For content that is very narrow niche (on the expert/author side, hopefully with a broader reader base to make it worthwhile) and thorough, Wikipedia might not be the place to write. You can try something like Wikia, where one person can create a topic they care about, and post their information (and welcome others to contribute).

Then someone can link form Wikipedia to Wikia.

Wikia isn't just for TV shows and games. For example, the text editor Vim has a Wikia section: vim.wikia.com