If you've picked up some of the LED tiles at the @emf@social.emfcamp.org swap shop, our documentation for them is here:
https://led.limehouselabs.org/docs/tiles/dmg1083/
@eta@gotosocial.i.eta.st is also giving a talk about these on Sunday:
https://www.emfcamp.org/schedule/2024/199-driving-fancy-led-panels-with-commodity-hardware
Please send a pull request to our docs site if you figure out anything else interesting!