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26 programming languages in 25 days, Part 2: Reflections on language design
I recently wrote about completing Advent of Code 2022 using a different programming language (or two) every day for 25 days.
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Software horror show: SAP Concur
From the highly eclectic blog of Mark Dominus
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Zig language server and cancellation
I already have a dedicated post about a hypothetical Zig language server. But perhaps the most important thing I've written so far on the topic is the short note at the end of Zig and Rust.
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Setting the TZ environment variable avoids thousands of system calls (2017)
In this article, you can find how setting the TZ environment variable can prevent thousands of system calls.
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Urllib3 in 2022
Funding In total urllib3 received $26,615 USD in financial support and distributed $18,622 USD to maintainers and community contributors. We're thankful for the financial support we receive from o...
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Onyx, a new programming language powered by WebAssembly
# What is Onyx? **Onyx** is a new programming language featuring a modern, expressive syntax, strict type safety, blazingly-fast build times, and out-o...
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Finding Java Thread Leaks with JDK Flight Recorder and a Bit of SQL
The other day at work, we had a situation where we suspected a thread leak in one particular service, i.e. code which continuously starts new threads, without taking care of ever stopping them again. …
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Demystifying Apache Arrow (2020)
Demystifying Apache Arrow - some observations from a data scientist. Learning more about a tool that can filter and aggregate two billion rows on a laptop in two seconds
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RailsCasts Retrospective Part 1: The Fuel
Sixteen years ago to the day, I started RailsCasts, a screencast series teaching web development using Ruby on Rails. It began with free weekly episodes…
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Don’t teach during code reviews
In this post, I'll show you a common pitfall you should avoid when teaching during code reviews.
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PWAs in App Stores
Progressive Web Apps can be submitted to app stores like the Android Play Store or the Microsoft Store and more.
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The guide to software development with Guix
Blog posts about GNU Guix.
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A new F# compiler feature: graph-based type-checking
Graph-based type-checking is a new F# compiler flag that allows the compiler to type-check files in a project in parallel whenever possible.
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JEP 450: Compact Object Headers
Reduce the size of object headers in the HotSpot JVM from between 96 and 128 bits down to 64 bits on 64-bit architectures. This will reduce heap size, improve deployment density, and increase data locality.
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Curl 8.0.1
Right. I said in the 8.0.0 blog post that it might be a good release. It was. Apart form the little bug that caused it to crash in several test cases. So now we shipped curl 8.0.1, which is almost identical apart from a single commit that was reverted. Exactly why this was not discovered … Continue reading curl 8.0.1…
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Yet another E-Ink weather display – but with Rust
I made one of those e-ink weather displays that you see on tech blogs and hacker news sometimes. It can display the current weather, the temperature and precipitation forecast for the rest of the week, and my current and upcoming tasks from Todoist. It's powered by a couple NiMH AA …
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MailCrab
MailCrab is an email test server for development, written entirely in Rust.
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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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If Web Components are so great, why am I not using them?
Rem recently asked:
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A trick to eliminate 2π (sometimes)
As a physicist, I’ve learned that the presence of 2 π 2\pi 2 π [▼] [ Or rather τ \tau τ , as it should actually be called . ] in a formula usually spells trouble. It’s kind of annoying to write by hand, easy to forget, and it’s dimensionless, so you can’t easily check if you forgot to divide or multiply by it…
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Can a Rubik's Cube be brute-forced?
a personal blog
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Pytz: The Fastest Footgun in the West (2018)
An explanation of the differences between dateutil and pytz's time zone models and why people tend to misuse pytz and introduce bugs into their datetime code.
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My favorite prime number generator
Many years ago I've re-posted a Stack Overflow answer with Python code for a terse prime sieve function that generates a potentially infinite sequence of prime numbers ("potentially" because it will run out of memory eventually). Since then, I've used this code many times - mostly because it's short and clear. In this…
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Asyncio, twisted, tornado, gevent walk into a bar
... they pay, they leave, they drink, they order.
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Common Lisp: 2022 in review
And 2022 is over. The Common Lisp language and environment are solid and stable, yet evolve. Implementations, go-to libraries, best practices, communities evolve. We don’t need a “State of the Ecosystem” every two weeks but still, what happened and what did you miss in 2022?This is my pick of the…
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The Magic Nix Cache, a GitHub Action for speeding up your Nix workflows
Nix builds at speeds you never thought possible.