{
  description = "Additional packages for ARTIQ";

  inputs.artiqpkgs.url = git+https://github.com/m-labs/artiq.git;

  inputs.daxpkgs = {
    url = git+https://gitlab.com/duke-artiq/dax.git;
    inputs = {
      artiqpkgs.follows = "artiqpkgs";
      nixpkgs.follows = "artiqpkgs/nixpkgs";
      sipyco.follows = "artiqpkgs/sipyco";
    };
  };

  outputs = { self, artiqpkgs, daxpkgs }:
    let
      pkgs = import artiqpkgs.inputs.nixpkgs { system = "x86_64-linux"; };
      msys2 = import ./msys2 { inherit pkgs; };

      condaDeps = with pkgs; [ zlib xorg.libSM xorg.libICE xorg.libX11 xorg.libXau xorg.libXi xorg.libXrender libselinux libGL ];
      # Use the full Anaconda distribution, which already contains conda-build and its many dependencies.
      condaInstaller = pkgs.fetchurl {
        url = "https://repo.anaconda.com/archive/Anaconda3-2023.03-Linux-x86_64.sh";
        sha256 = "sha256-GXN9XCeyOh2HQMXLJBS/YlMYTOdF0KkSuyNaISoV4HU=";
      };
      condaInstallerEnv = pkgs.buildFHSUserEnv {
        name = "conda-installer-env";
        targetPkgs = pkgs: condaDeps;
      };
      condaInstalled = pkgs.stdenvNoCC.mkDerivation {
        name = "conda-installed";
        src = condaInstaller;
        buildInputs = [ condaInstallerEnv ];
        phases = [ "buildPhase" "installPhase" ];
        buildPhase =
          ''
          cp $src conda-installer.sh
          chmod +x conda-installer.sh
          # keep the same file length to avoid breaking embedded payload offsets
          sed -i 0,/unset\ LD_LIBRARY_PATH/s//\#nset\ LD_LIBRARY_PATH/ conda-installer.sh
          '';
        installPhase =
          ''
          conda-installer-env -c "./conda-installer.sh -p $out -b"
          substituteInPlace $out/lib/python3.10/site-packages/conda/gateways/disk/__init__.py \
            --replace "os.chmod(path, 0o2775)" "pass"
          '';
      };
      condaBuilderEnv = pkgs.buildFHSUserEnv {
        name = "conda-builder-env";
        targetPkgs = pkgs: condaDeps ++ [ condaInstalled ];
      };
      makeCondaRecipe = (constituent:
        ''
        # conda build breaks if write permissions aren't set on source files.
        cp --no-preserve=mode,ownership -R ${constituent.src} workaround-conda
        cd workaround-conda
        tar cf ../${constituent.name}.tar .
        cd ..
        rm -rf workaround-conda

        mkdir -p conda/${constituent.name}

        cat << EOF > conda/${constituent.name}/meta.yaml
        package:
          name: ${constituent.name}
          version: ${constituent.version}

        source:
          url: ../../${constituent.name}.tar

        {% set data = load_setup_py_data() %}

        build:
          noarch: python
          entry_points:
            # NOTE: conda-build cannot distinguish between console and gui scripts
            {% for entry_point_type, entry_points in data.get("entry_points", dict()).items() -%}
            {% for entry_point in entry_points -%}
            - {{ entry_point }}
            {% endfor %}
            {% endfor %}
          ignore_prefix_files: True

        requirements:
          run:
        ${pkgs.lib.concatStringsSep "\n" (map (s: "    - ${s}") constituent.dependencies)}
        EOF

        cat << EOF > conda/${constituent.name}/build.sh
        #!/bin/bash
        set -e
        ${constituent.preSetup or ""}
        python setup.py install \
          --prefix=\$PREFIX \
          --single-version-externally-managed \
          --record=record.txt \
          --no-compile
        EOF
        chmod 755 conda/${constituent.name}/build.sh
        ''
      );
      makeCondaChannel = constituents: pkgs.stdenvNoCC.mkDerivation {
        name = "conda-channel";
        buildInputs = [ condaBuilderEnv ];
        phases = [ "buildPhase" "installPhase" ];
        buildPhase = pkgs.lib.concatStringsSep "\n" (map makeCondaRecipe constituents);
        installPhase =
          ''
          HOME=`pwd`
          mkdir $out
          conda-builder-env -c "
            ${pkgs.lib.concatStringsSep "\n"
              (map (constituent: "conda build --no-anaconda-upload --no-test --output-folder $out conda/${constituent.name}") constituents)}
          "

