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Louwrentius
Affordable server with server-grade hardware part II If you want to build a home server, it may be advised to actually use server-grade components. I...
over a year ago
2
over a year ago
If you want to build a home server, it may be advised to actually use server-grade components. I documented the reasons for choosing server-grade hardware already in an earlier post on this topic. It is recommended to read the old post first. In this new post, I only show new...
detreville
This is "detreville" It's my name, and the name of my Substack too. That's one less thing for everyone to remember.
a year ago
Notes on software...
Make small changes and solve the problems you have Two frustrating things that can happen in an organization are 1) big changes and 2) changes that...
over a year ago
2
over a year ago
Two frustrating things that can happen in an organization are 1) big changes and 2) changes that aren’t clearly associated with a known problem. It’s even worse in that order. These situations tend to happen when a problem remain unaddressed for too long. These situations tend to...
Arduino Blog
Team Ikaro scores success with the Arduino Nano RP2040 Connect! Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in...
3 months ago
35
3 months ago
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in Rome, sharing a strong passion for electronics and turning heads in the world of robotics! Specializing in Soccer Lightweight games (where robot-soccer players compete to score goals...
Jonas Hietala
Game Design Analysis: World of Goo Introduction This is the second essay for the course Game Design and this thime I will be analysing...
over a year ago
2
over a year ago
Introduction This is the second essay for the course Game Design and this thime I will be analysing the game World of Goo a bit. The first level The game is very simple. You begin with a structure and a few Goo balls, the charming balls bobbing around there, which you can drag...
On Life and Lisp
Fun and Games with Exposure Notifications Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact...
over a year ago
5
over a year ago
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact tracing on mobile phones by exchanging codes with nearby phones over Bluetooth, implemented within the Android and iOS operating systems, now available here in Toronto. Wait –...
Lighthouse Blog
Updates January 12
11 months ago
./techtipsy
Disabling the crappy Broadcom Bluetooth adapter in your ThinkPad T430 running Linux You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like 1vyrain, installed a...
over a year ago
38
over a year ago
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like 1vyrain, installed a better adapter like the Intel Dual Band Wireless-AC 7260, and found that Bluetooth is not working as intended on your ThinkPad T430 running Linux? Here’s a guide on what you can...
Applied Cartography
PSA: mess around with Kolo I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with...
9 months ago
2
9 months ago
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with Buttondown — a process that I expected to take a couple hours on a lazy Sunday and in fact took ten minutes and three lines of code. If you have a Django app, I think you should drop...
Matt Mullenweg
WPAI Very excited to share that we’ve acquired WPAI and the team is joining Automattic. They have some...
a week ago
5
a week ago
Very excited to share that we’ve acquired WPAI and the team is joining Automattic. They have some very cool products including CodeWP, AgentWP, and WP.chat.
somenice
Gold and Ghosts In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest...
a month ago
32
a month ago
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest mountains, searching for a legend as old as the hills: the lost crate of gold. The tale of “Shining Creek Gold” was whispered in every saloon from Seattle to San Francisco, a cache...
Jonas Hietala
A Four-Eyed Update Wow it’s been a while! Almost a month and a half since my last update. There I complained about my...
over a year ago
3
over a year ago
Wow it’s been a while! Almost a month and a half since my last update. There I complained about my almost constant headaches which hampered me a lot actually. Luckily now I have joined the rank of cool. I took home three frames I think and tried them out and I settled some I...
Willem's Blog
Six months with MCADD It's six months since our son was born with MCADD, a good moment to reflect upon the experience of...
over a year ago
3
over a year ago
It's six months since our son was born with MCADD, a good moment to reflect upon the experience of being a parent with some thoughts and tips.
Gwern.net Newsletter
December newsletter December 2020 gwern.net newsletter with links on AI and technology; major new site feature:...
over a year ago
2
over a year ago
December 2020 gwern.net newsletter with links on AI and technology; major new site feature: fully-generalized recursive popups.
Notes on software...
Why (and how) to read books The last time I read for fun was in elementary school. Since college I knew I must read more, but I...
over a year ago
3
over a year ago
The last time I read for fun was in elementary school. Since college I knew I must read more, but I never forced myself to build the habit. Then three years ago I spent time around my brother and a coworker who were avid readers. This "peer pressure" helped me get started. Since...
Arduino Blog
An ultra-affordable DIY underwater ROV ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by...
7 months ago
70
7 months ago
ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by the possibilities. But traditional ROVs cost a lot of money and often require serious expertise to operate and maintain. Luckily there are affordable alternatives, such as this...
On Life and Lisp
AAA gaming on Asahi Linux Gaming on Linux on M1 is here! We’re thrilled to release our Asahi game playing toolkit, which...
2 months ago
36
2 months ago
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi game playing toolkit, which integrates our Vulkan 1.3 drivers with x86 emulation and Windows compatibility. Plus a bonus: conformant OpenCL 3.0. Asahi Linux now ships the only conformant OpenGL®, OpenCL™, and...
Vitalik Buterin's...
A Philosophy of Blockchain Validation
over a year ago
Simply Explained
Good Home Automation Should be Boring I'm a huge fan of Home Assistant to automate various things around the house. I often look at other...
over a year ago
2
over a year ago
I'm a huge fan of Home Assistant to automate various things around the house. I often look at other people's setup for inspiration, and one thing struck me. Many people have cluttered dashboards and use Home Assistant to track just about any metric they can.That's quite different...
Notes on software...
Obsession In your professional and personal life, I don't believe there is a stronger motivation than having...
4 months ago
3
4 months ago
In your professional and personal life, I don't believe there is a stronger motivation than having something in mind and the desire to do it. Yet the natural way to deal with a desire to do something is to justify why it's not possible. "I want to read more books but nobody reads...
Vitalik Buterin's...
A Quick Garbled Circuits Primer
over a year ago
Neil Madden
When a KEM is not enough In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation...
over a year ago
2
over a year ago
In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation mechanism is given the recipient’s public key and outputs a fresh AES key and an encapsulation of that key that the recipient can decapsulate to recover the AES key. In this post I...
Louwrentius
Debian Linux Preseeding - an installation framework Look Ma! No hands! just watching a system PXE-boot and install itself into a fully...
over a year ago
2
over a year ago
Look Ma! No hands! just watching a system PXE-boot and install itself into a fully operational system is fun. PXE boot and preseeding is not enough however to accomplish this. By itself, preseeding only installs a basic operating system. Next, you need to configure all sorts of...
Lighthouse Blog
Updates August 19
4 months ago
Simply Explained
I Built a CO2 Sensor and It Terrifies Me Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is...
over a year ago
3
over a year ago
Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is equally important for our health and even our cognitive performance.In this blog post we'll look at a DIY CO2 sensor: how it runs ESPHome, how it integrates with Home Assistant, how it...
./techtipsy
I looked at this site on the Wayback Machine Yesterday was election day in Estonia and the results are in, which is why I remembered that one...
a year ago
60
a year ago
Yesterday was election day in Estonia and the results are in, which is why I remembered that one time I looked at my website on the Wayback Machine. This domain used to point to a Wordpress site that hosted content for a candidate in the local elections, at least around...
Simply Explained
Tracking gas usage with ESPHome, Home Assistant, and TCRT5000 In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home...
over a year ago
3
over a year ago
In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home Assistant added an Energy Management feature that keeps track of electricity and gas usage. So naturally, I had to make my gas meter smart as well.
Christian Selig
Trials and Tribulations of Making an Interruptable Custom View Controller Transition on iOS I think it’s safe to say while the iOS custom view controller transition API is a very powerful one,...
over a year ago
20
over a year ago
I think it’s safe to say while the iOS custom view controller transition API is a very powerful one, with that power comes a great deal of complexity. It can be tricky, and I’m having one of those days where it’s getting the better of me and I just cannot get it to do what I want...
Applied Cartography
Klarna: nineteen years, twenty billion kroner I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay...
3 weeks ago
5
3 weeks ago
I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay (RIP), Klarna, et al — not for any particular sin I feel that they are committing, but because they in my mind are much less interesting companies with less volatile upside than the...
Arduino Blog
Arduino IDE 2.3.3: discover new support for shared spaces and more! We’re excited to announce that the Arduino IDE 2.3.3 is now live!  What’s in the new version This...
2 months ago
24
2 months ago
We’re excited to announce that the Arduino IDE 2.3.3 is now live!  What’s in the new version This new release is packed with improvements, including one feature we’re particularly proud of: support for shared spaces in Arduino Cloud. If you have a Cloud Business plan or School...
Odds and Ends of...
Here's how AI can REDUCE health misinformation How the government can build a bullshit detector
2 months ago
Electronics etc…
An In-Depth Look at the ICE-V Wireless FPGA Development Board Introduction The ICE-V Wireless FPGA Board Preloading the PSRAM with User Data The Overall Boot...
a year ago
63
a year ago
Introduction The ICE-V Wireless FPGA Board Preloading the PSRAM with User Data The Overall Boot Process UART Console Getting Started with the ICE-V Wireless Board for Real Reinstalling or Modifying the ESP32C3 Firmware The RISC-V Example FPGA Design Compiling the RISC-V Example...
Notes on software...
Be someone who does things I wrote last month that what you want to do is one of the most useful motivations in life. I want to...
3 months ago
2
3 months ago
I wrote last month that what you want to do is one of the most useful motivations in life. I want to follow that up by saying that the only thing more important than wanting to do something is to actually do something. The most valuable trait you can develop for yourself is to...
./techtipsy
This site will be offline on 2022-08-17 between 18:00-19:00 EEST There really isn’t much to say here, nor is there a rational reason behind this. I just see it as an...
over a year ago
56
over a year ago
There really isn’t much to say here, nor is there a rational reason behind this. I just see it as an opportunity to send a signal and test the capabilities of my UPS. I’ve prepared for this moment with my self-hosting setup, let’s see how well it holds up. Hopefully better than...
Matt Mullenweg
I Voted! It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a...
a month ago
4
a month ago
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a last-minute flight to Houston and this morning walked over to Congregation Emanu El and voted. It is our most sacred duty as a citizen. I encourage every American to vote.
Ken Shirriff's blog
The transparent chip inside a vintage Hewlett-Packard floppy drive While repairing an eight-inch HP floppy drive, we found that the problem was a broken interface...
a year ago
3
a year ago
While repairing an eight-inch HP floppy drive, we found that the problem was a broken interface chip. Since the chip was bad, I decapped it and took photos. This chip is very unusual: instead of a silicon substrate, the chip is formed on a base of sapphire, with silicon and metal...
