Build recoverykit-amd64 ISO and upload as CI artifact

Signed-off-by: Andrei Jiroh Halili <[email protected]>

.github/workflows/update-flakes.yml

@@ -13,43 +13,54 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Nix
-        uses: cachix/install-nix-action@v14
+
+      - name: Setup Deterinate Nix
+        uses: DeterminateSystems/nix-installer-action@main
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          determinate: true
 
       - name: Update flake
         run: |
-          echo ::addgroup:
+          echo ::addgroup::Updating lockfile
           nix flake update
-          echo ::endgroup
+          echo ::endgroup::
+
+          echo ::addgroup::Metadata
           nix flake metadata
+          echo ::endgroup::
 
       - name: Commit and push changes
         run: |
-          git config --global user.name "github-actions[bot]"
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git config --global user.name "RecapTimeBot"
+          git config --global user.email "recaptimebot@gmail.com"
           git add flake.lock
           git commit -m "Update flake.lock" || echo "No changes to commit"
           git push
-  build:
+  build-iso:
     needs: [update-lockfile]
+    name: Build recovery ISO
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - name: Set up Nix
-        uses: cachix/install-nix-action@v14
+
+      - name: Setup Deterinate Nix
+        uses: DeterminateSystems/nix-installer-action@main
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          determinate: true
+
       - run: nix flake metadata
+
       - run: |
-          echo working on it soon!
-          
+          mkdir dist
+          echo ::addgroup::Building amd64 minimal ISO file
+          nix build .#nixosConfigurations.recoverykit-amd64.config.system.build.isoImage --verbose --show-trace
+          cp result/iso/*.iso ./out/ -rv
+          echo ::endgroup
+      
+      - name: Upload as artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: nixos-recoverykit-iso
+          path: dist