          mkdir $out/nix-support
          for package in $out/*/*.tar.bz2; do
            echo file conda $package >> $out/nix-support/hydra-build-products
          done
          '';
      };
      
    in rec {
      inherit pkgs;
      inherit makeCondaChannel;
      inherit (msys2) makeMsys2Package makeMsys2Repos;
      packages.x86_64-linux = rec {
        inherit (artiqpkgs.packages.x86_64-linux) artiq openocd-bscanspi;
        korad_ka3005p = pkgs.python3Packages.buildPythonPackage {
          pname = "korad_ka3005p";
          version = "1.1";
          src = pkgs.fetchFromGitHub {
            owner = "m-labs";
            repo = "korad_ka3005p";
            rev = "a1898409cb188b388ed1cf84e76ca69e9c8a74eb";
            sha256 = "0h20qss70nssqiagc2fx75mravq1pji7rizhag3nq8xrcz2w20nc";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco artiqpkgs.packages.x86_64-linux.asyncserial ];
        };
        novatech409b = pkgs.python3Packages.buildPythonPackage {
          pname = "novatech409b";
          version = "1.1";
          src = pkgs.fetchFromGitHub {
            owner = "m-labs";
            repo = "novatech409b";
            rev = "3bd559753972f07d881df66b7c6819afc5436053";
            sha256 = "1g9qv6fn5h7d393mb1v7w8sg6fimqg34blqdj22qnayb4agw1wyg";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco artiqpkgs.packages.x86_64-linux.asyncserial ];
        };
        lda = pkgs.python3Packages.buildPythonPackage {
          name = "lda";
          version = "1.1";
          src = pkgs.fetchFromGitHub {
            owner = "m-labs";
            repo = "lda";
            rev = "2d8af1e9080a4c1ab4a32370b3f926bfba8c00b2";
            sha256 = "sha256-bImAsQiGmMauasltUrlkCRU3+p40d41DTlJvOjCfrP0=";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco ];
          postPatch = ''
            substituteInPlace lda/hidapi.py \
            --replace "hidapi_lib_path = None"\
                      "hidapi_lib_path = '${pkgs.hidapi}/lib/libhidapi-libusb.so.0'"
          '';
        };
        thorlabs_tcube = pkgs.python3Packages.buildPythonPackage {
          pname = "thorlabs_tcube";
          version = "1.1";
          src = pkgs.fetchFromGitHub {
            owner = "m-labs";
            repo = "thorlabs_tcube";
            rev = "0cb0c15fc7e660a150e193245f5338d48f8b97db";
            sha256 = "1n4zmjcj2kpd97217y602pq6x8s80w39fgyi6qjmal92aicqdg07";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco artiqpkgs.packages.x86_64-linux.asyncserial ];
        };
        newfocus8742 = pkgs.python3Packages.buildPythonPackage {
          pname = "newfocus8742";
          version = "0.2";
          src = pkgs.fetchFromGitHub {
            owner = "quartiq";
            repo = "newfocus8742";
            rev = "9f6092b724b33b934aa4d3a1d6a20c295cd1d02d";
            sha256 = "0qf05ghylnqf3l5vjx5dc748wi84xn6p6lb6f9r8p6f1z7z67fb8";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco pkgs.python3Packages.pyusb ];
          # no unit tests so do a simple smoke test
          checkPhase = "python -m newfocus8742.aqctl_newfocus8742 -h";
        };
        hut2 = pkgs.python3Packages.buildPythonPackage {
          pname = "hut2";
          version = "0.2";
          src = pkgs.fetchFromGitHub {
            owner = "quartiq";
            repo = "hut2";
            rev = "68369d5d63d233827840a9a752d90454a4e03baa";
            sha256 = "0r832c0icz8v3w27ci13024bqfslj1gx6dwhjv11ksw229xdcghd";
          };
          propagatedBuildInputs = [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco ];
          # no unit tests without hardware so do a simple smoke test
          checkPhase = "python -m hut2.aqctl_hut2 -h";
        };
        wand = pkgs.python3Packages.buildPythonPackage {
          pname = "wand";
          version = "0.4.dev";
          src = pkgs.fetchFromGitHub {
            owner = "OxfordIonTrapGroup";
            repo = "wand";
            rev = "c080ddab6b2d94bb673ed32a0cea2bf68e66c702";
            sha256 = "sha256-T27/mZepPrnheoVEKsP5cRDFc1JffTnuPvXq2r2GP4E=";
          };
          nativeBuildInputs = [ pkgs.qt5.wrapQtAppsHook ];
          dontWrapQtApps = true;
          postFixup = ''
            wrapQtApp "$out/bin/wand_gui"
          '';
          propagatedBuildInputs = [ artiqpkgs.packages.x86_64-linux.artiq artiqpkgs.packages.x86_64-linux.qasync ]
            ++ [ artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco ]
            ++ (with pkgs.python3Packages; [ numpy scipy influxdb pyqtgraph setuptools ]);
        };
        flake8-artiq = daxpkgs.packages.x86_64-linux.flake8-artiq;
        dax = daxpkgs.packages.x86_64-linux.dax.overridePythonAttrs (oa: { doCheck = false; });
