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I did Advent of Code on a Playstation
How far can I get in Advent of Code if I do all the problems in Dreams?
New
The latest blog posts to take off on Hacker News. 1,001 posts.
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Should small Rust structs be passed by-copy or by-borrow? (2019)
Benchmarking Rust to determine if small structs should be passed by-copy or by-value.
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A taste of pavex, an upcoming Rust web framework
A preview of `pavex`, an upcoming Rust web framework built around compile-dependency injection. An attempt to combine great development ergonomics with high runtime performance.
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Why “OpenBSD Mastery: Filesystems” Is Not in Amazon’s Kindle Store
You can get OpenBSD Mastery: Filesystems for Kindle direct from me at Tilted Windmill Press or at Gumroad . You can get a Kindle-friendly ebook from any number of other retailers, but while they’re all supposed to be DRM-free I can’t advise on prying the file out of another vendor’s ecosystem. The one place you cannot…
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Raspberry Pi security alarm – the basics
In November last year — I started building a DIY security alarm system, using a Raspberry Pi as the controller. My plan was to make a self-sustained system, using proper alarm hardware — like PIR sensors and sirens. Integration with Home Assistant would be an add-on, not a requirement. I wanted the system to be as…
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Why I'm still using Python
16 years and counting...
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An M1 for Curl
A generous member of the wider curl community stepped up and donated an unused Mac mini m1 model to me to be used for curl development. Today it arrived at my home. An 8C CPU/16GB/1TB/8C GPU/1GbE model as per the sticker on the box. The m1 mac mini, still wrapped in plastic. Apple is not … Continue reading An m1 for…
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ULIDs and Primary Keys
Not all non-sequential primary keys are created equal, the ULID format is a fantastic substitute for the typical UUIDv4 choice.
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SQLite's Automatic Indexes
SQLite's optimizer creates indexes automatically to improve query performance with only nested loop joins.
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26 Programming Languages in 25 Days
Since making a sudden leap from computer science to academic medicine about seven years ago, I haven’t programmed as much.
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SQL + M4 = Composable SQL
I often work with clients who have large “data lakes” or big star schema style enterprise databases with fact and dimension tables as far as the eye can see. Invariably said clients end up with a substantial SQL codebase composed of hundreds of independent queries with lots of overlap between them. I want to be able…
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Saying “sup” with `net send`
When I was in junior high, my friends and I discovered that a Command Prompt command called net send was enabled on our school network. AIM and similar services were blocked, but if we wanted to send messages to each other we could open up the Command Prompt and type something like: net send lab2126-24 test and get an…
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A Guide to the Terminal, Console, and Shell
The terminal is the result of its history, from the telegram to our terminal emulators. What is the difference with a console? The shell?
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Extending Python with Rust
Sometimes a pure Python script can't just deliver the performance we need. When that's the case we have to resort to writing our logic in a "fast" compiled language like C or Rust and expose the function with through a Python module. This way we get the best of both worlds. Today I focus on how to use Rust for writing…
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Benchmarking Ruby 2.6 to 3.2
The yearly benchmarking Ruby post
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I wrote a Ruby extension in Zig
Just my website. Some Elixir, some Ruby, some more exotic languages and general thoughts on tech.
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All I want for Christmas is these seven TypeScript improvements
It's Christmastime and I've been happily working through this year's Advent of Code in Deno (look forward to a blog post in the new year). What with all the presents, it's a good time to think about what we'd most like to see from TypeScript in the new year. Here are my top seven feature requests for 2023. Yes, that's…
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Win16 Retro Development
Several months ago I had a go at producing a high resolution 256-color driver for Windows 3.1. The effort was successful but is not yet complete. Along the way I re-learned many things I had forgotten, and learned several new ones. This blog entry is based on notes I made during development.
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Challenging algorithms and data structures every programmer should try
Bored of algorithms? Here are my recommendations that are exciting, understandable, and sometimes even useful!
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Nix and NixOS, my pain points
Posts and writings by Rémy Grünblatt 🍃
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For Want of a JOIN
Once upon a time, I was on a small team tasked with building a data pipeline. On this team was someone we’ll call Bob, who was fresh out of grad school and hadn’t had much experience with software engineering, and no experience with SQL. As part of this data pipeline, Bob had to combine the data from two tables. JOIN…
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The pocket guide to debugging
New zine: The Pocket Guide to Debugging
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Avoid exception throwing in performance-sensitive code
There are various ways in software to handle error conditions. In C or Go, one returns error code. Other programming languages like C++ or Java prefer to throw exceptions. One benefit of using exceptions is that it keeps your code mostly clean since the error-handling code is often separate. It is debatable whether…
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Programming as Play
I often want to program something just for fun without any expectations. But why? Well, a recent scientific paper investigated this idea of programming as play.
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This year in LLVM
Towards the end of last year, I switched from working on PHP at JetBrains, to working on LLVM at Red Hat. While it was already under discussion beforehand, this catalyzed the creation of the PHP foundation , which now pays multiple people to work on PHP. Special thanks for this go to Roman Pronskiy, who did most of…