Can't say much abt mbin, but piefeds easier/lighter to host than Lemmy. Personally if I had to host an instance for myself I'd go with piefed (theres already an alpha API at can be enabled with FLASK_DEBUG, Pferd and interstellar already support piefed)
Very happy with it. I’m running it with an SQLite database, so no extra database server is needed. And I’m using Elk as a frontend for when I don’t feel like using an app.
I personally enjoy GTS. I use it for two accounts. It's still alpha, so not feature complete, but it does all the basics I'd need and I find it to be stable.
It interacts with the Fediverse in general. Peertube follows are bugged, but Peertube is working on it. It can't really follow some Lemmy things, but van with others. Idk. :-D.
What do you mean by lightweight? Like lightweight on the client, requiring less javascript? Or on the server hoster, because the server-side is more efficient?