Below is a sample of the things we would like to automate

• Build the base projects
• Run the source code generator
• Run the linter? (maybe use StyleCopAnalyzers along with .editorconfig to define style rules?
• Build the complete source code including generated code
• Execute the unit tests (for each target framework)
• Run Coverage tests?
• Publish results as comment to PR
• Generate the NuGet package (auto increment the build NuGet package version (maybe based on branch name?)
• Create a release (in GitHub - only when we choose to do so since there might be come ceremony as part of this i.e. release notes etc not sure yet.)
• Upload to nuget.org (only when we choose to publish)
• Auto publish preview NuGet packages? on successful merge?

If we can use GitHub Actions then great since it will be nicely self-contained within GitHub otherwise other free pipeline tools could work also as long as they integrate with GitHub PR for example Azure DevOps Pipelines?