You can find example workflows in "Publishing and installing a package with GitHub Actions" or in any of these GitHub Actions guides:
English
GitHub Packages
Free, Pro, & Team
English
Example workflows for publishing a package
To help you get started with your own custom workflows, review some example workflows for publishing packages.
Help us make these docs great!
All GitHub docs are open source. See something that's wrong or unclear? Submit a pull request.
Make a contribution