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I tried Gleam for Advent of Code
A 12 day Advent of Code year convinced me Gleam is the real deal, thanks to Rust-like errors, great pipes, and surprisingly ergonomic FP.
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Forth: The programming language that writes itself
An exploration of the evolution and meaning of the Forth programming language and its context in history.
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I Wrote a WebAssembly VM in C
For the last 6 months, I’ve been spending my (limited) free time on evenings and weekends writing a WebAssembly VM in C. After repeatedly throwing away small side-projects, this was an extremely productive experience for me as an engineer. I’m writing this in order to put together some take-aways and organize my…
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How I turned Zig into my favorite language to write network programs in
I’ve been watching the Zig language for a while now, given that it was created for writing audio software (low-level, no allocations, real time). I never paid too much attention though, it seemed a little weird to me and I didn’t see the real need. Then I saw a post from Andrew Kelley (creator of the language) on…
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Python can run Mojo now
Chris Lattner mentioned that Python can actually call Mojo code now. I love this idea (!) as I'm definitely in the market for a simple compiled language that can offer Python some really fast functions.
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Python has had async for 10 years – why isn't it more popular?
A deep-dive into the challenges and misconceptions surrounding async programming in Python
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TinyCompiler: A compiler in a week-end
Have you ever wondered how a compiler works, but you never found courage to find out? Then this series of articles is for you. I have never had the chance to look under the hood either, but one week-end I have decided to to write a translator from the esoteric programming language wend (short for week-end), which I…
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Use Your Type System
Today I'm discussing a trivially simple technique that I've rarely seen used in production codebases. In programming, we often need to deal with simple values that can be represented by simple, generic types built into our programming language or provided by libraries: types like integer, string, or UUID. In any
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Solving `Passport Application` with Haskell
Using logic programming to beat the game
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Phrase origin: Why do we "call" functions?
On StackExchange, someone asks why programmers talk about “calling” a function. Several possible allusions spring to mind: Calling a function is like calling on a friend — we go, we stay a while, we come back. Calling a function is like calling for a servant — a summoning to perform a task. Calling a function is like…
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Why is the Rust compiler so slow?
I spent a month repeatedly building my website in Docker, and now have horrors to share.
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I spent a year making an ASN.1 compiler in D
In this post I’ll just rambling about ASN.1; parts of the compiler implementation, and some of the tool’s output rather than the tool itself as its still too WIP to really advertise on its own yet.
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What .NET 10 GC changes mean for developers
.NET 10 GC tuning shows how stack allocations, DATAS, and region sizing cut allocations, improve latency, and reduce your cloud cost.
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Go 1.24's go tool is one of the best additions to the ecosystem in years
Why I'm very excited about `go tool` landing in Go 1.24.
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Compiling Ruby to machine language
I've started working on a new edition of Ruby Under a Microscope that covers Ruby 3.x. I'm working on this in my spare time, so it will take a while. Leave a comment or drop me a line and I'll email you when it's finished.
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Why I Program in Lisp
A blog about computers, functional languages, Lisp, and Scheme.
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Haskell: A Great Procedural Language
These sound like dismissals or absurdities from the outside, but once you learn what they really mean, they take on a new light. In this article, I want to explain the third. (See the appendix if you are curious about the first two.)
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SPy: An interpreter and compiler for a fast statically typed variant of Python
Antonio Cuni's blog
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Revisiting "Let's Build a Compiler"
There's an old compiler-building tutorial that has become part of the field's lore: the Let's Build a Compiler series by Jack Crenshaw (published between 1988 and 1995).
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Typed languages are better suited for vibecoding
My >10 year old programming habits have changed since Claude Code launched. Python is less likely to be my go-to language for new projects anymore. I am managing projects in languages I am not fluent in—TypeScript, Rust…
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Why don't you use dependent types?
To be fair, nobody asks me this exact question. But people have regularly asked why Isabelle dispenses with proof objects. The two questions are essentially the same, because proof objects are intrinsic to all the usual type theories. They are also completely unnecessary and a huge waste of space. As described in an…
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“ZLinq”, a Zero-Allocation LINQ Library for .NET
I’ve released ZLinq v1 last month! By building on structs and generics, it achieves zero allocations. It includes extensions like LINQ to…
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Writing your own BEAM
This is my Code BEAM Europe 2025 talk, converted to a blogpost.
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How to program a text adventure in C
This is not a C tutorial; there are plenty of those on the web. The reader is assumed to have some basic knowledge of programming in general, and preferrably the C programming language in particular. Maybe you just finished reading a tutorial somewhere, and you would like to learn some more about programming by…
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Scala 3 slowed us down?
Is this clickbait? Not really. Is this the fault of the language or the compiler? Definitely not. Rather, it was part of a rushed migration. Sharing the lessons learned in the process.
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Learning C3
Learning the C3 programming language
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The borrowchecker is what I like the least about Rust
Rust's borrowchecker comes with real downsides
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Why Elixir? Common misconceptions
Why Elixir is not just a good platform for modern development, but a great one - addressing common misconceptions