Hey Spectre,
Cant remember if I asked you - but have you tried running your BBS in DOSEMU?
I've spun my 1995 BBS up using it (was testing the EMSI hub), and it seems pretty rock solid.
I'm using dosemu in a docker container (
https://github.com/jgoerzen/docker-dos-bbs) and it seems to work well.
I have 2 nodes running (with Portal of Power as the frontend), and the CPU is around 6%.
Outside the container, I have tcpser and tty0tty, with each dosemu using a /dev/tntX serial device. File transfers have been floorless so far.
YMMV, but if you want to try this route, you might remove some moving parts (like the NFS bit)...
...deon
... The best number for a dinner party is 2. Myself and a damn good headwaite --- SBBSecho 3.10-Linux
* Origin: I'm playing with ANSI+videotex - wanna play too? (21:2/116)