6481
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.
New
The latest blog posts to take off on Hacker News. 80,820 posts.
6482
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…
6483
Decreasing Certificate Lifetimes to 45 Days
Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028. This change is being made along with the rest of the industry, as required by the CA/Browser Forum Baseline Requirements, which set the…
6484
Nimony (Nim 3.0) Design Principles
Nimony is a new compiler for a variant of Nim which will become Nim 3.0, eventually. However, Nim is a big language so replicating what it does will take its time.
6485
AI agents find $4.6M in blockchain smart contract exploits
On a benchmark of real exploited contracts, AI agents found vulnerabilities worth a combined $4.6 million, underscoring the need for AI-powered defense.
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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.
6487
Constructing the Word's First JPEG XL MD5 Hash Quine
A walk through of building an image that displays its own MD5 Hash
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John Giannandrea to retire from Apple
John Giannandrea is retiring, and Amar Subramanya joins as vice president of AI.
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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.
6491
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…
6492
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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High-income job losses are cooling housing demand
Which local economies sustain housing? We analyze Charlotte's job boom vs. Austin/Denver slowdowns. High-wage contractions impact for-sale demand.
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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...
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All about automotive lidar
A comprehensive overview of automotive lidar technology — what lidar measures, how it measures distance, and how it determines bearing.
6497
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.
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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.
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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.
6501
WhatsApp will become interoperable with other messaging apps in Europe
WhatsApp users in Europe will soon have the possibility to message users of other services.
6502
Why xor eax, eax?
Why do compilers love xor-ing registers so much?
6503
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 …
6504
1GB Raspberry Pi 5, and memory-driven price rises
A new 1GB Raspberry Pi 5 maintains access to low-cost computing amid memory-driven price rises on some other Raspberry Pi products.
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Self-hosting a Matrix server for 5 years
Experiences with the Matrix protocol, Matrix Synapse server, bridges, and Element mobile apps.
6507
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 […]
6508
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...
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Bikeshedding, or why I want to build a laptop
I’m sure I’m not the only one who feels Apple’s quality is degrading. I spend 10 hours a day on my laptop and would spend any amount of money within reason for a better one. However, everything comes with tradeoffs.