PRs are not a great way to maintain it, need a front end that requires a human-shaped effort, email and CATCHA, although agents will figure it out.
But then the back end can be automated to some extent, automate getting a signal as to whether someone put real effort into the linked resource, whether the resource has any traction.
At the end of the day the whole point is knowledgeable human SME curating the list, so it will be hard if it's a fast-moving topic. And that is also what makes it useful, people can leverage other people's effort.
Anyway wikipedia still seems to work but it takes a well-motivated, well-tooled army. Maybe we need that, some kind of updated wikipedia for tech updated by SMEs with the right tech stack behind it. A sort of meta-stack-overflow that tells people and agents where to go to get answers.