Zepir
This is an intriguing project: it’s a full QWERTY keyboard plus a screen that plugs into a Raspberry Pi to make a fully functional computer. Although its small form factor lends itself to the Raspberry Pi Zero, its creator Peter Misenko tells us that it’ll work just as well on a Raspberry Pi 4.
What’s great about this project (and Peter tells us that it’s still a work in progress) is that it’s designed to be a single-component build. The board, keys, and screen all come out of the factory in one piece