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Four lines of code it was four lines of code
Four lines of code … it was four lines of code
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 14,544 posts.
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Retro on Viberary
Do fun projects
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Bril: An Intermediate Language for Teaching Compilers
I created a new intermediate language, called Bril, for teaching my funky open-source, hands-on compilers course. Because it’s for education, Bril prioritizes simplicity and regularity over more typical compiler priorities like performance and concision. This is an overview of Bril’s design, its quirks, and the…
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Setting Emacs theme based on ambient light
I sit next to a window at work. On sunny days it’s easier to see a light editor theme, and when the sky is dark, a dark theme is easier on my eyes. So I decided to try to have my MacBook automatically switch the Emacs theme based on readings from the ambient light sensor.
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Ten Years of Purely Functional Data Structures (2008)
In 1998, I published a book called Purely Functional Data Structures . Ten years later, the book is still selling well. (Every time I get ...
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Making a cross-platform mobile game in Reason/OCaml
Targets web, native android, ios, and desktop!
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RISC-V from scratch 2: Hardware layouts, linker scripts, and C runtimes
A post describing how C programs get to the main function. Devicetree layouts, linker scripts, minimal C runtimes, GDB and QEMU, basic RISC-V assembly, and other topics are reviewed along the way.
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A friendly Introduction to Backpropagation in Python
My aim here is to test my understanding of Karpathy’s great blog post “Hacker’s guide to Neural Networks” as well as of Python, to get a hang of which I rece...
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ML from Scratch, Part 2: Logistic Regression (2018)
In this second installment of the machine learning from scratch we switch the point of view from regression to classification: instead of estimating a number, we will be trying to guess which of 2 possible classes a given input belongs to. A modern example is looking at a photo and deciding if its a cat or a dog.
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Help me sort out the meaning of “{}” as a constructor argument
In Effective Modern C++ , one of the explanations I have in Item 7 ("Distinguish between () and {} when creating objects") is this: If ...
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Average Income per Programming Language
Update 8/21: I’ve gotten a lot of feedback about issues with these rankings from comments, and have tried to address some of them here. The data there has been updated to include confidence…
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The Pretty JSON Revolution
Wouldn't it be nice if more JSON tools supported a truly pretty JSON format? Demand options for truly pretty JSON now! Viva la revolucion!
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You don't really need a virtualenv
Frost Ming's personal blog
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Things I hate about Rust, redux
Two years ago, I wrote a post with a handful of grievances about Rust , a language that I then (and still) consider my favorite compiled language.
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Write less code, be more responsible
My thoughts on AI-assisted programming.
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Less Htmx Is More
How to build great websites with htmx by learning a couple browser features alongside it.
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I fixed a bug the other day
I fixed a bug that was in production for 2 years with a few lines of code.
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Should you ditch Spark for DuckDB or Polars?
There’s been a lot of excitement lately about single-machine compute engines like DuckDB and Polars. With the recent release of pure Python Notebooks in Microsoft Fabric, the excitement about these lightweight native engines has risen to a new high. Out with Spark and in with the new and cool animal-themed engines— is…
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Using Python for Scripting
"Use the right tool" is nice in theory, but not when the tool acts a bit differently from machine to machine, and isn't always installed.
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Not knowing the /proc file system
Overview Edit: this post was discussed on hacker news Some of the comments contained valuable reviews of the C code listed below. I’ve appended some edits after the original listing. I’ve been working quite with files and file systems on Linux recently. Mostly from the vantage point of either a shell or a python…
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State of Bootstrap 4 vs. Foundation
Bootstrap 4 and Foundation 6 are the latest versions of the most widely used CSS frameworks out there. Foundation 6 is stable whereas Bootstrap 4 hasn’t been released yet. However, before you wonder why I am comparing a stable framework version vs an alpha one, let me set the record straight by saying that Bootstrap 4…
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Rails 6 with Webpacker 6, Tailwind 2 with JIT, Postcss 8 and some default setup
It is always nice to follow a detailed guide and steps when building new rails apps. Below is a bit of guidance and step-by-step…
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[ -z $var ] works unreasonably well
There is a subreddit /r/nononoyes for videos of things that look like they’ll go horribly wrong, but amazingly turn out ok.
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Broccoli Man, Remastered
A breakdown of how I used modern AI tools (Veo 3.1 and Nano Banana) to create a new version of a Google cultural classic.
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