Tony Finch – link log

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

2023‑12‑30: Git commit signing is kinda wack.
2023‑12‑27: A national evil: how iodized salt banished the curse of the goitre from Switzerland.
2023‑12‑26: What is a parser mismatch vulnerability?
2023‑12‑26: Lotus 1-2-3 for Linux.
2023‑12‑26: Reptar: an Intel x86 microcode bug.
2023‑12‑21: How to find secure hash collisions.
2023‑12‑16: Why aren't we SIEVE-ing? A new cache eviction algorithm.
2023‑12‑15: Forcy McForceFace: building a keyboard switch force tester out of an old 3D printer.
2023‑12‑13: Unauthenticated Bluetooth keystroke-injection in Android, Linux, macOS, and iOS.
2023‑12‑11: Compiling to categories.
2023‑12‑11: Cutting out continuations.
2023‑12‑10: Lambda to SKI, semantically.
2023‑12‑08: A brief history of keyboard encoding.
2023‑12‑05: A branchless quicksort partition algorithm.
2023‑12‑05: Stop stealing sheep, and find out how typography works.
2023‑12‑04: You don't need JavaScript for that.
2023‑11‑29: Why is Rust slower to read a file than Python?
2023‑11‑29: Destructing trees safely and cheaply.
2023‑11‑28: It's About Time! Accurate clocks in distributed systems.
2023‑11‑27: The largest number representable in 64 bits.
2023‑11‑24: FullControl: unconstrained gcode design for 3D printers.
2023‑11‑23: Wasmtime and Cranelift in 2023.
2023‑11‑23: Commercial flights driven off course by GPS spoofing attacks.
2023‑11‑22: Why does the moon change size when you snipe it in GTA?
2023‑11‑21: How I (kind of) killed Mercurial at Mozilla.
2023‑11‑21: Lessons from METAFONT.
2023‑11‑21: Drawing diagrams for TeX with MetaPost.
2023‑11‑20: A close encounter with false sharing in Rust.
2023‑11‑20: Friends don't let friends make bad graphs.
2023‑11‑20: setenv() is not thread safe and C doesn't want to fix it.
2023‑11‑19: Checking Rust crate semver stability in the presence of doc(hidden) items.
2023‑11‑17: Oops! We Automated Bullshit.
2023‑11‑17: Why you need a "WTF notebook".
2023‑11‑16: Can your static type system handle linear algebra?
2023‑11‑16: C++ std::source_location is broken.
2023‑11‑16: We don’t do DST at this company.
2023‑11‑16: A subtle Python SIGPIPE bug.
2023‑11‑15: Popcount walks: next, previous, toward and nearest.
2023‑11‑14: Let’s be real about dependencies.
2023‑11‑14: Replacing HLS/DASH with Media over QUIC.
2023‑11‑13: 37 is the median value for the second prime factor of an integer.
2023‑11‑12: A quick look at register allocation with destination-driven code generation.
2023‑11‑12: Space Invaders street art mosaics.
2023‑11‑09: Interesting JavaScript bugs caught by no-constant-binary-expression in ESLint.
2023‑11‑08: Surprising facts about new CSS selectors.
2023‑11‑07: Reducing Raspberry Pi 5's power consumption by 140x.
2023‑11‑07: Can solar and wind power Britain? An update of David MacKay’s numbers.
2023‑11‑07: Jezebel and the question of women’s anger.
2023‑11‑05: A proposed fix for C/C++ relaxed atomics in practice.
2023‑11‑03: Avoiding fallback and cold paths.
2023‑10‑26: Technical documentation for Citus distributed PostgreSQL.
2023‑10‑23: Y2038: why Steam started picking a random font.
2023‑10‑23: Protomaps: an open source map of the world, deployable as a single static file.
2023‑10‑21: The not-so-glamourous origins of standard railway track gauge.
2023‑10‑21: Analyzing data 180,000x faster with Rust.
