The Raspberry Pi is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation. It is widely used in many areas, such as for weather monitoring, etc. because of its low cost and high portability.
- Pi-hole is a Linux network-level advertisement and Internet tracker blocking application which acts as a DNS sinkhole and optionally a DHCP server, intended for use on a private network.
- Twister OS is built on the official Raspbian Pi OS with themes designed to appear like operating systems they are themed after, but they are no operating systems by themselves.