And it promises to be the most wonderful thing ever. Already I've put some machine configuration instructions in there for a change everybody needed to perform today, and I was permitted to just send the link instead of the instructions. I'm finding holes in the instructions and patching them, and building up a troubleshooting section. This got me out of having to write a formal document in a Word template that didn't even fit what I needed documented.
Meanwhile, the prime moving force behind wanting me to do this has started arranging the wiki, and somebody else has discovered it and started adding material.