What do we do when the supply chain collapses? What if chip manufacturer A stops shipping their chips to OEM manufacturer B who then can't deliver their stuff to distributor C who then can't sell you your favourite electronics anymore all because company D stopped shipping equipment that chip manufacturer A needs to build their chips?
For a while, old equipment will be useable, but eventually it will start breaking down and we'd need to find ways to repair it without having to rely on external suppliers. We'll have to go dumpster diving to search for parts because manufacturing complex electronics at home is not feasible.
Lots of modern devices incorporate embedded microcontrollers which can be harvested and repurposed. We might face issues such as OEM locks or whatever other methods manufacturers deploy to prevent their devices from being reprogrammed or having their code stolen.
In the case of electronic components, we will be able to harvest some of the larger and more hackable components, but unfortunately most modern computing tech uses extremely small integrated parts which we won't be able to salvage, so that will all be wasted.
What are (You) going to do if the supply chain collapses? Will (You) help us rebuild the computer or will you let us lose this amazing technology?