Interesting blog, some example articles:
Sandcastles and skyscrapers (VMS vs Unix) https://liam-on-linux.dreamwidth.org/#entry-86240
history of MS-DOS https://liam-on-linux.dreamwidth.org/#entry-85836
I want to see AROS, MorphOS or Haiku on the Raspberry Pi  https://liam-on-linux.dreamwidth.org/#entry-83201
Found on the TUHS mailing list.

How to enable modifier keys in X11.
https://emacsnotes.wordpress.com/2022/08/16/who-stole-c-c-and-possibly-other-keys-from-my-emacs/ looks interesting too.

We currently support the processing of:

the United States' Global Positioning System (GPS);
the Russian GLONASS system (GLONASS);
the European Union's Galileo system (Galileo);
the Chinese Navigation Satellite System (BeiDou);
the Japanese QZSS develop system (QZSS).
We are actively developing Ginan to have the following capabilities and features:

Precise Orbit & Clock determination of GNSS satellites (GNSS POD);
Precise Point Positioning (PPP) of GNSS stations in network and individual mode;
Real-Time corrections for PPP users;
Analyse full, single and multi-frequency, multi-GNSS data;
Delivering atmospheric products such as ionosphere and troposphere models;
Servicing a wide range of users and receiver types;
Delivering outputs usable and accessible by non-experts;
Providing both a real-time and off-line processing capability;
Delivering both position and integrity information;
Routinely produce IGS final, rapid, ultra-rapid and real-time (RT) products;
Model Ocean Tide Loading (OTL) displacements.
The software consists of two main components: Network Parameter Estimation Algorithm (PEA) and Precise Orbit Determination (POD).

The General Mission Analysis Tool (GMAT) is an open-source space mission analysis tool. Found via https://destevez.net/2022/09/more-qo-100-orbit-determination/

Gitea is a community managed lightweight code hosting solution written in Go. It is published under the MIT license.
Try it once I have an interesting public repository.

Open source hardware design for a Hardware Attached on Top (HAT) GNSS receiver based on Septentrio Mosaic modules.
Nice description of some circuit and layout details.

OpenSSL software - a robust, commercial-grade, full-featured toolkit for general-purpose cryptography and secure communication.

Found via https://www.tuhs.org/pipermail/tuhs/2022-September/026476.html

This project allows you to use various hardware security devices to operate GPG and SSH. Instead of keeping your key on your computer and decrypting it with a passphrase when you want to use it, the key is generated and stored on the device and never reaches your computer. Read more about the design on https://github.com/romanz/trezor-agent/blob/master/doc/DESIGN.md

Currently TREZOR One, TREZOR Model T, Keepkey, Ledger Nano S, and OnlyKey are supported.