or they could set up a system that does this by way of ‘mailing-list’ type functionality without requiring java-script or cross-site embeded elements to run amok and wreak havok on user privacy.
they seem to be on the right track as alternatives to GitHub and GitLab > https://sourcehut.org/
it’s fast, minimal and employs the older concept of ‘contributions’ as is still the case with Emacs development.
you could practically use it directly with eww in Emacs without needing a proper www browser.
email is still operable we just need to bring it up to speed with modern times and requirements/integrations.