Debunking Zswap and Zram Myths
tl;dr: If in doubt, prefer to use zswap. Only use zram if you have a highly specific reason to. In terms of architecture: zswap sits in front of your disk swap, compresses pages in RAM, and automatically tiers cold data to disk. It integrates directly with the kernel’s memory management and distributes pressure gracefully. zram […]
curl > /dev/sda: How I made a Linux distro that runs wget | dd
How I made a Linux distro that runs `wget | dd` 2026-03-24 02:10 Linux http To replace your Linux installation with a new OS, you can download a pre-prepared disk image directly to your disk by running a command like this: curl https://something.example/foo.img > /dev/sda # (or whatever your disk is called) No need to […]
Local Bernstein theory, and lower bounds for Lebesgue constants
Local Bernstein theory, and lower bounds for Lebesgue constants 23 March, 2026 in math.CA, math.CV, paper | Tags: exponential type, Lagrange interpolation, Paul Erdos, trigonometric polynomials | by Terence Tao I’ve just uploaded to the arXiv my paper “Local Bernstein theory, and lower bounds for Lebesgue constants“. This paper was initially motivated by a problem of […]
Microsoft’s ”Fix” for Windows 11: Flowers After the Beating
Microsoft just announced a 7-point plan to fix Windows 11, and the tech press is treating it like a redemption arc. Pavan Davuluri, the Windows president, admitted in January 2026 that ”Windows 11 had gone off track” and said Microsoft was entering a mode called ”swarming” where engineers would be pulled off new features to […]
Show HN: ProofShot – Give AI coding agents eyes to verify the UI they build
ProofShot — Visual proof for AI-built code Open Source — MIT Licensed Let your AI agent prove its own work with video recording, error logs, and proof artifacts — every time it ships code. $ npm install -g proofshot GitHub REC localhost:3000/board New item Name Enable dark mode Priority P0 P1 P2 🧭 Navigate: /board […]
From zero to a RAG system: successes and failures
A few months ago I was tasked with creating an internal tool for the company’s engineers: a Chat that used a local LLM. Nothing extraordinary so far. Then the requirements came in: it had to have a fast response, I insist… fast!, and… it also had to provide answers about every project the company has […]
Gzip decompression in 250 lines of Rust
i wanted to have a deeper understanding of how compression actually works, so i wrote a gzip decompressor from scratch. the result is about 250 lines of rust that can decompress gzip from a file or stdin. why bother? gzip is everywhere. it compresses your web traffic, your log files, your documentation / man pages, […]
Ripgrep is faster than {grep, ag, Git grep, ucg, pt, sift}
In this article I will introduce a new command line search tool, ripgrep, that combines the usability of The Silver Searcher (an ack clone) with the raw performance of GNU grep. ripgrep is fast, cross platform (with binaries available for Linux, Mac and Windows) and written in Rust. ripgrep is available on Github. We will […]
Box of Secrets: Discreetly modding an apartment intercom with Matter
My friend Frank (not his real name) hosts a lot of guests at his apartment, and his complex’s intercom is what ushers them inside. You’ve probably seen them before, they look like this: The Doorking 1834-080 intercom at Frank’s apartment. Up until recently, guests could find Frank’s number in the system and give it a […]
Epoch confirms GPT5.4 Pro solved a Frontier Math Open Problem for the first time
Solution Update: This problem has been solved! A solution was first elicited by Kevin Barreto and Liam Price, using GPT-5.4 Pro. This solution was confirmed by problem contributor Will Brian, and will be written up for publication. A full transcript of the original conversation with GPT-5.4 Pro can be found here and GPT-5.4 Pro’s write-up […]