I first got the server rack back in 2011. At the time I lived alone in a house; I had a UPS, single server, a few cheap NAS’ and a switch in it. When I met my girlfriend, and we moved together about two years later the rack went into storage. And it stayed in storage until we bought our house late 2014, where we currently live. The rack was put to use in my home office in the basement, but not really utilized much. It’s only lately, and after I found /r/homelab, that the rack was truly put to use in my current homelab.
Wooden 2-post open rack frame
My first “rack” was made of wood. It monitored, meaning displayed and alerted, on some metrics on my Linux server. And controlled a few lights and the alarm system in my room.
I really enjoyed making the computer control the lights.