Description of the various programs involved in sending and receiving e-mail, as of 2012.

Failed attempt to build sbcl on Android using ecl, which exists both as inofficial Termux package and as Temux-independent Android app
https://gitlab.com/eql/EQL5-Android/
But I believe that ECL only provides a byte compiler since native compilation is done via C.
See also https://www.christopherbiscardi.com/2014/1/10/common-lisp-on-android-running-the-mocl-android-example

While this blog article is about a new feature of the Scheme-based Guix Linux package manager, it contans the following interesting observation about erroneous shell settings: "it’s not uncommon for the shell to mess up with the whole environment. Why? Because, contrary to documented practice, it’s quite common for users to define or override environment variables in the startup files of non-login shells, ~/.bashrc for Bash, ~/.zshrc for Zsh. Instead, environment variable definitions should go to the startup file of login shells—~/.bash_profile, ~/.profile, or similar. But let’s face it: it’s a subtle distinction that few of us know or care about."

Footnotes can be collected in the entry where they are referred to rather than in a central place.

A very simple and fully functional Raspberry Pi-based KVM over IP that you can make with your own hands without any soldering!

Article from Tom Duff, August 1987
Executable files in the Ninth Edition of the UNIX system contain small amounts of unused space, allowing small code sequences to be added to them without noticeably affecting their functionality. A program fragment that looks for binaries and introduces copies of itself into their slack space will transitively spread like a virus. Such a virus program could, like the Trojan Horse, harbor Greeks set to attack the system when run by sufficiently privileged users or from infected set-userid programs.

An experimental asynchronous SDR runtime for heterogeneous architectures that is:
- Extensible: custom buffers (supporting accelerators like GPUs and FPGAs) and custom schedulers (optimized for your application).
- Asynchronous: solving long-standing issues around IO, blocking, and timers.
- Portable: Linux, Windows, Mac, WASM, Android, and prime support for embedded platforms through a REST API and web-based GUIs.
- Fast: SDR go brrr!
Found on https://www.rtl-sdr.com/futuresdr-an-async-sdr-framework-implemented-in-rust/

Development version of a sketching tool.
GTK (on Linux) and librsvg support compiled in Emacs are required.

Critical review of some of the design choices made in the cryptographic tool 'age'.
There are other interesting articles, such as the three-part series
https://neilmadden.blog/2018/11/14/public-key-authenticated-encryption-and-why-you-want-it-part-i/
https://neilmadden.blog/2018/11/26/public-key-authenticated-encryption-and-why-you-want-it-part-ii/
https://neilmadden.blog/2018/12/14/public-key-authenticated-encryption-and-why-you-want-it-part-iii/
and
https://neilmadden.blog/2016/09/13/critical-thinking-for-software-engineers