Hello,
the Steam Link box has been sold in sales several times for under $10 now. There must be more of them idling in peoples homes then Pogoplugs in its prime. People have tried to find a way to install custom linux distro on it but they didn't find a way to do so. Some people on doozan.com also tried. They couldn't even locate the serial console pins on the PCB as it wasn't labeled... until recently:
https://forum.doozan.com/read.php?8,46664,51689#msg-51689
they could identify the serial console pins, but the ones with the necessary skills don't have the time right now to work on this. I don't know if this information made its way to archlinuxarm, so I just post it in here. I hope someone with the skills also has one or more Steam Links lying around and has the time to try putting Arch Linux ARM on it, this would be awesome.