Knucklehead

Judgement

What it is

Template or starter

What it does

A ZMK firmware keymap for 42-key Corne-style split keyboards, tuned for macOS users with home row modifiers; it has nothing to do with HR.

Adopt it when

You own a Corne-style keyboard running ZMK and want a ready layout to copy.

Watch out

Under active change with sparse docs, and it appears in HR listings only because of the 'hrm' tag for home row mods.

Ready for

Experimental

Built with

C and ZMK

How established

Established: started 3 years ago, no tagged release yet.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Knucklehead → GCC → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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