Copy the structure of the Adafruit repo, is very nice https://github.com/adafruit/Adafruit_nRF52_Bootloader.

• Add pdf and png of the schematic to the repo.
• Take nice pictures of all the components when they arrive.

You have a lot of tabs open on Firefox with important links related to the project.
Move them to a Markdown and save them in the repository

• Pre-made digikey cart

• Links to the other websites with other parts to buy.

• Maybe pictures of the components

• Cost breakdown.

• Buttons

• Keycaps

• hot swap sockets

• Digikey components

• little rubber feet

• PCB costs on JLC

• Check JLC PCB design rules.
• Make a stand-in for the battery
• Route and reassign pins-to-keys as needed.
• Remember to add cutouts for the nRF antenna
• Add mounting holes for plates
• Leave space for rubber feets.
• Leave cutouts for securing the battery case
• Change LEDs silkscreen to be more informative, also buttons silkscreens
• Re-arrange component silkscreens to be visible.
• Change Reset button to the one in Phil's Lab.
• Add name, version number, instructions to the silkscreen. (Art ?)
• [ ]

And use it to be able to flash ZMK to your keyboard via USB.

This project: https://github.com/adafruit/Adafruit_nRF52_Bootloader
or this project: https://github.com/adafruit/tinyuf2

• tinyuf2 is a bootloader for ESP and STM microcontroller, not for nRF

based on:
https://github.com/ebastler/zmk-designguide/tree/main

• for the battery management
• USB C connector

and using a BT40 fanstel module for the nRF52840 microcontroller

Start with a Coleman DH, and go from there

So that then you can design the 3D printed keycaps

Grab all the 3D models you have done.
Make a full 3D model of the keyboard in blender.
Do an animation like this
Or something like the Macro session of CG Cookie

This will be useful for documentation later

Bottom plane to protect the circuit from shorts
Top plate to protect the battery.
Most likely in black PLA

Use the Make anything multi color print technique to make keycaps with the layout printed on top.

• White for the letters.
• Silver for the modifier.
• Red for the thumb cluster (of maybe only the swap button)