This script intends to sync near-automatically via git in "tracking" repositories where a nice history is not as crucial as having one.
Found via a link on https://orgmode.org/worg/

Can this function be used to run radioclk http://www.buzzard.me.uk/jonathan/radioclock.html from a GPI pin instead of DCD, DSR, CTS?

With UPS and RTC features, PiSugar2 makes your rpi ready for fast prototyping and product development.

Keep accurate time on a Linux machine based on radio time signals such as DCF77, MSF or WWVB. Found via https://packages.debian.org/stable/net/radioclk
It uses the modem control input signals to monitor the signal from the radio receiver. For a Raspberry pi, where I want to use this, the articles
"Raspberry Pi RTS / CTS Flow Control" https://ethertubes.com/raspberry-pi-rts-cts-flow-control/ and
"Raspberry Pi 3 Hardware Flow Control"  http://www.deater.net/weave/vmwprod/hardware/pi-rts/ will be useful.

Experiments tracking DCF77 and MSF, using amplitude, phase and correlation to measure time with respect to GPS.

The tinyPFA is a Phase Frequency Analyzer, it is a portable, battery operated, two input device with a 4 inch display that can measure very precise frequency and phase differences between the signals applied to both inputs. The input frequency can be any frequency between 1 MHz and 300 MHz. Typical use is to measure the differences between two 10 MHz clocks. The tinyPFA can numerically display the phase and frequency difference, show the measurement in a graph versus time, store the measurements on a SD card inserted into an SD card slot, or send the phase measurements over USB to a PC, running a program such as TimeLab, for further display and processing. Phase and Frequency measurement accuracy is better then 1e-12 divided by the measurement time in seconds with decimation set to 1 Be aware the maximum frequency difference that can be display depends on the measurement time (Tau) and is approximately 0.4 / (Tau in s) so for Tau is 1 s it is 0.4 Hz maximum difference.

"What if documentation really lived in the code?

Docstrings are already there. If some narrative glued them together, we'd be able develop and explore the code along with the documentation due to their physical proximity.

With the simplistic tools provided, one may emphasize the narrative as with Literate Programming, but documentation is generated from code, not vice versa, and there is no support for chunking.

Code is first, code must look pretty, documentation is code."

A python library for calculating Allan deviation and related time & frequency statistics. LGPL v3+ license.

Use https://github.com/aewallin/allantools.git to clone it.

http://www.stable32.com/ appears to be a closed source program (free Windows executable available) used in the frequency stability community.

The Explicit-Formulas Database [for elliptic curves] is joint work by Daniel J. Bernstein and Tanja Lange, building on work by many authors.