I use https://pipe.pico.sh for this use case. It’s a pubsub over ssh. It’s multicast so you can have multiple listeners on the same topic, and you can have it block or not block the event.
replyIt does, you're just running a command over ssh, so if you've a particularly long build then something more involved may make more sense.
replyMost builds take a long time, at least in C++ and Rust (the two languages I work in). And from what I have seen of people working in Python, the builds aren't fast there either (far faster of course, but still easily a minute or two).
replyAlso, how would PRs and code review be handled?
Your suggestion really only makes sense for a small single developer hobby project in an interpreted language. Which, if that is what you intended, fair enough. But there really wasn't enough context to ascertain that.
I did give additional context in the blog post I linked, but yes, to be clear, this is something that will really work best for small projects with reasonably fast build cycles.
replyIf you're already at the point where you're fielding pull requests, lots of long running tests, etc., you'll probably already know you need more than git over ssh.