M‐modernize Rails??

[marrus-sh]

Mastodon now runs on Rails 6.1 which has a lot of features which did not exist when the corresponding aspects of Mastodon were first developed (Action Mailer, Action Storage, Action Cable, as some examples), which makes me think that there are probably significant parts of the Mastodon codebase which could be greatly simplified / made more normal via some (probably quite extensive) refactoring. In the interests of making Kibicat Mastodon more lightweight with fewer dependencies, we should explore making use of these technologies.