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I can see your local web servers
How many web servers are running on your machine right now? Do all of those development web servers have a secure login, and restrictive CORS permissions? You don’t know? Allow me to check for you:
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At what time of day do famous programmers work?
I was curious when the famous programmers do their work. And it is quite easy to find. The result of programmers work is a code. Code is stored in version control systems (VCS). When you put code in VCS the time is record.
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Off-Grid Cyberdeck: Raspberry Pi Recovery Kit
Short, medium, and long form tech projects. Detailed photos and build logs with benefits for paid subscribers.
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Why I Write Games in C (yes, C)
I am an unusual beast. All my solo project games I've been making recently have been written in 'vanilla' C. Nobody does this. So I think it might be interesting to explain why I do.
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Parse, Don’t Validate
Historically, I’ve struggled to find a concise, simple way to explain what it means to practice type-driven design. Too often, when someone asks me “How did you come up with this approach?” I find I can’t give them a satisfying answer. I know it didn’t just come to me in a vision—I have an iterative design process…
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The Hand Licking Incident
When my oldest son was seven and in second grade, we were living in Kansas. Some time after the school year started, he began licking his ha...
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Lesser Known Coding Fonts
In the past few months, I’ve become interested—fascinated even—by programming fonts. As programmers we look at text all day: code, logs, command outputs, monitoring tools, etc. If we’re going to be looking at text all day, we might as well make it easy and pleasant for our eyes to read that text.
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When your data doesn’t fit in memory: the basic techniques
You can process data that doesn’t fit in memory by using four basic techniques: spending money, compression, chunking, and indexing.
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Going Solo, Successfully
Three years ago I quit my job and started consulting full time . It's worked out really well. I get to spend more time doing things I like to do and I've been able to deliver great products for clients. I wanted to go over some tips for starting a successful consulting business.
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An Illustrated Guide to Useful Command Line Tools
A short description and screenshot of some useful command line tools I use that aren't part of typical POSIX environment.
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Network protocols for anyone who knows a programming language
The network stack does several seemingly-impossible things. It does reliable transmission over our unreliable networks, usually without any detectable hiccups. It adapts smoothly to network congestion. It provides addressing to billions of active nodes. It routes packets around damaged network infrastructure…
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Every productivity thought I've ever had, as concisely as possible
I combed through several years of my private notes and through everything I published on productivity before and tried to summarize all of it in this post. If you’re unproductive right now Here’s what you should do if you’ve been procrastinating for an entire day: Accept that you won’t do anything today and try not to…
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Making My Own Glasses
A biohacking health story about making custom glasses after conflicting eye test results from two opticians and an eye doctor for a pilot’s license exam.
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Open source collaborative text editors
For years now I've had this itch, trying to find the "perfect" collaborative text editor. But not just any collaborative text editor, oh no, my speciality is finding (well, at least looking for) open source real-time collaborative web-based rich text editors...
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Strong_password Rubygem hijacked
I recently updated minor and patch versions of the gems our Rails app uses. We want to keep dependencies fresh, bugs fixed, security vulnerabilities addressed while maintaining a high chance ...
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Privacy analysis of Tiktok’s app and website
I did a detailed privacy check of the app TikTok and its corresponding website. Multiple law infringements, trust, transparency and data protection breaches were found.I provide all technical an
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OnionShare makes it easy to publish anonymous, uncensorable websites
I’m excited to announce that OnionShare 2.2 is released! You can download it from onionshare.org. When I first wrote OnionShare in 2014, it let you anonymously and securely send files to people. It worked like this: OnionShare zips up the files, starts a local web server on
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PCI Express on the Raspberry Pi 4
After the daily dose of Hackaday - and with an idea that seemed very doable, and actually, with some improvements can be easily reproducible.
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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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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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Open source firmware is important for security
Why open source firmware is important for security.
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Redesigning GitHub Repository Page
Better design for Github repository page
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Preserving Laptop Stickers on MacBooks
This is now a thing! Here is the follow-up post, containing the details. Join the Kickstarter here! Even better news, this is now not just a thing, but an actual physical product! Please check out LidLayer.com Preface I’ve always liked the idea of putting stickers on my MacBook Pro, but have always avoided it for two…