

Yes, and I don’t know if it could even be classed as a collaboration. They just buy them and resell them with different firmware, basically?
I assume some part of acceptance is required for that in practice, but it isn’t like Fairphone ever advertised them as an official option (as far as I can tell or saw).

Until very recently, I exclusively used the /56 prefix I get from my ISP exclusively. This is still relatively annoying in my case as this prefix changes at least daily for some reason. Clients get their IP via SLAAC.
I’ve added ULA literally less than a week ago as I have a local reverse proxy I want to handle both local and external request, in both v6 and v4. Obviously more hosts should be accessible from local clients. But I can’t tell local clients apart except by IP, and since the prefix is unstable this would require some sort of hook to update the proxy with that new prefix (might be possible, but seems like a real hassle). So here we are.