This is a BZFlag development site. It uses a different database than production BZFlag. There is a forum, list server, key server, etc.
https://forums-dev.bzflag.org/
https://www-dev.bzflag.org/
https://my-dev.bzflag.org/db/
https://my-dev.bzflag.org/db/?action=LIST
https://my-dev.bzflag.org/listkeys/
https://github.com/BZFlag-Dev
IRC: https://web.libera.chat/ in #BZFlag
Discord: https://discord.gg/6DHkggcXM9