There's also the fact that a modern emulator (assuming you're running as an emulator, instead of real/raw) is that you aren't constrained by memory the way real hardware implementations were either.

I keep thinking it would be cool to emulate enough of DOS and earlier x86 to just run BBS Doors directly and connections over ws(s) to make authentication and program selection a bit easier. Even if no classic BBS terminals (currently) support connecting over WebSockets, which are easy enough to bridge.