the 600/700 family
newer PET machines (not 2001).
- - the Apple ][ and successors.
+ - the Apple ][+ and successors.
- the Atari 8 bit machines.
- the Oric Atmos.
- - the Lynx Console.
+ - the Lynx console.
The libraries are fairly portable, so creating a version for other 6502s
shouldn't be too much work.