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Rust in an Instant
Personal website of Jan-Erik Rediger
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,826 posts.
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Practical Reed-Solomon for Programmers
Recently I was doing some work decoding the new Galileo High Accuracy Service data. In short, this new service will allow Galileo (“European GPS”) users to achieve decimeter-level accuracy, which is nice. This “HAS” data is transmitted highly redundantly by making good use of Reed-Solomon encoding. To work with this…
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Redux – Not Dead Yet
Some clarification on what's going on with Redux
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Python 3 is killing Python
The Python community should fork Python 2.
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Java is fast, code might not be
Fixing common Java anti-patterns took an app from 1,198ms to 239ms. Eight patterns that compile fine and pass code review but silently drain CPU and balloon heap, with benchmarks and code fixes for each
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Boring Python: Code quality
This is the second in a series of posts I intend to write about how to build, deploy, and manage …
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They don't make 'em like that any more: Borland Turbo Pascal 7
Why half a million people learned to program in Pascal, when you’d think they had no earthly reason to.
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gRPC: The Bad Parts
gRPC isn't perfect but who is?
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Clojure will affect the way you think about programming
I sometimes get asked for recommendations of what programming language to "learn next". It's great that folks appreciate the fact that being exposed to several sufficiently different programming languages is an important step on the path to programming enlightenment. But it's also true that, given limited free time…
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uv downloads overtake Poetry for Wagtail users
uv download statistics overtake Poetry for Wagtail users
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Starting a TypeScript Project in 2021
This is a guide for starting a TypeScript project in 2021 with modern tooling. TypeScript 4 Optionally esbuild to bundle for browsers (and Node.js) Linting with typescript-eslint (tslint is deprecated) Testing with Jest (and ts-jest) Publishing a package to npm Continuous integration (GitHub Actions / GitLab CI)…
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Podman vs. Docker: Comparing the two containerization tools
Containers offer portable, lightweight environments for developing and deploying applications. And while Docker has been the most popular containerization tool, Podman has arisen as a compelling alternative. What sets the two tools apart, and when should you use one over the other? Find out in this tutorial comparing…
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Thoughts on Rust, a few thousand lines in
To say my first foray into Rust was a frustrating struggle would be an understatement. I picked a terrible first project that left me neck deep in Rust’s trickiest areas right off the bat. I was excited to try again. A few years ago I wrote Sumoshell, a CLI App for log analysis. I’d wanted to improve it for a while…
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Leap seconds: Causing bugs even when they don’t happen
Some new minor leap second drama is coming up, and for once we can
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How the clipboard works
Reading how copy-paste works from the Wayland specification is non-trivial unless you understand a lot of how desktop computing works and Wayland internal. It took me quite a while to figure it all out, though once you get there, it seems quite obvious.
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Your computer is a distributed system
Many have observed that today's computers are distributed systems implementing the abstraction of the shared-memory multiprocessor. The wording in the title is from the 2009 paper " Your computer is already a distributed system. Why isn't your OS? ". Some points from that and other sources:
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Apple’s WWDC-Closing ‘Fuck You’ to iPhone Developers
Link to: http://www.marco.org/122990476
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MCP doesn't need tools, it needs code
Exploration into providing MCPs with the most powerful of all tools: code.
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Window Activation
You click a link in your chat app, your browser with a hundred tabs comes to the front and opens that page. How hard can it be? Well, you probably know by now that Wayland, unlike X, doesn’t let one application force its idiot wishes on everyone else. In order for an application to bring its window to the front, it…
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Farewell Pandas, and thanks for all the fish
the portable Python dataframe library
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Connect() – a new API for creating TCP sockets from Cloudflare Workers
Today, we are excited to announce a new API in Cloudflare Workers for creating outbound TCP sockets, making it possible to connect directly to databases and any TCP-based service from Workers
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Making TRAMP faster
I recently changed jobs and found myself in a position where I would need to do a lot of work on remote machines. Since I am Emacs user, the most common way to do this is using TRAMP (Transparent Remote access, Multiple Protcol). TRAMP is an Emacs package that let’s you treat a remote host like a local system, similar…
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Using LLM for confidence scoring is a bad idea
LLM-based agents can do a lot of tasks. Or, at least, they can appear to do them. For example, they write code, summarize papers, plan trips, and fill in forms. If you ask one for a probability or a confidence score, it will give you one of those too. I have seen many agent designers use LLMs to generate confidence…