Hm, I've recently restored my Osborne 1 to working order, but without the games of other 8-bit computers of the 80's(though the Space Invaders knock off ain't half bad, especially for a computer that doesn't have a graphic mode), I can't really think of much to do with it as the bundled Wordstar and Supercalc aren't quite the draw they were nearly 40 years ago. Helping out with a port of this might be a neat way to make it useful one last time(assuming somebody made it useful with that tiny 5" screen in its first life).
I have a machine of similar vintage (A Kaypro 2/84), and I would highly recommend getting a copy of Turbo Pascal 3 to play around with. It looks like the Osborne has 4KB of video RAM - I bet you could make some fun demos for it.
Osborne-1 was before the internet. So if you were not in some Merican university or corporation you were very much on your own. I made chess, emacs, lisp, pascal just like that, with assembler. -- I probably made the assembler too, because I was using VAX assembler with Z80-macros at first.
Aniways I was incredibly good with assembly and machine code. I remembered all the hex-codes and could read and write long programs with numbers alone. In the alternate "Difference Engine"-future this skill would have been eternal and appreciated as genius-level.
I remember the Osbornes, I had one for a few months when I was a kid.
IIRC they had parallel ports on the front that you can use as GPIOs if you fancy flashing a few LEDs or controlling relays.
There was also a dBase implementation for it.
Since you also had a serial port (RS-442??), you could in theory use the it to get internet access and in theory control a relay from the internet making the worlds oldest IoT hub/controller?
