How and why I jailbroke my Kindle, great summary by allejo. Using KOReader is so much nicer anyway.

Tiny Lua Compiler (TLC) is a complete Lua 5.1 compiler written in pure Lua.

MilaDB, a zero dependencies, embedded, immutable, history-aware datalog database written in Clojure.

Kripke and Beth Semantics in Lean, by Callan McGill.

How The Heck Does Shazam Work?, by Shri Khalpada.

Making Ferrofluid (?) from OTC (?) Materials

Rediscovering the Handcart, by Kris De Decker and Kozimo.

DOGMA 25, a new vow of chastity for making films.

Porting Mac OS X to the Nintendo Wii, by Bryan Keller.

Debunking zswap and zram myths, by Chris Down.

Solo5, a sandboxed execution environment for unikernels.

gutd, a WireGuard Traffic Obfuscator using TC/XDP eBPF.

Router Flow Monitor is an eBPF-based network flow analysis agent for Linux routers.

constmap, a fast string to int lookup in Go using binary fuse filters. By Daniel Lemire.

Uses for nested promises, by James Coglan.

But what about K?, Tony Zorman looks at Arthur Whitney’s k/simple.

U+237C ⍼ is Azimuth, the riddle about this glyph is finally solved.

Rack-mount hydroponics, by Salman Aljammaz.

The Accursèd Alphabetical Clock, by Ryan Bateman.

Running Your Own AS: BGP on FreeBSD with FRR, GRE Tunnels, and Policy Routing, by Christian Hofstede-Kuhn.

RE#: how we built the world’s fastest regex engine in F#, by Ian Erik Varatalu.

MeowScript is a reactive, module-based programming language with spreadsheet semantics. Suitable for embedded programming. By David Pollak.

Optimal Caverna Gameplay via Formal Methods, by Stephen Diehl. “The model covers all 2,880 possible 2-player game setups (144 card orderings times 20 harvest marker placements). The main result is that furnishing rush is the weakly dominant strategy.”

Gwtar: a static efficient single-file HTML format, mad hacks by Gwern.

OldUnreal Linux Installers, play Unreal Gold, Unreal Tournament: GOTY, and Unreal Tournament 2004 for free.

H-Bomb: A Frank Lloyd Wright Typographic Mystery, by Paul Lukas.

x86 CPU made in CSS, by Lyra Rebane.

Best gas masks, according to The Verge. “The Verge consulted journalists who covered the Portland protests in 2020, where federal and local forces regularly used tear gas against protesters over the course of four months.”

BLUE is an acronym for Build Language User Extensible. It is a self-hosting build-system fully written in Guile.

Tiny Model Checker: Systematic concurrency exploration in a few lines of Scheme, by db7.

Penrose, “Create beautiful diagrams just by typing notation in plain text.”

Cryptography 30 years apart: Ascon on an HP-16C

JSONata is a lightweight query and transformation language for JSON data.

Hel, a Helix Emulation Layer for Emacs.

Reactive jQuery for Spaghetti-fied Legacy Codebases (or When You Can’t Have Nice Things) (2020), by Meredith Matthews.

Koyaanisqatsi In Five Minutes, by Wyatt Hodgson.

The Evolution of a Lean Programmer

The Next Thing Will Not Be Big, says Glyph.

UNIX v4 in your browser.

wpex is a relay server designed for WireGuard, facilitating NAT traversal without compromising the end-to-end encryption of WireGuard.

BLAKE2s Hashing Accelerator: A Solo Tapeout Journey, by Julia Desmazes.

Pulling a New Proof from Knuth’s Fixed-Point Printer, by Russ Cox.

Stop Forwarding Errors, Start Designing Them in Rust.

If a Tree Falls: The trial of the Sycamore Gap killers, by Rosa Lyster.

Chess Roguelike Prototype, inspired by Slay the Spire.

Make 45 groups of 45!

FreeBSD 15.0 has been released

ML-KEM Mythbusting, by Sophie Schmieg.

Schubfach: The smallest state-of-the-art double-to-string implementation, by Victor Zverovich.

A Very Fast 64–Bit Date Algorithm, by Ben Joffe.

moss is a Unix-like, Linux-compatible kernel written in Rust and Aarch64 assembly.

The stack circuitry of the Intel 8087 floating point chip, reverse-engineered, by Ken Shirriff.

Wanix, a virtual environment kit for the local-first web, inspired by Plan 9.

Advent of Compiler Optimisations 2025, by Matt Godbolt.

