Desktop computers have been this way for years.
Using generic components to build a desktop computer.
Case.
Power supply.
Motherboard. (provides all the external connections)
CPU.
Memory.
Graphic card.
SSD drive, Hard drive, or M2 drive.
Any needed cooling fans or liquid cooling if you like.
Maybe a sound card, if you do not like sound provided on the motherboard.
Monitor.
Keyboard.
Mouse or track pad.
Any other external connections you want in the case that the motherboard does not provide.
All the parts using universally standard accepted power. data, cable connections.
All my desktop computer have been built by me using these generic parts.
First one was built around 1995.
There is an overwhelming number of any of these parts to select from to use.
Provided by a large number of different manufacturers of hardware.
Picking the exact part to use can get overwhelming.
Examples:
Pick any of the Intel CPU's
Now pick from about 50+ motherboards that they could be used with.
I built a Desktop computer, using a case manufactured in 1993, with all new parts recently manufactured.
The old case had all needed mounting points, access slots, mount bays, etc.... to match what the new hardware needed.
That is how universal this desktop stuff is.
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Looking at this laptop idea.
What comes to mind. Is this company the only place you will be able to get replacement parts?
Some of it could be generic parts, but some seems to be specific to this design.
Example:
The expansion card idea looks like only from them part.
The monitor bezel looks like only from them.
The motherboard looks like only from them.
Laptop case looks like only from them.
The M2 drive and the memory may be the only generic parts.
Maybe the CPU, but how is it connected to the motherboard?
Different versions of CPU's are not going to work on the same motherboard. Need different mounting and connection pin setups.
The expansion card idea seems to be the only really useful feature.
But you seem to have to buy individual cards to use.