I just want to link this teardown; it is a suitable companion to this article:
https://www.youtube.com/watch?v=5k7Lv7f-5CQ
On a rational level it isn't surprising that the "compute" part is so small, given its origins, but for some reason it still caught me by surprised seeing something barely larger than a Raspberry Pi.
But, yeah, this thing is crazy modular. I particularly want to call out how trivial it is to replace the ports, given how common of a failure point they are. With the keyboard/monitor being more involved, but absolutely still approachable.
I believe he finds just a single piece of light adhesive keeping a cable in place, everything else (inc. the battery) is screws only.
It seems like a normal-sized motherboard? For comparison here is the ifixit teardown of a PixelBook Go (happens to be the laptop I am using right now). https://guide-images.cdn.ifixit.com/igi/LT6YEIeE1Svh4WCk.hug...
It looks like it's still bigger than the logic board on the 12" MacBook from 2015.[1]
I really wish Apple would resurrect that form factor, as every other MacBook since has seemed bulky in comparison. Thanks to OpenCore Legacy Patcher[2], I still haven't gotten a newer mac. With a modern M series chip, it wouldn't have such rough tradeoffs in battery life and performance. I'd definitely buy it.
1. See step 11 on https://www.ifixit.com/Teardown/Retina+MacBook+2015+Teardown...
2. https://github.com/dortania/OpenCore-Legacy-Patcher