Hello people!
First and foremost, I really appreciate your project! I am also using it heavily in a library I am making - eventhive.

So, I am trying to use your fastapi PubSub in a project that cannot use compiled C extensions.

This wouldn't be a problem as fastapi is Python, but broadcaster does require a postgres dependency that contains C code, failing my build.

I propose to create optional dependencies, exactly like broadcaster does, so I can exclude the postgres dependency that creates the issue - I'm not planning to use postgres anyway!

Thanks again for your project, it really is very useful!