I live with a software engineer, so it's kind of hard to do some things low-tech. Though today, we put up a pen for the call ducks, and that was pretty low-tech. Hardware cloth, 2x4 welded wire, zip-ties, t-posts, etc.
Farm Innovators 4250
Pros
Holds lots of eggs
Cons
Dents easily
Huge temperature differences across the incubator
The sensors were placed together to calibrate them against each other. Xiaomi sensors are numbered Xiaomi 1-4 from left to right.