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
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!
Neil Madden
XSS doesn’t have to be game over
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game...
over a year ago
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game over” event for defence: there is no effective way to recover if an attacker can inject code into your site. Brian Campbell refers to this as “XSS Nihilism”, which is a great...
Old Vintage...
CAP-X and COMP-X: how the Tandy Pocket Computers got a sucky Japanese assembler
I grew up primarily with the Commodore 64, where if you wanted to do anything really cool and...
10 months ago
I grew up primarily with the Commodore 64, where if you wanted to do anything really cool and useful, you had to do it in 6502 assembly language. Today I still write 6502 assembly, plus some Power ISA and even a little TMS9900. I like assembly languages and how in control of the...
Jonas Hietala
IDA Summer of Code 2014
IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in...
over a year ago
IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in a project of their choice and if selected they get paid to work on it for 4 weeks during the summer. In return the university get to show off the students and their projects in...
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
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...
Style over Substance
Peak Design quick-connect Leash and Cuff straps
My camera collection has been growing steadily over the years, but it’s been expanding even faster...
over a year ago
My camera collection has been growing steadily over the years, but it’s been expanding even faster during the COVID-19 lockdowns. Online shopping therapy keeps me sane while I’m cooped up at home, and with easy access to eBay and other auction sites my GAS – photographers...
Louwrentius
Switching away from Debian to Ubuntu LTS
Over the last couple of years, Debian Linux has released new stable versions about every two years....
over a year ago
Over the last couple of years, Debian Linux has released new stable versions about every two years. This pace is great for progress, but there is a serious problem. This problem is related to their support for older Debian stable versions.
If you read the quote below from the...
Construction Physics
How We Got the Lithium-ion Battery
It took decades of research, performed around the world, before a practical lithium-ion battery was...
a month ago
It took decades of research, performed around the world, before a practical lithium-ion battery was possible.
computers are bad
2023-08-19 meanwhile elsewhere
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard...
a year ago
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard time getting to it. Instead I did the yard work, edited
and uploaded a YouTube video, and then spewed out a Cohost thread as long as a
blog post. So in lieu of your regularly...
Louwrentius
Did you know that RDP is as insecure as telnet?
Microsoft developed the remote desktop protocol in order to allow remote GUI-
based access to hosts....
over a year ago
Microsoft developed the remote desktop protocol in order to allow remote GUI-
based access to hosts. It is easy to pick on Microsoft and I do respect what
they have accomplished, however, it may not come as a surprise that they did
it all wrong with RDP in terms of security.
By...
Jonas Hietala
Gruvbox Syntax Highlighting for Pandoc
Edit: I have updated the highlighting again so the inline code used as examples have changed. I...
over a year ago
Edit: I have updated the highlighting again so the inline code used as examples have changed. I guess I should’ve used images to record the look.
Recently when I reinstalled Slackware I decided to restyle my workspace as well. I settled on gruvbox with neovim and using the...
Simply Explained
Static webhosting benchmark: AWS, Google, Firebase, Netlify, GitHub & Cloudflare
Static websites are still a hot topic. They are fast, and they're incredibly secure because there...
over a year ago
Static websites are still a hot topic. They are fast, and they're incredibly secure because there isn't a CMS to hack. Once you build a static website, however, the question becomes: Where do I host?In other words: what is the fastest static website hosting provider in 2020?...
Vitalik Buterin's...
Having a safe CEX: proof of solvency and beyond
over a year ago
Willem's Blog
Limitations of sleep tracking using a wearable
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
over a year ago
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
Computer Ads from...
Black Friday - Happy Birthday sale
Let's mix things up!
a month ago
Home on Erik...
Momentum and mean reversion might just be volatility bias
The Economist just published an article called The best, the worst and the ugly. By looking at...
over a year ago
The Economist just published an article called The best, the worst and the ugly. By looking at historical performance for mutual funds, they find strong support for momentum and mean reversion. Picking the best or the worst fund over the previous five years gives great returns...
computers are bad
2023-11-25 the curse of docker
I'm heading to Las Vegas for re:invent soon, perhaps the most boring type of
industry extravaganza...
a year ago
I'm heading to Las Vegas for re:invent soon, perhaps the most boring type of
industry extravaganza there could be. In that spirit, I thought I would write
something quick and oddly professional: I'm going to complain about Docker.