        trap-dac-utils = daxpkgs.packages.x86_64-linux.trap-dac-utils;
        dax-applets = pkgs.python3Packages.buildPythonPackage rec {
          pname = "dax-applets";
          version = "0.0.0";
          src = pkgs.fetchgit {
            url = "https://gitlab.com/duke-artiq/dax-applets.git";
            rev = "0f0196b6941b0c44a33c85d8c02047ca65466463";
            sha256 = "0mx6yjvprhdnkdigwns8mg6v5daqxpgbv7mf63fa76i1iv2wvak4";
          };
          propagatedBuildInputs = [ artiqpkgs.packages.x86_64-linux.artiq ]
            ++ (with pkgs.python3Packages; [ numpy pyqt5 pyqtgraph ]);
          doCheck = false;
        };
        linien-client = pkgs.python3Packages.buildPythonPackage rec {
          pname = "linien-client";
          version = "0.5.3";
          src = pkgs.fetchFromGitHub {
            owner = "linien-org";
            repo = "linien";
            rev = "v${version}";
            sha256 = "sha256-VOT/mw4o9dbkrtMxL0Ar5UcnxsZ7CYcoTj+VVrWADR4=";
          };
          propagatedBuildInputs = (with pkgs.python3Packages; [ numpy paramiko plumbum rpyc scipy ]);
          doCheck = false;  # tests ask for pyqt, migen, etc.
          patchPhase = 
            ''
            echo ${version} > linien/VERSION
            substituteInPlace setup_client.py --replace "\"uuid>=1.30\"," ""
            substituteInPlace setup_client.py --replace "rpyc>=4.0,<5.0" "rpyc>=4.0"
            ln -s setup_client.py setup.py
            '';
        };
        linien-gui-internal = pkgs.python3Packages.buildPythonPackage rec {
          pname = "linien-gui-internal";
          inherit (linien-client) version src;
          propagatedBuildInputs = (with pkgs.python3Packages; [ click numpy paramiko plumbum pyqtgraph pyqt5 rpyc scipy superqt appdirs ]) ++ [ linien-client ];
          doCheck = false;
          patchPhase =
            ''
            echo ${version} > linien/VERSION
            substituteInPlace setup_gui.py --replace "rpyc>=4.0,<5.0" "rpyc>=4.0"
            ln -s setup_gui.py setup.py
            '';
          postInstall =
            ''
            # conflicts with linien-client
            rm -rf $out/lib/python3.10/site-packages/linien/__pycache__
            '';
        };
        # replace broken (as usual) setuptools launcher
        linien-gui = pkgs.stdenvNoCC.mkDerivation {
          name = "linien-gui";
          phases = [ "installPhase" "fixupPhase" ];
          installPhase =
            ''
            mkdir -p $out/bin
            cat > $out/bin/linien << EOF
            #!${pkgs.python3.withPackages(ps: [ linien-gui-internal ])}/bin/python
            import linien.gui.app
            linien.gui.app.run_application()
            EOF
            chmod 755 $out/bin/linien
            '';
          nativeBuildInputs = [ pkgs.qt5.wrapQtAppsHook ];
          dontWrapQtApps = true;
          postFixup = ''
            wrapQtApp "$out/bin/linien"
          '';
        };
        conda-channel = makeCondaChannel [
          {
            name = "sipyco";
            version = artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco.version;
            src = artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco.src;
            dependencies = [ "numpy" "pybase64" ];
          }
          {
            name = "pythonparser";
            version = artiqpkgs.packages.x86_64-linux.pythonparser.version;
            src = artiqpkgs.packages.x86_64-linux.pythonparser.src;
            dependencies = [ "regex" ];
          }
          {
            name = "artiq-comtools";
            version = artiqpkgs.inputs.artiq-comtools.packages.x86_64-linux.artiq-comtools.version;
            src = artiqpkgs.inputs.artiq-comtools.packages.x86_64-linux.artiq-comtools.src;
            dependencies = [ "numpy" "aiohttp" "sipyco" ];
          }
          {
            name = "artiq";
            version = artiqpkgs.packages.x86_64-linux.artiq.version;
            src = artiqpkgs.packages.x86_64-linux.artiq.src;
            preSetup =
              ''
              export VERSIONEER_OVERRIDE=${artiqpkgs.packages.x86_64-linux.artiq.version}
              export VERSIONEER_REV=${artiqpkgs.sourceInfo.rev}
              '';
            dependencies = [
              "pythonparser"
              "scipy"
              "numpy"
              "prettytable"
              "h5py"
              "python-dateutil"
              "pyqt"
              "qasync"
              "pyqtgraph"
              "pygit2"
              "python-levenshtein"
              "sipyco"
              "llvmlite"
              "llvm-tools"
              "lld"
              "tqdm"
              "python-lmdb"
              "artiq-comtools"
            ];
          }

