main.yml

- uses: actions/cache@v2
    with:
      path: |
        ./node_modules
        ${{ github.workspace }}/.next/cache
      # Generate a new cache whenever packages or source files change.
      key: ${{ runner.os }}-nextjs-${{ hashFiles('**/yarn.lock') }}-${{ hashFiles('**.[jt]s', '**.[jt]sx') }}
      # If source files changed but packages didn't, rebuild from a prior cache.
      restore-keys: |
        ${{ runner.os }}-nextjs-${{ hashFiles('**/yarn.lock') }}-