Packaging software is one of those fundamental...
Matt Blewitt
Service Objects in Rails
Let’s kick off 2016 with a whistle-stop tour of one of my favourite
OO approaches, Service Objects,...
over a year ago
Let’s kick off 2016 with a whistle-stop tour of one of my favourite
OO approaches, Service Objects, in the context of Rails.
Bryan Braun - Blog
Links #10
How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast...
5 months ago
How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast guest. It puts you in the shoes of a podcaster, showing you what they need, and how you can be a “sure thing” for them. As usual, there are no short cuts. You gotta do the work!
A...
Notes on software...
Writing an x86 emulator from scratch in JavaScript: 1. a stack and register machine
Better yet, take a look at this post walking through emulating x86 ELF binaries in Go:
Emulating...
over a year ago
Better yet, take a look at this post walking through emulating x86 ELF binaries in Go:
Emulating linux/AMD64 userland: interpreting an ELF binary
2. system calls
In this post we'll create a small virtual machine in JavaScript and
use it to run a simple C program compiled...
Jonas Hietala
Summer job at Configura
This is a wrap up of my 5 weeks at Configura as a summer internship. There were 6 interns and we had...
over a year ago
This is a wrap up of my 5 weeks at Configura as a summer internship. There were 6 interns and we had two teams doing different things. I worked with two other awesome guys and it was great!
The Premise
We had two assignments this summer. One was to create an optimized version of...
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
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
Louwrentius
'A Moment Of Silence: OpenSolaris Is Dead'
The last release of OpenSolaris dates back to July 2009. The next release was
scheduled for March...
over a year ago
The last release of OpenSolaris dates back to July 2009. The next release was
scheduled for March 2010, but Oracle did not release anything. It is dead
silent around OpenSolaris.
On 12 July 2010, the OpenSolaris Government Board sent out an ultimatum
to Oracle: "please...
Jonas Hietala
We moved away from the city
When me and my girlfriend Veronica moved to Linköping to study at the University the plan was never...
over a year ago
When me and my girlfriend Veronica moved to Linköping to study at the University the plan was never to stay there permanently. We just moved there to study but the longterm plan, if you can have one at that stage, was always to move back to the north of Sweden where we came...
Arduino Blog
ThermoGrasp brings thermal feedback to virtual reality
Imagine playing Half-Life: Alyx and feeling the gun heat up in your hand as you take down The...
3 months ago
Imagine playing Half-Life: Alyx and feeling the gun heat up in your hand as you take down The Combine. Or operating a robot through augmented reality and feeling coldness on your fingers when you get close to exceeding the robot’s limits. A prototype device called ThermoGrasp...
Matt Blewitt
So, You Want To Build A DBaaS
So you’ve made the decision to build a Database-as-a-Service product (or something similar). As a...
a year ago
So you’ve made the decision to build a Database-as-a-Service product (or something similar). As a result, you are making state and coordination your problem. Here are some things I’ve learned to keep in mind as you embark on this project, in no particular order (other than the...
Louwrentius
Some pretty NAS case designs
If you are planning on building your own NAS box, I have some suggestions
regarding the case.
In my...
over a year ago
If you are planning on building your own NAS box, I have some suggestions
regarding the case.
In my opinion, most computer case designers have absolutely no taste.
Antec and Lian Li do create nice cases, but not that spectacular. And Lian Li is
just very expensive. A fairly new...
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
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...
Birchtree
Was 2024 a good year? Oh, and all the metrics and earnings info you could ever want.
2024 was a weird year for the Birchler household. Without getting into the details, two things put a...
3 days ago
2024 was a weird year for the Birchler household. Without getting into the details, two things put a damper on the year right from the jump: a health issue and a radical increase in monthly spending. I won't go into the details here, but over the course of
./techtipsy
btrbk is awesome
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use...
over a year ago
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use the btrfs file system for my operating system and my data.
