1. Create a pull request for release "Release vX.X.X"
2. Run in root yarn bump-release X.X.X
3. run yarn bump-release to bump focal and focal-atom version, update dependancies in private packages and create a commit
4. Merge and manually create GitHub Release
5. On release, "publish" GitHub Actions will trigger build and attach tarball to "Release". For details, see release.yml

For each push into pull_request, CI runs tests. Check tests.yml for details.