That's impressive. Together with (neo)vim as $GIT_EDITOR I can see that being really nice to use.
Now you could decide to systematize the "grammar" of your shortcuts somehow, and, well... it's definitely an idea people have had before. ;)
https://magit.vc/screenshots/popup-diff.png
Not an Emacs fanboy, by any means: I use Spacemacs. Magit is objectively excellent, though.
Me too, though I have them setup on shell rather than .gitconfig. Saves that one space after 'g' :)
The ones I find myself using most are 'gru' for git remote update, and 'gka' for "gitk --all -500 &". (The -500 is there to prevent my laptop dying when I run gitk with --all on the Linux kernel repo without second thought...)
So I can just e.g. type "g ws" to tell [g]it to give me the [w]orking tree [s]tatus. Seeing people actually type "git status" is just painful.