Github action to automatically limit the repo to collaborators every day. REPO_MANAGER is a personal access token in the repository secrets. Gross, but github doesn't give us individual repo admin tokens because it's 2020 and principle of yoloscope

auto-limiter.yml

name: Automatically limit
on: 
  schedule:
    - cron: "0 0 * * *"
jobs:
  limiter:
    runs-on: ubuntu-latest
    steps:
    - name: Remove existing limit
      run: |
        curl --request DELETE \
        --url https://api.github.com/repos/${{ github.repository }}/interaction-limits \
        --header 'authorization: Bearer ${{ secrets.REPO_MANAGER }}' \
        --header 'content-type: application/json' \
        --header 'Accept: application/vnd.github.sombra-preview' \
    - name: Set new limit
      run: |
        curl --request PUT \
        --url https://api.github.com/repos/${{ github.repository }}/interaction-limits \
        --header 'authorization: Bearer ${{ secrets.REPO_MANAGER }}' \
        --header 'content-type: application/json' \
        --header 'Accept: application/vnd.github.sombra-preview' \
        --data '{
          "limit": "collaborators_only"
        }'