          {
            name = "korad_ka3005p";
            version = korad_ka3005p.version;
            src = korad_ka3005p.src;
            dependencies = [ "sipyco" "asyncserial" ];
          }
          {
            name = "novatech409b";
            version = novatech409b.version;
            src = novatech409b.src;
            dependencies = [ "sipyco" "asyncserial" ];
          }
          {
            name = "lda";
            version = lda.version;
            src = lda.src;
            dependencies = [ "sipyco" ];
          }
          {
            name = "thorlabs_tcube";
            version = thorlabs_tcube.version;
            src = thorlabs_tcube.src;
            dependencies = [ "sipyco" "asyncserial" ];
          }
          {
            name = "newfocus8742";
            version = newfocus8742.version;
            src = newfocus8742.src;
            dependencies = [ "sipyco" ];
          }
          {
            name = "hut2";
            version = hut2.version;
            src = hut2.src;
            dependencies = [ "sipyco" ];
          }
          {
            name = "wand";
            version = wand.version;
            src = wand.src;
            dependencies = [ "artiq" "qasync" "numpy" "scipy" "influxdb" ];
          }
          {
            name = "flake8-artiq";
            version = flake8-artiq.version;
            src = flake8-artiq.src;
            dependencies = [ "flake8" ];
          }
          {
            name = "trap-dac-utils";
            version = trap-dac-utils.version;
            src = trap-dac-utils.src;
            dependencies = trap-dac-utils.condaDependencies;
          }
          {
            name = "dax";
            version = dax.version;
            src = dax.src;
            dependencies = dax.condaDependencies;
          }
          {
            name = "dax-applets";
            version = dax-applets.version;
            src = dax-applets.src;
            dependencies = [ "python>=3.5" "artiq" "numpy" "pyqt" "pyqtgraph" ];
          }
        ];

