfg.googleAuthenticator.enable
-            || cfg.duoSecurity.enable)) ''
-              auth required pam_unix.so ${optionalString cfg.allowNullPassword "nullok"} ${optionalString cfg.nodelay "nodelay"} likeauth
-              ${optionalString config.security.pam.enableEcryptfs
-                "auth optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so unwrap"}
-              ${optionalString cfg.pamMount
-                "auth optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
-              ${optionalString cfg.enableKwallet
-                ("auth optional ${pkgs.plasma5.kwallet-pam}/lib/security/pam_kwallet5.so" +
-                 " kwalletd=${pkgs.libsForQt5.kwallet.bin}/bin/kwalletd5")}
-              ${optionalString cfg.enableGnomeKeyring
-                "auth optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so"}
-              ${optionalString cfg.googleAuthenticator.enable
-                "auth required ${pkgs.googleAuthenticator}/lib/security/pam_google_authenticator.so no_increment_hotp"}
-              ${optionalString cfg.duoSecurity.enable
-                "auth required ${pkgs.duo-unix}/lib/security/pam_duo.so"}
-            '') + ''
-          ${optionalString cfg.unixAuth
-              "auth sufficient pam_unix.so ${optionalString cfg.allowNullPassword "nullok"} ${optionalString cfg.nodelay "nodelay"} likeauth try_first_pass"}
-          ${optionalString cfg.otpwAuth
-              "auth sufficient ${pkgs.otpw}/lib/security/pam_otpw.so"}
-          ${optionalString use_ldap
-              "auth sufficient ${pam_ldap}/lib/security/pam_ldap.so use_first_pass"}
-          ${optionalString config.services.sssd.enable
-              "auth sufficient ${pkgs.sssd}/lib/security/pam_sss.so use_first_pass"}
-          ${optionalString config.krb5.enable ''
-            auth [default=ignore success=1 service_err=reset] ${pam_krb5}/lib/security/pam_krb5.so use_first_pass
-            auth [default=die success=done] ${pam_ccreds}/lib/security/pam_ccreds.so action=validate use_first_pass
-            auth sufficient ${pam_ccreds}/lib/security/pam_ccreds.so action=store use_first_pass
-          ''}
-          auth required pam_deny.so
-
-          # Password management.
-          password sufficient pam_unix.so nullok sha512
-          ${optionalString config.security.pam.enableEcryptfs
-              "password optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
-          ${optionalString cfg.pamMount
-              "password optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
-          ${optionalString use_ldap
-              "password sufficient ${pam_ldap}/lib/security/pam_ldap.so"}
-          ${optionalString config.services.sssd.enable
-              "password sufficient ${pkgs.sssd}/lib/security/pam_sss.so use_authtok"}
-          ${optionalString config.krb5.enable
-              "password sufficient ${pam_krb5}/lib/security/pam_krb5.so use_first_pass"}
-          ${optionalString config.services.samba.syncPasswordsByPam
-              "password optional ${pkgs.samba}/lib/security/pam_smbpass.so nullok use_authtok try_first_pass"}
-          ${optionalString cfg.enableGnomeKeyring
-              "password optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so use_authtok"}
-
-          # Session management.
-          ${optionalString cfg.setEnvironment ''
-            session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
-          ''}
-          session required pam_unix.so
-          ${optionalString cfg.setLoginUid
-              "session ${
-                if config.boot.isContainer then "optional" else "required"
-              } pam_loginuid.so"}
-          ${optionalString cfg.makeHomeDir
-              "session required ${pkgs.pam}/lib/security/pam_mkhomedir.so silent skel=${config.security.pam.makeHomeDir.skelDirectory} umask=0022"}
-          ${optionalString cfg.updateWtmp
-              "session required ${pkgs.pam}/lib/security/pam_lastlog.so silent"}
-          ${optionalString config.security.pam.enableEcryptfs
-              "session optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
-          ${optionalString use_ldap
-              "session optional ${pam_ldap}/lib/security/pam_ldap.so"}
-          ${optionalString config.services.sssd.enable
-              "session optional ${pkgs.sssd}/lib/security/pam_sss.so"}
-          ${optionalString config.krb5.enable
