chore: add ci action

Author: frectonz

.github/workflows/ci.yml

@@ -0,0 +1,19 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+
+      - name: Build Release
+        run: nix build .
+
+      - name: Build Docker Image
+        run: nix build .#docker