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Engineers Need to Write
I hated writing in high school.
New
The latest blog posts to take off on Hacker News. 80,919 posts.
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Reliability via Automated Renewal Information
The Let’s Encrypt team is excited to announce that ACME Renewal Information (ARI) is live in production! ARI makes it possible for our subscribers to handle certificate revocation and renewal as easily and automatically as the process of getting a certificate in the first place. With ARI, Let’s Encrypt can signal to…
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March 20 ChatGPT outage: Here’s what happened
An update on our findings, the actions we’ve taken, and technical details of the bug.
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CSS System Colors (2021)
In another episode of “I’ve been a web designer for how long and am only now learning about this?” let’s talk about CSS system colors. Background On my blog, I…
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Kobold, a new web UI crate with zero-cost static DOM
The TodoMVC implemented in Kobold weighs about 30kb when gzipped over the wire, out of which the gzipped Wasm blob is under 20kb. There are no tricks there . I haven't replaced the default allocator, nor have I minified the JavaScript (although I probably should).
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Post-GPT Computing
Is software done now? Processing the the ChatGPT Plugins announcement.
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Hello Dolly: Democratizing the magic of ChatGPT with open models
Introducing 'Hello Dolly,' a project to democratize AI by integrating ChatGPT and open models, making advanced AI accessible to everyone.
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Comparing Hobby PCB Vendors
An not-for-profit roundup of affordable PCB manufacturers. Originally published in 2023 and last updated January 2026.
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Understanding Glibc Malloc (2015)
I always got fascinated by heap memory. Questions such as How heap memory is obtained from kernel? How efficiently memory is managed? Is it managed by kernel or by library or by application itself?…
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Why take a compiler course? (2010)
[…] Embedded in Academia : Why Take a Compiler Course? – Seconded, or whatever – my compiler course was briefer than I'd have liked but many of my peers didn't take it and I spent ages explaining what I thought where simple concepts to them when working on group projects and the like. […]
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The venture capitalist's dilemma
The embarrassing investor meltdown surrounding Silicon Valley Bank should drive us to consider new models.
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We updated our RSA SSH host key
At approximately 05:00 UTC on March 24, out of an abundance of caution, we replaced our RSA SSH host key used to secure Git operations for GitHub.com.
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Introduction to P vs. NP
Series Introduction In this series of articles I would like to share with you a set of ideas that are meant to help non-technical people build a better intuition as to what the current software and…
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How to read Hacker News threads with most recent comments first
Hacker News displays comments in a tree. This can be frustrating if you want to keep track of a particular conversation, as you constantly have to seek through the tree to find the latest comment.
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I bought back my acquihired startup
I wrote about my language learning startup, Readlang , back in 2014 , and then again in 2016 , both times attracting attention on Hacker News, where my story of a struggling one-man startup seemed to resonate. Well, it’s now 7 years later, and a bunch has happened since, so it’s time for an update…
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How to start a React Project in 2023
React starter kits (Vite, Next, Astro, Remix, React Router) which help React developers to start a React project in 2025 ...
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How to use Alpaca-LoRA to fine-tune a model like ChatGPT
Low-rank adaptation (LoRA) is a technique for fine-tuning models that has some advantages over previous methods:
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AI’s compute fragmentation: what matrix multiplication teaches us
AI is powered by a virtuous circle of data, algorithms (“models”), and compute. Growth in one pushes needs in the others and can grossly affect the developer experience on aspects like usability and performance. Today, we have more data and more AI model research than ever before, but compute isn’t scaling at the same…
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ChatGPT can now call Wolfram Alpha
Wolfram plugin gives computationally accurate answers to ChatGPT queries using Wolfram's data knowledgebase and language. Custom visualizations are given as well. Stephen Wolfram explains how it works.
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ChatGPT Plugins
We’ve implemented initial support for plugins in ChatGPT. Plugins are tools designed specifically for language models with safety as a core principle, and help ChatGPT access up-to-date information, run computations, or use third-party services.
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Butler Virtual Operating System
This post introduces [[butler]], a virtual operating system that runs multi-players applications on the web. In two parts, I present:
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A quick and sobering guide to cloning yourself
It took me a few minutes to create a fake me giving a fake lecture.
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Block: Inflated user metrics and “frictionless” fraud facilitation
Initial Disclosure: After extensive research, we have taken a short position in shares of Block, Inc. (NYSE: SQ). This report represents our opinion, and we encourage every reader to do their own due diligence. Please see our full disclaimer at the bottom of the report.
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Cheating is All You Need
There is something legendary and historic happening in software engineering, right now as we speak, and yet most of you don't realize at all how big it is.
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Fascination of Awk
I describe why AWK is great for prototyping and is often the best alternative to the shell and Python
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Juice
Notes about creative coding on the Web.
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The drama in trying to convert election PDFs to Spreadsheets
Personal Blog of Mark Essien