-              "session optional ${pam_krb5}/lib/security/pam_krb5.so"}
-          ${optionalString cfg.otpwAuth
-              "session optional ${pkgs.otpw}/lib/security/pam_otpw.so"}
-          ${optionalString cfg.startSession
-              "session optional ${pkgs.systemd}/lib/security/pam_systemd.so"}
-          ${optionalString cfg.forwardXAuth
-              "session optional pam_xauth.so xauthpath=${pkgs.xorg.xauth}/bin/xauth systemuser=99"}
-          ${optionalString (cfg.limits != [])
-              "session required ${pkgs.pam}/lib/security/pam_limits.so conf=${makeLimitsConf cfg.limits}"}
-          ${optionalString (cfg.showMotd && config.users.motd != null)
-              "session optional ${pkgs.pam}/lib/security/pam_motd.so motd=${motd}"}
-          ${optionalString cfg.pamMount
-              "session optional ${pkgs.pam_mount}/lib/security/pam_mount.so"}
-          ${optionalString (cfg.enableAppArmor && config.security.apparmor.enable)
-              "session optional ${pkgs.apparmor-pam}/lib/security/pam_apparmor.so order=user,group,default debug"}
-          ${optionalString (cfg.enableKwallet)
-              ("session optional ${pkgs.plasma5.kwallet-pam}/lib/security/pam_kwallet5.so" +
-               " kwalletd=${pkgs.libsForQt5.kwallet.bin}/bin/kwalletd5")}
-          ${optionalString (cfg.enableGnomeKeyring)
-              "session optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so auto_start"}
-          ${optionalString (config.virtualisation.lxc.lxcfs.enable)
-               "session optional ${pkgs.lxc}/lib/security/pam_cgfs.so -c all"}
-        '');
-    };
-
-  };
-
-
-  inherit (pkgs) pam_krb5 pam_ccreds;
-
-  use_ldap = (config.users.ldap.enable && config.users.ldap.loginPam);
-  pam_ldap = if config.users.ldap.daemon.enable then pkgs.nss_pam_ldapd else pkgs.pam_ldap;
-
-  # Create a limits.conf(5) file.
-  makeLimitsConf = limits:
-    pkgs.writeText "limits.conf"
-       (concatMapStrings ({ domain, type, item, value }:
-         "${domain} ${type} ${item} ${toString value}\n")
-         limits);
-
-  motd = pkgs.writeText "motd" config.users.motd;
-
-  makePAMService = name: service:
-    { name = "pam.d/${name}";
-      value.source = pkgs.writeText "${name}.pam" service.text;
-    };
-
-in
-
-{
-
-  imports = [
-    (mkRenamedOptionModule [ "security" "pam" "enableU2F" ] [ "security" "pam" "u2f" "enable" ])
-  ];
-
-  ###### interface
-
-  options = {
-
-    security.pam.loginLimits = mkOption {
-      default = [];
-      example =
-        [ { domain = "ftp";
-            type   = "hard";
-            item   = "nproc";
-            value  = "0";
-          }
-          { domain = "@student";
-            type   = "-";
-            item   = "maxlogins";
-            value  = "4";
-          }
-       ];
-
-     description =
-       '' Define resource limits that should apply to users or groups.
-          Each item in the list should be an attribute set with a
-          <varname>domain</varname>, <varname>type</varname>,
-          <varname>item</varname>, and <varname>value</varname>
-          attribute.  The syntax and semantics of these attributes
-          must be that described in the limits.conf(5) man page.
-
-          Note that these limits do not apply to systemd services,
-          whose limits can be changed via <option>systemd.extraConfig</option>
-          instead.
-       '';
-    };
-
-    security.pam.services = mkOption {
-      default = [];
-      type = with types; loaOf (submodule pamOpts);
-      description =
-        ''
-          This option defines the PAM services.  A service typically
-          corresponds to a program that uses PAM,
-          e.g. <command>login</command> or <command>passwd</command>.
-          Each attribute of this set defines a PAM service, with the attribute name
-          defining the name of the service.
-        '';
-    };
-
-    security.pam.makeHomeDir.skelDirectory = mkOption {
-      type = types.str;
-      default = "/var/empty";
-      example =  "/etc/skel";
-      description = ''
-        Path to skeleton directory whose contents are copied to home
-        directories newly created by <literal>pam_mkhomedir</literal>.
-      '';
-    };
-
-    security.pam.enableSSHAgentAuth = mkOption {
-      type = types.bool;
-      default = false;
-      description =
-        ''
-          Enable sudo logins if the user's SSH agent provides a key
-          present in <filename>~/.ssh/authorized_keys</filename>.
