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Retool Database
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The latest blog posts to take off on Hacker News. 589 posts.
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How to draw dotted lines on chalkboards, MIT style (2021)
Archived MIT Admissions blog post 'how to draw dotted lines on chalkboards, mit style,' published May 20, 2021. Preserved for historical context; not maintained as current admissions policy.
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Treat your to-read pile like a river, not a bucket
I'm going to take a wild guess here and say that you, like me, have a large pile (or digital equivalent) of books or articles you've been meaning to get around to reading, plus maybe a long queue of podcast episodes to which you'd love to listen, if only you had the time. It's the archetypal "first-world problem", I…
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Apple passwords deserve an app
First, let’s consider three random tweets: They already have. They definitely should. They seemingly won’t… but why? We all know that Apple has nice built-in password management in macO…
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A Short 100-Question Diligence Checklist
Plus! Bank Capital; Where Venture Funding is Squeezed; Free Shipping and Marginal Costs; Chinese Apps and Data Advantages; Many Funnels; Diff Jobs
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Writing a Profiler in 240 lines of pure Java
A few months back, I started writing a profiler from scratch, and the code since became the base of my profiler validation tools. The only problem with this project: I wanted to write a proper non-safepoint-biased profiler from scratch. This … Continue reading →
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Superhuman: What can AI do in 30 minutes?
AI multiplies your efforts. I found out by how much...
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ChatGPT and Code Interpreter = Magic
tl;dr: OpenAI is testing the ability to run code and use third-party plugins in ChatGPT. OpenAI has announced that we’re developing plugins for ChatGPT that will extend its capabilities. [Link] Plu…
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The Anti-Productivity Manifesto
After a barrage of recommendations on my twitter, I finally ended up reading Oliver Burkeman’s Four Thousand Weeks. The central premise of the book is simple: everyone has got about four thousand weeks to live, and spending that limited time chasing efficiency is wrongheaded. The message seems old. The entire…
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Docker
Lately I tend to stick to topics that are historic by at least twenty years, and that does have a lot of advantages. But I am supposedly a DevOps professional, and so I will occasionally indulge in giving DevOps advice... or at least opinions, which are sort of like advice but with less of a warranty.
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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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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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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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Unpopular Opinion: Don’t Use a Raspberry Pi for That
A Raspberry Pi is great if you have a need for which it excels. GPIO, extremely low power requirements, tight space constraints. But the Pi should not be the first thing you reach for when “U…
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Pytest Tips and Tricks
This is a set of tips/tricks for learning and using pytest.
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A ChatGPT Emacs Shell
UPDATE: has evolved a bit and is now on MELPA. I had been meaning to give ChatGPT a good try, preferably from Emacs. As an eshell fan, ChatGPT seemed ...
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So you've installed `fzf` – now what?
Software engineers are, if not unique, then darn near unique in the ease with which we can create tools to improve our own professional lives; this however can …
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Bing Image Creator
Last month we introduced the new AI-powered Bing and Microsoft Edge, your copilot for the web – delivering better search, complete answers, a new chat experience and the ability to create content. Already, we have seen that chat is reinventing how people search with more than 100 million chats to date. We’ve seen…
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Laying Out a Print Book with CSS
In which I embark on a quixotic quest to make a physical book using web rendering technology.
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Bracketed paste mode (2013)
One of the least well known, and therefore least used, features of many terminal emulators is bracketed paste mode . When you are in bracketed paste mode and you paste into your terminal the content will be wrapped by the sequences \e[200~ and \e[201~ .
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Bitwarden PINs can be brute-forced
Video showing bitwarden. User then sets the pin 2345. The vault is locked and then bitwarden is quit. In the terminal the exploit program is run, which after a short while outputs the PIN 2345.
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JPEG-XL vs. AVIF and Others: 27 Images Compared
The current debate surrounding AVIF versus JPEG XL needs some third-party quantitative data to support arguments on either side. I've compiled a dataset of 27 high-resolution photographic images to compare performance across them all at a wide fidelity range.
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Analyzing multi-gigabyte JSON files locally
I’ve had the pleasure of having had to analyse multi-gigabyte JSON dumps in a project context recently. JSON itself is actually a rather pleasant format to consume, as it’s human-readable and there is a lot of tooling available for it. JQ allows expressing sophisticated processing steps in a single command line, and…
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Anki-fy your life
Creating a subconscious problem-solving framework.
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Thoughts on Video Editing (2022)
I’ve been thinking about editing for the last 5 years. Not just thinking, also editing. Trying out what works. You may have noticed different editing styles in the 65 videos I have posted to …
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How to own your own Docker Registry address
As you may have seen, Docker Hub made a dramatic shift in policy this week, and effectively gave a 30 day eviction notice to almost all community-run images. ...