The discussion here reminded me of one of my favorite demos, someone live coding Qt5 and QML on a first a generation Raspberry Pi, 1080p HDMI. Sort of a mashup of CSS and JavaScript for simple shaders. Fourteen years ago.

https://youtu.be/0j-Wakm5B84?is=7dU_EvFyk_nQNwjO

It's like a peek into a CSS future from a different timeline. Something we could have had.