A deep dive into an NSO zero-click iMessage exploit: Remote Code Execution, by Ian Beer and Samuel Groß of Google Project Zero. Incredible.

A Torelli Theorem for Graph Isomorphisms, by Sarah Griffith.

Quantum cryptanalysis, tutorial talk by Daniel J. Bernstein.

Arb is a C library for rigorous real and complex arithmetic with arbitrary precision. Arb tracks numerical errors automatically using ball arithmetic, a form of interval arithmetic based on a midpoint-radius representation.

Heboris C7-EX SDL2, a cross-platform version of the well-known Tetris clone.

Prince of Persia in JavaScript.

Reverse-engineering the Yamaha DX7 synthesizer’s sound chip from die photos, and Yamaha DX7 synthesizer’s clever exponential circuit, by Ken Shirriff.

The Principia Rewrite project rewrites Principia Mathematica in Coq.

RATFOR: Rational Fortran, brought back to life by Arnold Robbins.

The utilization of 44/8: the reason I mapped IPv4 & IPv6, by Antonios A. Chariton.

Loop fission, by Richard Startin. When two separate loops are faster than one.

Cichoń’s diagram is a table of 10 infinite cardinal numbers related to the set theory of the reals displaying the provable relations between these cardinal characteristics of the continuum.

The Analog Thing is a high-quality, low-cost, open-source, and not-for-profit cutting-edge analog computer.

DIY two-ball trackball

Maze Generation In Thirteen Bytes (2012). Ten bytes actually.

Trackers: The Sound of 16-Bit (YouTube).