This page is being served by an old DELL laptop in its retirement, using less than 10% idle CPU on Ubuntu Server running nginx. This laptop is from 2011 and doesn't even need to use the fans!
It seems that all modern tech companies want to do nowadays is advertise their latest model of [insert device here] that replaces your old one. The reality is, that the "old device" can still satisfy your needs for far longer than these companies would like. It cuts into their profits when you don't purchase a new device more often than every decade! Keep this in mind when you want to upgrade your phone, your microwave, your toaster, your car...
Whenever you consider throwing away an old laptop as tech waste, consider that you're tossing a potential always-on, accessible-from-anywhere web server. A laptop built to be replaced a decade ago still serving a valuable purpose in 2025! Imagine that.