Not a fan of emulation - everyone knows that so there's no need for me to repeat it, ad nauseum.
But...I know some of you are interested in it and it seems that getting a BBS to run under something like Hatari is apparently very difficult to do.
With that in mind, people might want to follow this thread at Atari-Forum:
https://www.atari-forum.com/viewtopic.php?f=51&t=43575
Interesting they have the source code and completed what was left unfinished on the modem side. Who knows what else is missing but glad to see work being done..