2023‑10‑20: How to mitigate the Hetzner/Linode XMPP.ru MitM attack.
2023‑10‑20: TLS MITM attack against a Russian XMPP / Jabber service.
2023‑10‑20: ANSI terminal security in 2023 and finding 10 CVEs.
2023‑10‑20: Mandelbrot deep zoom theory and practice.
2023‑10‑19: Stop your (business rules) engines!
2023‑10‑19: The road to hell is paved with good intentions and C++ modules.
2023‑10‑17: Higher quality random floats.
2023‑10‑15: Faster compile times from simpler dependency graphs in Rust.
2023‑10‑14: Open Props: sub-atomic CSS.
2023‑10‑13: Thumb calendar.
2023‑10‑13: Conical Slicing: A different angle of 3D printing.
2023‑10‑10: Text showdown: gap buffers vs ropes.
2023‑10‑10: ECC RAM on AMD Ryzen 7000 desktop CPUs.
2023‑10‑09: UK postal address oddities.
2023‑10‑05: ROCkN: Providing GPS-quality timing accuracy with portable optical atomic clocks.
2023‑10‑05: Report ITU-R TF.2511-0 (10/2022): Content and structure of time signals to be disseminated by radiocommunication systems and various aspects of current and potential future reference time scales, including their impacts and applications in radiocommunication.
2023‑10‑05: The Terminal Escapes: Engineering unexpected execution from command line interfaces.
2023‑10‑03: The 300% production problem.
2023‑10‑03: x86 amd64 SIMD instruction list: SSE to AVX512.
2023‑10‑03: Arm64 SIMD instruction list: SVE instructions.
2023‑10‑02: 32 MiB working set on a 64 GiB machine.
2023‑10‑02: The Marvin attack: Bleichenbacher returns, again.
2023‑09‑29: Who really invented the alphabet?
2023‑09‑29: A plot of all objects in the universe.
2023‑09‑27: ARM LDM and STM are Turing complete.
2023‑09‑25: The invisible problem with editing text on phones.
2023‑09‑24: Introducing geometric algebra to software developers: a computational thinking approach.
2023‑09‑23: Polonius revisited, part 1.
2023‑09‑21: Speeding up the JavaScript ecosystem: polyfills gone rogue.
2023‑09‑19: Making Gaussian Splats smaller.
2023‑09‑19: mlego: DIY mechanical keyboards using LEGO enclosures.
2023‑09‑19: EPDiy: an ESP32-based driver board for e-Paper / E-ink displays.
2023‑09‑18: Oglaf search index.
2023‑09‑18: Resilient LL parsing tutorial.
2023‑09‑14: Pagefind and URL search parameters.
2023‑09‑13: George Gorton Machine Co engraver typefaces.
2023‑09‑12: Hacking the Book8088 for better accuracy.
2023‑09‑12: What’s the smallest variety of CHERI?
2023‑09‑11: HDMI ISA graphics card for vintage PCs by improving the Graphics Gremlin.
2023‑09‑11: Pure Wasm Life 2: optimizing webassembly and canvas with WebGL.
2023‑09‑11: The Carrington Event of 1859 disrupted telegraph lines. A “Miyake Event” would be far worse.
2023‑09‑10: Adding Wi-Fi to the Macintosh Portable.
2023‑09‑09: Black-box concurrent data structures for NUMA architectures.
2023‑09‑09: Good performance is not just big O.
2023‑09‑02: Spoofing certificates with MD5 collisions in 2022.
2023‑09‑01: A deep dive into Single Pair Ethernet.
2023‑08‑31: Ad-hoc polymorphism erodes type-safety.
2023‑08‑31: Co-dfns versus BQN's implementation.
2023‑08‑31: The mystery of the Bloomfield bridge.
2023‑08‑29: Grave flaws in BGP error handling.
2023‑08‑26: I made a Typewriter out of Drums!
2023‑08‑24: FreeBSD on Firecracker.
2023‑08‑23: ROMRAM: using QSPI RAM with RP2040's SSI in read-write mode.
