For instance an RPI that just boots straight to a full screen browser with nothing else. I’ve used Magic Mirror but I want to switch to a web based dashboard instead.
Edit to clarify: Specifically talking about a cheap computer and monitor setup, not a tablet and touch controls won’t matter.


I’ve used Armbian and DietPi. Currently running a magic mirror on a Rock64 and a NAS on an ODROID HC4. Of the two OSes, I think I’d recommend Armbian. Skip installing a DE and just get a basic X session with a simple web browser.
Note that MagicMirror is web based, so the setup steps for putting up a web browser would be similar.
I do exactly this with Armbian and an Orange Pi Zero 3 for a little Home Assistant display.
Autostart a browser in kiosk-mode on boot. Nice and simple.
I also made an image of that SD card if I ever need to set up another.