I like the look of this a lot, particularly the support for running-from-local. I think git is such an ideal backend for something like a wiki, where multiple contributors and version history are both so important.

Tangent: how do HN folks generally do technical wikis -- or really, just keep track of the technical details of your software -- in large software development organizations?

My org uses Confluence for some stuff, Github pages and READMEs for others. It's... fine. It's not the worst I've ever seen, you can find some useful stuff with a little bit of work and some knowledge about where to look, but it's still very likely that whatever you're reading is either outdated or now-irrelevant.

How do you (and your team) solve the challenge of keeping documentation actually relevant and up-to-date when there are so many people writing so much code, then leaving two years later?

Notion.

There is https://stackedit.io/ offering it but I stopped using it because of bugs when trying to edit on mobile. And it basically abandoned for the last 2 years https://github.com/benweet/stackedit (only some deps updates, nothing more).