Add github action

.github/workflows/build-installer-images.yml

@@ -0,0 +1,52 @@
+name: Build and upload Raspberry Pi installer images
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      SSH_PUB_KEY: ${{ secrets.SSH_PUB_KEY }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+
+      - uses: cachix/install-nix-action@v31
+      - run: nix build
+      - run: nix flake check
+
+      - name: Inject SSH public key
+        run: |
+          sed -i "s|# YOUR SSH PUB KEY HERE #|$SSH_PUB_KEY|g" flake.nix
+
+      - name: Build rpi02 installer image
+        run: nix build .#installerImages.rpi02 --out-link out-rpi02
+
+      - name: Build rpi4 installer image
+        run: nix build .#installerImages.rpi4 --out-link out-rpi4
+
+      - name: Build rpi5 installer image
+        run: nix build .#installerImages.rpi5 --out-link out-rpi5
+
+      - name: Collect built images
+        run: |
+          mkdir -p images
+          for out in out-rpi02 out-rpi4 out-rpi5; do
+            for file in "$out"/*; do
+              cp -L "$file" images/
+            done
+          done
+
+      - name: Upload images artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: installer-images
+          path: images

flake.nix

@@ -218,6 +218,12 @@
           # YOUR SSH PUB KEY HERE #
 
         ];
+        services.openssh = {
+          enable = true;
+          passwordAuthentication = true;
+        };
+
+        users.users.nixos.initialPassword = "password";
 
         environment.systemPackages = with pkgs; [
           tree