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Cat Automatic Sprayer
If you have a cat, you know that sometimes his instincts push it to eat green eatable-looking plants, whatever they are, and whatever the consequences may be.
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The latest blog posts to take off on Hacker News. 391 posts.
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My MacBook Pro had over 10k USD in repairs
I treat my MacBook Pro laptop very well. It barely has a scratch and it’s never had any accidental drops or damage. Even so, my 4 years of owning it has resulted in:
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Kobol Team Is Pulling the Plug from “Helios64 Open Source NAS”
Kobol Blog. The Open Source NAS
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Turing Pi V2 is here
It’s been a long time since we announced the Turing Pi V2, but finally, we are ready to reveal all the details of the new cluster board. But first, we want to thank you all for your patience and for every feedback you gave us along the way. We appreciate the community’s input and support. […]
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Home Lab Hardware Guide
My home lab in a 12U rack as of March 2026. What is a Home Lab? Think of a home lab as a place where you can fail in the privacy of your own home. As
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Tesla Project Dojo Overview
A couple of days back, Ganesh Venkataramanan, leader of the Tesla Dojo project, announced the Dojo machine learning training system. It’s an unusually network rich, power dense, and memory light design. I’ve summarized the architecture of the system below but I found three aspects of the system particularly…
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Adventures using and repairing an X131e laptop from 2011
This article covers several repairs, one including reverse engineering the BIOS to allow replacement parts. Feel free to scroll down and skip to this content.
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286 vs. 386SX
The 386sx wasn't much of an upgrade from the 286, but was popular for a time. Let's take a look at the 286 vs 386sx, and what the SX offered.
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Reverse-engineering a vintage power supply chip from die photos
I recently did a PC power supply teardown so I figured it would be interesting to go deeper and see what happens inside the power supply'...
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Atlas robot does parkour
By training Atlas to maneuver its way through complex parkour courses, our engineers push the humanoid robot to its limits.
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Introducing the PineNote
This month brings news that many of you have been waiting years for - we’re introducing the PineNote, a high-end e-ink device based on the powerful Quartz64 single board computer. But the good news doesn’t end here, the PinePhone keyboard has entered production, developers have begun work on PinePhone’s back cases…
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JAMMA Video Standard
Everyone had their weird pandemic hobby, right? Well, mine is that I bought an arcade video game. Not the whole cabinet - just a board, to hook up ...
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Second IC
In 2018 I made the first lithographically fabricated integrated circuits in my garage fab. I was a senior in high school when I made the Z1 amplifier, and now I’m a senior in college so there are some long overdue improvements to the amateur silicon process. The Z1 had 6 transistors and was a great test chip to…
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Uptime Lab's CM4 Blade Adds NVMe, TPM 2.0 to Raspberry Pi
A few weeks ago, I received two early copies of Uptime.Lab's CM4 Blade. The Blade is built for the Raspberry Pi Compute Module 4, which has the same processor as the Pi 4 and Pi 400, but without any of the built-in IO ports. You plug the CM4 into the Blade, then the Blade breaks out the connections to add some…
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Where are the robotic bricklayers?
When researching construction, you invariably discover that any new or innovative idea has actually been tried over and over again, often stretching back decades.
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Apple iPhone charger teardown: quality in a tiny expensive package (2012)
This article is now available in Vietnamese Bộ sạc iPhone của Apple . Disassembling Apple's diminutive inch-cube iPhone charger reveals ...
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Ultra fast Thunderbolt NAS with Apple M1 and Linux
In this post I discuss how you can upgrade a NAS Server by adding Thunderbolt 3 for lightning fast connectivity at 20 or 40Gbps. This particular implementation is specific to an Apple Mac Mini M1 and
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Google Tensor SoC debuts on the new Pixel 6 this fall
Google Tensor is our first custom-built SoC specifically for Pixel phones, and it will power the Pixel 6 and Pixel 6 Pro later this fall.
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The journey to controlling external monitors on M1 Macs
When M1 Macs were launched, a new GPU with iOS-like architecture started driving the external monitors. This meant that the old method for controlling monitors using DDC wouldn't work anymore. Apps like Lunar and MonitorControl had to find other ways to change the brightness of the monitors.
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Reprogramming a Sennheiser Microphone
I'm somehow interested in audio production. But not it more my pet hobby, nothing that would generate decent income. This means I usually do...
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My Fanless OpenBSD Desktop
After the disappointment of my X1 Nano and learning that all future Intel "Evo"-branded laptops would lack S3 suspend, I started thinking about returning to my M1 MacBook full-time or building an OpenBSD desktop. I chose the latter, building my first desktop machine in many years.
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New algorithm flies drones faster than human racing pilots
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Starlink review, four months in
SpaceX's Starlink internet service uses satellites in low-earth orbit to provide high-speed Internet to underserved parts of the world, especially places without easy access to cable or fiber. SpaceX's Starlink beta opened up in my area, so I installed Dishy—that's the nickname for the large white satellite dish…
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GPU Architecture Types Explained
The behavior of the graphics pipeline is practically standard across platforms and APIs, yet GPU vendors come up with unique solutions to accelerate it, the two major architecture types being tile-based and immediate-mode rendering GPUs. In this article we explore how they work, present their strengths/weaknesses, and…
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Don’t Let Police Arm Autonomous or Remote-Controlled Robots and Drones
Whether controlled by an artificial intelligence or a remote human operator, armed police robots and drones pose an unacceptable threat to civilians. The ongoing revolution in the field of robotics requires us to act now to prevent a new era of police violence.