Yea, that's another excellent choice! In fact, that was my first idea before deciding to move. I bought a set of plans[1] and lumber and built a 6'x12' shed in my backyard, planning to electrify it and run networking out there. Moving happened before I got around to it.

1: https://www.icreatables.com/sheds/6x12-B-backyard-shed-plans