901
Nobody got fired for Uber's $8M ledger mistake?
LedgerStore became a case study for DynamoDB, and system design publications keep praising it to this day. But the design was abandoned 3 years after it went live.
New
The latest blog posts to take off on Hacker News. 21,816 posts.
902
XOR'ing a register with itself is the idiom for zeroing it out. Why not sub?
Somehow xor became the most popular version.
903
What async promised and what it delivered
The async/await saga is a story where each chapter solves the previous chapter's worst problem while introducing new structural costs. The sequential syntax that made async code readable also obscures the thing that matters: which operations actually depend on each other.
904
How to Implement an FPS Counter
TL;DR: Don’t base your FPS calculations on a specific number of frames. Instead, maintain a rolling window of frames that happened during the last second. Use precise timers. Read on for more details.
905
Drunk post: Things I've learned as a senior engineer (2021)
Everything your mentor wants to say but HR won't let them
906
A type-safe, realtime collaborative Graph Database in a CRDT
Open-source TypeScript property graph database from codemix.
907
Your hex editor should color-code bytes
every time i do, i feel bad for the poor person having to use it (especially if that person is me!). a plain list of bytes makes it hard to notice interesting things in the data. go ahead, try to find the single c0 in these bytes:
908
How to make a fast dynamic language interpreter
This post is about optimizing an extremely simple AST-walking interpreter for a dynamic language called Zef that I created for fun to the point where it is competitive with the likes of Lua, QuickJS, and CPython.
909
Jujutsu megamerges for fun and profit
A practical guide to creating and maintaining powerful megamerge workflows in Jujutsu for faster, conflict-free development.
910
Highlights from Git 2.54
The open source Git project just released Git 2.54. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
911
Kimi K2.6: Advancing open-source coding
Kimi K2.6 advances open-source coding, featuring long-horizon coding, coding-driven design, agent swarms, proactive agents, and the Claw Groups research preview.
912
ggsql: A Grammar of Graphics for SQL
Introducing ggsql, a grammar of graphics for SQL that lets you describe visualizations directly inside SQL queries.
913
All your agents are going async
Agents used to be a thing you talked to synchronously. Now they’re a thing that runs in the background while you work. When you make that change, the …
914
Theseus, a Static Windows Emulator
An new old approach to emulation.
915
5x5 Pixel font for tiny screens
All characters fit within a 5 pixel square, and are safe to draw on a 6x6 grid. The design is based off of lcamtuf's 5x6 font-inline.h, which is itself inspired by the ZX Spectrum's 8x8 font.
916
Clojure: Transducers
Transducers are composable algorithmic transformations. They are independent from the context of their input and output sources and specify only the essence of the transformation in terms of an individual element. Because transducers are decoupled from input or output sources, they can be used in many different…
917
Modern Rendering Culling Techniques
🏠🏠🏠🌲🌲🌲🏠🌲🌲🏠🌲🌲🏠🌲🏠🌲❌🏠🌲🌲🌲
918
Garbage collection without unsafe code
Many people, including myself, have implemented garbage collection (GC)libraries for Rust. Manish Goregaokar wrote up a fantastic survey of thisspace a few y...
919
Optimizing Ruby Path Methods
Back in November last year, I started a new job at Intercom, and one of the first projects I got to work on was improving the Intercom monolith CI with some of my new colleagues.
920
A simplified model of Fil-C
I've seen lots of chatter about Fil-C recently, which pitches itself as a memory safe implementation of C/C++. You can read the gritty details of how this is achieved, but for people coming across it for the first time, I think there is value in showing a simplified version, as once you've understood the simplified…
921
"cat readme.txt" is not safe if you use iTerm2
Turning "cat readme.txt" into arbitrary code execution in iTerm2.
922
I’m spending months coding the old way
ai is here. so i'm spending 3 months coding the old way
923
924
What are skiplists good for?
An exotic data structure and a whole lot of JOINs.
925
Zero-copy protobuf and ConnectRPC for Rust
As part of my work at Anthropic, I open sourced two Rust crates that fill a gap in the RPC ecosystem: buffa, a pure-Rust Protocol Buffers…
926
A better R programming experience thanks to Tree-sitter
Modern tooling for parsing, searching, formatting, editing R code, just like for other programming languages.
927
Android CLI: Build Android apps 3x faster using any agent
News and insights on the Android platform, developer tools, and events.
928
Codex for almost everything
The updated Codex app for macOS and Windows adds computer use, in-app browsing, image generation, memory, and plugins to accelerate developer workflows.
929
Qwen3.6-35B-A3B: Agentic coding power, now open to all
Qwen offers comprehensive functionality spanning chatbot, image and video understanding, image generation, document processing, web search integration, tool utilization, and artifacts.
930
Artifacts: Versioned storage that speaks Git
Give your agents, developers, and automations a home for code and data. We’ve just launched Artifacts: Git-compatible versioned storage built for agents. Create tens of millions of repos, fork from any remote, and hand off a URL to any Git client.