flake: init

flake: use nixpkg unstable for KiCad 9
flake: add KiCad project output script

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1744098102,
+        "narHash": "sha256-tzCdyIJj9AjysC3OuKA+tMD/kDEDAF9mICPDU7ix0JA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c8cd81426f45942bb2906d5ed2fe21d2f19d95b7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,40 @@
+{
+  # unstable for kicad 9.0
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  outputs =
+    {
+      nixpkgs,
+      ...
+    }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+      kicad-project-name = "cxp_sfp";
+      kicad-main-version = 9;
+    in
+    {
+      formatter.x86_64-linux = pkgs.nixfmt-rfc-style;
+      devShells.${system}.default = pkgs.mkShell {
+        name = "kicad-dev-shell";
+        packages = [
+          pkgs.kicad
+        ];
+      };
+      packages.${system}.default = pkgs.stdenv.mkDerivation {
+        name = "project-output";
+        src = ./src;
+        nativeBuildInputs = [ pkgs.kicad ];
+
+        installPhase = ''
+          # fix "/homeless-shelter cannot be created" error
+          # see https://github.com/NixOS/nix/issues/670#issuecomment-1211700127
+          export HOME=$(pwd)
+          export KICAD${builtins.toString kicad-main-version}_3DMODEL_DIR=${pkgs.kicad.libraries.packages3d}/share/kicad/3dmodels
+
+          mkdir -p $out
+          kicad-cli jobset run ./${kicad-project-name}.kicad_pro -f ./${kicad-project-name}.kicad_jobset
+          cp -r ./result/* $out
+        '';
+      };
+    };
+}