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Golem: A Self-Made Person! Alpha 1 out now!
(surrealpartisan.itch.io)
I like Terminator for its mouse-controlled multiplexing. I also like the fact that it's made with Python, although I haven't utilized this fact in practice.
I don't know what Nitter is, but I think bird.makeup might be what you are looking for.
It me.
I've got used to XFCE.
Xonsh. For basic use (running CLI programs with arguments) it works like any other shell, and for other uses it has nice Python syntax (and libraries!). For example, I like not needing a separate calculator program, as I can do maths directly in the shell with an intuitive syntax.