its a bridge relay.mostr.pub by @Alex Gleason he is working on something better called ditto, which more replaces an instance, and allows you to use fedi apps to access nostr 

 @StephanGuy @✙ dcc :pedomustdie: :phear_slackware:  @m0xEE @Alex Gleason that's really cool. having interop with different protocols seems like a good move forward.