The custom, split– as the namesake implies — mechanical keyboard has 23 keys on each 10 cm x 10 cm half, and, naturally, a custom keymapping for optimal personal use. Upper and lower PCBs host ...

If you find yourself wishing for even more functionality, you might want to build something like this custom macro keyboard ... software that runs on them. The key to most builds is the 32U4 ...

If you're looking for more control over how your keys feel and sound ... it's easily the most customizable way to build your own custom keyboard without diving into the expensive parts world ...