Found in https://www.tuhs.org/pipermail/tuhs/2018-February/014546.html

F´ (or F Prime) is a software framework for the rapid development and deployment of embedded systems and spaceflight applications. Originally developed at NASA’s Jet Propulsion Laboratory, F´ is open-source software that has been successfully deployed for several space applications. It has been used for but is not limited to, CubeSats, SmallSats, instruments, and deployable.

Check the accuracy of your computer's clock. Found via https://lists.dyne.org/lurker/message/20210621.225323.41fc8a46.en.html, where the following recipe to adjust the time on a unix system is presented:
 date --rfc-3339=ns && \
 date --rfc-3339=ns -s '+0.096 seconds' && \
 date --rfc-3339=ns
where the string after -s shall be replaced by the report from time.is

Another blog using org-mode. Recommends https://ambrevar.xyz/blog-architecture/index.html but that produces a 404 error as of 2023-05-12.

Who is peeking over your shoulder while you work, watch videos, learn, explore, and shop on the internet? Enter the address of any website, and Blacklight will scan it and reveal the specific user-tracking technologies on the site—and who’s getting your data. You may be surprised at what you learn.

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

The book reviews on https://catonmat.net/top-100-books-part-eight are short, but cover many interesting books.

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

Need to encode, transmit, or store encrypted or signed data? saltpack is a streamlined, modern solution, designed with simplicity in mind. It is easy to implement & integrate. We've made few crypto decisions and instead leave almost all of the heavy lifting to the NaCl library.

saltpack is a binary message format, encoded using the MessagePack format. Messages are broken up into reasonable (1MB) chunks, over which regular NaCl operations are performed. We have taken pains to address many of the shortcomings of current message formats: (1) only authenticated data is output; (2) repudiable authentication is used wherever possible; (3) chunks cannot be reordered or combined with other transmissions; (4) the public keys of senders and recipients can be hidden; and (5) message truncation is detectable.

Implementations in Go and Python are available at https://saltpack.org/implementations  The format is used by https://keybase.io/

Found on https://ssd.eff.org/en/module/how-delete-your-data-securely-linux