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Understanding ECDSA
Exploring blockchain, math, and smart contracts through a security lens.
New
The latest blog posts to take off on Hacker News. 4,109 posts.
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Kohler Can Access Pictures from "End-to-End Encrypted" Toilet Camera
Claimed end-to-end privacy doesn’t fully conceal your rear-end data
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LLM from scratch, part 28 – training a base model from scratch on an RTX 3090
I felt like it should be possible to train a GPT-2 small level model on my own hardware using modern tools and open datasets from scratch. It was!
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100k TPS over a billion rows: the unreasonable effectiveness of SQLite
A blog mostly about Clojure programming
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Kids who ran away to 1960s San Francisco
I followed my curiosity and ended up at the library reading hundreds of letters of runaway teenagers who came to hippie San Francisco
366
Gundam is just the same as Jane Austen but happens to include giant mech suits
A friend recently asked how to get started watching Gundam, and as I tripped all over myself, equal parts excitement and not wanting to sound like a
367
Proximity to coworkers increases long-run development, lowers short-term output (2023)
Revise and resubmit, Quarterly Journal of Economics
368
A series of vignettes from my childhood and early career
When I was younger, I really liked programming! I loved the sense of accomplishment, I loved the problem solving, I loved sharing what I made with the people around me to both amuse and assist.
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Addressing the adding situation
We learn why adding on x86 isn't as obvious as you might think
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Advent of Compiler Optimisations 2025
Announcing AoCO 2025 - daily December posts about compiler optimisations
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Comparing AWS Lambda ARM64 vs. x86_64 Performance Across Runtimes in Late 2025
See how AWS Lambda arm64 stacks up against x86_64 in real-world benchmarks across CPU, memory, and I/O workloads using Node.js, Python, and Rust.
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Rootless Pings in Rust
Sending a ping by creating an ICMP socket normally requires root: you can’t create a raw socket to send ICMP packets without it. The ping command line tool works without root however, how is that possible? It turns out you can create a UDP socket with a protocol flag, which allows you to send the ping rootless. I…
373
Last Week on My Mac: Losing confidence
What was the key to successfully learning to drive, ride a bike, or speak a foreign language? Confidence, and it’s every bit as important in computing, and in macOS.
374
Constructing the Word's First JPEG XL MD5 Hash Quine
A walk through of building an image that displays its own MD5 Hash
375
The healthcare market is taxing reproduction out of existence
The healthcare market is taxing reproduction out of existence.
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Mozilla's latest quagmire
Defending Mozilla’s inclusion of AI features and tooling in Firefox misses the point, and only threatens to isolate them further.
377
Sycophancy is the first LLM "dark pattern"
People have been making fun of OpenAI models for being overly sycophantic for months now. I even wrote a post advising users to pretend that their work was…
378
Tides are weirder than you think
Our world relies on the sea more than ever: 80% of goods traded worldwide move by ship. Today’s mariners take it for granted that they can get an accurate chart of the tides for any location on Ear…
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Response to "Ruby Is Not a Serious Programming Language"
[5 min read] The question Sheon Han poses — “Is Ruby a serious programming language?” — says a lot about what someone thinks programming is supposed to fee...
381
A new AI winter is coming?
Though LLMs had a lot of promise, this has not been demonstrated in practice. The technology is essentially a failure, and a new AI winter is coming.
382
Google unkills JPEG XL?
A quick summary of the format's road to stardom
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Google, Nvidia, and OpenAI
OpenAI and Nvidia are both under threat from Google; I like OpenAI’s chances best, but they need an advertising model to beat Google as an Aggregator.
384
A vector graphics workstation from the 70s
A bit of history and a repair of a Tektronix 4051 graphical computer from 1975. What was this computer's place in history, what was it used for and what parts exploded when turning it on.
385
Why xor eax, eax?
Why do compilers love xor-ing registers so much?
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Idempotency keys for exactly-once processing
In distributed systems, there’s a common understanding that it is not possible to guarantee exactly-once delivery of messages. What is possible though is exactly-once processing. By adding a unique …
387
Self-hosting a Matrix server for 5 years
Experiences with the Matrix protocol, Matrix Synapse server, bridges, and Element mobile apps.
388
It’s been a very hard year
Unlike a lot of places in tech, my company, Set Studio/Piccalilli has no outside funding. Bootstrapped is what the LinkedIn people say, I think. It’s been a hard year this year. A very hard year. I think a naive person would blame it all on the seemingly industry-wide attitude of “AI can just do this […]
389
Stacked Diffs with git rebase —onto
Using git `rebase --onto` workflow to work with stacked diffs
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Search tool that only returns content created before ChatGPT's public release
https://slopevader.com/ A search tool and browser extension for avoiding AI slop. Available for Chrome or Firefox. The tool filters web...