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The most popular blog posts about software engineering on Hacker News. 1,747 posts.
My wife and I run OpenBenches - a crowd-sourced database of nearly 40,000 memorial benches. Every bench is geo-tagged with a latitude and longitude. But how do you go from a string of digits to something human readable? How do I turn -33.755780,150.603769 into "42 Wallaby Way, Sydney, Australia"? Luckily, that's a…
A brief introduction into computer vision and image processing using Grayskull library.
A CLI tool is not an app, and none of you are reading the docs as carefully as you think you are
I noticed about a 10x speed up across a number of projects, we'll avoid using a venv and run things as a non-root user too.
Why I chose Phoenix LiveView over Rails, Laravel, and Next.js
Go 1.25 introduces experimental support for encoding/json/jsontext and encoding/json/v2 packages.
We learn why adding on x86 isn't as obvious as you might think
The story of how I wrote a leak-free, thread-safe grep in C23 without shooting yourself in the foot, and how you can too! Introduction Let's be honest: mos...
Better SQL through typed, composable query fragments.
Shell tab-completions can be very handy, but setting them up is complicated by the fact that half your users would be using Bash-on-Linux, while the other half will be using Zsh-on-OSX, each of which has different tab-completion APIs. Furthermore, most users exploring an unfamiliar CLI tool using tab completion…
Most books and courses introduce Linux through shell commands, leaving the kernel as a mysterious black box doing magic behind the scenes. In this post, we will run some experiments to demystify it: the Linux kernel is just a binary that you can build and run.
I’ve released ZLinq v1 last month! By building on structs and generics, it achieves zero allocations. It includes extensions like LINQ to…
Unicode is good. If you’re designing a data structure or protocol that has text fields, they should contain Unicode characters encoded in UTF-8. There’s another question, though: “ Which Unicode characters?” The answer is “Not all of them, please exclude some.”
This is my Code BEAM Europe 2025 talk, converted to a blogpost.
From the Zed Blog: OpenAI's Codex AI agent is now available in Zed via the Agent Client Protocol (ACP).
The other day, while wasting time reading reddit, I stumbled upon a blogpost mentioning S3 FIFO, a method claiming to outperform LRU (Least Recently Used) in terms of cache miss ratio. Notable companies like RedPandas, Rising Wave, and Cloudflare have already implemented it in various capacities, so this piqued my…
Pattern recognition can see through obfuscated code to find the right instruction
Turning your API inside-out.
An investigation into The Games; Winter Challenge
Many Ruby applications allocate objects. What if we could make allocating objects six times faster? We can! Read on to learn more!
A new avenue for identifying greedy, badly-behaved bots
How to lovingly handcraft your own git repositories
Never write your own date parsing library. Never. No exceptions. Never have I ever… So… I’ve written my own date parsing library. Why? Our story begins seven…
Why I decided to ditch Cursor and switch to running Claude Code in an isolated environment + diy guide!
Some time ago I mentioned that we went through the curl source code and eventually got rid of all strncpy() calls. strncpy() is a weird function with a crappy API. It might not null terminate the destination and it pads the target buffer with zeroes. Quite frankly, most code bases are probably better off completely ……
I’ve been learning Persian (Farsi) for a while now, and I’m using a bunch of tools for it. The central one is certainly Anki, a spaced repetition app to train memory. I’m creating my own never-ending deck of cards, with different types of content, for different purposes. The most frequent type of cards is grammar…
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