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A split keyboard by @orihikarna with some interesting details.

The firmware is now settled down so @orihikarna called his first self-designed keyboard to be finished.

The keyboard layout looks like a hermit crab, so I named it Hermit – @orihikarna.

No documentation or build log, only a thread of tweets. You can find the source files in this GitHub repo:


  • split with 60 keys
  • Thumb keys placed a bit further (pressed with the first joint)
  • Choc V2 browns (17.4x16.8mm)
  • ARM
  • I2C I/O expander (with a Type-C cable)


Btw the layout, which may be weird at first, is logically derived from ortholinear:

Published on Fri 24th Sep 2021. Featured in KBD #45 (source).


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