Jonas Hietala
Starcraft 2 Keycaps When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure...
over a year ago
3
over a year ago
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure they cost almost 10x as much as a “regular” one and they didn’t even have these funky multimedia keys, what gives? Did I loose my insanity? It was supposed to give a great typing...
Electronics etc…
ThinMachine - a $25 Thin Client MacOS Time Machine Appliance The instructions below set up Time Machine using the Apple File Protocol (AFP). After publishing...
a year ago
78
a year ago
The instructions below set up Time Machine using the Apple File Protocol (AFP). After publishing this blog post, I’ve been told that this is now deprecated and that Samba should be used instead. I’ll update this blog post in the near future. Introduction The HP t520 Thin...
Computer Ads from...
ViaGrafix Computer Training Videos Learn...by Simply Watching TV
a month ago
Ken Shirriff's blog
Reverse engineering standard cell logic in the Intel 386 processor The 386 processor (1985) was Intel's most complex processor at the time, with 285,000...
10 months ago
2
10 months ago
The 386 processor (1985) was Intel's most complex processor at the time, with 285,000 transistors. Intel had scheduled 50 person-years to design the processor, but it was falling behind schedule. The design team decided to automate chunks of the layout, developing "automatic...
Notes on software...
Writing to be read There is a common struggle in the writing and maintenance of documentation, checklists, emails,...
over a year ago
2
over a year ago
There is a common struggle in the writing and maintenance of documentation, checklists, emails, guides, etc. Each provides immense value; a document may be the key to an important process. The goal is to remove barriers -- to encourage understanding and correct application of...
Vitalik Buterin's...
My 40-liter backpack travel guide
over a year ago
Christian Selig
More Efficient/Faster Average Color of Image Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of...
over a year ago
28
over a year ago
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of why you might want this! Finding the average color of an image is a nice trick to have in your toolbelt for spicing up views. For instance on iOS, it’s used by Apple to make their...
Vitalik Buterin's...
Notes on Blockchain Governance
over a year ago
Electronics etc…
Installing Linux GPIB Drivers for the Agilent 82357B Introduction Other Installation Instructions Agilent 82357B Initialization Process Installing the...
a year ago
55
a year ago
Introduction Other Installation Instructions Agilent 82357B Initialization Process Installing the Agilent 82357B GPIB Driver on an Ubuntu Linux Distribution References Introduction I’ve started to grow a collection of older test equipment from the eighties, the nineties, and the...
Home on Erik...
Luigi talk tomorrow At NYC Data Science meetup! Unfortunately the space is full but the talk will be livestreamed –...
over a year ago
2
over a year ago
At NYC Data Science meetup! Unfortunately the space is full but the talk will be livestreamed – check out the meetup web page for a link tomorrow.
./techtipsy
How to fix ZFS pool not importing at boot Issue description You are running a Linux-based machine with an install of ZFS on Linux. Everything...
over a year ago
23
over a year ago
Issue description You are running a Linux-based machine with an install of ZFS on Linux. Everything seems to work correctly, but after restarting your machine, the ZFS pool is not visible. You can still import your pool manually using zpool import poolname or zpool import -a. In...
Jonas Hietala
Focusing Attention: Programming These last two weeks have been a small attempt at clearing up my head a bit. I have far too many...
over a year ago
2
over a year ago
These last two weeks have been a small attempt at clearing up my head a bit. I have far too many things I’d like to do and even if it’s not possible to do them all at once it didn’t stop me from thinking of them. One minute it’s that and the other it’s something completely...
Arduino Blog
On-body LEDs help this guitar rock harder You don’t go to watch a band play live for the audio quality — most venues are atrocious in that...
6 months ago
38
6 months ago
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that regard. No, you go to enjoy the show as a whole and that includes the visuals. The more a band can do to make the performance look exciting, the more you’re going to enjoy it. […] The...
./techtipsy
Overcoming hardware limitations: the time-to-sleep script As some of you might own, I’m still rocking a ThinkPad T430, a laptop model originally released in...
over a year ago
38
over a year ago
As some of you might own, I’m still rocking a ThinkPad T430, a laptop model originally released in 2012. It’s not the fastest laptop out there, but it is plenty fast for a number of tasks, even most software development work. I also try to keep my machines up to date and properly...
Push to Prod
How We Built a Self-Healing System to Survive a Terrifying Concurrency Bug At Netflix Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's...
3 months ago
Willem's Blog
Working with special hardware from China This month I reversed engineered my way into developing software for a Chinese Android device with...
over a year ago
2
over a year ago
This month I reversed engineered my way into developing software for a Chinese Android device with an embedded printer!
Computer Ads from...
Oberon International' Omni-Reader Audio Engineers announce a revolution in taking words from page to your computer
5 days ago
Matt Blewitt
Thoughts on User Safety: 2 Following up from last time, let’s explore the internal and insider fronts when moving beyond...
over a year ago
2
over a year ago
Following up from last time, let’s explore the internal and insider fronts when moving beyond security towards safety for our users.
Louwrentius
How to escape file names in bash shell scripts After fighting with Bash for quite some time, I found out that the following code provides a nice...
over a year ago
3
over a year ago
After fighting with Bash for quite some time, I found out that the following code provides a nice basis for escaping special characters. Ofcource it is not complete, but the most important characters are filtered. If anybody has a better solution, please let me know. It works and...
Old Vintage...
Refurb weekend: Canon Cat It's the Memorial Day holiday weekend and it's time for a little deferred maintenance, especially on...
6 months ago
85
6 months ago
It's the Memorial Day holiday weekend and it's time for a little deferred maintenance, especially on those machines I intend to work on more in the near future. So we'll start with one that's widely considered to be a remarkable cul-de-sac in computing history: the Canon...
Jonas Hietala
Poking at Emacs I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty...
over a year ago
2
over a year ago
I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty confident and happy with it. For those who don’t know it’s basically a text editor, like notepad, but with a lot of keycommands which allows you to edit code (and text in general)...
computers are bad
2023-11-04 nuclear safety Nuclear weapons are complex in many ways. The basic problem of achieving criticality is difficult on...
a year ago
100
a year ago
Nuclear weapons are complex in many ways. The basic problem of achieving criticality is difficult on its own, but deploying nuclear weapons as operational military assets involves yet more challenges. Nuclear weapons must be safe and reliable, even with the rough handling and...
somenice
Untitled
4 months ago
Willem's Blog
Scalable application design without magic I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I...
over a year ago
2
over a year ago
I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I did this by leveraging the client's computing power having it handle most of the user interaction workload.
Simply Explained
ESP32: Tips to increase battery life Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes...
over a year ago
3
over a year ago
Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes great responsibility. In this post, I’ll outline how I got an ESP32 to run for over 15 weeks (and counting) on a single 1000mAh battery.
Notes on software...
Go database driver overhead on insert-heavy workloads The most popular SQLite and PostgreSQL database drivers in Go are (roughly) 20-76% slower than...
a year ago
2
a year ago
The most popular SQLite and PostgreSQL database drivers in Go are (roughly) 20-76% slower than alternative Go drivers on insert-heavy benchmarks of mine. So if you are bulk-inserting data with Go (and potentially also bulk-retrieving data with Go), you may want to consider the...
Home on Erik...
When machine learning matters I joined Spotify in 2008 to focus on machine learning and music recommendations. It's easy to...
over a year ago
2
over a year ago
I joined Spotify in 2008 to focus on machine learning and music recommendations. It's easy to forget, but Spotify's key differentiator back then was the low-latency playback. People would say that it felt like they had the music on their own hard drive.
Home on Erik...
Delivering Music Recommendations I've turned into a lazy bastard and I'm just posting presentations on this blog, but here's one from...
over a year ago
3
over a year ago
I've turned into a lazy bastard and I'm just posting presentations on this blog, but here's one from Rohan Singh at Spotify talking about the backend infrastructure of the Discover page.
Vitalik Buterin's...
The bulldozer vs vetocracy political axis
over a year ago
Applied Cartography
Pytest: test for print statements Inspired by Adam Johnson's test for pending migrations, and of course in conversation with my own...
5 months ago
2
5 months ago
Inspired by Adam Johnson's test for pending migrations, and of course in conversation with my own love of weird tests, I offer a similar concept: a test for finding stray print statements in your codebase, with a ratchet array for stuff to ignore. import glob PATH =...
./techtipsy
Control - how to make a game enjoyable for casual audiences I’ve decided to intentionally take more time to play video games this year, since it’s a relatively...
a year ago
104
a year ago
I’ve decided to intentionally take more time to play video games this year, since it’s a relatively healthy way to escape from the real world once in a while. A friend recommended one game in particular: Control: Ultimate Edition. During the Steam summer sale of 2023, I went...
Jonas Hietala
2012 Read Books I read a post, sadly lost the link, where the author had recorded all books she had read during the...
over a year ago
3
over a year ago
I read a post, sadly lost the link, where the author had recorded all books she had read during the year and I thought it’d be pretty fun to do. So here goes, in a mostly ordered list. The Art of Learning - Josh Waitzkin Världens Whiskey More of a reference book. Linear Algebra...
Louwrentius
Which file system for a large storage array under Linux? There are many file systems available under Linux, however only a few of them can be used for a...
over a year ago
3
over a year ago
There are many file systems available under Linux, however only a few of them can be used for a large storage array. I am assuming that you want to create a single file system. I don't care if you use LVM or other layers beneath, this is about which file system to use. I will...
Arduino Blog
Explore underwater with this Arduino-controlled DIY ROV Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the...
4 months ago
50
4 months ago
Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the ocean? But a remotely operated vehicle (ROV), which is the kind of robot you’d use for such an adventure, isn’t exactly the kind of thing you’ll find on the shelf at your local...
computers are bad
2023-07-15 underwater ears everywhere Programming note: the subscribe link was broken for a while because I am bad at computers (yet...
a year ago
46
a year ago
Programming note: the subscribe link was broken for a while because I am bad at computers (yet another case of "forgot to enable the systemd unit"). It's fixed now. The unsubscribe link was also broken and is now fixed but, you know, maybe that was a feature. Did wonders for...
Jonas Hietala
How I made a kick-ass cover for my self-published book If you want to publish a book, one of the most important things to consider is the cover—after all,...
over a year ago
2
over a year ago
If you want to publish a book, one of the most important things to consider is the cover—after all, we judge the book by the cover. And I did it the universally recommended way: I hired a designer. Simple, right? But real talk; it’s not exactly that simple and I did a bunch of...
OH8HUB’s Substack
Eliminating Radio Interference from Apple charger Apple's product design teams should do a better job eliminating unwanted radio frequency emissions...
a year ago
Arduino Blog
This belt grinder uses an Arduino Opta micro PLC A mainstay in most machine shops, the belt grinder assists in greatly increasing the speed at which...
