I’m running openWRT on a nanopi R5S. It’s tiny, robust, cheap, and uses very little power. It came with FriendlyElec, a fork of openWRT designed specifically for the device, but if flashed the standard version onto it so I could get more support from reading forums. I don’t know if that was the right move.
It was a bitch to get set up right, but that’s due to my lack of experience, not the device. It didn’t help that there was a major update to OpenWRT/LuCI right in the middle of my figuring out the program, that drastically changed the GUI. It also didn’t help that I was setting up a NAS, and a proxmox server at the same time, so anytime something broke I had 3 system to troubleshoot.
All that aside, it’s been working great since setup with zero maintenance. It does get hot enough that I don’t set it on any other device, but it never throttles itself or overheats.
I want to watch the hound and aria bitch at each other while walking arounf for 15 seasons.