I wanted the most accurate clock possible in my mini rack. Nobody made one, so I made my own, using a Raspberry Pi Pico and a Waveshare Pico GPS HAT: https://www.youtube.com/watch?v=E5qA4fgdS28


@geerlingguy I have bookmarked this. I am going to need usec level synchronization across multiple devices for my "#protonpack" telemetry work.
But I first need to get the first device working reliably.