The FGI-GSRx software receiver has been extensively used as a research platform for the last one decade in different national and international Research and Development (R&D) projects to develop, test and validate novel receiver processing algorithms for robust, resilient and precise Position, Navigation and Timing (PNT). At present, the FGI-GSRx can process GNSS signals from multiple constellations, including GPS, Galileo, BeiDou, GLONASS, and NavIC. The software receiver is intended to process raw Intermediate Frequency (IF) signals in post-processing. The processing chain of the software receiver consists of GNSS signal acquisition, code and carrier tracking, decoding the navigation message, pseudorange estimation, and Position, Velocity, and Timing (PVT) estimation. The software architecture is built in such a way that any new algorithm can be developed and tested at any stage in the receiver processing chain without requiring significant changes to the original codes.

This repository documents how to implement custom FIDO2 extensions. It contains supplementary material to our paper at ETAA 2021. We describe how to implement extensions on all parts of the FIDO2 stack: On the relying party (website), on the client (browser), and on the authenticator (hardware token).

Found via https://positive.security/blog/find-you and https://github.com/seemoo-lab/openhaystack

A password manager. It's a lot like pass ("the standard unix password manager") - which I have been using up 'til now - but it uses age instead of GPG to do the heavy lifting. Written in Ruby

Found on https://www.rtl-sdr.com/frugal-radio-testing-a-loop-on-ground-antenna-with-an-airspy-hf-discovery/

The LaTeX project maintains and develops the LaTeX typesetting system. Found via https://www.tuhs.org/pipermail/tuhs/2022-January/025113.html

Kalibrate, or kal, can scan for GSM base stations in a given frequency band and can use those GSM base stations to calculate the local oscillator frequency offset.

Description of the test methods used for SQLite. The statements
 Valgrind is a simulator - it simulates an x86 running a Linux binary. (Ports of Valgrind for platforms other than Linux are in development, but as of this writing, Valgrind only works reliably on Linux, which in the opinion of the SQLite developers means that Linux should be the preferred platform for all software development.)
are interesting, I did not get this from a casual reading of Valgrind's documentation.

HamSCI, the Ham Radio Science Citizen Investigation, is a platform for the publicity and promotion of projects that are consistent with the following objectives:

Advance scientific research and understanding through amateur radio activities.
Encourage the development of new technologies to support this research.
Provide educational opportunities for the amateur community and the general public.
HamSCI serves as a means for fostering collaborations between professional researchers and amateur radio operators. It assists in developing and maintaining standards and agreements between all people and organizations involved.

There are Valgrind tools that can automatically detect many memory management and threading bugs, and profile your programs in detail. You can also use Valgrind to build new tools.

Introduction to age, a “simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.”
The source code can be found at https://github.com/FiloSottile/age and the german Wikipedia has an entry https://de.wikipedia.org/wiki/Actually_Good_Encryption