Well, if we take the people who would install ring in the first place and have some tiny server at home that can actually install software I would say the chances go up significantly.

It could use some streamlining, e.g. get it into package managers for whatever distro is running on it, automatic pairing (multicast on the local network), maybe detection of compatible devices.

UX is basically a separate set of problems you have to solve on top of making it work technically.