-          This allows machines to exclusively use SSH keys instead of
-          passwords.
-        '';
-    };
-
-    security.pam.enableOTPW = mkEnableOption "the OTPW (one-time password) PAM module";
-
-    security.pam.p11 = {
-      enable = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Enables P11 PAM (<literal>pam_p11</literal>) module.
-
-          If set, users can log in with SSH keys and PKCS#11 tokens.
-
-          More information can be found <link
-          xlink:href="https://github.com/OpenSC/pam_p11">here</link>.
-        '';
-      };
-
-      control = mkOption {
-        default = "sufficient";
-        type = types.enum [ "required" "requisite" "sufficient" "optional" ];
-        description = ''
-          This option sets pam "control".
-          If you want to have multi factor authentication, use "required".
-          If you want to use the PKCS#11 device instead of the regular password,
-          use "sufficient".
-
-          Read
-          <citerefentry>
-            <refentrytitle>pam.conf</refentrytitle>
-            <manvolnum>5</manvolnum>
-          </citerefentry>
-          for better understanding of this option.
-        '';
-      };
-    };
-
-    security.pam.u2f = {
-      enable = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Enables U2F PAM (<literal>pam-u2f</literal>) module.
-
-          If set, users listed in
-          <filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
-          <filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
-          not set) are able to log in with the associated U2F key. The path can
-          be changed using <option>security.pam.u2f.authFile</option> option.
-
-          File format is:
-          <literal>username:first_keyHandle,first_public_key: second_keyHandle,second_public_key</literal>
-          This file can be generated using <command>pamu2fcfg</command> command.
-
-          More information can be found <link
-          xlink:href="https://developers.yubico.com/pam-u2f/">here</link>.
-        '';
-      };
-
-      authFile = mkOption {
-        default = null;
-        type = with types; nullOr path;
-        description = ''
-          By default <literal>pam-u2f</literal> module reads the keys from
-          <filename>$XDG_CONFIG_HOME/Yubico/u2f_keys</filename> (or
-          <filename>$HOME/.config/Yubico/u2f_keys</filename> if XDG variable is
-          not set).
-
-          If you want to change auth file locations or centralize database (for
-          example use <filename>/etc/u2f-mappings</filename>) you can set this
-          option.
-
-          File format is:
-          <literal>username:first_keyHandle,first_public_key: second_keyHandle,second_public_key</literal>
-          This file can be generated using <command>pamu2fcfg</command> command.
-
-          More information can be found <link
-          xlink:href="https://developers.yubico.com/pam-u2f/">here</link>.
-        '';
-      };
-
-      control = mkOption {
-        default = "sufficient";
-        type = types.enum [ "required" "requisite" "sufficient" "optional" ];
-        description = ''
-          This option sets pam "control".
-          If you want to have multi factor authentication, use "required".
-          If you want to use U2F device instead of regular password, use "sufficient".
-
-          Read
-          <citerefentry>
-            <refentrytitle>pam.conf</refentrytitle>
-            <manvolnum>5</manvolnum>
-          </citerefentry>
-          for better understanding of this option.
-        '';
-      };
-
-      debug = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Debug output to stderr.
-        '';
-      };
-
-      interactive = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Set to prompt a message and wait before testing the presence of a U2F device.
-          Recommended if your device doesn’t have a tactile trigger.
-        '';
-      };
-
-      cue = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          By default <literal>pam-u2f</literal> module does not inform user
-          that he needs to use the u2f device, it just waits without a prompt.
-
-          If you set this option to <literal>true</literal>,
-          <literal>cue</literal> option is added to <literal>pam-u2f</literal>
-          module and reminder message will be displayed.
-        '';
-      };
-    };
-
-    security.pam.yubico = {
