First of all, thank you for considering contributing to Checkpoint.ts project.
If your contribution is not straightforward, please first discuss the change you wish to make by creating a new issue before making the change.
One of the project goals is to be easy to understand so, especially for github actions, try to keep things simple and to add comments whenever this is not possible.
Before reporting an issue on the issue tracker, please check that it has not already been reported by searching for some related keywords.
Try to use a clear title, and describe your problem with complete sentences.
Try to do one pull request per change.
Please see DEVELOPMENT