Since the boards have been sent off to be fabricated there won't be any updates till they get back. So I've uploaded the final source code and KiCAD project to the files section.

There are files for two versions of the project in the files section: v1 designates the breadboard-friendly version with Adafruit display and an RTC module, v2 is the final version with bare components and a custom PCB.

V2

Source Code for Arduino IDE: https://cdn.hackaday.io/files/12382529751488/v2_sourcecode_arduino_clock.zip

KiCAD Project: https://cdn.hackaday.io/files/12382529751488/v2-arduino-clock.zip

Schematic PDF: https://cdn.hackaday.io/files/12382529751488/arduino_clock_v2_schematic_FINAL.pdf

V1 (old simple version)

Source Code for Arduino IDE: https://cdn.hackaday.io/files/12382529751488/clock_sevenseg_ds1307.ino

Frizzing: https://cdn.hackaday.io/files/12382529751488/7segclock_v1.fzz

KiCAD Schematic: https://cdn.hackaday.io/files/12382529751488/arduino-clock-v2-001.zip