I actually started on Kbin.social, but then it got shut down, Kbin died and now fedia.io seems to be the largest one running MBin. I like the interface on MBin and I guess it’s good to have a diverse fediverse with different services, but at the same time, why use mbin when everyone congregates on lemmy instances? The local magazines on fedia are for the most part, quite dead, when compared to lemmy collections. In the end I feel like there aren’t enough people to go around to support many more services like MBin and Piefed.
Photon is available for any instance at https://phtn.app.
Alexandrite is available for any instance at https://alexandrite.app.
I don’t like when instances will host photon for anything other than the default interface, as then it’s just a more limited, outdated version of photon and another point of failure.