Behold. Here are some really basic PCBs that only support kailh choc low profile switches.
Currently they mostly have 36 keys (or less) which I consider to be as small as a keyboard can be without resorting to chording or other shenanigans.
Proceed with caution, and a little apprehension.
The splits are heavily influenced by the following keyboards, and actually based on foostan's corne-light pin layout and pcb.
- 5plit
- Gergoplex
- crkbd
- Kyria
- Jian/Jorne/Jorian
- Ferris
- Squiggle
These are all supposed to be used caseless and have no holes for cases or anything fancy.
Most 36 key split pcbs can use the crkbd firmware, but not the ones with no diodes, these all use the cradio firmware, maybe such things can be found here. There is also a stripped back 36 key firmware called cranorm, which can be used instead of the crkbd firmware.
Aren't all the splits basically the same board with the keys shuffled around? Yes.