Don't know 65c02 assembly, but know BASIC really well? Well, now you can boot into the extremely popular EhBASIC for the 6502 family of micro-processors on your Hacker's Edge machine!
When creating a new character, just select EhBASIC 2.22 from the Machine drop-down, then log into the game and boot your new machine.
You can find extensive documentation on EhBASIC here:
There is also a copy of the original site on Web Archive: