I've always wondered why something like this doesn't yet exist. Something like a Wikipedia of man pages, programming language documentation (and official tutor

I've always wondered why something like this doesn't yet exist. Something like a Wikipedia of man pages, programming language documentation (and official tutorials), answered/archived Stack Overflow questions, etc. A central (but maybe decentralised) collection of manuals and reference sheets and all the rest. So often you go to find something and the site has expired because they gave up on the project (but it's still being used), or the forum posts have been deleted, or it's impossible to find because Google has decided you actually wanted to find <insert something unrelated> and they know better than you do. An Archive.org for tech info, with machine readable formatting so we can have a comprehensive search function. Then throw in a Wikipedia-style packaged archive you can download for Internet-free local searching and working while traveling or whatever.