2 months ago
18
2 months ago
A mainstay in most machine shops, the belt grinder assists in greatly increasing the speed at which parts can be ground down in a safer, more controlled manner compared to an angle grinder. As an effort to build a tool like this one for the first time, Julien Alexandre chose to...
Louwrentius
Secure caching DNS server on Linux with DJBDNS The most commonly used DNS server software is ISC BIND, the "Berkeley Internet Name Daemon"....
over a year ago
3
over a year ago
The most commonly used DNS server software is ISC BIND, the "Berkeley Internet Name Daemon". However, this software has a bad security track record and is in my opinion a pain to configure. Mr. D.J. Bernstein developed "djbdns", which comes with a guarantee: if anyone finds a...
./techtipsy
The simplicity of the modulo operator: how I scaled an inefficient solution on a legacy system Your service cannot process events fast enough during peak hours. There is no obvious quick and...
a year ago
73
a year ago
Your service cannot process events fast enough during peak hours. There is no obvious quick and dirty fix. Refactoring would take ages. People have been unhappy for a while now. What the hell do you do? Background I had the pleasure of working with a legacy backend system...
Jonas Hietala
Writing lessons learned after writing a book A good writer isn’t born; a good writer is created It may sound dumb, but one of my reasons for...
a year ago
3
a year ago
A good writer isn’t born; a good writer is created It may sound dumb, but one of my reasons for writing a book was to improve my writing ability. Maybe I could’ve practiced on the blog instead, but putting things on paper gave it some added weight I don’t think I would’ve gotten...
Good Enough
Issue 0: Collector's Item 1. Oh, hello. We didn’t see you there. How are you doing? You’ve somehow ended up with a collector’s...
over a year ago
3
over a year ago
1. Oh, hello. We didn’t see you there. How are you doing? You’ve somehow ended up with a collector’s item in your hands: the very first Good Enough Newsletter. This is the beginning of what we (Barry Hess & Shawn Liu) hope to be a years-long series of communiqués with our rabid...
On Life and Lisp
Conformant OpenGL 4.6 on the M1 For years, the M1 has only supported OpenGL 4.1. That changes today – with our release of full...
10 months ago
25
10 months ago
For years, the M1 has only supported OpenGL 4.1. That changes today – with our release of full OpenGL® 4.6 and OpenGL® ES 3.2! Install Fedora for the latest M1/M2-series drivers. Already installed? Just dnf –refresh upgrade. Unlike the vendor’s non-conformant 4.1 drivers, our...
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 3: pressure transducers MathJax = { tex: { inlineMath: [['$', '$'], ['\\(', '\\)']] }, svg: { fontCache:...
11 months ago
2
11 months ago
MathJax = { tex: { inlineMath: [['$', '$'], ['\\(', '\\)']] }, svg: { fontCache: 'global' }, chtml: { displayAlign: 'left' } }; MathJax.Hub.Config({ "HTML-CSS": { scale: 175} }); .MathJax {font-size: 1em !important} The Bendix Central Air...
Louwrentius
HP Proliant Microserver Gen10 as router or NAS Introduction In the summer of 2017, HP released the Proliant Microserver Gen10. This machine...
over a year ago
2
over a year ago
Introduction In the summer of 2017, HP released the Proliant Microserver Gen10. This machine replaces the older Gen8 model. For hobbyists, the Microserver always has been an interesting device for a custom home NAS build or as a router. Let's find out if this is still the case....
Arduino Blog
How to use vintage LED bubble displays with your Arduino If you want to add a display to your Arduino project, the easiest solution will likely be an LCD or...
a month ago
24
a month ago
If you want to add a display to your Arduino project, the easiest solution will likely be an LCD or OLED screen. But though those are affordable and work really well, they may not provide the vibe you’re looking for. If you want a more vintage look, Vaclav Krejci has a great...
Arduino Blog
A DIY bottle-labeling machine perfect for homebrewers While it is certainly possible (and common) to put homebrewed beer into kegs, that requires...
6 months ago
45
6 months ago
While it is certainly possible (and common) to put homebrewed beer into kegs, that requires regulated gas and large refrigeration space. A keg is also more difficult to transport and overkill if you just want to bring a few beers to a friend’s backyard BBQ. For those reasons,...
Jonas Hietala
An invisible Remake What does a guy like me do when not working on a new game? Except living my life, being a coach for...
over a year ago
3
over a year ago
What does a guy like me do when not working on a new game? Except living my life, being a coach for my little brother’s hockey team and eating strawberries? The last week or so I’ve been working hard with my webpage, yes this page. If you’ve visited my site before today you’ll...
Louwrentius
Linux RAID 6 performance using software RAID So after toying around with RAID 0 just for fun, time to get serious. I created a RAID 6 of 10 x 1...
over a year ago
3
over a year ago
So after toying around with RAID 0 just for fun, time to get serious. I created a RAID 6 of 10 x 1 TB disks. This gives me raw device read speeds of 850 MB/s and write speeds of 300 MB/s. I think this is exactly what should be expected, but boy it is damn fast. Especially the...
Willem's Blog
The Ultimate Freedom Bike With the Brompton foldable bike you find yourself a very versatile companion to go whenever and...
over a year ago
2
over a year ago
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and wherever you please!
Engineers Need Art
Jigsaw Puzzle Those of us who fiddled while Apple Computer burned. Well, actually some of us put together a big...
over a year ago
59
over a year ago
Those of us who fiddled while Apple Computer burned. Well, actually some of us put together a big jigsaw puzzle.
Notes on software...
Windows It has been six years since I last used Windows for any remotely serious software development. I've...
over a year ago
2
over a year ago
It has been six years since I last used Windows for any remotely serious software development. I've used Ubuntu, Arch, or FreeBSD since. But eventually I spent so much time working around common workplace tasks that I decided to put Windows 10 Pro on my work laptop. Windows...
Vitalik Buterin's...
The Most Important Scarce Resource is Legitimacy
over a year ago
Vitalik Buterin's...
On Path Independence
over a year ago
computers are bad
2023-04-27 los alamos - compound to county pt I This weekend, I found myself staying in Los Alamos for a volunteer role in which I judge children on...
a year ago
57
a year ago
This weekend, I found myself staying in Los Alamos for a volunteer role in which I judge children on the quality of their software. Clearly this is not the kind of opportunity I would turn down, but I also always take an excuse to drive back up the hill. I only lived in Los...
Christian Selig
Curing Mac mini M4 fomo with 3D printing Spoiler: 3D printed! The colored ports really sell the effect If you’re anything like me, you’ve...
a month ago
19
a month ago
Spoiler: 3D printed! The colored ports really sell the effect If you’re anything like me, you’ve found the new, tinier Mac mini to be absolutely adorable. But you might also be like me that you either already have an awesome M1 Mac mini that you have no real reason to replace,...
./techtipsy
Steam local network game transfers are a game-changer Steam recently launched a new feature: local network game transfers. The idea is simple: if you have...
a year ago
61
a year ago
Steam recently launched a new feature: local network game transfers. The idea is simple: if you have a game downloaded on another PC and you’re both on the same local network, then Steam can download game data from that PC, avoiding the need to download the game over public...
Jonas Hietala
Why Cryptocurrencies? is now available in print Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve...
over a year ago
2
over a year ago
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve undertaken. My book ‘Why Cryptocurrencies?’ is released in print today! It’s my attempt to explain what cryptocurrencies are and what problems they solve, in a simple and...
Louwrentius
Creating configuration backups of HP procurve switches I've created a tool called procurve-watch. It creates a backup of the running switch configuration...
over a year ago
3
over a year ago
I've created a tool called procurve-watch. It creates a backup of the running switch configuration through secure shell (using scp). It also diffs backed up configurations against older versions, in order to keep track of changes. If you run the script from cron every hour or...
Louwrentius
AI is critically important but not for you Before Chat-GPT caused a sensation, big tech companies like Facebook and Apple were betting their...
7 months ago
2
7 months ago
Before Chat-GPT caused a sensation, big tech companies like Facebook and Apple were betting their future growth on virtual reality. But I'm convinced that virtual reality will never be a mainstream thing. If you ever used VR you know why: A heavy thing on your head that messes up...
Jonas Hietala
Picking up rust by writing a QR code generator I wanted to pick up rust again after having used it many years ago. After around 5 years or so I...
over a year ago
2
over a year ago
I wanted to pick up rust again after having used it many years ago. After around 5 years or so I didn’t really know where to start? Approaches to picking up a language When learning, or as in this case re-learning, a programming language there are different approaches. For...
Engineers Need Art
Building Quarter-Cab - Phase I Lets build a simple virtual pinball controller to bring more immersion to your game.
7 months ago
Posts on Made of...
Write testable code by writing generic code Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains...
over a year ago
2
over a year ago
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains several software engineers nearly as obsessed with software testing as I am): uhh, so I’m writing some code to handle an econnreset… how do I test this? This is a good question!...
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
5 months ago
Willem's Blog
Inspiration from a child Explore the world together with your kids and reap the rewards of adventure and fun!
over a year ago
Jonas Hietala
My first theme: Addictive Gaming In true experimental spirit I’ll now announce the theme for my first game: Addictive Gaming. I won’t...
over a year ago
2
over a year ago
In true experimental spirit I’ll now announce the theme for my first game: Addictive Gaming. I won’t be following the lead from the Experimental Gameplay Project’s site but I will follow their three laws (7 days, alone, themes). Puh… my first game! Wish me luck =)
Computer Ads from...
UNIX Review Magazine Interviews Larry Tesler They discuss Tesler's involvement with Xerox, Apple and office automation with Unix.
3 months ago
Notes on software...
General book recommendations This is an external post of mine. Click here if you are not redirected.
a year ago
watchTowr Labs -...
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623) We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a week ago
6
a week ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely. Cleo have a...
Jonas Hietala
Beginning Programming I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree...
over a year ago
2
over a year ago
I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree more with. Basically he has these points: Too long Too many examples like “Hello World!” No answers to exercises. Nr 1 is a pretty curious one. Even though I think a book is good,...
Good Enough
That time Marvel secretly endorsed my podcast with “the greatest comic book cover of all time” This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a...
a year ago
2
a year ago
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a record of this somewhere on the internet!” and I don’t have my own blog. Years ago my friend and I ran a radio show called Gorilla Madness, which we also spun out into a podcast after...
Old Vintage...
Teaching Apple Cyberdog 1.0 new tricks (featuring OpenDoc) this cyberdog (image credit). that cyberdog, though this is one of my favourite weirdo pinball...
a year ago
64
a year ago
this cyberdog (image credit). that cyberdog, though this is one of my favourite weirdo pinball machines. that cyberdog. our PowerBook Duo 2300 rehabilitated, guess what we're gonna look at? Internet document? Thus was the nucleus of Cyberdog (named for the famous New...
