I've gotta disagree with you here - it's not uncommon for me to be diving into a library I'm using at work, find a small issue or something that could be improved (measurably, not stylistically), and open a PR to fix it. No big rewrites or anything crazy, but it would definitely fit the definition of "drive by change" that _thus far_ has been welcomed.
First, install doom emacs. Second, create a shell alias for "magit" that is bound to "emacs -nw -f magit". Then just run magit like any other TUI app - the fact that it's in emacs is easy to forget.
Or, if you're into neovim, there's Neogit, which is inspired by magit. And if you're not, there's https://github.com/altsem/gitu
Huge fan of shelly. I wrote a little sinatra web-server that can just show the current state, and toggle the state, of a bunch of lights around my yard. I really appreciate that all you need is http, no cloud, no fuss to just put together a custom ui for them. Couldn't recommend them more highly