Pi computed to 62,831,853,071,750 digits at Fachhochschule Graubünden.

Injection Attacks Reloaded: Tunnelling Malicious Payloads over DNS, by Philipp Jeitner and Haya Shulman.

Skateboard Tricks and Topological Flips, by Justus Carlisle, Kyle Hammer, Robert Hingtgen, and Gabriel Martins. “We study the motion of skateboard flip tricks by modeling them as continuous curves in the group SO(3) of special orthogonal matrices. We show that up to continuous deformation there are only four flip tricks.”

RBAC like it was meant to be, by Avery Pennarun. “It’s hard to know precisely what people are referring to when they talk about mandatory access control, other than the one constant: it is predictably annoying to use.”

Mafs provides React components for math visualization.

Learning APL, free book by Stefan Kruger.

Rappel is a pretty janky assembly REPL.

Box64 lets you run x86_64 Linux programs (such as games) on non-x86_64 Linux systems, like ARM.

Make shortest cables in your rack using simulated annealing

When was the first commutative diagram?

Introducing the PineNote, a high-end 10.1” e-ink device based on the powerful Quartz64 single board computer.

ML 2021: A metalanguage for multi-phase modularity (YouTube), by Jonathan Sterling and Robert Harper.

One Glitch to Rule Them All: Fault Injection Attacks Against AMD’s Secure Encrypted Virtualization, by Robert Buhren, Hans Niklas Jacob, Thilo Krachenfels, and Jean-Pierre Seifert.

HTTP/2: The Sequel is Always Worse, by James Kettle. “Through novel tooling and research, I’ve shown that many websites suffer from serious HTTP/2 request smuggling vulnerabilities thanks to widespread HTTP/2 downgrading.”

Syndicated Actors for Conversational Concurrency, by Tony Garnock-Jones.

Kind, a minimal, efficient and practical proof and programming language.

Tilck, a Tiny Linux-Compatible Kernel for x86.

Singeli, a highly flexible domain-specific language for building SIMD algorithms.

The PDP-11 BASIC Analysis project is an effort to disassemble and analyse line-by-line the operation of the PDP-11 BASIC code.

Homemade 1000+ transistor array chip, by Sam Zeloof.

Jeff Mills Exhibitionist 2 Mix 3 (YouTube), 11 minutes live on a Roland TR-909.

nbb, a Babashka-like tool for Node.js, using ClojureScript.

Gotify, a simple server for sending and receiving messages.

Egglog: a Prolog Syntax for Egg, by Philip Zucker.

ssl-cert-check, a simple script to check SSL certificate expiration dates.

Passerine is a small, concise, extensible functional scripting language, powered by a VM written in Rust.

Compiling Rust is NP-hard, “exhaustiveness checking performed by the Rust compiler on match patterns is a superset of the SAT problem.”

Goomics, comics about Google by Manu Cornet.

Alternative Method of Solving Quadratic Equations, by Po-Shen Loh. (or how to use the pq-formula without learning it by heart :D)