The hledger project's github actions workflows.

They have greppable one-line TRIGGER: and ACTION: comments near the top,
summarising their current intended behaviour.
These are carefully worded and should be kept up to date.

docs:

based on https://gist.github.com/mstksg/11f753d891cee5980326a8ea8c865233
http://www.btellez.com/posts/triggering-github-actions-with-webhooks.html
https://help.github.com/en/actions
https://help.github.com/en/actions/reference/events-that-trigger-workflows
https://help.github.com/en/actions/reference/events-that-trigger-workflows#scheduled-events-schedule
https://help.github.com/en/actions/configuring-and-managing-workflows/caching-and-storing-workflow-data
https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows
https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources
https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet
https://github.community/t5/GitHub-Actions/bd-p/actions

https://github.com/actions/cache
https://github.com/marketplace/actions/cache

https://github.com/actions/upload-artifact
https://github.com/c-hive/gha-remove-artifacts

https://github.com/actions/setup-haskell

https://github.com/marketplace/actions/checkout
https://github.com/sdras/awesome-actions

https://sevenzip.osdn.jp/chm/cmdline/commands/index.htm

https://github.com/mxschmitt/action-tmate
    - name: Setup tmate session
     uses: mxschmitt/action-tmate@v1

https://kodimensional.dev/github-actions
 "Dead simple cross-platform GitHub Actions for Haskell"

