A nontechnical reminiscence written in 1988 (on the occasion of unplugging Columbia University's last DECSYSTEM-20) for a Digital Press book that was to commemorate DEC's 36-bit machines with a series of articles, but was never published.

Adam Sampson's blog, found via https://www.tuhs.org/pipermail/tuhs/2017-September/012094.html

Found on https://www.tuhs.org/pipermail/tuhs/2017-January/009420.html

A version of a Unix 5th (and 6th) Edition filesystem for Linux. It is read only, and was written for Linux 2.0 on an x86 and so will require a little work to install on other systems and newer kernels, but it is fun to be able to mount old disk images.

Information  about a macroassembler for pdp-11 running v7 unix.

Description of tape archive and date formats in early versions of Unix.

This repository contains a port of the "Ritchie C compiler" to the TI990 series processors, in particular the 9995 and 99105 chips. The port is currently fairly complete; only floating point operations remain unported. Other tool chain components (assembler, linker, etc.) are also provided.

The long term goal is to run ancient unix on these chips. As a first stepping stone on that journey, a port of the original 1983 version of the Xinu system has already been completed. The source for that is also in this repository.

Announced on TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2021-February/023225.html

MiSTer is an open project that aims to recreate various classic computers, game consoles and arcade machines, using modern hardware. It allows software and game images to run as they would on original hardware, using peripherals such as mice, keyboards, joysticks and other game controllers.
Found via the TUHS mailing list
https://www.tuhs.org/pipermail/tuhs/2021-February/023014.html

Interesting software, such as
unifdef selectively removes C preprocessor conditionals. My version of this program now shipped by all the BSDs (including Mac OS X) and is used by the Linux kernel build system.
regpg safely stores server secrets using gpg, so you can keep them in version control.
picoro - tiny coroutine implementations in pure C. I wrote an accompanying article, coroutines in 20 lines of standard C.
Counting the days - tiny routines for converting Gregorian dates into linear counts, like Julian day numbers or Unix time_t. The date of the count - a small routine for converting linear day counts into Gregorian dates.
https://dotat.at/@/2016-04-22-synergy-vs-xmodmap-fight.html Why you can't use xmodmap to change how Synergy handles modifier keys
https://dotat.at/@/2023-05-26-whence-time.html Where does my computer get the time from?
https://dotat.at/@/2023-08-04-unix69.html a neat keyboard map
https://dotat.at/@/2024-01-29-four-point-egg.html construct an egg shape with straightedge and compass
His log of links, https://dotat.at/:/ which I found on the TUHS mailing list is also worth reading. He explains a bit about this log on http://dotat.at/.