https://arstechnica.com/gadgets/2022/02/diy-handheld-pc-uses-mechanical-keyboard-game-boy-pieces-raspberry-pi/

If someone is using a handheld PC these days, it's almost certainly a smartphone. But a Raspberry Pi has a way of bringing out an enthusiast's retro side. Add in some old console parts and a true mechanical keyboard, and you've got a DIY PC that can fit in the palm of your hand.

Called the Penkesu and shared via GitHub by a user known as Penk Chen, the project is described as "a homebrew retro-style handheld PC." It uses a 7.9-inch touchscreen with a 400 x 1,280 resolution and a Raspberry Pi Zero 2 W. Other electronic parts include a 3.7 V Li-Po battery and Adafruit PowerBoost 1000C for power.