I always see a lot of great and diverse solutions for maintaining information and even being self sufficient in the face of some sort of societal collapse and loss of infrastructure. I never see plans mentioned for what to do afterwards. The point being, there seems to be an assumption of either permanence to things like storage and alternative energy sources, or perhaps an implied having to just last a decade or so and things will be rebuilt.
So hypothetical, something happens and things go away, but someone in your community has set up a center of preservation of knowledge that can be tapped into through a mesh network, and everyone has a minimal power setup to use some things to do this and other electronic based work. Now what? Is asking this question too vague since there can be so many scenarios possible and we just have to figure it out from there?
TL;DR - what happens to a post-collapse tech center in the long run since we see all the time that there are limits to even the best storage media and parts wear out even in non-moving solar panels. Mass replacements and salvage are a given, but even that has limits and problems.