The Teensy is now able to emulate an Atari ST computer with VGA output and MIDI control via its USB host interface.
https://www.youtube.com/watch?v=H-TlCDBwdak
https://www.youtube.com/watch?v=fzoTYUpEOKs
https://github.com/Jean-MarcHarvengt/MCUME/blob/master/README.md
https://www.youtube.com/watch?v=H-TlCDBwdak
https://www.youtube.com/watch?v=fzoTYUpEOKs
https://github.com/Jean-MarcHarvengt/MCUME/blob/master/README.md