Description of the test methods used for SQLite. The statements
 Valgrind is a simulator - it simulates an x86 running a Linux binary. (Ports of Valgrind for platforms other than Linux are in development, but as of this writing, Valgrind only works reliably on Linux, which in the opinion of the SQLite developers means that Linux should be the preferred platform for all software development.)
are interesting, I did not get this from a casual reading of Valgrind's documentation.

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."

Instructions for setting up static websites on GitHub or SourceHut.
Found on Sacha Chua's blog https://sachachua.com/blog/2021/10/2021-10-11-emacs-news/

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

Reference points in Austria where the accuracy of GNSS receivers can be checked.

Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.
Found on https://idiomdrottning.org/matrix-vapor

Found on https://ambrevar.xyz/blog-architecture/index.html
See http://jgkamat.gitlab.io/blog/website1.html for details.
https://ogbe.net/blog/blogging_with_org.html is another example. The article https://ogbe.net/blog/moar_monitors.html describes how X11 and VNC can provide an additional display.

Arguments for personal websites instead of social networks.
TODO: add indieweb tag to the relevant bookmarks.

Nice blog design, inspired by the Tufte Jekyll theme
https://github.com/kmayer/tufte-jekyll
which in turn is based on
https://github.com/edwardtufte/tufte-css which is demonstrated on https://edwardtufte.github.io/tufte-css/
The latter uses CSS, so it should be possible to use it with org-mode.

Instructions for running Firefox as another, less privileged user. Found on https://minnie.tuhs.org/pipermail/tuhs/2017-March/010757.html
In the following post, https://www.qubes-os.org/intro/ was recommended as an improved way.