Oh, I think I've heard of Tesseract before... The reason I ended up going with Alexandrite was because Tesseract looked a little over-featured and very busy; not really what I was looking for, but it looks great!
A shame about those issues with developments. Sometimes that's just what happens with Open Source, especially for niche stuff developed by a single individual. Do you know why the dev swore off the Fediverse? I'm very interested in why someone would decide that. I did go thru their post history and got an idea as to a possibility, but I wonder if they made a post about it or something that I might've missed.
Amazing :D