-      enable = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Enables Yubico PAM (<literal>yubico-pam</literal>) module.
-
-          If set, users listed in
-          <filename>~/.yubico/authorized_yubikeys</filename>
-          are able to log in with the associated Yubikey tokens.
-
-          The file must have only one line:
-          <literal>username:yubikey_token_id1:yubikey_token_id2</literal>
-          More information can be found <link
-          xlink:href="https://developers.yubico.com/yubico-pam/">here</link>.
-        '';
-      };
-      control = mkOption {
-        default = "sufficient";
-        type = types.enum [ "required" "requisite" "sufficient" "optional" ];
-        description = ''
-          This option sets pam "control".
-          If you want to have multi factor authentication, use "required".
-          If you want to use Yubikey instead of regular password, use "sufficient".
-
-          Read
-          <citerefentry>
-            <refentrytitle>pam.conf</refentrytitle>
-            <manvolnum>5</manvolnum>
-          </citerefentry>
-          for better understanding of this option.
-        '';
-      };
-      id = mkOption {
-        example = "42";
-        type = types.str;
-        description = "client id";
-      };
-
-      debug = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Debug output to stderr.
-        '';
-      };
-      mode = mkOption {
-        default = "client";
-        type = types.enum [ "client" "challenge-response" ];
-        description = ''
-          Mode of operation.
-
-          Use "client" for online validation with a YubiKey validation service such as
-          the YubiCloud.
-
-          Use "challenge-response" for offline validation using YubiKeys with HMAC-SHA-1
-          Challenge-Response configurations. See the man-page ykpamcfg(1) for further
-          details on how to configure offline Challenge-Response validation.
-
-          More information can be found <link
-          xlink:href="https://developers.yubico.com/yubico-pam/Authentication_Using_Challenge-Response.html">here</link>.
-        '';
-      };
-    };
-
-    security.pam.enableEcryptfs = mkEnableOption "eCryptfs PAM module (mounting ecryptfs home directory on login)";
-
-    users.motd = mkOption {
-      default = null;
-      example = "Today is Sweetmorn, the 4th day of The Aftermath in the YOLD 3178.";
-      type = types.nullOr types.lines;
-      description = "Message of the day shown to users when they log in.";
-    };
-
-  };
-
-
-  ###### implementation
-
-  config = {
-
-    environment.systemPackages =
-      # Include the PAM modules in the system path mostly for the manpages.
-      [ pkgs.pam ]
-      ++ optional config.users.ldap.enable pam_ldap
-      ++ optional config.services.sssd.enable pkgs.sssd
-      ++ optionals config.krb5.enable [pam_krb5 pam_ccreds]
-      ++ optionals config.security.pam.enableOTPW [ pkgs.otpw ]
-      ++ optionals config.security.pam.oath.enable [ pkgs.oathToolkit ]
-      ++ optionals config.security.pam.p11.enable [ pam_p11 ]
-      ++ optionals config.security.pam.u2f.enable [ pkgs.pam_u2f ];
-
-    boot.supportedFilesystems = optionals config.security.pam.enableEcryptfs [ "ecryptfs" ];
-
-    security.wrappers = {
-      unix_chkpwd = {
-        source = "${pkgs.pam}/sbin/unix_chkpwd.orig";
-        owner = "root";
-        setuid = true;
-      };
-    };
-
-    environment.etc = mapAttrs' makePAMService config.security.pam.services;
-
-    security.pam.services =
-      { other.text =
-          ''
-            auth     required pam_warn.so
-            auth     required pam_deny.so
-            account  required pam_warn.so
-            account  required pam_deny.so
-            password required pam_warn.so
-            password required pam_deny.so
-            session  required pam_warn.so
-            session  required pam_deny.so
-          '';
-
-        # Most of these should be moved to specific modules.
-        i3lock = {};
-        i3lock-color = {};
-        vlock = {};
-        xlock = {};
-        xscreensaver = {};
-
-        runuser = { rootOK = true; unixAuth = false; setEnvironment = false; };
-
-        /* FIXME: should runuser -l start a systemd session? Currently
-           it complains "Cannot create session: Already running in a
-           session". */
-        runuser-l = { rootOK = true; unixAuth = false; };
-      };
-
-  };
-
-}

