This is why I've been building https://histre.com/

Tools like Confluence, Notion, etc require someone to spend time capturing this specifically, and that's why it never works out, imho. You get stale documents at best.

You need a tool that integrates with your workflow, where it can save the signals you generate and also when you do need to take a note manually, you do it in a way that doesn't break your flow.

I can't speak to the Roadster case you asked about of course, but capturing tribal knowledge and making it accessible is one of the big goals for Histre.