name: CI

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: ❄️ Install Nix
        uses: DeterminateSystems/nix-installer-action@v16

      - name: ❄️ Check formatting
        run: nix fmt