14 by 4 Planck style keyboard built from the ground up using all 1U keys designed to be very low profile at ~17.5mm tall.

Powered by a Raspberry Pi RP2040 based Pro Micro chip or Atmega32U4 based Pro micro chip, PCB is compatible with both and has an optional reset switch and 0.91" OLED slot as well as jumpers for 5V pins on RP vs Atmega32U4 Pro Micro boards.

Software used is QMK,

QMK files - https://github.com/ToastyAWF/Planck56

Pinout for if you want to do your own code -

RP2040 Pro Micro

C1, C2, C3,  C4,  C5,  C6,  C7

GP0, GP1, GP29, GP28, GP27, GP26, GP22

R1,  R2,  R3,  R4, R5, R6, R7, R8

GP20, GP23, GP21, GP9, GP8, GP7, GP6, GP4

ATMEGA32U4 Pro Micro

C1, C2, C3,  C4,  C5,  C6,  C7

D3, D2, F4, F5, F6, F7, B1

R1,  R2,  R3,  R4, R5, R6, R7, R8

B3, B2, B6, B5, B4, E6, D7, D4