There is a UEFI Pixelflut server, using UDPv6 and GOP, written in the Zig language.
Pixelflut is a multiplayer canvas. What happens if you give a bunch of hackers the ability to change pixel colors on a projector screen? Pixelflut is a very simple ASCII based network protocol to draw pixels on a screen. You can write a basic client in a single line of shell code if you want, but you only get to change a single pixel at a time. […]
https://github.com/nrdmn/uefi-pixelflut
More-info:
https://github.com/defnull/pixelflut
https://cccgoe.de/wiki/Pixelflut
Firmware Security 