Snapshots are one half of my “whoops, there goes all my work” strategy (backups
are the other half).
I’ve written about...
Simply Explained
Why I don't take sponsorships
Last year I made that video in response to a sponsorship offer that I got from various VPN...
over a year ago
Last year I made that video in response to a sponsorship offer that I got from various VPN providers. They all told me the same thing: our service is the best way to protect your privacy, and we were hoping you could convey this message in one of your videos.So I decided to do...
Matt Blewitt
Logical Replication Guardrails
I’ve been working with logical replication in PostgreSQL recently, and I wanted to share a few...
6 months ago
I’ve been working with logical replication in PostgreSQL recently, and I wanted to share a few thoughts on how to implement some guardrails to make things easier on operators.
Engineers Need Art
Building Quarter-Cab - Phase I
Lets build a simple virtual pinball controller to bring more immersion to your game.
8 months ago
Lets build a simple virtual pinball controller to bring more immersion to your game.
Arduino Blog
CapibaraZero: a student’s journey in reinventing hacking tools with Arduino
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a...
a month ago
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a multifunctional security and hacking tool developed by young innovator Andrea Canale. Inspired by the popular Flipper Zero, a portable device used to interact with digital systems, Canale...
Christian Selig
Announcing Apollo: a new Reddit app for iPhone
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called...
over a year ago
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called Apollo and it’s a new Reddit app for iPhone.
I’ve been a Reddit user for about four years now, and the site is a constant source of interesting discussion, hilarity and news for me...
./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
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,...
lcamtuf’s thing
Random objects: Intel Edison
A glimpse of the missteps of x86 in the embedded world.
6 months ago
A glimpse of the missteps of x86 in the embedded world.
Notes on software...
Thinking about functional programming
Someone on Discord asked about how to learn functional programming.
The question and my initial...
a year ago
Someone on Discord asked about how to learn functional programming.
The question and my initial tweet on the subject prompted an
interesting
discussion
with Shriram
Krishnamurthi and other folks.
So here's a slightly more thought out exploration.
And just for backstory sake: I...
Arduino Blog
Deploy your smart meeting room management system with Arduino GIGA
Managing shared spaces, especially meeting rooms, can be a headache in busy offices. At Arduino,...
2 weeks ago
Managing shared spaces, especially meeting rooms, can be a headache in busy offices. At Arduino, we’ve experienced it firsthand in our flexible and dynamic offices around the world – where colleagues could often be seen wandering around with their laptops, trying to find a quiet...
Ken Shirriff's blog
Two interesting XOR circuits inside the Intel 386 processor
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a...
a year ago
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching to a CMOS implementation.
I've been reverse-engineering parts of the 386 chip and came across two interesting and completely different
circuits...
Jonas Hietala
I, Robot
Here are the results of the big robot construction course we had before christmas! The whole process...
over a year ago
Here are the results of the big robot construction course we had before christmas! The whole process went smooth and our group was amazing. The design and building of the robot went well even though in hindsight I would’ve changed a lot of stuff. The ending competition didn’t go...
Ian's Blog
What the heck is OCSP?
The online certificate status protocol, or OCSP for short, is a way for TLS clients (like your web...
over a year ago
The online certificate status protocol, or OCSP for short, is a way for TLS clients (like your web browser) to check if a certificate has been revoked or not.
Certificate Revocation?
With asymmetrical encryption, your encryption is only as good as long as your private key remains...
Jonas Hietala
Extracting schedule information from timeedit
At LIU we use timeedit to track our schedules. Recently they updated their interface and improved...
over a year ago
At LIU we use timeedit to track our schedules. Recently they updated their interface and improved some parts. It’s now possible to create a prenumeration of a collection of courses exported as csv which can then be imported to other calendar apps. But they also started to...
Azad's Blog
RealityCapture to Gaussian Splatting using PostShot
TLDR: Tutorial on using RealityCapture to align an image dataset, export the alignment, and import...
