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ULIDs and Primary Keys
Not all non-sequential primary keys are created equal, the ULID format is a fantastic substitute for the typical UUIDv4 choice.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,842 posts.
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How to Review Code as a Junior Developer
Emma Catlin | Software Engineer
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Exploring Error Handling Patterns in Go
One such topic that has challenged my own conceptions is how errors are handled in Go. To recap:
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The end of "Useless Ruby sugar": On intuitions and evolutions
I wrote the analysis of “useless sugar” features of Ruby for two months, and I regret nothing.
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How to Scale a System from 0 to 10M+ Users
Scaling is a complex topic, but after working at big tech on services handling millions of requests and scaling my own startup (AlgoMaster.io) from scratch, I’ve realized that most systems evolve through a surprisingly similar set of stages as they grow.
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Bringing Chrome to ARM64 Linux Devices
We’re excited to announce that Google will launch Chrome for ARM64 Linux devices in Q2 2026, following the successful expansion of Chrome to Arm-powered macOS devices in…
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.NET Core Tooling in Visual Studio “15”
This post was co-authored by David Carmona, a Principal Program Manager Lead in .NET Team and Joe Morris, a Senior Program Manager in .NET Team. Couple of weeks back, we dedicated a blog post introducing .NET Standard 2.0, which will significantly extend your ability to share code by unifying .NET APIs across all…
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Netflix's Distributed Counter Abstraction
By: Rajiv Shringi, Oleksii Tkachuk, Kartik Sathyanarayanan
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My mental model of how alpha opacity works is wrong (2020)
When plotting overlapping elements with a defined alpha (opacity), I had always thought about it as an additive process with results clamped to not exceed 1.
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Maps and Memory Leaks in Go
A map can always grow in memory; it never shrinks. Hence, if it leads to some memory issues, you can try different options.
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My First Kernel Module: A Debugging Nightmare
This is the story of the time I wrote some code, deployed it to production, and ended up bricking the server it was running on by frying the kernel. Beautiful rendition of me frying the kernel This post is about perils of concurrency and...
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The Hunt for the Fastest Zero
Unexpected performance deviations depending on how you spell zero.
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Formally Verifying Rust's Opaque Types
Introduction The other day I was reading this blog post covering existential types in Rust (also known as impl Trait or opaque types). In that blog post, the author makes the following claim. We’re going to have to take a slight diversion into type theory here because it motivates a result that is perhaps intuitive…
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Test driven development at Transloadit
You have probably heard a few talks or read a few articles where test driven development is depicted as a magic unicorn that watches over your software and makes everybody happy. Well, about 18.000 lines of "magic unicorn" code later, I'd like to put things into perspective.
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C'mon, stop writing Java for Android
Stop writing Java for your Android apps! There are a slew of ways to build...
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My Agent Setup
Personal website of Chad Arimura - My agent setup
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Indices Point Between Elements
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this: In this post, I want to persuade you to replace that image, or, at least, to augment it with an…
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Lock-Free Rust: How to Build a Rollercoaster While It's on Fire
A joyride through the dangers of lock-free programming.
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Avoiding game crashes related to linked lists
Linked lists look harmless until they start detonating your game at runtime. This is the bug pattern far too many programmers miss.
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Postfix Code Completion in IntelliJ IDEA 13.1
A lot of people tend to think these days completion is a regular feature for every IDE. Well, that is not exactly the case. IntelliJ IDEA has already demonstrated that there is no such thing as a regu
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AI Content Generation, Part 1: Machine Learning Basics
This technology is already changing the creative industry. Here's how it works.
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From AST to Lossless Syntax Tree
As noted in ASDL Implementation and Use Cases , I began with a simple AST interpreter for OSH, thinking that the two languages could share the same AST.
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100,000 DOM Updates
Click the table of zeroes once. Note that the text input field remains responsive even as we run 100,000 updates on the DOM. The colors of the table show the render batching boundaries. Note, I would not try this on a mobile device ;)
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Scala == Effective Java?
I started reading Joshua Bloch's Effective Java last week. I'll have to admit that I haven't read it before, but only because I've been told...
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Dart 1.9
Asynchronous programming is everywhere – user interaction, network access, file I/O. Dart simplifies and enhances these scenarios with the...
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Structured Editing and Incremental Parsing
As someone who has from time to time written on parsing, and even published some parsing research , I get asked questions about parsing fairly regularly, some of which I’m even capable of answering.