Applied Cartography
Buttondown Analytics 3.0 Working on a new analytics engine — a scant eleven months after the previous 'new analytics...
10 months ago
2
10 months ago
Working on a new analytics engine — a scant eleven months after the previous 'new analytics engine'. Calling this 3.0 is a bit of a misnomer: most of the code, design, and plumbing from the 2023 redesign is sticking around, just in a more modular format. The goal here is to...
Ken Shirriff's blog
Wealth distribution in the United States Forbes recently published the Forbes 400 List for 2024, listing the 400 richest people in the United...
2 months ago
4
2 months ago
Forbes recently published the Forbes 400 List for 2024, listing the 400 richest people in the United States. This inspired me to make a histogram to show the distribution of wealth in the United States. It turns out that if you put Elon Musk on the graph, almost the entire US...
Good Enough
Thoughts On Thoughts It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our...
a year ago
2
a year ago
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our thoughts and what we believe about them. Or perhaps we can think of this as an intervention. This post is the circle of friends gathered to help us stop hitting ourselves in the...
Arduino Blog
Kick off the Monaco Grand Prix weekend with these Formula 1-inspired Arduino projects The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the...
7 months ago
89
7 months ago
The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the season. While most fans can’t participate directly — except as spectators — they can celebrate their passion through DIY projects. That’s why we’ve scoured the community to find the...
Gwern.net Newsletter
June gwern.net newsletter June 2020 gwern.net newsletter with 3 new pages/essays, and links on CRISPR, population screening,...
over a year ago
2
over a year ago
June 2020 gwern.net newsletter with 3 new pages/essays, and links on CRISPR, population screening, AI scaling, politics, and technological unemployment.
Abort Retry Fail
The History of GM-NAA I/O and SHARE The Birth of Computer Operating Systems
a year ago
Home on Erik...
Annoy Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm...
over a year ago
3
over a year ago
Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm not trying to compete with existing packages, but Annoy has a couple of features that makes it pretty useful.
Arduino Blog
This 3D-printed robotic arm can be built with just a few inexpensive components Robotics is already an intimidating field, thanks to the complexity involved. And the cost of parts,...
2 months ago
29
2 months ago
Robotics is already an intimidating field, thanks to the complexity involved. And the cost of parts, such as actuators, only increases that feeling of inaccessibility. But as FABRI Creator shows in their most recent video, you can build a useful robotic arm with just a handful of...
Birchtree
All the games I played in 2024, reviewed I love movies, but I really love games as well, so I figured I may as well follow up my 2024 movies...
5 days ago
18
5 days ago
I love movies, but I really love games as well, so I figured I may as well follow up my 2024 movies of the year post with something similar for games. I’m not going to rank these, but I’ll give a few words on each one
Home on Erik...
Building a data team at a mid-stage startup: a short story I guess I should really call this a parable. The backdrop is: you have been brought in to grow a...
over a year ago
2
over a year ago
I guess I should really call this a parable. The backdrop is: you have been brought in to grow a tiny data team (~4 people) at a mid-stage startup (~$10M annual revenue), although this story could take place at many different types of companies.
Willem's Blog
Using the reMarkable paper tablet The paper-like display makes you forget about reMarkable's digital innards, working with this tablet...
over a year ago
2
over a year ago
The paper-like display makes you forget about reMarkable's digital innards, working with this tablet is therefore quite remarkable!
Posts on Made of...
What's with ML software and pickles? I have spent many years as an software engineer who was a total outsider to machine-learning, but...
a year ago
3
a year ago
I have spent many years as an software engineer who was a total outsider to machine-learning, but with some curiosity and occasional peripheral interactions with it. During this time, a recurring theme for me was horror (and, to be honest, disdain) every time I encountered the...
Louwrentius
Determining smartphone market share using wireless sniffing I started a project to see if I could track smartphone users by sniffing for wifi-clients. Most...
over a year ago
2
over a year ago
I started a project to see if I could track smartphone users by sniffing for wifi-clients. Most smartphones support wifi and most people don't bother disabling wifi when they go outdoors1. If wifi is left on, it is possible to detect these smartphones and track their movement. To...
Vitalik Buterin's...
In-person meatspace protocol to prove unconditional possession of a private key
over a year ago
Ken Shirriff's blog
Inside the tiny chip that powers Montreal subway tickets To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it...
6 months ago
2
6 months ago
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens. The ticket works through a system called NFC, but what's happening internally? How does the ticket work without a battery? How does it communicate with the turnstile? And how can it...
Abort Retry Fail
The History of Windows 95 The Dawn of Microsoft's Golden Age
a year ago
Notes on software...
Standard ML in 2020 Incredibly, Standard ML implementations are still actively developed. MLton, Poly/ML, MLKit, SML#...
over a year ago
2
over a year ago
Incredibly, Standard ML implementations are still actively developed. MLton, Poly/ML, MLKit, SML# and SML/NJ are the most prominent. Discussion on the future direction of Standard ML remains healthy as well. And somehow OCaml's lesser known cousin still beats out OCaml...
Arduino Blog
Create your own affordable Arduino-powered smart glasses When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the...
7 months ago
89
7 months ago
When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the world isn’t ready yet.” Now that more than a decade has passed, the world may finally be ready — especially with the omission of controversial features like video recording. If...
Home on Erik...
hdfs2cass Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra...
over a year ago
2
over a year ago
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra bulkloading. The nice thing is that it queries Cassandra for its topology and uses that to partition the data so that each reducer can upload data directly to a Cassandra node.
Home on Erik...
Iterate or die Here's a conclusion I've made building consumer products for many years: the speed at which a...
over a year ago
2
over a year ago
Here's a conclusion I've made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed. I don't even mean throughput here. I just mean the cycle time.
Arduino Blog
“Catch me if you can!” — How Alvik learns to dodge trouble with AI, featuring Roni Bandini Have you ever discovered a cool piece of tech buried in your drawer and thought, “This could make...
3 months ago
28
3 months ago
Have you ever discovered a cool piece of tech buried in your drawer and thought, “This could make for an awesome project”? That’s exactly what happened to Roni Bandini, maker, writer, electronics artist – and Arduino Alvik Star!  Bandini began coding at 10 years old, and has...
Jonas Hietala
Computer upgrade After 5 years or so I’ve made a large upgrade to my desktop, and this post contains details and some...
a year ago
2
a year ago
After 5 years or so I’ve made a large upgrade to my desktop, and this post contains details and some pictures about the process. It was time I didn’t really want to do an upgrade right now, but I felt I had to do it. Sometimes the lag had gotten very noticeable, for example when...
Posts on Made of...
Indices point between elements If you’re familiar with nearly any mainstream programming language, and I asked you to draw a...
over a year ago
2
over a year ago
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this: In this post, I want to persuade you to replace that image, or,...
Computer Ads from...
Page 6 Magazine Interviews the Godfather of Adventure Games, Scott Adams Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
4 months ago
Arduino Blog
Introducing Arduino cores with ZephyrOS (beta): take your embedded development to the next level Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to...
2 weeks ago
5
2 weeks ago
Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to release the first beta by the end of 2024. Today, we are excited to announce the first release of Arduino cores with ZephyrOS in beta! ZephyrOS is an open-source, real-time operating...
Posts on Made of...
Measuring Capacity Through Utilization (This post is cross-posted from Honeycomb’s instrumentation series). One of my favorite concepts...
over a year ago
2
over a year ago
(This post is cross-posted from Honeycomb’s instrumentation series). One of my favorite concepts when thinking about instrumenting a system to understand its overall performance and capacity is what I call “time utilization”. By this I mean: If you look at the behavior of a...
Arduino Blog
This unique wall sconce welcomes you home with warm light Have you ever walked through your front door after a long day of work and realized that your home...
a week ago
15
a week ago
Have you ever walked through your front door after a long day of work and realized that your home just isn’t as inviting as it seems like it should be? While it may not work miracles, some nice and welcoming lighting can make a big difference. That’s why Lauren Palazzi made this...
Lighthouse Blog
How to rate content and find it again
6 months ago
Arduino Blog
Adjusting office chair height with simple voice commands A month ago, ElectronicLab modified his office chair with an electric car jack, giving it motorized...
4 months ago
27
4 months ago
A month ago, ElectronicLab modified his office chair with an electric car jack, giving it motorized height adjustment. That worked well, but required that he push buttons to raise or lower the seat. Pushing those buttons is a hassle when one’s hands are full, so ElectronicLab...
Home on Erik...
Presentation about Luigi I like the editing!
over a year ago
Jonas Hietala
The End of the Tunnel Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from...
over a year ago
3
over a year ago
Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from the last time. One course about data structure and algorithms (super fun to be honest) has wrapped up. We thought we were ahead with the assignments but in the end it got very...
Posts on Made of...
Property-Based Testing Is Fuzzing “Property-based testing” refers to the idea of writing statements that should be true of your code...
over a year ago
2
over a year ago
“Property-based testing” refers to the idea of writing statements that should be true of your code (“properties”), and then using automated tooling to generate test inputs (typically, randomly-generated inputs of an appropriate type), and observe whether the properties hold for...
Jonas Hietala
5 Kup After a season with very bad attendence, I blame school and lack of motivation, I still went to...
over a year ago
2
over a year ago
After a season with very bad attendence, I blame school and lack of motivation, I still went to grading. I slept well but I was super stressed all weekend so I had to constantly run to the bathroom and I couldn’t eat lunch or breakfast properly, and I don’t usually get...
Good Enough
Adding Social Preview Images To Our 11ty Blog Twitter X recently removed headlines and descriptions from link previews, in the name of...
a year ago
2
a year ago
Twitter X recently removed headlines and descriptions from link previews, in the name of “esthetics.” Inspired by Steph Ango, while we try not to run our business on the whims of a social media platform, this change did push us into making a change we’ve been meaning to for...
Louwrentius
Don't be afraid of RAID Introduction I sense this sentiment on the internet that RAID is dangerous, that the likelihood of...
over a year ago
2
over a year ago
Introduction I sense this sentiment on the internet that RAID is dangerous, that the likelihood of your RAID array failing during a rebuild is almost a certainty, because hard drives have become so large. I think nothing is further from the truth and I would like to dispel this...
Notes on software...
Active and influential NYC infrastructure people These are some of the most influential (mostly due to experience or expertise) and active folks (I...
a month ago
4
a month ago
These are some of the most influential (mostly due to experience or expertise) and active folks (I actually see them attend events) in the NYC infrastructure scene (that I have a personal connection to). If you're running a dinner or are just looking to meet interesting people in...
