Aha. That all makes perfect sense. I wouldn’t personally have so much duplication, though, and get shift & modkeys on the thumbs to make easy combos, but it’s fine if you want them elsewhere. Do you use function keys that often? I just realised I use them so much I forgot to setup a layer for them, but that at least seems like it could go on one of the pinky keys. And a rotary encoder there would make heaps of sense.

That’s quite an interesting layout. Is the vertical thumbkey easy to press? And what’s the right arrow you’ve got in both thumb clusters? Does having a letter key on the thumb feel natural?

I have two questions:

1. How useful do you find the encoder? All the other keyboards I’ve seen with encoders seem badly placed, but is yours close enough to the resting thumb position that you can use it without moving from the home row?
2. Where did you get the carrying case? I’ve got a corne, but really just leave it at home and use the laptop keyboard when I’m elsewhere because I don’t like just leaving it loose in my bag.

I’m not OP, and one-haned keyboards definitely exist (I can’t remember the name, but I think there’s even an 8-key complete layout). However, since they said 34-key split, I’d assume the other half’s in the bag, or otherwise offscreen.