chore: adding CI stuff

Author: douglaz

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Install Nix
+      uses: DeterminateSystems/nix-installer-action@main
+      
+    - name: Setup Nix Cache
+      uses: DeterminateSystems/magic-nix-cache-action@main
+      
+    - name: Build project
+      run: nix develop --command cargo build --target x86_64-unknown-linux-musl
+      
+    - name: Run tests
+      run: nix develop --command cargo test
+      
+    - name: Check formatting
+      run: nix develop --command cargo fmt -- --check
+      
+    - name: Run clippy
+      run: nix develop --command cargo clippy -- -D warnings