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FastSpark: A New Fast Native Implementation of Spark from Scratch
TLDR: Here is the code to explore.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 14,544 posts.
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The case for frameworks
I push back on Alex Russell's "Market for Lemons" post blaming JS frameworks and their advocates for poor mobile web performance. Developers aren't stupid or deceived: React dominates because of rational economics. Frameworks save developer time, enable hiring, and compound via ecosystems. Better frameworks, not fewer…
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BuckleScript: An OCaml to JavaScript compiler
RECENTLY I've been paying attention to the BuckleScript compiler from OCaml to JavaScript (ES5, to be exact). I'm seeing some significant a...
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The Opposite of Documentation is Superstition (2020)
Yes I know I'm technically on vacation but if I go too long without writing I die from a witch's curse and I don't want to work on longform projects For...
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A deep dive into Rust and C memory interoperability
An in-depth exploration of what happens when Rust and C memory allocators collide, featuring crash analysis.
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Data-Oriented Programming in Python
Many users of Python deprioritize performance in favor of soft benefits like ergonomics, business value, and simplicity. Users who prioritize performance typically end up on faster compiled languages like C++ or Java.
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Cord: Coordinating Trees of AI Agents
AI agents are good at doing one thing at a time. Give Claude a focused task and it performs. But real work isn’t one task. It’s a tree of tasks with dependencies, parallelism, and context that needs to flow between them.
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A horrifying globalThis polyfill in JavaScript
The globalThis proposal introduces a unified mechanism to access the global this in any JavaScript environment. It sounds like a simple thing to polyfill, but it turns out it’s pretty hard to get right. I didn’t even think it was possible until Toon blew my mind with an unexpected, creative solution.
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Announcing Masonry 0.1, and my vision for Rust UI
When I see the landscape of native GUI in 2022, I feel like something is missing.
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The plan-execute pattern
A ubiquitous pattern you won’t find in your textbook.
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Github is my resume
I remember the first time I heard that statement - a couple years back Eric Florenzano said it to me on Twitter when I posted my resume pub...
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Downloading files from S3 with multithreading and Boto3
Yesterday I found myself googling how to do something that I’d think it was pretty standard: How to download multiple files from AWS S3 in parallel using Python? After not finding anything reliable in Stack Overflow, I went to the Boto3 documentation and started coding. Something I thought it would take me like 15…
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React, Flux, RethinkDB and SageMathCloud – Summer 2015 Update
I've been using databases and doing web development for over 20 years, and I've never really loved any database before and definitely didn'...
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Haskell and floppy disks in Norwegian government
Update December 2015: This project has now ended and the floppy era is over - for me at least. The project has been featured quite a bit in the press and blogosphere. Most notably: BBC World Service (14min12sek in) CBC Spark Norwegian National Broadcasting (NRK) Dagbladet (national newspaper) While mass production of…
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O(N^2) in CreateProcess
So many possible introductions to this one: Windows 7: Sheesh, I sure am slow at creating processes Windows 10: Hold my beer… Or how about: A) How long does CreateProcess take on Windows? B) How lo…
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Zerocal – A Serverless Calendar App in Rust
<img src="https://endler.dev/2022/zer…
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YOYOZO: How I made a Playdate game in 39 KiB
2023-12-27—Ars Technica: YOYOZO wins GOTY accolade! almost unbelievable to be listed alongside such games as: Chants of Sennaar, Cocoon, Dave the Diver, Hu...
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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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Mono and Roslyn
Miguel de Icaza's Blog
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SIMD accelerated sorting in Java – how it works and why it was 3x faster
In this post I explain a little about how to use Java’s Vector APIs, attempt to explain how they turn out fast, and then use them to implement a sorting algorithm 3x faster than Arrays.sort . I then explain some problems I found, and how I resolved them. Supporting code is published here .
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I wrote a 231-byte Brainfuck compiler by abusing everything
We wrote a Brainfuck compiler back in April . That one developed a simple architecture to support multiple backends. Today, I want to write a new Brainfuck compiler. One that can only run on a single system, OpenBSD /amd64. And one that is as small as I can possibly make it. I broke into the sub-256 bytes club with my…
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You're missing your near misses
FAA data shows 30 near-misses at Reagan Airport – NPR, Jan 30, 2025 The amount of attention an incident gets is proportional to the severity of the incident: the greater the impact to the organizat…
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I ran Photoshop on a £0.60 computer chip
Colin's things that might be useful or interesting2026154 points49 commentsHardware & Electronics details
I've always had a fascination with simpler and low power computing. This lead me to run Photoshop on a 60 pence computer chip and it amazes me that this is possible.
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