I did some 68000 assembly using my 512Ke Mac back in the days. Can't remember what was the development environment, though. And I remember these Inside Apple Macintosh books so well. That was a lot of stuff to learn. Time flies.
I dug out my ancient Inside Macintosh reference books from storage. Remember when Apple’s developer documentation came as paper books? Volumes I-III on the original Mac APIs, IV on Mac Plus, V on color Macs, and the truly massive volume VI on System 7. 📚