I host this blog from my garage
Heh, I'm actually more interested in the "garage" piece of the blog which is barely touched on. I also run a home lab, but from my climate-controlled relatively clean basement. I've thought about moving it to the garage, but I'm worried about temperature and dust/dirt ingress.  Do you have a sealed cabinet or air filters or any other environmental controls around the servers? Or are you using industrial machines rated for dusty locations? Otherwise a garage actually doesn't seem like a great place to put servers.