Techie stuff is various odds and ends documenting various techniques and methods that have taken me some investigation to work out, and have felt the need to document in case I ever need to redo the work, reinstall, etc. These tend to document what needs to be done on my own GNU/Linux installation, rather than explain why, or cover the full range of the area being documented.

And of course there are no guarantees that it is correct, however it does work for me.