nixops/pam_p11/pam_p11.nix

@@ -1,23 +0,0 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, pkg-config, openssl, libp11, pam }:
-
-stdenv.mkDerivation rec {
-  pname = "pam_p11";
-  version = "0.3.1";
-
-  src = fetchFromGitHub {
-    owner = "OpenSC";
-    repo = "pam_p11";
-    rev = "pam_p11-${version}";
-    sha256 = "1caidy18rq5zk82d51x8vwidmkhwmanf3qm25x1yrdlbhxv6m7lk";
-  };
-
-  patchPhase =
-    ''
-    substituteInPlace src/match_openssh.c --replace \
-      '"%s/.ssh/authorized_keys", pw->pw_dir)' \
-      '"/etc/ssh/authorized_keys.d/%s", pw->pw_name)'
-    '';
-
-  nativeBuildInputs = [ autoreconfHook pkg-config ];
-  buildInputs = [ pam openssl libp11 ];
-}

nixops/rc-hardware-configuration.nix

@@ -0,0 +1,50 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "sd_mod" "rtsx_usb_sdmmc" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/348c924c-1d86-44ff-84af-2594f414e7d0";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/1BDC-44BB";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  fileSystems."/opt" =
+    { device = "/dev/disk/by-uuid/cf0f51b6-7b95-4c74-9390-37dc4c86f32b";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp1s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp2s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "23.11";
+}

nixops/rpi.nix

@@ -1,32 +1,23 @@
-{ host, rpi4 }:
+{ host, rpi4, experimental-users ? false }:
 
 { config, pkgs, ... }:
 let
-  m-labs = import (fetchTarball https://nixbld.m-labs.hk/channel/custom/artiq/full/artiq-full/nixexprs.tar.xz) { inherit pkgs; };
+  artiq = builtins.getFlake git+https://github.com/m-labs/artiq.git;
 in
 {
   deployment.targetHost = host;
+  deployment.hasFastConnection = true;
+  nix.nixPath = [ "nixpkgs=${pkgs.path}" ];
+  programs.command-not-found.dbPath = "${pkgs.path}/programs.sqlite";
   nixpkgs.system = "aarch64-linux";
 
   boot.loader.grub.enable = false;
+  boot.loader.generic-extlinux-compatible.enable = true;
+  boot.kernelParams = if rpi4 then ["cma=64M"] else []; # work around https://github.com/raspberrypi/linux/issues/3208
+  boot.initrd.includeDefaultModules = false;
+  boot.kernel.sysctl."kernel.dmesg_restrict" = false;
 
-  boot.loader.generic-extlinux-compatible.enable = !rpi4;
-  boot.loader.raspberryPi = pkgs.lib.mkIf rpi4 {
-    enable = true;
-    version = 4;
-  };
-  boot.kernelPackages = pkgs.lib.mkIf rpi4 pkgs.linuxPackages_latest;
-
-  fileSystems = if rpi4 then {
-    "/boot" = {
-      device = "/dev/disk/by-label/FIRMWARE";
-      fsType = "vfat";
-    };
-    "/" = {
-      device = "/dev/disk/by-label/NIXOS_SD";
-      fsType = "ext4";
-    };
-  } else {
+  fileSystems = {
     "/" = {
       device = "/dev/disk/by-label/NIXOS_SD";
       fsType = "ext4";
@@ -34,7 +25,9 @@ in
   };
 
   services.openssh.enable = true;
-  services.openssh.passwordAuthentication = false;
+  services.openssh.authorizedKeysInHomedir = false;
+  services.openssh.settings.PasswordAuthentication = false;
+  services.openssh.settings.GatewayPorts = "clientspecified";
   services.openssh.extraConfig =
     ''
     StreamLocalBindUnlink yes
@@ -42,27 +35,41 @@ in
   programs.mosh.enable = true;
 
   networking.hostName = host;
+
   time.timeZone = "Asia/Hong_Kong";
 