Style over Substance
Review of the 2-dial TTArtisan Light Meter My latest purchase for my analog cameras is the TTArtisan light meter, a hotshoe-mounted meter...
over a year ago
66
over a year ago
My latest purchase for my analog cameras is the TTArtisan light meter, a hotshoe-mounted meter accessory. The market for these shoe-mounted light meters for vintage cameras has become weirdly competitive. They fit on top of a mechanical camera and provide you with the right...
lcamtuf’s thing
Analog filters, part 2: let it ring A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key...
2 months ago
Computer Ads from...
OS-9 Bonus Content A detailed look at OS-9 for Tandy Color Computers
3 months ago
Abort Retry Fail
Housekeeping for 20240701 Another correction
5 months ago
Old Vintage...
The Living Computers Museum finally isn't First off, apologies for a quiet month as I've been dealing with family matters which hopefully are...
5 months ago
77
5 months ago
First off, apologies for a quiet month as I've been dealing with family matters which hopefully are now on a better footing (more articles are in the hopper). Unfortunately, the same apparently can't be said for the once-great Living Computers Museum + Labs in Seattle,...
computers are bad
2024-05-06 matrix For those of you who are members of the Matrix project, I wanted to let you know that I am running...
7 months ago
121
7 months ago
For those of you who are members of the Matrix project, I wanted to let you know that I am running for the Governing Board, and a bit about why. For those of you who are not, I hope you will forgive the intrusion. Maybe you'll find my opinions on the topic interesting anyway. I...
Abort Retry Fail
The History of Windows NT 4 Taking the Server Market
a year ago
Arduino Blog
Adding real-time local voice controls to a SMARS Quad Mod robot with an Arduino RP2040 Connect Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools...
4 months ago
43
4 months ago
Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools for learning more about how electronics, mechanics, and software can combine to perform useful tasks in the physical world. And in his latest project, Edge Impulse’s senior...
Jonas Hietala
Beebop The Island Hopper It’s here! The stuff of dreams, an entry for the epic Ludum Dare 17 has been made! For those who...
over a year ago
2
over a year ago
It’s here! The stuff of dreams, an entry for the epic Ludum Dare 17 has been made! For those who don’t know it’s a 48 hour game making competition which actually is pretty silly. Even more silly is my two hours of commitment yesterday but late this night at about 03:05 I am now,...
Louwrentius
Is there an easy and secure way to transfer files? Many organisations just assume that the local physical network is trusted. That their network...
over a year ago
3
over a year ago
Many organisations just assume that the local physical network is trusted. That their network equipment is physically secure and that it is impossible for an attacker to get on the wire and start eavesdropping on network traffic. Many organisations do not seem too concerned about...
Louwrentius
Why security is all about defense in depth Many people asume that if you regularly update your computer, you are safe from hackers. But nothing...
over a year ago
3
over a year ago
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing could be further from the truth. Keeping your systems up-to-date only protects you against exploits for publicly known vulnerabilities. Your systems are still not protected...
Vitalik Buterin's...
Layer 2s as cultural extensions of Ethereum
6 months ago
Applied Cartography
Weird test: internal link checking I wrote last month about using weird tests. Here's another example: checking for broken internal...
8 months ago
1
8 months ago
I wrote last month about using weird tests. Here's another example: checking for broken internal links in our upcoming docsite redesign! const extractInternalLinks = (content: string): string[] => { // Check for internal links only, in the form of [text](/path). const...
watchTowr Labs -...
We Spent $20 To Achieve RCE And Accidentally Became The Admins Of .MOBI Welcome back to another watchTowr Labs blog. Brace yourselves, this is one of our most astounding...
3 months ago
2
3 months ago
Welcome back to another watchTowr Labs blog. Brace yourselves, this is one of our most astounding discoveries. Summary What started out as a bit of fun between colleagues while avoiding the Vegas heat and $20 bottles of water in our Black Hat hotel rooms - has now seemingly...
Home on Erik...
Interviewing is a noisy prediction problem I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence...
over a year ago
2
over a year ago
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence in my ability to assess people. Let me just throw a couple of algorithm questions at a candidate and then I'll tell you if they are good or not!
Posts on Made of...
Wordpress tricks: Disabling editing shortcuts One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t...
over a year ago
2
over a year ago
One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t edit text in anything that doesn’t have decent emacs keybindings. Fortunately, on Linux, at least, GTK provides basic emacs keybindings if you add gtk-key-theme-name = "Emacs" to...
Arduino Blog
Shop vac becomes a Roomba on steroids A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and...
7 months ago
61
7 months ago
A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and sweep your own floors, you have a little maid robot to do the job for you. But these devices have very little power and capacity, which makes them useless for anything other than...
Odds and Ends of...
Odds and Ends #42: An Elizabeth Line extension, some mad planning law nonsense, and the world's most... Your regular round-up of interesting links
a month ago
Jonas Hietala
2012 in Review Like the last two years I’m summarizing the year. At the end of the year like this it always feel...
over a year ago
2
over a year ago
Like the last two years I’m summarizing the year. At the end of the year like this it always feel like I didn’t accomplish much, but after the yearly summary it always feels better. 2012 Geek Achievements Designed a processor which fulfills the Core Wars 88 standard. Includes a...
Arduino Blog
Web Serial Camera stream with Arduino Hey there, fellow tech enthusiasts! Ever wondered how you could effortlessly stream camera footage...
4 months ago
36
4 months ago
Hey there, fellow tech enthusiasts! Ever wondered how you could effortlessly stream camera footage from your Arduino boards directly to your web browser? Wonder no more! Arduino’s Web Serial Camera demo shows how to bring your camera projects to life. Stream images from your...
Christian Selig
Juno 1.1 If you’re new, Juno is a visionOS app for YouTube! Juno’s initial launch blew my socks off. It was...
10 months ago
39
10 months ago
If you’re new, Juno is a visionOS app for YouTube! Juno’s initial launch blew my socks off. It was such a cool feeling to release an app on day one of the Apple Vision Pro’s launch, and having people be so excited about it and have such great feedback made it that much better....
Arduino Blog
Introducing Opta Expansions: scalable simplicity! Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and...
7 months ago
46
7 months ago
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and allowed us to reach PLC engineers with a new solution specifically designed for their needs.  To further expand Opta’s capabilities, today the Arduino ecosystem welcomes various...
Vitalik Buterin's...
[Mirror] Bir Proof of Stake Tasarım Felsefesi
over a year ago
Vitalik Buterin's...
Gitcoin Grants Round 5 Retrospective
over a year ago
Computer Ads from...
EPYX's Pitstop Where Winning is the Pits.
6 months ago
Willem's Blog
Wearing two watches Why you should wear two watches, don't choose between a mechanical watch and a smartwatch!
over a year ago
latest projects -...
Badge [Hardware] A RISC-V LED matrix
a year ago
Louwrentius
Visual representation of hard drives and their temperature If you build a NAS with many drives, it may be of interest to you which drives get hot and where...
over a year ago
3
over a year ago
If you build a NAS with many drives, it may be of interest to you which drives get hot and where they are located in the chassis. My Norco 4020 case has twenty drives in RAID 6, plus two operating system drives in RAID 1. I wrote a script that shows me the temperature of each...
Posts on Made of...
6.170, CVS, and SVN I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but...
over a year ago
2
over a year ago
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but one of the most egregious, in my opinion, is that they force you to use CVS for your version control. Problem sets are distributed by the TAs importing them into your repository, and...
Louwrentius
'Linux: using disk labels to counter storage device name changes' My router decided to change the device name for some USB storage devices. So /dev/sdc was swapped...
over a year ago
2
over a year ago
My router decided to change the device name for some USB storage devices. So /dev/sdc was swapped for /dev/sdd and vice versa. The result was some file system corruption on /dev/sdc, because it was used on a remote system through iSCSI, using a different file system from...
Arduino Blog
This automatic laser turret keeps the cats entertained for hours Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their...
2 months ago
26
2 months ago
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their cats indoors to avoid decimating the local wildlife population and that means Mr. Whiskers and Ms. Socks don’t get much opportunity to express their hunting urges. That’s why...
Gwern.net Newsletter
March 2021 Gwern.net Newsletter 2 major new site features: 'popins' and recursive Wikipedia popups
over a year ago
Arduino Blog
A beautiful custom calculator built with IV-12 VFD tubes Nixie tubes have been the go-to option for makers looking for retro display aesthetics for many...
6 months ago
60
6 months ago
Nixie tubes have been the go-to option for makers looking for retro display aesthetics for many years, because their distinct orange glow carries a lot of vintage appeal. But VFD (vacuum fluorescent display) tubes have been gaining in popularity recently and have different —...
Arduino Blog
A miniature Vegas Sphere is the perfect nightlight Sphere in Las Vegas is inarguably one of the most notable architectural achievements of the...
4 months ago
35
4 months ago
Sphere in Las Vegas is inarguably one of the most notable architectural achievements of the 21st century so far. Gaudy? Maybe. Controversial? Definitely. Interesting? Absolutely — no one can debate that with a straight face. When 15-year-old Ben Kennedy’s bedroom nightlight...
Good Enough
TIL: JavaScript Turbo Stream Requests I am working on search for Album Whale and I was very confused when my JavaScript fetch requests...
a year ago
3
a year ago
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests were not resulting in turbo_stream rendering getting displayed on my page. I checked my logs to see if the render was happening. I looked for missing <%= tags. Debugged and...
Notes on software...
Controlled HTML select element in React has weird default UX This is an external post of mine. Click here if you are not redirected.
over a year ago
Jonas Hietala
Going down Ah my first game was so painless so I thought I could do any game I could imagine! Shooters, and...
over a year ago
2
over a year ago
Ah my first game was so painless so I thought I could do any game I could imagine! Shooters, and mario bros kinda stuff. Well now I’m not so upbeat anymore, I’ve worked on this game for 7 days now and it’s not playable at all. With seven days I don’t mean a week, I’ve had a big...
Jonas Hietala
Battling burnout Mamma Mia! Here we go again… Once again, I’m finding myself trying to recover from burnout, and...
a year ago
2
a year ago
Mamma Mia! Here we go again… Once again, I’m finding myself trying to recover from burnout, and after about a year I’m finally feeling more like myself. Even though I’ve been here before, it’s a difficult thing to recognize and avoid, so I’m writing this to maybe help you or my...
Push to Prod
One Key Aspect of Optimizing Computational Throughput When optimizing throughput, think carefully about how many CPUs you have when adding threads or...
3 months ago
Home on Erik...
Momentum strategies Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday...
over a year ago
2
over a year ago
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday night. Basically I wanted to know whether momentum strategies work well for international stock indexes. I spent a bit of time putting together a strategy that buys the stock index if...
