Penkesu Computer - A Homebrew Retro-style Handheld PC View the Project on GitHub penk/penkesu Penkesu Computer - A Homebrew Retro-style Handheld PC Penkēsu (Japanese: ペンケース) is a retro-style handheld device powered by a Raspberry Pi Zero 2 W, a 7.9 inch widescreen display (1280 x 400 resolution), and a 48-key ortholinear mechanical keyboard. The Design The enclosure of Penkesu Computer is designed