kitty, terminals, consoles, VTs and TTYs -- Re: root "login" xterm to increase security?

Zenaan Harkness zen at
Fri Mar 20 00:30:33 PDT 2020

On Sun, Sep 16, 2018 at 11:15:56PM -0400, grarpamp wrote:
> Any search will bring basic stuff like
> Whether xorg, wayland, xenocara, drivers, ttys, init, login, getty,
> etc are receiving any level of scrutiny, audits, fuzzing, code
> scans, etc. The ancient and obscure it is, the less people look,
> and all the above are exactly that.
> Even mashing kbd on a FreeBSD can throw console into
> unrecoverable must kill state.
> And people talk how trust X?

Yes, Linux/BSD/etc tty/console/vt drivers need rewriting.  On the bucket list, for the simple joy of it.

If interested in xterm perf, kitty kicks some serious goals - check its frame rates (comparo) in ncurses test:

(Although IMEHO, a vt ought be simplified, and support say tmux as a terminal multiplexer and disconnect/reconnect, rather than build this in as does kitty - although one can understand the temptation from the dev's perspective, elegance demands knowing when to step out of the way for the greater tmux good :).)

Possible inspiration:

Post inspired by "Hacking the planet with Notcurses":
  Hacking the planet with Notcurses

     Author Nick Black has written an extensive book on the creation of textual user interfaces using the notcurses library; it's available under the Apache license [PDF]. "Many people asked how such a thing was useful. My usual response was that numerous devices don’t present a bitmap interface, that X11 GUIs run remotely over SSH are effectively unusable, that plenty of machines don’t have a GUI environment installed, that there are obvious applications for large outdoor displays, and that Sixel isn’t well-supported across different terminal emulators. It seems impossible in an age of gigatransistor graphics cards, but the text environment still presents perceivably less latency than most GUI toolkits."

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