The Iceshrimp devs are also working on a "port" to .NET that's basically a brand new social media app, but with an upgrade path from the JavaScript version.
I also use Iceshrimp to self-host my own fediverse account and I think it's pretty good software. I think it has a better UI that Mastodon and it has some cutesy features that Mastodon lacks, like being able to emoji-react to posts.