Probably not as hard as you think. Someone would need to step up to do the leg work though.
You’d probably want to hard fork the teletype codebase, then you can customise the ops in a manor sympathetic to the Aleph.
How would you interact with the DSP/BFIN bits? I guess in a similar way to sending II commands to modules.
Sorry. (Seriously though, if you do find a coder with the time, desire and expertise to want to port Teletype over to the Aleph, I’d be more than happy to help with info and support. At this point I know the Teletype codebase inside and out.)