There was an Israeli company called Modu (probably for Modular) mentioned on TechCrunch some years ago, that did something like that, but at a higher level, IIR

There was an Israeli company called Modu (probably for Modular) mentioned on TechCrunch some years ago, that did something like that, but at a higher level, IIRC. Like, you could plug in accessories like a camera or other things, and remove them when you didn't need them. Also, I guess, if the interfaces were well defined, you could swap one module for another one of the same type, for better price, speed or other reasons. Didn't track what happened with that, but the idea seemed good.