Everyone tends to forget the tools to make the tools to make the tools to make tools precise enough for half the shit we make. Or consistent enough. There's alot of steps between sticks stones and fire to pretty much anything today.

Sure you don't need an industrial revolution for ALOT of stuff. But hot damn are you gonna run into issues without it, eventually

which is why you should learn about medieval technology, that's something you can generally make from scratch with a team of workers.

Yeah if you only have stone tools it'll probably be shitty, but a shitty waterwheel that spins a shitty lathe is still plenty useful. It's kind of nuts how much luxury you can get in no time at all if you just know what's possible to make.