Welcome! This website is hosted on my home server, a Raspberry Pi 4 Model B. It is running Raspbian Buster Lite, a version of Debian designed for the Raspberry Pi and the web server is currently Lighttpd. You can see this machine in the photo below. Flashy GIF made in Gimp!
There are a few things running on this machine, such as an SDR receiver that sends ADS-B data to FlightRadar24 (this is the USB cable thats plugged in). I also run a personal IRC bouncer for the Quakenet network, using ZNC on the machine, a secondary DNS server for my websites and a few other services. I use a 128GB Micro SD plugged into the USB port on the front via a small adapter for main storage.
It is connected to a 76Mb↓ 19.5Mb↑ fibre internet connection.
Its quite amazing what you can do with the little Raspberry Pi as a server and it uses less power than my router!