        msys2-pythonparser = msys2.makeMsys2Package rec {
          name = "python-pythonparser";
          version = artiqpkgs.packages.x86_64-linux.pythonparser.version;
          src = artiqpkgs.packages.x86_64-linux.pythonparser.src;
          depends = [ "mingw-w64-x86_64-python-regex" ];
        };
        msys2-sipyco = msys2.makeMsys2Package {
          name = "python-sipyco";
          src = artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco.src;
          inherit (artiqpkgs.inputs.sipyco.packages.x86_64-linux.sipyco) version;
          depends = [ "mingw-w64-x86_64-python" "mingw-w64-x86_64-python-numpy" "mingw-w64-x86_64-python-pybase64" ];
        };
        msys2-artiq-comtools = msys2.makeMsys2Package {
          name = "artiq-comtools";
          src = artiqpkgs.inputs.artiq-comtools.packages.x86_64-linux.artiq-comtools.src;
          inherit (artiqpkgs.inputs.artiq-comtools.packages.x86_64-linux.artiq-comtools) version;
          depends = [ "mingw-w64-x86_64-python" "mingw-w64-x86_64-python-sipyco" "mingw-w64-x86_64-python-numpy" "mingw-w64-x86_64-python-aiohttp" ];
        };
        msys2-artiq = msys2.makeMsys2Package {
          name = "artiq";
          inherit (artiqpkgs.packages.x86_64-linux.artiq) version src;
          prepare =
              ''
              export VERSIONEER_OVERRIDE=${artiqpkgs.packages.x86_64-linux.artiq.version}
              export VERSIONEER_REV=${artiqpkgs.sourceInfo.rev}
              '';
          depends = [
            "mingw-w64-x86_64-python"
            "mingw-w64-x86_64-python-h5py"
            "mingw-w64-x86_64-python-pyqt5"
            "mingw-w64-x86_64-qt5-svg"
            "mingw-w64-x86_64-python-qasync"
            "mingw-w64-x86_64-python-pyqtgraph"
            "mingw-w64-x86_64-python-numpy"
            "mingw-w64-x86_64-python-scipy"
            "mingw-w64-x86_64-python-dateutil"
            "mingw-w64-x86_64-python-prettytable"
            "mingw-w64-x86_64-python-tqdm"
            "mingw-w64-x86_64-python-pygit2"
            "mingw-w64-x86_64-python-sipyco"
            "mingw-w64-x86_64-python-llvmlite"
            "mingw-w64-x86_64-python-pythonparser"
            "mingw-w64-x86_64-python-levenshtein"
            "mingw-w64-x86_64-lld"
            "mingw-w64-x86_64-artiq-comtools"
            "mingw-w64-x86_64-python-lmdb"
          ];
        };
        msys2-asyncserial = msys2.makeMsys2Package {
          name = "python-asyncserial";
          version = artiqpkgs.packages.x86_64-linux.asyncserial.version;
          src = artiqpkgs.packages.x86_64-linux.asyncserial.src;
          depends = [ "mingw-w64-x86_64-python" ];
        };
        msys2-korad_ka3005p = msys2.makeMsys2Package {
          name = "korad_ka3005p";
          version = korad_ka3005p.version;
          src = korad_ka3005p.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" "mingw-w64-x86_64-python-asyncserial" ];
        };
        msys2-novatech409b = msys2.makeMsys2Package {
          name = "novatech409b";
          version = novatech409b.version;
          src = novatech409b.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" "mingw-w64-x86_64-python-asyncserial" ];
        };
        msys2-lda = msys2.makeMsys2Package {
          name = "lda";
          version = lda.version;
          src = lda.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" ];
        };
        msys2-thorlabs_tcube = msys2.makeMsys2Package {
          name = "thorlabs_tcube";
          version = thorlabs_tcube.version;
          src = thorlabs_tcube.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" "mingw-w64-x86_64-python-asyncserial" ];
        };
        msys2-newfocus8742 = msys2.makeMsys2Package {
          name = "newfocus8742";
          version = newfocus8742.version;
          src = newfocus8742.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" ];
        };
        msys2-hut2 = msys2.makeMsys2Package {
          name = "hut2";
          version = hut2.version;
          src = hut2.src;
          depends = [ "mingw-w64-x86_64-python-sipyco" ];
        };
        msys2-flake8-artiq = msys2.makeMsys2Package {
          name = "flake8-artiq";
          version = flake8-artiq.version;
          src = flake8-artiq.src;
          depends = [ "mingw-w64-x86_64-python-flake8" ];
        };
        msys2-repos = msys2.makeMsys2Repos [
          msys2-pythonparser msys2-sipyco msys2-artiq-comtools msys2-artiq
          msys2-asyncserial
          msys2-korad_ka3005p
          msys2-novatech409b
          msys2-lda
          msys2-thorlabs_tcube
          msys2-newfocus8742
          msys2-hut2
          msys2-flake8-artiq
        ];
      };

      hydraJobs = packages.x86_64-linux;

      devShells.x86_64-linux.msys2 = pkgs.mkShell {
        name = "dev-shell-msys2";
        buildInputs = with pkgs; [
          curl
          pacman
          fakeroot
          msys2.wine-msys2
        ];
      };
    };
}