Open-source 53 keys alice-style ortho keyboard. Features hotswap switches, a rotary encoder, and OLED screen.

• 53 Hotswap sockets
  • https://www.aliexpress.com/item/4001051840976.html
• 54 SMD 1N4148 diodes
  • https://www.aliexpress.com/item/32849879904.html
• Teensy 2.0 microcontroller
  • https://www.aliexpress.com/item/4000829915634.html
• a rotary encoder
  • https://www.aliexpress.com/item/10000056483250.html (the 15mm half handle)
• 11x 5mm m2 standoffs
  • https://www.aliexpress.com/item/1005004564012666.html
• 11x m2 nuts
• 11x short m2 screws (8-10mm)
• 53 switches of your choice
• any set of preonic/ortho keycaps
  • I used https://www.aliexpress.com/item/1005003294964787.html
• recommended: a 3d printer for the case and plate
• optional: 128x32 OLED screen breakout board
  • https://www.aliexpress.com/item/32850288143.html
• optional: a very short ws2812b led strip (like 5 leds)
  • https://www.aliexpress.com/item/2036819167.html

It's pretty straightforward.

• get the PCB printed at JLCPCB or your supplier of choice.
• solder the teensy on the underside with its header pins.
• solder the diodes and hotswap sockets.
• solder the encoder and oled screen on the top side of the board.
• print the case, and punch open the screw holes. If you printed the 2 separate pieces, put them on a flat surface like glass, and glue them together with super glue.
• push the nuts in the holes from the bottom, and screw in the standoffs.
• put the PCB in the case and screw it in.
• print the plate and install it along with the switches.
• done!

You can clone my fork of vial (https://github.com/Pimentoso/vial-qmk) and compile the keymap for this keyboard with make pimentoso/avante53:vial Or you can just flash the compiled binary you can find in the firmware folder, using QMK toolbox or a tool of your choice. Then you can use vial to edit the keymap.