5 months ago
TLDR: Tutorial on using RealityCapture to align an image dataset, export the alignment, and import it into PostShot to train Gaussian Splats without using COLMAP. Video tutorial RealityCapture Import your images and align them. If you ever need help with tricky dataset, refer to...
Matt Mullenweg
Carmack & Rogan
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on...
a month ago
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on YouTube again, which means the gems from the archives can now pop up. I was alerted to this conversation between Joe Rogan and John Carmack, and it’s pure gold. I know I’m five...
GitButler
Stacked Branches with GitButler
GitButler can now manage dependent branches that are stacked, including managing stacked GitHub PRs.
4 weeks ago
GitButler can now manage dependent branches that are stacked, including managing stacked GitHub PRs.
Vitalik Buterin's...
What do I think about biometric proof of personhood?
a year ago
Jonas Hietala
The killer features of the Steam Deck
In the beginning of the year I gave myself a late Christmas gift and bought a Steam Deck for...
a year ago
In the beginning of the year I gave myself a late Christmas gift and bought a Steam Deck for myself.
There were two main reasons I decided to buy it:
burnout and depression by picking up gaming again.
And boy did it deliver.
The Deck is probably the most impressive thing I can...
Construction Physics
The Influence of Bell Labs
We’ve talked previously about Bell Labs’ long, storied history as an innovation engine and a...
a month ago
We’ve talked previously about Bell Labs’ long, storied history as an innovation engine and a generator of new technology.
Bryan Braun - Blog
Made in 2024
Here are some things I made in 2024:
Music Box Fun: Advanced Editing (a new major feature):
...
2 days ago
Here are some things I made in 2024:
Music Box Fun: Advanced Editing (a new major feature):
Adds multiple-note selection for bulk operations on notes (like deletion, copy/paste, nudging and dragging)
Also includes a “space editor” for arbitrarily adding/removing space...
Birchtree
Gemini 2.0: speed and deep research impress
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today...
3 weeks ago
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today we’re excited to launch our next era of models built for this new agentic era: introducing Gemini 2.0, our most capable model yet. With new advances in multimodality —
Applied Cartography
You should build this:
A prior iteration of this site had a page called "Project ideas" that listed a bunch of things that...
2 months ago
A prior iteration of this site had a page called "Project ideas" that listed a bunch of things that I'd like to build. This was a good idea and useful in its own right (I got a few people to build companies and projects based on them, and it was a useful avenue by which folks...
Jonas Hietala
Postmortem: Balls
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one...
over a year ago
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one single game?! Well now I’m not counting the visual basic nightmare mastermind I made a long time ago but a real game. Whatever that means. I’ve had these monster-projects;
Point...
Vitalik Buterin's...
A Note on Metcalfe's Law, Externalities and Ecosystem Splits
over a year ago
Vitalik Buterin's...
Should Ethereum be okay with enshrining more things in the protocol?
a year ago
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
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.
computers are bad
2024-09-08 private lines
I have been meaning, for some time, to write about common carrier switching
arrangements (CCSAs)....
3 months ago
I have been meaning, for some time, to write about common carrier switching
arrangements (CCSAs). These could be considered an early form of products like
"virtual private ethernet:" a private telephone network that was served by the
same switching machines that handled the...
Buck on Software
Don't be foie gras
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
over a year ago
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
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
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...
Applied Cartography
Gosling’s Old Rum
Virginia has draconian liquor laws, which means I have to get interesting bottles shipped from...
11 months ago
Virginia has draconian liquor laws, which means I have to get interesting bottles shipped from [REDACTED], a site on which I am very prone to judging a book by its cover; every month I'll end up purchasing a bottle of something purely because it looks interesting and I can...
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
5 months ago
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
7 months ago
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
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,...
Jonas Hietala
2015 in Review
Previous reviews: 2010, 2011, 2012, 2013 and 2014.
2015 Geek Achievements
Finished my university...
over a year ago
Previous reviews: 2010, 2011, 2012, 2013 and 2014.