Neil Madden
A few programming language features I’d like to see I enjoyed Hillel Wayne’s recent newsletter about microfeatures they’d like to see in programming...
a year ago
2
a year ago
I enjoyed Hillel Wayne’s recent newsletter about microfeatures they’d like to see in programming languages. A “microfeature” is essentially a small convenience that makes programming in that language a bit easier without fundamentally changing it. I love this idea. I’m partial to...
Louwrentius
ZFS: Performance and capacity impact of ashift=9 on 4K sector drives Update 2014-8-23: I was testing with ashift for my new NAS. The ashift=9 write performance...
over a year ago
2
over a year ago
Update 2014-8-23: I was testing with ashift for my new NAS. The ashift=9 write performance deteriorated from 1.1 GB/s to 830 MB/s with just 16 TB of data on the pool. Also I noticed that resilvering was very slow. This is why I decided to abandon my 24 drive RAIDZ3...
Opsbros
The past lives again! I found a GameBoy Camera for my GBC and thought it'd be a good idea to extract the photos from eons...
over a year ago
3
over a year ago
I found a GameBoy Camera for my GBC and thought it'd be a good idea to extract the photos from eons ago and bring them to the era of the internet.
Posts on Made of...
Stripe's monorepo developer environment I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed...
7 months ago
2
7 months ago
I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed to many generations of Stripe’s developer environment – the tools that engineers used daily to write and test code. I think Stripe did a pretty good job designing and building that...
./techtipsy
I encourage you to write a blog It’s been over 4 years since my first post on this blog. During those 4 years I’ve written over 90...
3 months ago
37
3 months ago
It’s been over 4 years since my first post on this blog. During those 4 years I’ve written over 90 posts, received over 1 million clicks, a dozen legitimate reader e-mails and thousands of spam e-mails. And I love it! I’ve found that writing can be very fulfilling and I encourage...
Louwrentius
'Linux: monitor a directory for files' Inotify is a mechanism in the Linux kernel that reports when a file system event occurs. The...
over a year ago
2
over a year ago
Inotify is a mechanism in the Linux kernel that reports when a file system event occurs. The inotifywait comand line utility can be used in shell scripts to monitor directories for new files. It can also be used to monitor files for changes. Inotifywait must be installed and is...
Louwrentius
Belkin Gigabit USB 2.0 adapter works perfectly with Linux My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my...
over a year ago
2
over a year ago
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my internet router. As you may be aware, the mini has only one network interface, so I added a second interface using a USB to ethernet adapter. This adapter was limited to 100 Mbit, so...
Notes on software...
Finding memory leaks in Postgres C code This is an external post of mine. Click here if you are not redirected.
9 months ago
Computer Ads from...
Apple IIe and IIc Design Manager Peter Quinn Interviewed by BYTE's Gregg Williams A behind-the-scenes look at the development of the Apple IIe and IIc.
9 months ago
Odds and Ends of...
Nobody knows what the National Data Library is (not even the government) A policy wrapped in a mystery inside an enigma
a month ago
Arduino Blog
The Club Master is a Nano RP2040 Connect-powered device that improves your golf swing When playing golf, few things are as important as using the correct form when swinging, since even...
6 months ago
45
6 months ago
When playing golf, few things are as important as using the correct form when swinging, since even small deviations can be the difference between a hole-in-one and additional strokes. To improve his game, Concept Bytes has designed a small clip-on device called the “Club Master.”...
Abort Retry Fail
The History of Windows 1.0 Vaporware
a year ago
computers are bad
2024-11-23 cablesoft As an American, I often feel an intense jealousy of Ceefax, one of several commercially successful...
4 weeks ago
29
4 weeks ago
As an American, I often feel an intense jealousy of Ceefax, one of several commercially successful teletext services in the UK and Europe. "Teletext" is sometimes a confusing term because of its apparent relation to telecom-industry technologies like the teletypewriter and...
Jonas Hietala
A small LED Cube As a follow up of my hobby project goals this autumn I have now completed the smallest goal there. I...
over a year ago
3
over a year ago
As a follow up of my hobby project goals this autumn I have now completed the smallest goal there. I got started a little with soldering by constructing a small 3x3x3 LED cube. Although extremely hard to see in this picture it actually worked without a hitch! It’s not the...
Notes on software...
Build a serverless ACID database with this one neat trick (atomic PutIfAbsent) Delta Lake is an open protocol for serverless ACID databases. Due to its simplicity, scalability,...
2 months ago
4
2 months ago
Delta Lake is an open protocol for serverless ACID databases. Due to its simplicity, scalability, and the number of open-source implementations, it's quickly becoming the DuckDB of serverless transactional databases for analytics workloads. Iceberg is a contender too, and is...
Style over Substance
How to use a Phase One H20 digital back on a medium format Hasselblad V camera (500EL/M) My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my...
over a year ago
67
over a year ago
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my Hasselblad 500EL/M medium format camera. Or, simply put, I bought an expensive old gadget for my even older analog camera, making it a digital camera. A gadget that was released in the...
Vitalik Buterin's...
Ask security questions
10 months ago
Computer Ads from...
Vote for the April 2004 Plus Post Topic If you are a paid subscriber, voting is open for one week
8 months ago
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
3
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features. I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Willem's Blog
Art of visualisation You learn from experts if you have the privilege to work with them, this month I had a chance to...
over a year ago
3
over a year ago
You learn from experts if you have the privilege to work with them, this month I had a chance to help a professional food photographer.
./techtipsy
Running my ThinkPad T430 with an eGPU in 2024 I probably shouldn’t have written down my notes on the eGPU setup I had years ago. I’d be lying if I...
4 months ago
50
4 months ago
I probably shouldn’t have written down my notes on the eGPU setup I had years ago. I’d be lying if I wasn’t considering remaking this setup with everything I’ve learned 6 years later. Oops. I got access to an allegedly-faulty AMD Radeon RX 480 and an NVIDIA GTX 1650 for free...
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL Next in database basics: 2. binary expressions and WHERE filters 3. indexes 4. a...
over a year ago
3
over a year ago
Next in database basics: 2. binary expressions and WHERE filters 3. indexes 4. a database/sql driver In this series we'll write a rudimentary database from scratch in Go. Project source code is available on Github. In this first post we'll build enough of a parser to...
Jonas Hietala
No game this month Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack...
over a year ago
2
over a year ago
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack inspiration and then it’s really hard to do something. Instead I’ve been thinking of something I could do that would make me wanna code like really bad again. I’m thinking of...
csvbase blog
There are 665 open licences, most are pretty rubbish you are in a maze of twisty licences, all alike
3 months ago
Louwrentius
Achieving 2.3 GB/s with 16 x 4 TB drives I'm in the process of building a new storage server to replace my 18 TB NAS. The server is almost...
over a year ago
3
over a year ago
I'm in the process of building a new storage server to replace my 18 TB NAS. The server is almost finished, it's now down to adding disk drives. I'm using the HGST 4 TB 7200 RPM drive for this build (SKU 0S03356) (review). I have not bought all drives at once, but slowly adding...
Applied Cartography
Letters to a Young Bartender Every straight white male is forced, character-creation-screen-style, to choose one overtly...
2 weeks ago
5
2 weeks ago
Every straight white male is forced, character-creation-screen-style, to choose one overtly consumptive hobby that in some small part defines their twenties and – God willing — their enduring adulthood. Some choose sourdough; many choose barbecue; I chose mixology. (A...
Jonas Hietala
Death to the Forum Well it was fun while it lasted, but now it’s gone and it’ll stay gone for a long time I think. It...
over a year ago
2
over a year ago
Well it was fun while it lasted, but now it’s gone and it’ll stay gone for a long time I think. It was mainly a test to see if I could do it and I’m really proud of my styling of it but it’s deader than in a grave, which isn’t really surprising, and it bothered me that I didn’t...
Jonas Hietala
Entering Pintos First week of school is over and it’s been full throttle from the start, in a good way. We’re having...
over a year ago
3
over a year ago
First week of school is over and it’s been full throttle from the start, in a good way. We’re having four courses and for once I like them all. We have an interesting math course, a useful course “Software Development in Theory” (boring but useful) and a big project course where...
Jonas Hietala
The I'm Great quote A new semester at the uni and so far it looks promising; I got a hold of some new books even though...
over a year ago
2
over a year ago
A new semester at the uni and so far it looks promising; I got a hold of some new books even though the bookstore had a snakelike queue similar to the Jörmungandr (the snake that encircled the earth in nordic mythology) and our new programming course started. This time it’s Ada’s...
Lighthouse Blog
How to combine multiple RSS feeds in one view
6 months ago
Home on Erik...
Implicit data and collaborative filtering A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right?...
over a year ago
3
over a year ago
A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right? People rate things 1-5 stars and then you have to predict missing ratings. While there's no doubt that the Netflix Prize was successful, I think it created an illusion that all...
Vitalik Buterin's...
Über Kollusion
over a year ago
watchTowr Labs -...
Fortinet FortiGate CVE-2024-23113 - A Super Complex Vulnerability In A Super Secure Appliance In... Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a...
2 months ago
5
2 months ago
Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a Format String vulnerability, unusually, in Fortinet's FortiGate devices. It affected (before patching) all currently-maintained branches, and recently was highlighted by CISA as...
Willem's Blog
The day I killed my LAN I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
over a year ago
Louwrentius
Benchmarking storage with Fio and generating charts of the results Introduction Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of...
over a year ago
3
over a year ago
Introduction Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of options to create a storage benchmark that would best reflect your needs. Fio allows you to assess if your storage solution is up to its task and how much headroom it has. Fio outputs...
Willem's Blog
iPad Pro next to my primary machine Using iPad Pro with Apple Pencil next to my computer to form a create powerhouse
over a year ago
Notes on software...
Delightful, production-grade replication for Postgres This is an external post of mine. Click here if you are not redirected.
4 months ago
Jonas Hietala
Let's build a VORON: Noise The build is going well and the printer is printing tons of random stuff and I’m generally in awe of...
9 months ago
3
9 months ago
The build is going well and the printer is printing tons of random stuff and I’m generally in awe of how cool the printer is. But there’s one thing that sucks: it’s damn loud. I knew that it wouldn’t be silent, but I wasn’t prepared for this kind of noise. Silent controller...
Vitalik Buterin's...
The end of my childhood
10 months ago
Birchtree
The future simply has more computers (members post) Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers...
5 days ago
10
5 days ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Vitalik Buterin's...
