Using a Raspberry Pi to add a second HDMI port to a laptop
pierre-couy.dev
A step-by-step tutorial you can follow along, featuring ffmpeg, xrandr, tcpdump and a dhcp server running on a Raspberry Pi

I made this project a few months ago, and got some good feedback when I shared it. I also made a Github repo with scripts and config files, but I did not get a lot of feedback on it.

Anyway, I’d love to read your thoughts about this project.

I’m also looking for lemmy communities related to DIY tech projects and Raspberry Pis, so feel free to recommend some communities :)