Torminal

Awesome project! I wrote a little guide to Pasteguard with OpenWebUI: https://torminal.com/posts/homelab/open-router-webui-pasteguard/, hope thats okay. I recycled your chart about the "How does it work" section, if you are not fine with me reusing it, please tell me.
Greetings, I am looking forward for the Browser extension!

Mein Fehler, da war ich wohl schon im Halbschlaf

Hatte ich letztens auch, hab meinen Lösungsweg zusammengeschrieben für andere: https://torminal.com/posts/windows/move-windows-efi-partition/

Yes, they are compatible! If you cut it out from a Metal sheet, only the thickness of the sheet could be a problem. All hooks/ addons are based on a thickness of 5mm, more will make problems and less will make the hooks feel loose, just as a hint.

This illustration helped me a lot: https://makerworld.com/de/models/905950-ikea-skadis-pegboard-36x56