@navi @jn @domi @famfo @tufo @merlin Boards schematics are cool but I feel like those are only useful when you want skilled repair-shop work done and still rely on things like firmware and related tools not being behind locked doors (Apple being an horrible example of that).
Plus I don't really see this kind of thing happening much given the expensive tools needed (like for example I don't see most hackerspaces having them, at least outside of the ones that are run like a business), so I think most people would just… parts-swap or get a whole new machine.

Meanwhile as far as I can tell parts that are either consumable like the battery or easily breakable under use/accident like the fan, keyboard, or touchpad are proprietary.
So they keep a lot of the status quo made by modern laptops.