2023‑08‑23: USB HID device class definition.
2023‑08‑23: USB HID usage tables.
2023‑08‑22: Building and customizing a Kyria wireless ergonomic keyboard.
2023‑08‑21: Designing a PCB for the RP2040 Microcontroller | Microcontroller Tutorials
2023‑08‑21: Normal incidents.
2023‑08‑18: PolymurHash: a 64 bit universal hash function.
2023‑08‑13: Symmetry in Chaos.
2023‑08‑13: Virtualizing uxn.
2023‑08‑07: Reverse Z in 3D graphics (and why it’s so awesome).
2023‑08‑06: Why does libvirt support only 14 hot-plugged PCIe devices on x86-64?
2023‑08‑04: The physics of readable code.
2023‑08‑02: Why Python is terrible.
2023‑08‑02: Akin's laws of spacecraft design.
2023‑08‑02: MIT engineers create an energy-storing supercapacitor from cement and carbon black.
2023‑07‑31: The Fibonacci matrix.
2023‑07‑31: What John von Neumann really did at Los Alamos.
2023‑07‑30: Workarounds for C11 _Generic().
2023‑07‑29: LPython: novel, fast, retargetable Python compiler.
2023‑07‑27: The mind grenade, 50 years on.
2023‑07‑22: Managing kitchen fruit flies with a Little Shop of Horrors.
2023‑07‑22: Linear-time parser combinators.
2023‑07‑21: HP-1973: an HP calculator emulator.
2023‑07‑19: Local async executors should be the default in Rust.
2023‑07‑17: Appreciating RFC 8927 JSON type definition.
2023‑07‑16: Penrose: create beautiful diagrams by typing notation in plain text.
2023‑07‑11: salty: Ed25519 for ARM microcontrollers.
2023‑06‑26: Ideal dimensions for PCB breakaway tabs.
2023‑06‑24: No vehicles in the park: a game about content moderation.
2023‑06‑22: 57 different scripts descended from Egyptian hieroglyphs.
2023‑06‑09: Monongahela: a design for a balanced ternary computer.
2023‑06‑06: Wiio's laws of human communication
2023‑06‑04: BRR: A new line drawing method for the cycle savvy.
2023‑06‑04: Calculating position from raw GPS data.
2023‑05‑31: Hacking my “smart” toothbrush.
2023‑05‑30: Futex-likes on non-Linux systems.
2023‑05‑29: ITU News Magazine: The future of Coordinated Universal Time.
2023‑05‑29: SectorC: A C Compiler in 512 bytes.
2023‑05‑28: Bcrypt at 25: a retrospective on password security.
2023‑05‑23: Unpacking 5 billion varints in only 4 billion CPU cycles.
2023‑05‑22: Wrench: an embedded interpreter.
2023‑05‑19: bilge: a bit fiddling proc macro for Rust.
2023‑05‑17: Logs said it was DNS, it looked like DNS, it had to be DNS, it wasn't DNS.
2023‑05‑14: rxv6: a Rust rewrite of MIT’S xv6 teaching OS.
2023‑05‑13: Building a baseline JIT for Lua automatically.
2023‑05‑12: PS-HTTP: a web server written in PostScript.
2023‑05‑11: Building an anycast secondary DNS service.
2023‑05‑11: Building the Micro Mirror free software CDN.
2023‑05‑10: Semantics and scheduling for machine knitting compilers.
2023‑05‑08: On custom-width integer types.
2023‑05‑07: Mysteries of the Griffin iMate and the Apple Extended Keyboard II.
2023‑05‑07: The tale of -mrtd in GCC and Clang.
2023‑05‑07: Prolly trees: Merklizing the key/value store for fun and profit.
2023‑05‑07: On numbering hegemonies and namespace monopolies.
2023‑05‑05: Science Fiction Movie Lettering
2023‑05‑03: I want to talk about WebGPU.
2023‑05‑02: Flattening ASTs with arena allocation.
