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Introduction to FPGAs
Introduction Field Programmable Gate Arrays (FPGAs) are a form of programmable hardware that has become inexpensive and accessible recently. I recently purchased a Digilent Basys 3 FPGA development…
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The latest blog posts to take off on Hacker News. 14,540 posts.
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I use C when I believe in memory safety
I am using C for a professional project. I believe in memory safety. Yes, I'm a hypocrite, but please, let me explain.
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The Story of Mel
This was posted to USENET by its author, Ed Nather (utastro!nather), on May 21, 1983.
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Reverse-Engineering YouTube: Revisited
Back in 2017 I wrote an article in which I attempted to explain how YouTube works under the hood, how it serves streams to the client, and also how you can exploit that knowledge to download videos from the site. The primary goal of that write-up was to…
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Rewrite, refactor, or reinvent? Lessons from 6 software rewrite stories (2019)
<p>A new take on the age-old question: Should you rewrite your application from scratch, or is that “the single worst strategic mistake that any software company can make”? Turns out there are more than two options for dealing with a mature codebase.</p>
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The Linux Upskill Challenge
The Linux Upskill Challenge (https://github.com/livialima/linuxupskillchallenge) as done by Leo Robinovitch
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Adding C-style for loops to Python (2022)
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Haskell is not category theory
What, why, who?
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Shipping Graphing Calculator
I've been on many projects that get canceled. We're building cool stuff. We're going above and beyond, and we're excited. But the project encounters reality, shifting priorities, or budgeting constraints, and the work never goes anywhere. It always feels tragic, but then I move on. But what if I didn't let a project…
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QOA, the Quite OK Audio Format
Audio formats typically fall into one of three categories: “lossless” , “complicated” or “bad” . After developing a simple image format last year, I tried to come up with an audio format that fits neither of these categories.
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C was not created as an abstract machine
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Python's “disappointing” superpowers
A response to Hillel Wayne’s “I am disappointed by dynamic typing”
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Combobulate: Structured Movement and Editing with Tree-Sitter
Combobulate is a package that adds advanced structured editing and movement to many programming modes in Emacs. Here's how it works, and how it can enrich your editing experience in Emacs.
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Reducing Go execution tracer overhead with frame pointer unwinding
The Go Execution Tracer (aka runtime/trace) was designed to achieve low enough overhead to be usable on “a server in production serving live traffic”. This is achieved by writing events into per-P buffers, using RDTSC for timestamps, and encoding into a relatively efficient binary format.
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C++ Neural Network in a Weekend (2020)
A blog about game engines, graphics, C++, and more.
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The benefits of everything being a buffer in Emacs
For today I only have a very short tip – or maybe let’s call it an anecdote. (This is not because I didn’t have time for writing last week. Quite the opposite – I’ve been working very hard on one of the projects I mentioned in my 2023 planning post . I think I’ll be able to share some details next week.)
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SQL should be the default choice for data transformation logic
SQL should be the first option considered for new data engineering work. It’s robust, fast, future-proof and testable. With a bit of care, it’s clear and readable.
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Over the past 21 months I’ve written a code editor from the ground up
Over the past 21 months I’ve written a code editor from the ground up, including: a fast (~120fps) canvas-based editor component; multi-language syntax highlighting with Tree-sitter; snippets; a file browser; find-and-replace with regex and JavaScript expression support; and two completely new features: AST mode and…
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Swift Achieved Dynamic Linking Where Rust Couldn't (2019)
For those who don’t follow Swift’s development, ABI stability has been one of its most ambitious projects and possibly it’s defining feature, and it finally shipped in Swift 5 . The result is something I find endlessly fascinating, because I think Swift has pushed the notion of ABI stability farther than any language…
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Training NanoGPT on My Journal
Wouldn't it be great to have a pet AI chat bot that knows you really well, and can give you free consulting, coaching and therapy ? What could possibly go wrong if an intelligent corporate-controlled system has unlimited access to your private data to provide you the best possible service? Well... a lot of things.
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The Transformer Family
Many new Transformer architecture improvements have been proposed since my last post on “The Transformer Family” about three years ago. Here I did a big refactoring and enrichment of that 2020 post — restructure the hierarchy of sections and improve many sections with more recent papers. Version 2.0 is a superset of…
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Features I'd Like in PostgreSQL
I’ve put in my fair share of time with PostgreSQL. It has no shortage of functionality and I believe its expansive feature set drove a lot of its growing popularity in the 2010s. As my time with the database has worn on I’ve come up with a handful of features that I wish the database had. Some of these are ideas…
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The magic of small databases
Notes on personal libraries, collections and small indexes on the web
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Merging with diff3: the “three-way merge”
If you enjoy this article, I have published a book explaining the internals of Git through implementation: Building Git .
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Elite for Emacs (2015)
A recent discovery from old backups revealed something long forgotten: I really developed a version of Elite for…. that’s right… Emacs text editor.
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Religious and spiritual folklore surrounding programming
You've been visited by St. Ignucious. Upvote for success in FOSS