Who’s the developer of kitty… oh.
It’s the guy who said he’ll single-handedly going to keep Python 2 alive?
I don't know about that, but he's extremely competent, so I wouldn't be too surprised.
List of all python3 PRs merged by the developer in minutes to hours: https://github.com/kovidgoyal/calibre/pulls?q=is%3Apr+py3
And his claim wasn't that he would keep a generally-viable fork of Python 2 going, but that he would maintain the parts of it that he used in his Python 2 application. He wasn't trying to out-code the whole Python core team or something silly like that.
(also keyboard protocol isn't top notch, don't know about the image one)
remote control has both a socket only mode, and has the ability to allow tty connections only with a password: https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.allow_remote...
Furthermore, remote control in kitty has capability based security where you can lock down the protocol to allow individual actions with arbitrary granularity:
https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.remote_contr...