Includes links to on-line emulators for various unices, ITS and TOPS-20.

Found via http://pinboard.in/u:antifuchs

literate-lisp provides an easy way to use literate programming in Common Lisp language. It extends the Common Lisp reader syntax so a Common Lisp vendor can read org files as Common Lisp source files.

By using this package(literate-lisp), Emacs org mode and Emacs Lisp library polymode, literate programming can be very easy in one org file containing both documentation and source codes, and this org file can interact well with SLIME.

Try this on Linux and find out what is needed to get it under Windows. The US international keyboard mapping is less than ideal, because ' and " are dead keys.

Perl program to convert {dm,free,HP}-42 programs from textual representation to raw files which can be loaded into {dm,free}42.

Nice blog (in appearance, contents and implementation). See https://archive.casouri.cat/note/2018/blog-in-org-mode-revisited/index.html for an update.
An interesting idea for entering mathematical symbols is presented on https://archive.casouri.cat/note/2020/insert-math-symbol-in-emacs/index.html

Work in progress.

GNU Emacs / N Λ N O is a set of configuration files for GNU Emacs such as to provide a nice and consistent look and feel as shown below. It is based on design principles I described in the article "On the design of text Editors" [1] that is available on arXiv. The light theme is based on Material colors [2] and the dark theme is based on Nord colors [3].

The philosophy of nano emacs is to stick as much as possible to vanilla emacs without introducing too much dependencies (or none if possible) and to keep it modular enough. The idea is for users to copy the part they are interested in such as to include them in their own configuration.

[1] https://arxiv.org/abs/2008.06030
[2] https://material.io/
[3] https://www.nordtheme.com/

Main page is http://cowlark.com/cowgol/
It used to support the Apollo Guidance Computer used in the Apollo spacecraft, but I had to remove the code generator while rewriting the compiler and I haven’t reworked the AGC backend.
http://cowlark.com/2019-07-20-cowgol-agc/index.html
The author also ported the Fuzix operating system to the Raspberry π pico.
http://cowlark.com/2021-02-16-fuzix-pi-pico/index.html

His tool https://github.com/davidgiven/narcissus to remap keys might be interesting too.
So is his Forth system http://cowlark.com/fforth/

https://github.com/larsbrinkhoff/its-presentation -
https://github.com/larsbrinkhoff/oscilliscious Vector graphics audio oscilloscope library.
https://github.com/larsbrinkhoff/emacs-history