Yes it runs on a Raspberry Pi 4B, I installed trixie os on the Pi and just copied and pasted all the Linux cmds (set it to start as a service as well) and then at the end and this is the crucial bit change the boot up to console after you have copied,pasted installed all the cmds in the instructions they have it as the next step after sudo apt update. Then login to the Pi off another local browser http://yourraspberypiip:8080 find your already running OMT feed in the sources section, reboot the PI and it should work automatically on the monitor. Make sure the HDMI port on the PI your using is the one next to the USB power port. Just cannot seem to get any audio.

Here are the instructions https://github.com/openmediatransport/omtplayer