Downstream testing for language pacakge managers, it's buildable but perhaps not fundable?

https://nesbitt.io/2026/03/01/downstream-testing.html

Downstream Testing

Most library maintainers have no way to test against their dependents before releasing.

Andrew Nesbitt

@andrewnez Excited to see https://dependabot.ecosyste.ms/. The Dependabot compatibility score used to be more accessible before GitHub took it over.

Any early indication of problems in a release is very freeing particularly as a solo maintainer when development time is limited.

Open Source Dependabot Pull Request Tracker | Ecosyste.ms: Dependabot

Track Dependabot pull requests across open source repositories. Discover security updates, dependency changes, and automation insights for package maintainers and security researchers.