Sweep

The special phrase you want is "chord" A stenographer's keyboard is a special kind of chord keyboard for spoken English. There are other kinds of chord keyboards, but look into those. For example: - https://www.charachorder.com/ - https://github.com/davidphilipbarr/Sweep Related: https://news.ycombinator.com/item?id=30515912

See also the Soufflé, a further derivative which makes the vertical stagger more aggressive as has become the fashion for most newer ergo boards: https://github.com/climent/SouffleKeyboard If you go any further down the ergo rabbit hole you'll probably end up with fewer keys than that though, typically 34-36 in total, e.g: https://github.com/davidphilipbarr/Sweep https://github.com/pashutk/chocofi

A 34-key split keyboard called the Ferris Sweep: https://github.com/davidphilipbarr/Sweep With a custom keymap, but still using QWERTY. Ben Vallack on YouTube has some great videos on minimalist layouts: https://www.youtube.com/watch?v=8wZ8FRwOzhU

Adjacent: https://github.com/davidphilipbarr/Sweep Sweep is a 34-key split PCB design that you can print and assemble yourself. Happy user for over 3 years.

Split ergonomic keyboards have wrapped all the way around to the simplest possible solution - they have so few keys that each one can simply be connected directly to its own dedicated pin on the microcontroller, no diodes or matrix scanning required. e.g. the Ferris Sweep: https://github.com/davidphilipbarr/Sweep That has 17 keys per side, which is the most you can do with the 18 GPIOs broken out by the popular Pro Micro modules, but with something like the RP2040 you could scale it up to 29 keys per side if desired.