Proof of Stake FAQ
over a year ago
Louwrentius
Tracking down a faulty Storage Array Controller with ZFS One day, I lost two virtual machines on our DR environment after a storage vMotion. Further...
over a year ago
3
over a year ago
One day, I lost two virtual machines on our DR environment after a storage vMotion. Further investigation uncovered that any storage vMotion of a virtual machine residing on our DR storage array would corrupt the virtual machine's disks. I could easily restore the affected...
Abort Retry Fail
The History of Commodore, Part 3 Are you keeping up with the Commodore?
a year ago
Matt Mullenweg
Michael Palmisano on Collier I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on...
a month ago
4
a month ago
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on YouTube, and one of my favorite genres of videos is genius musicians breaking down the incredible musical stuff Jacob is doing. (He even has his own instrument now.) This reaction...
Good Enough
Season 3, Issue 2: Britney Coltrane 1. I ❤️HR The past two weeks Barry and Lettini have been building our next little project, and I...
a year ago
3
a year ago
1. I ❤️HR The past two weeks Barry and Lettini have been building our next little project, and I tried to deal with the company-side of work: setting up payroll, health insurance, and making sure we’re compliant (hello, bureaucracy!). Back in the day when Danny and I started...
Christian Selig
Juno for YouTube has been removed from the App Store For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store...
2 months ago
38
2 months ago
For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store stating that Juno does not adhere to YouTube guidelines and modifies the website in a way they don’t approve of, and alludes to their trademarks and iconography. I don’t personally...
Notes on software...
Writing a SQL database, take two: Zig and RocksDB For my second project while learning Zig, I decided to port an old, minimal SQL database project...
over a year ago
2
over a year ago
For my second project while learning Zig, I decided to port an old, minimal SQL database project from Go to Zig. In this post, in ~1700 lines of code (yes, I'm sorry it's bigger than my usual), we'll create a basic embedded SQL database in Zig on top of RocksDB. Other than the...
Applied Cartography
Tailwind black magic: swallowing all pointer events I wrote two days ago about a real and useful application of Tailwind black magic; here's...
8 months ago
3
8 months ago
I wrote two days ago about a real and useful application of Tailwind black magic; here's another. Buttondown has a dropzone component lets folks drag-and-drop items or click on it to get a file-picker. It's used for importing images, archives, CSVs, the works: because it's so...
Louwrentius
Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin If you want to compile PAR2 with multicore support on Linux, it may not work right away from source....
over a year ago
2
over a year ago
If you want to compile PAR2 with multicore support on Linux, it may not work right away from source. I used this version of PAR2 with multicore support. Update 2015: the original link is dead, I foud a copy of the source and put it on my own site here for you to download. First,...
Louwrentius
Calculating EXT2 EXT3 EXT4 stride size when using RAID When formatting a RAID device with an EXT filesystem, it is always advised to specify a stride size....
over a year ago
3
over a year ago
When formatting a RAID device with an EXT filesystem, it is always advised to specify a stride size. The format utility will take this stride size into account when formatting a device. The stride size is the number you get when you divide the 'chunck' size, as specified with...
./techtipsy
How to make digital copies of your old video tapes Introduction This is a short overview of one way to take your old video tapes and make digital...
over a year ago
30
over a year ago
Introduction This is a short overview of one way to take your old video tapes and make digital copies of their contents. To get started, you will need the following: old video tapes that you want to make copies of (VHS and its variants) a device that can read analog AV signals...
Home on Erik...
The mathematical principles of management I've read about 100 management books by now but if there's something that always bothered me it's...
over a year ago
2
over a year ago
I've read about 100 management books by now but if there's something that always bothered me it's the lack of first principles thinking. Basically it's a ton of heuristics. And heuristics are great, but when you present heuristics as true objectives, it kind of clouds the...
Odds and Ends of...
Keir Starmer needs to prepare for a world without America Today's empires, tomorrow's ashes.
a month ago
latest projects -...
3D Model Viewer Improvements [Software] Unlocking the embedded gimbals
a year ago
Home on Erik...
Luigi conquering the world I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself...
over a year ago
3
over a year ago
I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself a Luigi costume a month in advance. Only to realize I was going to be out of town the whole weekend.
Jonas Hietala
Netrunner Lindhska Store Championship Örebro After the awesomeness during the previous store championship, I decided to go to the store...
over a year ago
2
over a year ago
After the awesomeness during the previous store championship, I decided to go to the store championship at Lindhska Bokhandel in Örebro. I brought a modified version of the same corp I used the last time, a Blue Sun kill deck and a new runner with Leela Patel. See the links for...
computers are bad
2024-01-21 multi-channel audio part 1 Stereophonic or two-channel audio is so ubiquitous today that we tend to refer to all kinds of...
11 months ago
78
11 months ago
Stereophonic or two-channel audio is so ubiquitous today that we tend to refer to all kinds of pieces of consumer audio reproduction equipment as "a stereo." As you might imagine, this is a relatively modern phenomenon. While stereo audio in concept dates to the late 19th...
Vitalik Buterin's...
我在加密世界的一些个人体验
over a year ago
Christian Selig
Smart Open Xcode If you’re like me, you often have multiple versions of Xcode installed. One or two beta versions, a...
a year ago
61
a year ago
If you’re like me, you often have multiple versions of Xcode installed. One or two beta versions, a stable version, and maybe another version in case the most recent stable version has something weird about it. I also really like mapping my Caps Lock key to something more useful,...
Home on Erik...
Luigi success So Luigi, our open sourced workflow engine in Python, just recently passed 1,000 stars on Github,...
over a year ago
3
over a year ago
So Luigi, our open sourced workflow engine in Python, just recently passed 1,000 stars on Github, then shortly after passed mrjob as (I think) the most popular Python package to do Hadoop stuff. This is exciting!
Willem's Blog
Syncing files seamlessly between smartphone and tablet In order to optimise my workflow, I was looking for a way to seamlessly access the same files on...
over a year ago
2
over a year ago
In order to optimise my workflow, I was looking for a way to seamlessly access the same files on both my computer and smartphone. Read along to find out how I did it.
./techtipsy
FOSDEM 2024: my experience, some notes and tech tips I finally went to FOSDEM. I’m sleep-deprived, completely exhausted, but incredibly excited about the...
10 months ago
79
10 months ago
I finally went to FOSDEM. I’m sleep-deprived, completely exhausted, but incredibly excited about the whole experience. I’ve split this post into three separate sections. overall notes on the conference and the city less technical, but sheds light on the FOSDEM experience the...
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy In Paul Graham’s latest essay, he writes: The theme of Brian's talk was that the conventional wisdom...
3 months ago
2
3 months ago
In Paul Graham’s latest essay, he writes: The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
Arduino Blog
Giving a teenage pet turtle a synthetic pizza-ordering voice If B. F. Skinner’s famous research proved anything, it is that virtually all animals are capable of...
3 months ago
33
3 months ago
If B. F. Skinner’s famous research proved anything, it is that virtually all animals are capable of some degree of training. Training is really just taking advantage of an animal’s natural inclination to adapt for survival, which is something all living organisms do. With that in...
Jonas Hietala
Microfeatures in my blog xkcd: Nerd sniping A while I ago I encountered a blog post called Microfeatures I Love in Blogs and...
5 months ago
1
5 months ago
xkcd: Nerd sniping A while I ago I encountered a blog post called Microfeatures I Love in Blogs and Personal Websites, and together with the related Hacker News discussion I got nerd sniped. (I spent more time than I care to admit implementing new and exciting microfeatures for...
Louwrentius
Recovering a lost partition using gpart Even today people do not understand how important it is for the safety of your data to make backups....
over a year ago
2
over a year ago
Even today people do not understand how important it is for the safety of your data to make backups. I was asked to perform some data recovery on a hard drive of an old computer, which still contained important documents and photo's. The first thing I did was to make a disk image...
computers are bad
2023-03-24 docker Lately I tend to stick to topics that are historic by at least twenty years, and that does have a...
a year ago
62
a year ago
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...
somenice
Painting of Russet Lake Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the...
3 months ago
36
3 months ago
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the natural world is alive with vibrant colours and serene beauty. One of the most stunning scenes unfolds at Russet Lake, where the iconic Fissile Mountain is mirrored perfectly in the...
Computer Ads from...
Mark Williams' C Programming System What C did for Programming Mark Williams has done for C Programming
4 months ago
Louwrentius
Laptop or netbook as router? If you want a router for distribution of internet to your computers at home, there are several...
over a year ago
2
over a year ago
If you want a router for distribution of internet to your computers at home, there are several options. buy some embedded device from Linksys, Draytek, Asus, 3com, ZyXtel or netgear This type of hardware is cheap, economical, and gets you up and running in a few minutes. The...
Matt Mullenweg
DrupalCon Singapore This week, DrupalCon Singapore is bringing together an incredible community of Drupal platform...
a week ago
4
a week ago
This week, DrupalCon Singapore is bringing together an incredible community of Drupal platform creators, developers, and supporters.  Last year, I had the chance to share the stage with Dries Buytaert, the founder of Drupal, and the conversation stuck with me. It highlighted the...
Vitalik Buterin's...
An incomplete guide to stealth addresses
a year ago
Jonas Hietala
Life and Shields Time is running out! At least the more technical parts are mostly done. The ships have an acceptable...
over a year ago
2
over a year ago
Time is running out! At least the more technical parts are mostly done. The ships have an acceptable AI, they have rechargeable shields and they can now even be killed. Currently the game is far too easy, but it’s starting to look a little cooler at least.
Home on Erik...
Model benchmarks A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share...
over a year ago
2
over a year ago
A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share some insights. Here's benchmarks for some models. Note that we don't use all of them in production.
./techtipsy
AMD Ryzen 7 5700G: first impressions on Fedora 34 Introduction I’ve covered my self-hosting setup in a previous post. It has been a couple of months...
over a year ago
44
over a year ago
Introduction I’ve covered my self-hosting setup in a previous post. It has been a couple of months and the setup has mostly been fine. Sure, the power usage was pretty big under load, and yes, my internet did cut out every time I turned the VM on with all the services starting,...
Home on Erik...
3D in D3 I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for...
over a year ago
2
over a year ago
I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for instance this demo (will provide a longer writeup soon). D3 doesn't have support for 3D but you can do projections into 2D pretty easily.
./techtipsy
Fairphone 5: my heavily biased overview after 58 days of use (and counting) After months of contemplating I finally pulled the trigger and got myself a Fairphone 5. The...
9 months ago
107
9 months ago
After months of contemplating I finally pulled the trigger and got myself a Fairphone 5. The fact that iPhone X stopped receiving major iOS updates certainly helped make that decision. “But why? My Xiaomi/Oneplus/Samsung/other glued-together device is like so much cheaper and...
Willem's Blog
Flying in a C47-A (DC-3) classic plane Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received,...
over a year ago
3
over a year ago
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received, experiencing aviation history unlike anything else!
watchTowr Labs -...
