> When I built out an A/V and networking rack for my house

Asside: where has this american-english prediction for adding random prepositions come from? Everyone now builds ‘out’ things instead of just building them, hates ‘on’ things instead of just disliking them from the comfort of their chair, and I was today told to switch ‘up’ a config file for a tiling window manager. I don’t remember this from the 2000s.