2015 Geek Achievements
Finished my university studies and got a Master in Computer Science.
Discovered a new boardgame love: Android Netrunner.
Finished top 4 in my first Netrunner Store Championship.
Won a small local Netrunner...
Arduino Blog
Assess your aquarium’s health with an AI-enabled ultrasonic sensor
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can...
8 months ago
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can accumulate, which leads to a loss in fish and plant populations if not fixed quickly. But because most water testing, especially in aquariums, is done primarily on the surface, vital...
Posts on Made of...
The architecture of declarative configuration management
With the ongoing move towards “infrastructure-as-code” and similar notions, there’s been an ongoing...
over a year ago
With the ongoing move towards “infrastructure-as-code” and similar notions, there’s been an ongoing increase in the number and popularity of declarative configuration management tools. This post attempts to lay out my mental model of the conceptual architecture and internal...
Posts on Made of...
A week with the iPhone
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about...
over a year ago
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about it.
First, the little things. It is, in typical Apple fashion, an incredibly slick piece of work. Scrolling and zooming images or webpages is simple, easy, and, well, just fun to do...
anderegg.ca
The “Home Alone” / “NiGHTS into Dreams” connection
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one...
3 weeks ago
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one of my favourites from the Saturn lineup, and it also had a free Christmas version.
In it, there’s a song I really love that plays on the level select screen called Gate of Your...
Louwrentius
Highpoint RocketRAID 2320 on Debian howto
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed...
over a year ago
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed binary driver.)
http://www.highpoint-tech.com/USA/bios_rr2320.htm
Install the kernel headers if you haven't already
- apt-get install linux-headers-2.6.18-6-k7
- extract the...
Applied Cartography
Git one-liner: get the earliest commit from X hours ago
I wanted to get a commit that was temporally some distance back as part of my experimentation with...
7 months ago
I wanted to get a commit that was temporally some distance back as part of my experimentation with git cliff. This took some time to do, but here's what I ended up with:
git log --since="72 hours ago" --until="now" --reverse --pretty=format:"%h" | head -1
Nothing particularly...
Louwrentius
How to run Debian Linux on an Intel based Mac Mini
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy...
over a year ago
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy efficient. When idle, it uses around 20 watts. I'm using
one of the first Intel-based Minis with an Intel Core Duo chip, running at 1.6
Ghz.
I want to use this mini as an expensive router...
Jonas Hietala
Calling closures in a Vec
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs:...
over a year ago
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs: Vec<||> = Vec::new();
fs.push(|| { println!("imma firing my lazer"); });
for f in fs.iter() {
f(); // error: expected function but found `&||`
};
Maybe if we borrow...
Style over Substance
Create a Hue-compatible DIY LED light sculpture
Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art,...
over a year ago
Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art, using cheap LED strips and DIY parts you can order online.
The post Create a Hue-compatible DIY LED light sculpture appeared first on Style over Substance.
Vitalik Buterin's...
La votación mediante blockchain está sobrevalorada entre personas desinformadas pero subestimada...
over a year ago
Matt Mullenweg
Age-gating
I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and...
a month ago
I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and democratic societies can decide their own rules there. But it should be handled and authenticated as low-level as possible, at the operating system layer. See also: Australia’s...
computers are bad
2024-07-31 just disconnect the internet
So, let's say that a security vendor, we'll call them ClownStrike, accidentally
takes down most of...
5 months ago
So, let's say that a security vendor, we'll call them ClownStrike, accidentally
takes down most of their Windows install base with a poorly tested content
update. Rough day at the office, huh? There are lots of things you could say
about this, lots of reasons it happens this way,...
Jonas Hietala
2015 Read Books
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good.
Fiction
A Song...
over a year ago
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good.
Fiction
A Song of Ice and Fire: A Dance with Dragons - George R.R. Martin
Reread.
A Knight of the Seven Kingdoms - Gearge R.R. Martin
The Skin Collector - Jeffery Deaver
Best Served Cold - Joe...
Home on Erik...
