Steve Klabnik

I started off this year writing a lot, and wanted to keep up the pace. I did good at first! And then… I didn’t manage to. In some ways, this is because I have just been super busy! I’ve never had less free time, and I’m…

AnthropicRelated

Your “Bluesky account” is not just a Bluesky account: it is an account that can be used with a variety of other applications. This post is going to be an exploration of part of what that means from a technical perspecti…

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I haven’t had time to blog in a while, I have a lot to say, but have been doing a lot of things and so haven’t gotten words down in a while. One of those things in the past few weeks has been picking back up my Rue proj…

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Okay, so you’ve got the basics of working with Claude going. But you’ve probably run into some problems: Claude doesn’t do what you want it to do, it gets confused about what’s happening and goes off the rails, all sort…

LLMsAnthropicRelated

In my last post, I suggested that you should start using Claude in your software development process via read-only means at first. The idea is just to get used to interacting with the AI, seeing what it can do, and seei…

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I want to continue with my series on how you can use Claude Code for software development , but I have at least two posts I need to write first. This post is one of those two. Thanks for all of the kind words you all ha…

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I started using Rust on December 21, 2012. It’s now December 22, 2025. That’s a long time. I don’t have a ton of thoughts about Rust to share today, like I thought I might. I program in the language regularly, it’s nice…

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In December of 2012, I was home for Christmas, reading Hacker News. And that’s when I saw “ Rust 0.5 released ."" I’m a big fan of programming languages, so I decided to check it out. At the time, I was working on Ruby…

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It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of…

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Someone on Reddit recently asked: What would make a Rust implementation of something faster than a C implementation, all things being the same? I think this is a great and interesting question! It’s really tough because…

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Recently, something happened that made me kind of like, break a little bit. I’m still not entirely sure why this whole thing bothers me so much, but here’s a blog post about it. I happened to ask ChatGPT something for f…

OpenAIRelated

It’s kind of hard to believe it’s been ten years since Rust 1.0 was released. I stopped working on Rust three years ago, and frankly, the last three years have been pretty rough. But 2025 is shaping up to be a really go…

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Today, Bluesky rolled out blue checks . And, I was given one. Now, I’m not the biggest fan of this sort of feature, however, I also don’t really think this kind of feature is for me. I really like the idea of domain ver…

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A while back, someone on the internet asked about this syntax in Rust: * pointer_of_some_kind = blah; They wanted to know how the compiler understands this code, especially if the pointer wasn’t a reference, but a smart…

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When people first hear about unsafe in Rust, they often have questions. A very normal thing to ask is, “wait a minute, doesn’t this defeat the purpose?” And while it’s a perfectly reasonable question, the answer is both…

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I tried to write this post yesterday, but I didn’t like my approach there. Last night, I had a conversation with one of my best friends about it, and he encouraged me to write this, but in a different way. I think this…

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A while back, I wrote A sad day for Rust about the Actix-web unsafe controversy. The short of it was, Actix-web was using some unsound unsafe code. When this was discovered, people responded pretty harshly, and the main…

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Rust has two main string types: String and &str . Sometimes, people argue that these two types make Rust code difficult to write, because you have to think about which one you should be using in a given situation. My ex…

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There’s an old saying: There are only two hard things in Computer Science: cache invalidation and naming things. ― Phil Karlton I also appreciate the joke version that adds “and off by one errors.” Lately, I’ve been thi…

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