Also, interesting you mention Atari ST in the readme, I wrote a VT52 emulator in m68k assembly for my ST because the built-in emulator couldn't keep up with maximum baudrate (my ST did not have a blitter chip). Salvaged it from a floppy disk a couple of years ago and put it on gh: https://github.com/remvee/st-tty
Also, interesting you mention Atari ST in the readme, I wrote a VT52 emulator in m68k assembly for my ST because the built-in emulator couldn't keep up with maximum baudrate (my ST did not have a blitter chip). Salvaged it from a floppy disk a couple of years ago and put it on gh: https://github.com/remvee/st-tty