My favourite small hash table

An unfinished Pompeian construction site reveals ancient Roman building technology, by Ellie Vaserman, James C. Weaver, Claire Hayhow, Kristin Bergmann, Celestino Grifa, Roberto Scalesse, Valeria Amoretti, Antonino Russo, Gennaro Iovino, Gabriel Zuchtriegel, and Admir Masic.

APL387 Unicode, a redrawn and extended version of Adrian Smith’s classic APL385 font with clean rounded look. By Madeline Vergani. Supports all BQN characters too.

World’s Most Stable Raspberry Pi? 81% Better NTP with Thermal Management, by Austin Pivarnik. “What if I could keep the CPU at a constant temperature?”

tv.garden, watch TV channels all across the globe.

I Want You to Understand Chicago, by aphyr. ICE is in full action.

In praise of dhh, long essay by Filipa Mendonça-Vieira.

Cloudflare outage on November 18, 2025, post-mortem by Matthew Prince.

Life as a Terrorist: Uncovering my FBI file (2013), by William T. Vollmann. “Reading one’s FBI file is rarely pleasant. The Unamericans do not snoop into our lives for the purpose of awarding us medals.”

Control structures in programming languages: from goto to algebraic effects, new book by Xavier Leroy.

The Bernoulli Manifesto, by Peter Luschny.

6 years after too much crypto: Test of time passed, by JP Aumasson.

Sōzu is a lightweight, fast, always-up reverse proxy server, written in Rust.

EPSON MX-80 Fonts, by Michael Walden.

An Asbestos-Bound, Fireproof Edition of Ray Bradbury’s Fahrenheit 451 (1953)

Summary of the Amazon DynamoDB Service Disruption in Northern Virginia (US-EAST-1) Region

Two Years After Cormac McCarthy’s Death, Rare Access to His Personal Library Reveals the Man Behind the Myth, by Richard Grant.

Cancelling async Rust, by Rain.

WireGuard topologies for self-hosting at home, by Gabriel Garrido. Interesting overview over some common configurations.

miniDusa is a finite-choice logic programming DSL within Racket similar to Dusa.

Scheme-rs, an embedded Scheme for the Async Rust Ecosystem. By Matthew Plant.

Glistix is a fork of the Gleam compiler which adds a Nix backend.

Pizarnik is a stack-based, concatenative language with extensible cases and evocative syntax for pattern-matching. By Vanessa McHale.

Olo is an imaginary color that can be seen by shooting lasers into the retina to isolate the response of M cone cells.

Kefir is an independent compiler for the C17/C23 programming language, developed by Jevgenij Protopopov.

Tracing Just-in-Time Compilation for Effects and Handlers (PDF), by Marcial Gaissert, CF Bolz-Tereick, and Jonathan Immanuel Brachthäuser.

Cap’n Web: a new RPC system for browsers and web servers, by Kenton Varda and Steve Faulkner.

ocrs is a Rust library and CLI tool for extracting text from images, also known as OCR (Optical Character Recognition). Uses a small neural network model.

The 100 MHz 6502, by Jürgen Müller. Same footprint as the original!

Writing an operating system kernel from scratch, by Uros Popovic. In Zig for RISC-V.

Ceu is a synchronous programming language that reconciles Structured Concurrency with Event-Driven Programming.

Jiff is a datetime library for Rust.

Some interesting stuff I found on IX LANs, by Benjojo.

The Naming of Tack Symbols in Unicode. Aggravating!

Kernel-hack-drill and a new approach to exploiting CVE-2024-50264 in the Linux kernel, by Alexander Popov. Very detailed writeup. “I can say that it’s the worst bug to exploit I’ve ever seen.”

Я (pronounced “ya”), by Murat Kasimov, is a new programming language built on natural transformations.

AmneziaWG is a fork of WireGuard-Go eliminating the identifiable network signatures that make WireGuard easily detectable by Deep Packet Inspection (DPI) systems.

Gate-level emulation of an Intel 4004 in 4004 bytes of C, writeup for Nicholas Carlini’s IOCCC entry.

FreeBSD Kernel Development Recipes (PDF), by Mark Johnston.

Atmos is a programming language reconciles Structured Concurrency with Event-Driven Programming, and compiles to Lua.

Optimized Binary GCD for Modular Inversion (2020), by Thomas Pornin.

Sangaku Puzzle I Can’t Solve, by Sameer Shah. I didn’t know the trick with inversion of the plane really.

χrust implements XPath, XQuery, and XSLT in Rust.

Pica Numbers in typewriter fonts. By David Jones.

Replication of Quantum Factorisation Records with an 8-bit Home Computer, an Abacus, and a Dog, by Peter Gutmann and Stephan Neuhaus. Funny.