I didn't automate my job, I just did a good enough job that things stopped breaking, and I had less and less to every day. Eventually I'd just show up, make rounds, wait for things to break, make rounds again after lunch, wait until quitting time. I did try to improve the office productivity as a whole a few times by patching up the wonky database they used for accounting, but got shut down each time because of fear…
These types of gigs are often a blessing and a curse.