Found via the Emacs wiki https://www.emacswiki.org/emacs/Git
https://snarfed.org/2014-02-09_the-paperless-office-arrived-and-no-one-noticed

The RAN # function of HP-11C and -15C computes
 x_{i+1}=(33(29⋅2010667⋅x_i+131⋅449⋅641)) mod 10^{10}

Tools to inspect certificates, test APIs of A-Trust, the provider of signature services such as "Handysignatur" and "ID Austria".

Run the 9front variant of the plan9 operating system in the browser. Mentioned on the 9fans mailing list
https://marc.info/?l=9fans&m=173906659913041&w=2

"A Notebook system based on Emacs borrowing from existing config files. This system works from a single org file as an attempt to be as easy as possible for non-emacs users. It handles analyses in any language supported by org and through any server with a ssh interface. Since, its contents (an org file) are automatically rendered in Github or similar, it is trivial to share analyses results with reviewers and auditors, thus providing a way for transparent review/auditing of statistical analyses. This configuration provides a more complete set of functionality than jupyter, with less hassle."
Found on Sacha Chua's blog https://sachachua.com/blog/2025/02/2025-02-03-emacs-news/

Useful key bindings for Emacs on Android.
Found via the Emacs wiki https://www.emacswiki.org/emacs?search=%22EmacsOnAndroidLinks%22

The apparent contradiction between quantum mechanics, where the von Neumann entropy stays constant and the second law of thermodynamics can be resolved by using Shannon entropy.
F. Meier et al., Emergence of a Second Law of Thermodynamics in Isolated Quantum Systems, PRX Quantum 6, 010309 (2025). https://doi.org/10.1103/PRXQuantum.6.010309

The Ramanujan Machine project is an artificial intelligence project that specializes in automated conjecture generation in number theory. The project was described in detail in the paper "Generating conjectures on fundamental constants with the Ramanujan Machine" by Gal Raayoni, Shahar Gottlieb, Yahel Manor, George Pisha, Yoav Harris, Uri Mendlovic, Doron Haviv, Yaron Hadad, and Ido Kaminer. The paper, which appeared in Nature in 2021, gives several examples of automatically generated Ramanujan-style conjectures. https://www.ramanujanmachine.com/

Found via the Postmarket OS wiki https://wiki.postmarketos.org/wiki/User:MartijnBraam

Sxmo is a minimalist environment for Linux mobile devices.
Mentioned on the Plan 9 mailing list https://marc.info/?l=9fans&m=173750905832704&w=2