An open source implementation of SCCS, found via https://www.tuhs.org/pipermail/tuhs/2022-June/025898.html
The comparison to RCS on http://sccs.sourceforge.net/sccs_vs_rcs.html appears to be one-sided, but then I am probably biased towards RCS, which was the first version control software I have used.
http://sccs.sourceforge.net/sccs_invention.html sounds like an interesting read.
The last message on the mailing list https://sourceforge.net/p/sccs/mailman/sccs-devel/?viewmonth=201510 I found had been written 2015-10.
According to https://de.wikipedia.org/wiki/J%C3%B6rg_Schilling, the author Jörg Schilling passed away on 2021-10-10.
TODO: find out the license

Found on Jamie Zawinsky's blog https://www.jwz.org/blog/2016/10/export-termaaa-60/#comment-169515

Interesting review of the Raspberry π 2 W, found via a link on Jamie Zawinsky's blog
https://www.jwz.org/blog/2018/12/advanced-linux-sound-architecture/#comment-195132
See also the https://ownyourbits.com/2019/02/02/whats-wrong-with-the-raspberry-pi/

ISLisp in JS/Go: Standards-compliant Lisp smaller than Common-Lisp.
Note that the on-line JavaScript version does not handle #x prefixes correctly.
Integers are also limited to 31 bit:
(expt 2 31) => -2147483648
in contradiction to https://islisp-dev.github.io/ISLispHyperDraft/islisp-v23.html#integer_class

Instructions for running Mini-Unix http://www.tavi.co.uk/unixhistory/mini-unix.html on an emulated pdp-11 using a Raspberry pi pico.

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