The latest blog posts to take off on Hacker News. 21,817 posts.
I imported the entire Linux kernel git history into pgit's PostgreSQL-backed storage. 1,428,882 commits, 24.4 million file versions, 20 years of development. Here's what the kernel looks like when you can just ask.
C# 15 introduces union types — declare a closed set of case types with implicit conversions and exhaustive pattern matching. Try unions in preview today and see the broader exhaustiveness roadmap.
Actually building floating point from scratch!
How coding agents use tools, memory, and repo context to make LLMs work better in practice
Run Rails on SQLite with WAL and Docker volumes while accounting for the concurrency failure that appears during blue-green deploys.
We have been using Signals in production for years via several modern front-end frameworks like Solid, Vue, and others, but few of us are able to explain how they work internally. I wanted to dig into it, especially diving deep into the push-pull based algorithm, the core mechanism behind their reactivity.
In computing, the terms big endian and little endian refer to the order in which a value's bytes are stored in memory: with the most significant (big) or least significant (little) part first.
I have seen a lot of public discussion around supply-chain attacks on the Python ecosystem, prompt injection risks when using coding agents,...
We replaced expensive sandboxes with ChromaFs, a virtual filesystem over Chroma, to give our docs AI assistant the ability to explore documentation like a developer would.
Cursor 3 is a unified workspace for building software with agents.
SQLite has evolved far beyond a simple embedded database. Explore modern features like JSON, FTS5, window functions, strict tables, and more.
How a dialect of LISP can help developping modern enterprise applications
Domain separation bugs have bitten Bitcoin, Ethereum, TLS, and AWS. Snowpack solves this by embedding random domain separators directly in the IDL.
Unmatched accuracy and speed. Transcribe converts your business’ audio data into precise text for search, analytics, and automation.
This blog post and the companion video both explain an erosion technique I’ve worked on over the past eight months. The video has lots of e...
Vulnerability discovery has always been gated by elite attention. Elite attention is now abundant. What happens next?
You already know that a + b * c + d is calculated as a + (b * c) + d. But how do you encode that knowledge precisely enough for a machine to act on it?
The planner treats CTEs very differently depending on how you write them. Here's what happens under the hood, version by version, through PostgreSQL 18.
How VHDL preserves determinism In this post, I would like to talk about VHDL’s crown jewel: how it preserves determinism in a concurrent language. Here is a figure of how it works:
After a team member summoned Copilot to correct a typo in a PR of mine, Copilot edited my PR description to include and ad for itself and Raycast .
This may have some legs
What if I told you SQL could play chess? No JavaScript, no frameworks - just pure SQL rendering a full chess board in your browser.
Every dataframe library ships with hundreds of operations. pandas alone has over 200 methods on a DataFrame. Is pivot different from melt? Is apply different from map? What about transform, agg, applymap, pipe? Some of these seem like the same operation wearing different hats. Others seem genuinely distinct. Without a…
how to hide juicy data in plain sight
How the KV cache gives every AI conversation a physical weight in silicon, and what happens when the memory runs out.
TruffleRuby started as my internship project at Oracle Labs in early 2013. It is an implementation of the Ruby programming language on the JVM, using the Graal dynamic compiler and the Truffle AST interpreter framework . TruffleRuby can achieve peak performance well beyond that possible in JRuby at the same time as…
And why you would want to exec a cpio
The official White House Android app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.
There are a lot of challenges in the way QA and engineering work together. Many eng leaders think you shouldn't have QA. I dig in.
We have significantly improved how code reviews work in Lubeno. We think code review should do more than catch bugs, it should also help teams reduce comprehension debt. In this post, I want to explain how that idea shaped our recent work on code review in Lubeno.
