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From hacker to hospice in seven weeks
If you would like to help Steven, please donate to his family. He will not live to see his child born. Any amount is greatly appreciated.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,187 posts.
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Brave, the false sensation of privacy
ebin.city is a short 4-character .city domain available for buy. Listed at $100 — secure it before someone else does.
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A single line of code made a 24-core server slower than a laptop
Imagine you wrote a program for a pleasingly parallel problem, where each thread does its own independent piece of work, and the threads don’t need to coordi...
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1.5 TB of VRAM on Mac Studio – RDMA over Thunderbolt 5
Apple gave me access to this Mac Studio cluster to test RDMA over Thunderbolt, a new feature in macOS 26.2. The easiest way to test it is with Exo 1.0, an open source private AI clustering tool. RDMA lets the Macs all act like they have one giant pool of RAM, which speeds up things like massive AI models. The stack of…
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How some good corporate engineering blogs are written
I've been comparing notes with people who run corporate engineering blogs and one thing that I think is curious is that it's pretty common for my personal blog to get more traffic than the entire corp eng blog for a company with a nine to ten figure valuation and it's not uncommon for my blog to get an order of…
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Why did I spend 1.5 months creating a Gameboy emulator? (2017)
For me, the most favorite type of a computer program is an emulator. Being able to run code from a completely different hardware architecture always seemed like a magic. The old computers are great on their own, so this kind of connection between historic machines and the modern computing environment feels almost like…
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The cult of vibe coding is dogfooding run amok
Bad software is a choice you make
2533
Time to start de-Appling
I ‘ve done such a thorough job of de-Googling that I forgot to show up for a meeting with someone, because I hadn’t checked my Google calendar in ages. (No, they were not amused.) In my defense, I proceeded to explain to them that having de-Googled, I was also in the process of de-Appling, which is a special bonus…
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My startup banking story
As a relatively new member of adult society, and an absolute infant of the business world, I didn't think much about bank choice. I figured: you put money in, you take money out, they're all the same. I also figured a local branch of a global bank is just a fungible tentacle of the giant banking machine, so also…
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AI
Yesterday at lunch a friend asked me what tech trend he should pay attention to but was probably ignoring. Without thinking much I said “artificial intelligence”, but having thought about that a...
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Setting up a home VPN server with WireGuard
Motivation For a moderately security conscious geek like myself, there can be a number of reasons to want to set up a home VPN server: Accessing your home computer via screen sharing without exposing it to the Internet (and thereby to potential evil-doers). Accessing servers with IP white lists (common case for…
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The Product-Minded Software Engineer
Product-minded engineers are developers with lots of interest in the product itself. They want to understand why decisions are made, how people use the product, and love to be involved in making product decisions. They're someone who would likely make a good product manager if they ever decide
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Sinkholed
On 26 Nov 2019 at 14:55 UTC, I logged into my server that hosts my website to perform a simple maintenance activity. Merely three minutes later, at 14:58 UTC, the domain name susam.in used to host this website was transferred to another registrant without any authorisation by me or without any notification sent to me…
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The maths you need to start understanding LLMs
A quick refresher on the maths behind LLMs: vectors, matrices, projections, embeddings, logits and softmax.
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Spreadsheet formulas for personal finance
I love spreadsheets. Spreadsheet programs like Microsoft’s Excel, Apple’s Numbers and Google Sheets are the secret heroes of our civilization.
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Implementing a Neural Network from Scratch in Python
A simple explanation of how they work and how to implement one from scratch in Python.
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Homemade polarimetric synthetic aperture radar drone
Designing a cheap synthetic aperture radar mounted on FPV drone.
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ML promises to be profoundly weird
This is a long article, so I've broken it up into a series of posts, listed below. You can also read the full work as a PDF or EPUB .
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Most 16-year-olds don't have servers in their rooms
Hi, I’m Varun. I have a server in my room. Actually, I have two of them. And I write a ton of my own code for them. And I love it. This is a story documenting my homelab’s quiet beginnings, its spiralling evolution, and its uncertain future.
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How credit cards make money
Credit cards make money through net interest, interchange, fees, and marketing contributions.
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Facts every web dev should know before they burn out and turn to painting
Writing at the end of the world, from Hveragerði, Iceland
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Windows for Linux Nerds
A guide describing what I learned about Windows and the Windows kernel in my first week at Microsoft.