This is the most complicated keyboard I've ever designed and built so far:

• Custom hot swappable PCB built around an nrf52 module, all components smd mounted, no RGBs.
• Power/data through usb-c but the main goal is to use it wirelessly over BLE
• Brass plate with flex cuts
• The body is made of two black anodized CNC'd aluminum parts that are bolted together
• The star of the show is an outrageous Grayhill 67C joystick, that doubles up as a push button rotary encoder. The Joystick cap is modeled after a fluted Davies 1900h knob, but with a skirt to make it more joystickable (also made out of black anodized aluminum).
• Zilent V2 switches
• SA keycaps in cream

I have a small USB HID listener installed on my Mac that is controlled by the joystick and then relays the instructions to my pan/tilt camera mount.