Just what it says, links to https://github.com/benr/SunType5_ArduinoAdapter
and
https://github.com/xelalexv/suniversal

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.

Crafting Interpreters contains everything you need to implement a full-featured, efficient scripting language. You’ll learn both high-level concepts around parsing and semantics and gritty details like bytecode representation and garbage collection. See also the blog article http://journal.stuffwithstuff.com/2020/04/05/crafting-crafting-interpreters/ of the author, Bob Nystrom.
Found on https://www.hpmuseum.org/forum/thread-17807-post-156535.html#pid156535

Public Lab is a community and a non-profit, democratizing science to address environmental issues that affect people.

Ozone sensor https://www.dfrobot.com/product-2005.html?tracking=60f546f8002be

The paper
https://www.usenix.org/legacy/publications/library/proceedings/sa92/spencer.pdf
sounds like it is worth reading.

A small collection of tools for the X Window System. Found on https://wiki.xxiivv.com/site/catclock.html

Fennel is a programming language that brings together the speed, simplicity, and reach of Lua with the flexibility of a lisp syntax and macro system.

Full Lua compatibility: Easily call any Lua function or library from Fennel and vice-versa.
Zero overhead: Compiled code should be just as efficient as hand-written Lua.
Compile-time macros: Ship compiled code with no runtime dependency on Fennel.
Embeddable: Fennel is a one-file library as well as an executable. Embed it in other programs to support runtime extensibility and interactive development.
Anywhere you can run Lua code, you can run Fennel code.

qutebrowser is a keyboard-focused browser with a minimal GUI. It’s based on Python and PyQt5 and free software, licensed under the GPL.

It was inspired by other browsers/addons like dwb and Vimperator/Pentadactyl.

Plan9 command to insert filters for read and write access to a file. Found via https://marc.info/?l=9fans&m=164529121414777&w=2