My first as the Performa 476, which was an LC475 with a 230 MB hard drive compared to 160 MB drive, but had the Motorola 68LC040, which didn't have the maths co-processor. I spent the money to buy the full 68040 25 MHz processor and boosted my 4 MB of RAM to 36 MB. I doubled the money I put into it with just those two pieces.Which Mac was it? Of course adding extra memory cards even to the soldered in ones is hard.
Lots of things earlier but now with modern IDEs we get code completion, AI pair programming, and even other things to automate writing tedious things versus reading Stack Overflow threads and scrolling for answers...
Working on enterprise-sized machines was easier for me to develop software. The stability of the operating system and the interfaces was incredible. The development environment was useful but not always the most productive.
I ended up writing extensions for our batch/scripting language that added While, Until, and Case, and the interpreter to spit out code the compiler could handle.