i want to make a game thats voxel based like 'craft, where you mine and craft stuff, but i also want it to have physics engine like 'blox (NOT A 'BLOX THREAD DO NOT TALK ABOUT IT)

i want to be able to build random machines that operate with actual realistic physics in a way that isn't just crafting a machine and placing it. i want parts to actually interact and use stuff like hinges, constraints, ropes, there'll be gravity for stuff.
i want to have the ability to create complex machines from simple rules and physics, like if i put a few parts together in the right way and set it up right, they'll work like a real life engine. stuff like that just sounds so cool to toy with. imagine inventing wacky ass machines that just do random shit. but with survival-ish stuff involved. you'd be forced to engineer things yourself in order to get anywhere in the game, but it'd be fun because you'd get that "woah look what i made" feeling

im just not sure how to combine the two concepts in a way that would be easy and fun to play with