That's awesome to hear? How did you make a door work, I'd be happy to
try it out too. Which BBS Software?
I use mystic. The door in question was Dungeon Master (by John Dailey Software). The issue was that the game binary couldn't find the node config file for some reason, and the dosemu2 devs made a change which fixed it.
--- Mystic BBS v1.12 A48 (Linux/64)
* Origin: m O N T E R E Y b B S . c O M (21:4/173)