2023‑05‑01: A mirror for Rust: compile-time reflection.
2023‑05‑01: First clean water, now clean air.
2023‑05‑01: Perfect hashing for strings with PEXT.
2023‑04‑30: Basics of space flight: orbital mechanics.
2023‑04‑29: gefs: a good enough filesystem for Plan 9.
2023‑04‑26: You could have invented futexes.
2023‑04‑22: The magic of DC-DC voltage conversion.
2023‑04‑22: Escheresque parquet deformations of an aperiodic monotile.
2023‑04‑21: n2: an alternative ninja implemrntation in Rust.
2023‑04‑16: The time Bell Labs brought the Statue of Liberty under its roof (literally).
2023‑04‑16: Registration desk process engineering at a furry convention.
2023‑04‑13: Mac keyboard layout configuration with hidutil.
2023‑04‑10: Night of the living brain fog, or how I hacked my sleep apnea better thanks to open source software.
2023‑04‑10: Can you trust a compiler to optimize (even vectorize) your code?
2023‑04‑10: nsss: a secure NSS-like implementation for static linking.
2023‑04‑10: Using RP2040 PIO to drive a poorly-designed display.
2023‑04‑09: Modular errors in Rust.
2023‑04‑08: Database “sharding” came from Ultima Online?
2023‑04‑07: The longest straight line in Great Britain (without crossing a public road).
2023‑04‑06: CAN Injection: keyless car theft.
2023‑03‑30: Mozilla XUL layout is gone from Firefox.
2023‑03‑15: Infra-red in-situ (IRIS) inspection of silicon.
2023‑03‑15: No more DSLs: Implement and deploy a distributed system with a single program.
2023‑03‑14: Generating aerial imagery with your iPhone’s LiDAR sensor.
2023‑03‑12: How we knew space is a vacuum.
2023‑03‑10: \Device\Afd: what makes async Rust and libuv work on Windows.
2023‑03‑09: The Quest for Netflix on Asahi Linux.
2023‑03‑08: The linguistic registers of Rust.
2023‑03‑08: Historical notes on computer word and byte sizes.
2023‑03‑08: How Discord stores trillions of messages.
2023‑03‑07: How UC Davis medical school became remarkably diverse.
2023‑03‑07: I made React Native JSON.parse() 2x faster.
2023‑03‑03: Atkinson hyperlegible font.
2023‑02‑28: HOTscript: higher-order TypeScript, a library for type-level madness.
2023‑02‑05: Where is the most densely populated square kilometre in the UK?
2023‑02‑03: Weird things I learned while writing an x86 emulator.
2023‑01‑31: Adding comments to your static blog with Mastodon.
2023‑01‑30: Coloring for colorblindness.
2023‑01‑29: The 12-bit rainbow palette.
2023‑01‑29: Elektročas HH3: the most accurate pendulum clock on the planet.
2023‑01‑28: C needs a new type qualifier: it’s time for null pointer safety.
2023‑01‑27: Netheads vs. bellheads redux: the strange victory of SIP over the telephone network.
2023‑01‑27: Reverse engineering the original Lytro lightfield camera.
2023‑01‑26: What time is it on the Moon?
2023‑01‑25: Do not taunt happy fun branch predictor.
2023‑01‑24: Bounded flexible arrays in C.
2023‑01‑19: Huge pages are a good idea.
2023‑01‑18: XLR V3: Guinness world record holder for fastest quadcopter drone.
2023‑01‑17: BetterDisplay: extra configuration options for macOS.
2023‑01‑08: User-level implementations of RCU (read copy update).
2023‑01‑08: The DIY scientist, the olympian, and the mutated gene.
2023‑01‑08: Production Twitter on one machine?
2023‑01‑05: Reflecting on transducers in Scheme.
2023‑01‑01: How to get Xfinity Stream to work on Linux: a tale of Widevine, Chrome OS, and a patched glibc.
2023‑01‑01: Better binary search in Haskell.