There isn’t. Yes Wikipedia has a lot of info but think of all the information that is in the hands of governments and corporations that are closely held secrets. Or that’s only in the minds of a few experts on the planet.

Like sure Wikipedia can tell you what a CPU is. But to build one from scratch, from the silica to building the machines and factories, that information is spread across multiple companies and never shared with the public. And only a few experts truly know how to do every step in the process, they have vital knowledge of that process that they feel is common sense and is not written down, which they pass on to the people they mentor. If those few people die at the same time in a catastrophe the knowledge that isn’t written down dies with them.

We already lost a lot of information of old tech from not that long ago because the companies went bankrupt or the people involved all died. Like we don’t even have all the knowledge to rebuild the Saturn V rockets, because the people involved, who hold vital knowledge, are dead and the supporting infrastructure, like the sub contractors (who also had vital knowledge), is gone as well.