Language pitch
Here's a fun analysis that I did of the pitch (aka. frequency) of various languages. Certain...
over a year ago
Here's a fun analysis that I did of the pitch (aka. frequency) of various languages. Certain languages are simply pronounced with lower or higher pitch. Whether this is a feature of the language or more a cultural thing is a good question, but there are some substantial...
Simply Explained
Monitoring my 3D printer with a Pi Zero, Home Assistant and TinyCore Linux
Many devices in my home have become "smart" over the last couple of months, with one big exception:...
over a year ago
Many devices in my home have become "smart" over the last couple of months, with one big exception: my trusty 3D printer. It's a super reliable Prusa i3 MK3, but it lacks an internet connection.So I decided to use a Pi Zero to keep track of my 3D prints and send the progress to...
Abort Retry Fail
Housekeeping for 20240102
Some stats, updates, and whatnot
a year ago
Some stats, updates, and whatnot
Old Vintage...
Programming the Convergent WorkSlate's spreadsheet microcassette future
In this particular future, we will all use handheld spreadsheets stored on microcassettes, talking...
4 months ago
In this particular future, we will all use handheld spreadsheets stored on microcassettes, talking to each other via speakerphone, and probably listening to Devo and New Order a lot. (Though that part isn't too different from my actual present.)
a computer whose manufacturer...
Vitalik Buterin's...
In Defense of Bitcoin Maximalism
over a year ago
Jonas Hietala
Grand Thief Arto
Here’s me and Li’s game for our school course. The game isn’t tweaked too much but it’s a game with...
over a year ago
Here’s me and Li’s game for our school course. The game isn’t tweaked too much but it’s a game with some fairly cool ideas.
Grand Thief Arto
Instructions
Your goal is to collect loot until you can escape through the entry point when you’ve collected enough to complete the...
Electronics etc…
The HP 423A and a Beginner’s Deep Dive into RF Crystal Detectors
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [...
a year ago
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Louwrentius
Scanning many hosts in parallel with Nmap using PPSS
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output...
over a year ago
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output is written to a file or disk. Only when Nmap is finished,
is all output written to the output file. Often, I want to start processing
results of hosts that have already been...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 5: The Purge
2 months ago
Abort Retry Fail
The History of Lotus
The Hardest Working Software in the World
a year ago
The Hardest Working Software in the World
Notes on software...
A database without dynamic memory allocation
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Jonas Hietala
Food vacation in Japan
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of...
over a year ago
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of pictures, but I ended up sending a bunch back home as a ways of keeping my family up to date. When I look back most of them are about food… So I’ll turn this into a post about the...
Home on Erik...
ML at Twitter
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is...
over a year ago
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is pretty interesting. Everything is a Pig workflow and then they do everything as UDF's.
This approach seems pretty interesting.
Computer Ads from...
Dipco's Easy Reader
"Sight for Sore Eyes"
2 months ago
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
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...
Louwrentius
Monitor power usage with your UPS
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how...
over a year ago
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how much power it consumes. For this purpose, I wrote a
small script:
Host:~# ./ups.sh
UPS model: Back-UPS RS 1200 LCD
APC model: Back-UPS RS 1200 LC
Capacity: 720 Watt
Load: 18...
Posts on Made of...
What MongoDB got Right
MongoDB is perhaps the most-widely-mocked piece of software out there right now.
While some of the...
over a year ago
MongoDB is perhaps the most-widely-mocked piece of software out there right now.
While some of the mockery is out-of-date or rooted in misunderstandings, much of it is well-deserved, and it’s difficult to disagree that much of MongoDB’s engineering is incredibly simplistic,...
Posts on Made of...
Confessions of a programmer: I hate code review
Most of the projects I've been working on today have fairly strict code review policies. My work...
over a year ago
Most of the projects I've been working on today have fairly strict code review policies. My work requires code review on most of our code, and as we bring on an army of interns for the summer, I've been responsible for reviewing lots of code. Additionally, about five months ago...
Home on Erik...
hdfs2cass
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra...
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.
Notes on software...
How do databases execute expressions?
