Enthusiast Builds Ergonomic Keyboard with Scroll Wheels and TrackPoint

A detailed review of the homemade wireless split keyboard PSKeeb 5 has appeared on the YouTube channel Tinker & Hack. The 36-key device is focused on ergonomics and portability, and its design and firmware will be completely open-source.

PSKeeb 5 is the fifth version of a keyboard the creator has been developing to reduce strain on the hands during long work sessions. The 3D-printed case has a split design with an adjustable tilt angle. Each half is equipped with a programmable scroll wheel under the thumb, and the right side also features a strain gauge joystick, analogous to the TrackPoint on Lenovo ThinkPad laptops, which can be used for cursor control.

Wireless connectivity for both halves and communication with the computer is handled by the ZMK firmware, known for its low power consumption. The key layout and functions are customizable via the ZMK Studio web interface, including over a wireless connection. Despite having only 36 keys, additional actions are emulated using an Fn layer.

The creator plans to publish all necessary documentation for building the keyboard on GitHub under an open license, including 3D models and configuration files, allowing anyone to replicate or modify the design. The development of custom ergonomic keyboards remains a popular pursuit among enthusiasts, and open-source projects like PSKeeb 5 make such solutions more accessible to a wider audience.

The enthusiast-developed PSKeeb 5 showcases the trend toward deep customization and ergonomics in the DIY peripherals segment. At the same time, major manufacturers are experimenting with other radical approaches. Recently at CES 2026, Lenovo presented a concept for a fully autonomous Self-Charging Kit—a keyboard and mouse powered by room light.