   users.extraGroups.plugdev = { };
   users.mutableUsers = false;
   users.defaultUserShell = pkgs.fish;
   users.extraUsers = (import ./common-users.nix { inherit pkgs; }) // {
-    nix = {
+    nixbld = {
       isNormalUser = true;
+      extraGroups = ["plugdev" "dialout"];
+      openssh.authorizedKeys.keys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGJGICdNM9mHHAa1Cxk9Wz3YLkIEeqrIQGxM0aoy1g5O"
+      ];
     };
   };
   security.sudo.wheelNeedsPassword = false;
-  services.udev.packages = [ m-labs.openocd ];
+  services.udev.packages = [ artiq.packages.aarch64-linux.openocd-bscanspi ];
+  services.udev.extraRules = (import ./extra-udev.nix);
 
   documentation.enable = false;
   environment.systemPackages = with pkgs; [
-    psmisc wget vim git usbutils lm_sensors file telnet mosh tmux xc3sprog m-labs.openocd screen gdb minicom picocom
+    psmisc wget vim git sshfs usbutils uhubctl lm_sensors file mosh tmux
+    artiq.packages.aarch64-linux.openocd-bscanspi
+    xc3sprog
+    screen gdb minicom picocom
   ];
+  programs.zsh.enable = true;
   programs.fish.enable = true;
   programs.wireshark.enable = true;
 
-  nix.binaryCachePublicKeys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
-  nix.binaryCaches = ["https://cache.nixos.org" "https://nixbld.m-labs.hk"];
-  nix.trustedUsers = ["root" "nix"];
+  nix.settings.trusted-public-keys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
+  nix.settings.substituters = ["https://nixbld.m-labs.hk?priority=10"];
+  nix.settings.trusted-users = ["root" "sb"];
+
+  nix.extraOptions = ''
+    experimental-features = nix-command flakes impure-derivations
+  '';
 }

nixops/saturn-hardware-configuration.nix

@@ -0,0 +1,43 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/51d521ec-4807-4b71-8a89-116b89f72d2e";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/877D-AF6A";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp86s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = true;
+  
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  
+  system.stateVersion = "24.05";
+}

nixops/vulcan-hardware-configuration.nix

@@ -0,0 +1,41 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/67168ae0-6448-4b40-b278-406290224b4f";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/8F4B-AD84";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.eno1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+  
+  system.stateVersion = "23.05";
+}

nixops/zeus-hardware-configuration.nix

@@ -1,6 +1,3 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
 {
@@ -21,13 +18,18 @@
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/91B4-E546";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices = [ ];
 
-  nix.maxJobs = lib.mkDefault 16;
+  nix.settings.max-jobs = lib.mkDefault 16;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  system.stateVersion = "19.03";
 }

remote-ipsec.txt

@@ -0,0 +1,49 @@
+connections {
+  bypass-ipsec {
+    remote_addrs = 127.0.0.1
+    children {
+      bypass-isakmp-v4 {
+        local_ts = 0.0.0.0/0[udp/isakmp]
+        remote_ts = 0.0.0.0/0[udp/isakmp]
+        mode = pass
+        start_action = trap
+      }
+      bypass-isakmp-v6 {
+        local_ts = ::/0[udp/isakmp]
+        remote_ts = ::/0[udp/isakmp]
+        mode = pass
+        start_action = trap
+      }
+    }
+  }
+  m_labs {
+    version = 2
+    encap = no
+    mobike = no
+    send_certreq = no
+    proposals = aes128gcm128-sha256-prfsha256-curve25519,aes128gcm128-sha256-prfsha256-ecp256
+    local_addrs = 103.206.98.1
+    remote_addrs = 94.190.212.123
+    local {
+      auth = pubkey
+      id = fqdn:igw0.hkg.as150788.net
+      pubkeys = igw0.hkg.as150788.net
+    }
+    remote {
+      auth = pubkey
+      id = fqdn:m-labs.hk
+      pubkeys = m-labs.hk
+    }
+    children {
+      con1 {
+        mode = transport
+        ah_proposals = sha256-curve25519,sha256-ecp256
+        esp_proposals =
+        local_ts = 103.206.98.1[gre]
+        remote_ts = 94.190.212.123[gre]
+        start_action = none
+        close_action = none
+      }
+    }
+  }
+}