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Learn Haskell Fast and Hard
I really believe all developers should learn Haskell. I don’t think everyone needs to be super Haskell ninjas, but they should at least discover what Haskell has to offer. Learning Haskell opens your mind.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,208 posts.
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The State of Software Security in 2019
My goal in this post is to skim my observations on the state of software design and development over the past year, and to try to find a meaningful way forward for myself for 2019. My perspective is limited by the fact that I have worked exclusively in client-side software security for the past 7.5 years. Still, I…
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Why and How I Got My Own ASN
In this article, I'll explain how, and why I acquired an Autonomous System Number and some IPv6 addresses.
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A Mind Is Born (2017)
Making a demo in just 256 bytes would be a formidable challenge regardless of platform. A Mind Is Born is my attempt to do it on the Commodore 64. In the absence of an actual 256-byte compo, it was submitted to the Oldskool 4K Intro compo at Revision 2017 , where it ended up on 1st place.
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Becoming a Full-Time Creator as a Software Engineer
I'm a full-time creator. With remote work becoming more common in tech, I get more messages from people asking: how can they do what I do?
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Announcing Amber.js
A little over a year ago, I got my first serious glimpse at SproutCore, the JavaScript framework Apple used to build MobileMe (now iCloud). At the time, I had worked extensively with jQuery and Rails on client-side projects, and I had never found the arguments for the "solutions for
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How an empty S3 bucket can make your AWS bill explode
Imagine you create an empty, private AWS S3 bucket in a region of your preference. What will your AWS bill be the next morning?
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Using Podman, Compose and BuildKit
For my day job , I need to build and run a Docker Compose project. However, because Docker doesn’t play well with nftables and I prefer a rootless + daemonless approach, I’m using Podman .
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Googlebot’s JavaScript random() function is deterministic
I was conducting some experiments on how Googlebot parses and renders Javascript, and I came across a couple of interesting things about the way it does so. The first…
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I finally understand Cloudflare Zero Trust tunnels
Everything you wanted to know about using Cloudflare Zero Trust Argo tunnels for your personal network
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Hacking the largest airline and hotel rewards platform (2023)
Between March 2023 and May 2023, we identified multiple security vulnerabilities within points.com, the backend provider for a significant portion of airline and hotel rewards programs. These vulnerabilities would have enabled an attacker to access sensitive customer account information, including names, billing…
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Discord Desktop App RCE
A few months ago, I discovered a remote code execution issue in the Discord desktop application and I reported it via their Bug Bounty Prog...
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The benefits of learning in public
Learning in public helps me grow as an engineer and seems to benefit others too. Here's why I should do more.
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Letter to Myself in Late 2008
[I originally wrote and distributed this post to Y Combinator founders and have been encouraged to share it publicly, so here it is.]
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Open Source Speech Recognition
I’m currently working on the Vaani project at Mozilla, and part of my work on that allows me to do some exploration around the topic of speech recognition and speech assistants. After looking at some of the commercial offerings available, I thought that if we were going to do some kind of add-on API, we’d be best off…
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Strace – My Favourite Secret Weapon (2011)
I’m often asked in my technical troubleshooting job to solve problems that development teams can’t solve. Usually these do not involve knowledge of API calls or syntax, rather some kind of insight into what the right tool to use is, and why and how to use it. Probably because they’re not taught in college, developers…
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Microgpt explained interactively
Walk through Karpathy's 200-line GPT from scratch. Tokenize names into integers, watch softmax convert scores to probabilities, step through backpropagation on a computation graph, explore attention heatmaps, and see a tiny model learn to generate plausible names.
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Instagram's URL Blackhole
While exploring the file system on a jailbroken iPhone 6s, I stumbled upon an interesting folder:
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