So I was thinking solr for search of documents and OCR to scan screen shots.
This came about thinking I'd like more people to be able to use joke assistant so high quality Linux knowledge would be good especially in remote locations or dodgy connections
for a lot of linux things these 2 utils / commands are good, if pages are available etc. etc. - i prefer info in there to any online docs.
ofcourse, that doesn't include things 'on linux' but not linux, unless they are installed and include for example man pages (a lot of things do this actually, which is nice.)
know its not like devdocs perhaps but its a good core base of knowledge people can tap into when working on linux. imho a lot of answers can be found in there.
you can also add your own man pages / info pages specific to an org or machine and tell people how to open those pages to include offline docs for things u like in a bit of a standard way across linux devices. (i never seen a linux that doesn't support these commands, but didn't try all distros ofc...)
But man pages and the like are crucial too.