Devlog #3
The UI is now functional The encoder scrolls between accounts and I added a full settings menu with brightness control, time sync options, and UTC offset.

Time sync is working over both WiFi and Bluetooth. WiFi NTP connects to pool.ntp.org and syncs in UTC automatically. The Bluetooth side uses GATT Current Time Service which is the same protocol smartwatches use to get time from a phone with no app needed. You just pair and the phone OS pushes the time automatically. The catch with BLE CTS is that it sends local time rather than UTC, so there’s a UTC offset setting in the menu to correct for this.

Codes are still placeholder 000000 until TOTP generation gets wired which will be in next devlog