Veeam Backup & Response - RCE With Auth, But Mostly Without Auth (CVE-2024-40711) Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup &...
3 months ago
2
3 months ago
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup & Replication’. Unfortunately, so is every ransomware operator, given it's somewhat 'privileged position' in the storage world of most enterprise's networks. There's no point deploying...
Louwrentius
How to resolve extreme memory usage on Windows 2008 R2-based file servers I'm responsible for a file server with about 5 terrabytes of data. The file server is based on...
over a year ago
2
over a year ago
I'm responsible for a file server with about 5 terrabytes of data. The file server is based on Windows 2008 R2. I've noticed extreme memory usage on the server. After a reboot, it slowly builds up until almost all RAM memory is consumed. So I googled around and found this post...
Opsbros
WetSocks Revival How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do...
over a year ago
3
over a year ago
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do to get WetSocks Windows 98 tray weather app working again.
Jonas Hietala
Evolution of RTS games Introduction This is an essay for the course Game Design and I’m going to give you a ride through...
over a year ago
2
over a year ago
Introduction This is an essay for the course Game Design and I’m going to give you a ride through the evolution of RTS game genre. I like RTS games and I’ve played them for as long as I can remember, from the classic Red Alert and Age of Empires to the newer Supreme Commander and...
./techtipsy
Surviving the front page of HackerNews on a 50 Mbps uplink Around a month ago I shared my blog post on HackerNews. I guess I lucked out with the choice of the...
over a year ago
35
over a year ago
Around a month ago I shared my blog post on HackerNews. I guess I lucked out with the choice of the topic, because it brought out a lot of enthusiasts who shared their own experiences with older machinery that still works in 2022. I really appreciate the feedback and...
Yazin Alirhayim
How do you know that an API does what it says it does? Having been in fintech for a while, I’ve noticed something in common between the many new startups...
over a year ago
2
over a year ago
Having been in fintech for a while, I’ve noticed something in common between the many new startups that come and go. They all require access to personal information. A specific example that comes to mind is the Plaid-like solution we developed while working on amal. We’d ask...
computers are bad
2024-10-19 land art and isolation Prescript: I originally started writing this with the intent to send it out to my supporter's...
2 months ago
34
2 months ago
Prescript: I originally started writing this with the intent to send it out to my supporter's newsletter, EYES ONLY, but it got to be long and took basically all day so I feel like it deserves wider circulation. You will have to tolerate that it begins in the more conversational...
computers are bad
2023-10-22 cooler screens Audible even over the squeal of an HVAC blower with a suffering belt, the whine of small, high...
a year ago
69
a year ago
Audible even over the squeal of an HVAC blower with a suffering belt, the whine of small, high velocity fans pervades the grocery side of this Walgreens. Were they always this loud? I'm not sure; some of the fans sound distinctly unhealthy. Still, it's a familiar kind of noise to...
Computer Ads from...
IBM RISC System/6000 Family Just when PowerSeeker thought they had nowhere to go...
7 months ago
On Life and Lisp
Apple GPU drivers now in Asahi Linux We’re excited to announce our first Apple GPU driver release! We’ve been working hard over the past...
over a year ago
6
over a year ago
We’re excited to announce our first Apple GPU driver release! We’ve been working hard over the past two years to bring this new driver to everyone, and we’re really proud to finally be here. This is still an alpha driver, but it’s already good enough to run a smooth desktop...
Birchtree
How Flight Simulator helped my flying anxiety (members post) It turns out video games really can impact how you view the world.
2 weeks ago
./techtipsy
They make USB-C cables with displays now! I’ve reached a point in my setup where most of the devices that I use are based around the coveted...
6 months ago
83
6 months ago
I’ve reached a point in my setup where most of the devices that I use are based around the coveted USB-C port. This meant that I had a valid reason to get a few extra because I didn’t yet have a stockpile of good USB-C cables. That’s when I found out that there exist cables that...
Jonas Hietala
Good and Bad Programmers Every now and day blog posts about what it takes to be a good programmer or how you figure out if...
over a year ago
3
over a year ago
Every now and day blog posts about what it takes to be a good programmer or how you figure out if someone is a bad programmer arrives. There’s always talk about how you find the good programmers in interviews and the topic is always hot in schools and universities. Today I read...
Matt Blewitt
7 Databases in 7 Weeks for 2025 I’ve been running databases-as-a-service for a long time, and there are always new things to keep...
3 weeks ago
5
3 weeks ago
I’ve been running databases-as-a-service for a long time, and there are always new things to keep abreast of - new technologies, different ways of solving problems, not to mention all the research coming out of universities. In 2025, consider spending a week with each of these...
Abort Retry Fail
The History of Slackware The Oldest Surviving Linux Distribution
a year ago
Willem's Blog
Cutting Cloud Costs Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud...
a year ago
2
a year ago
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud expenses!
Lighthouse Blog
Updates December 15: Rebranding to Lighthouse and complete redesign
a year ago
Home on Erik...
Benchmark of Approximate Nearest Neighbor libraries Annoy is a library written by me that supports fast approximate nearest neighbor queries. Say you...
over a year ago
3
over a year ago
Annoy is a library written by me that supports fast approximate nearest neighbor queries. Say you have a high (1-1000) dimensional space with points in it, and you want to find the nearest neighbors to some point.
Matt Blewitt
Software Sprezzatura Sprezzatura is “a certain nonchalance, so as to conceal all art and make whatever one does or says...
over a year ago
2
over a year ago
Sprezzatura is “a certain nonchalance, so as to conceal all art and make whatever one does or says appear to be without effort and almost without any thought about it”, coined by Castiglione in 1528’s The Book of the Courtier.
Style over Substance
CANARY Corrugated Cardboard Cutter The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases...
over a year ago
73
over a year ago
The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases ever. During the COVID-19 lockdowns, we all started shopping online a lot more. The number of cardboard boxes in our house basically quadrupled overnight and cutting them down to size...
Vitalik Buterin's...
How will Ethereum's multi-client philosophy interact with ZK-EVMs?
a year ago
Willem's Blog
Creating the ultimate commuter bike Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
over a year ago
Electronics etc…
Teardown of the TM4313 GPS Disciplined Oscillator Introduction What is a GPSDO? The TM4313 GPSDO Power Consumption Inside the TM4313 The TM4313...
a year ago
94
a year ago
Introduction What is a GPSDO? The TM4313 GPSDO Power Consumption Inside the TM4313 The TM4313 Schematic Frequency or Phase Lock Loop? OCXO Temperature The Curious Case of the MAX6192 Voltage Reference The Discrete Tuning DAC GPS Module Microcontroller instead of NMEA Serial...
Willem's Blog
Search like a pro: Google search operators Read along for a comprehensive list of advanced Google search operators that allow you to filter...
over a year ago
2
over a year ago
Read along for a comprehensive list of advanced Google search operators that allow you to filter your search results.
Notes on software...
An effective product manager There are three specific activities I have loved in some product managers I've worked with (and...
a year ago
2
a year ago
There are three specific activities I have loved in some product managers I've worked with (and missed in others). tldr; Talk with customers and prospects Develop and share a vision Evangelize Talk with customers and prospects As a product manager, your superpower over...
Arduino Blog
Boring rice cooker becomes uruchimai powerhouse Rice cookers are staple appliances in about half of the world and basic models are very affordable....
5 months ago
60
5 months ago
Rice cookers are staple appliances in about half of the world and basic models are very affordable. But those are simple machines that are about as “dumb” as electric kettles. The result is often rice that has been sitting in the warming stage for too long, making the bottom...
Willem's Blog
Three tips to make a content strategy work Consider these three things to maximise the effect of the words you write for your website, blog or...
over a year ago
Vitalik Buterin's...
Understanding PLONK
over a year ago
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 2: The Surge
2 months ago
Louwrentius
Bash Shell Function Library (BSFL) released. The Bash Shell Function Library (BSFL) is a small Bash script that acts as a library for bash...
over a year ago
2
over a year ago
The Bash Shell Function Library (BSFL) is a small Bash script that acts as a library for bash scripts. It provides a couple of functions that makes the lives of most people using shell scripts a bit easier. The purpose of this library is to provide pre-build functions for...
Louwrentius
HP Procurve "auto DoS" feature causing network problems A feature on more recent HP Procurve models (18xx series, such as 1810G etc.) is called "Auto DoS"....
over a year ago
3
over a year ago
A feature on more recent HP Procurve models (18xx series, such as 1810G etc.) is called "Auto DoS". You can find it in the section "Security" and then "Advanced security". If you enable the Auto DoS feature, traffic is blocked based on one of these conditions: the source port...
Notes on software...
Lessons learned streaming building a Scheme-like interpreter in Go I wanted to practice making coding videos so I did a four-part series on writing a basic Scheme-like...
a year ago
2
a year ago
I wanted to practice making coding videos so I did a four-part series on writing a basic Scheme-like language (minus macros and arrays and tons of stuff). I picked this simple topic because I wanted a low-stakes way to learn what I did not know about making videos. Here was the...
Good Enough
TIL: Overriding Permalink Generation in FriendlyId FriendlyId is a helpful Ruby gem that streamlines creating permalinks and slugs for Rails...
3 months ago
3
3 months ago
FriendlyId is a helpful Ruby gem that streamlines creating permalinks and slugs for Rails applications. In Pika we're using it to help with generating permalinks for blog posts and pages as well as slugs for tags. When a customer wrote in with a request to modify the behavior of...
Home on Erik...
Giving more tools to software engineers: the reorganization of the factory It's a popular attitude among developers to rant about our tools and how broken things are. Maybe...
over a year ago
2
over a year ago
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe I'm an optimistic person, because my viewpoint is the complete opposite! I had my first job as a software engineer in 1999, and in the last two decades I've seen software engineering...
Willem's Blog
The best bike computer app: Cyclemeter Collect advanced bike ride data using your smartphone connected to external Bluetooth sensors and a...
over a year ago
3
over a year ago
Collect advanced bike ride data using your smartphone connected to external Bluetooth sensors and a steer mounted display.
Style over Substance
Shooting the Ligero 3D-printed Mamiya Press camera by MaxWanderlush Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the...
over a year ago
66
over a year ago
Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the panoramic pinhole Goodman Scura and the MPWide, a modified Fuji Instax Wide 300. The MPWide is a mod by the talented Mario, otherwise known as MaxWanderlush. He has been releasing...
Jonas Hietala
Ugly and Slow Progress Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I...
over a year ago
2
over a year ago
Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I have an idea and it might be good, all I need to do is execute it. Right? Programmer graphics coming to take you away! Anyway it’s going to be a risk-like game with a twist: you can...