Databases are fun. They sit at the confluence of Computer
Science topics that might otherwise not...
a year ago
Databases are fun. They sit at the confluence of Computer
Science topics that might otherwise not seem practical in life as a
developer. For example, every database with a query language is also a
programming language implementation of some caliber. That doesn't
include all...
Notes on software...
Studying foreign languages with inbox zero
The only time I've been able to seriously, rapidly improve my ability
to speak a foreign language...
over a year ago
The only time I've been able to seriously, rapidly improve my ability
to speak a foreign language was through intensive language courses in
college. I was forced to actively speak, read, and write Chinese for
6-8 hours a week (1-2 hours every day). Then study another 5-10 hours
a...
./techtipsy
Accidentally turning the ASRock DeskMini X300 into a semi-passively cooled PC
After playing around with fan curves on my ASRock DeskMini X300
based home server, I noticed one...
over a year ago
After playing around with fan curves on my ASRock DeskMini X300
based home server, I noticed one interesting thing. At least it was
interesting to me.
Background
I had one goal: to try to see if I could turn it into a semi-passive PC by only
turning the fan on when the PC was...
Posts on Made of...
Conkeror
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension,...
over a year ago
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension, but nowadays it’s a standalone app built on top of Mozilla’s xulrunner, so it uses the Gecko rendering engine.
What it is, is an emacs implemented in Javascript, for the web. This...
Push to Prod
Best Questions and Answers to the “Terrifying Netflix Concurrency Bug” Post
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so...
a month ago
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so complicated? Plus many others.
Louwrentius
Fully unattended deployment of Windows clients using limited resources
Introduction
Anyone who ever installed Windows on a computer by hand must have wished for a solution...
over a year ago
Introduction
Anyone who ever installed Windows on a computer by hand must have wished for a solution that automate this task. It's just waiting a lot and pressing a button now and then. But installing the operating system itself is only the beginning. Once installed, you need to...
./techtipsy
TOMO M4: probably the coolest power bank I've owned
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting...
a year ago
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting two, and here’s why.
This post is not sponsored.
Removable batteries
Let’s start with the feature that I appreciate the most: removable batteries!
The TOMO M4 accepts up to 4...
Jonas Hietala
I Made It!
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a...
over a year ago
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a Ludum Dare! Not an easy feat and yet there are tons of games that look absolutely wonderful. I’m not there yet but now I have at least gotten back into game making again, long...
./techtipsy
My cat water fountain comes with a spicy USB power adapter
It turns out that you can’t trust any USB type A power adapter to be within spec.
I have a Catit...
a year ago
It turns out that you can’t trust any USB type A power adapter to be within spec.
I have a Catit Flower Fountain
for my two adorable cats. The idea of a water fountain for cats may sound odd,
but having one really helps with cats staying hydrated and that alone avoids all
sorts...
Applied Cartography
Why can't you just...?
Buried in a snarky thread about why Google Calendar doesn’t support calendar syncing is a long,...
7 months ago
Buried in a snarky thread about why Google Calendar doesn’t support calendar syncing is a long, detailed explanation of why shipping this sort of thing is hard:
Designing a consent experience for the enterprise admin and enterprise end user
Creating a special "read only" object...
Willem's Blog
Rescuing photos from a crashed iMac
This week I attempted to recover two decades of personal photo history from a crashed iMac.
over a year ago
This week I attempted to recover two decades of personal photo history from a crashed iMac.
lcamtuf’s thing
The secret lives of snowblowers
Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than...
4 months ago
Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than it seems.
Bryan Braun - Blog
One Million Checkboxes and the fear of viral success
When Nolen Royalty’s One Million Checkboxes site went viral, several people sent me links to it.
If...
4 months ago
When Nolen Royalty’s One Million Checkboxes site went viral, several people sent me links to it.
If you haven't heard of One Million Checkboxes, see the Wikipedia article for more details.
I loved everything about One Million Checkboxes. It was simple but strangely compelling....
Arduino Blog
Circuit Canvas can help you quickly create illustrated wiring diagrams
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit...
5 months ago
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit designs, but traditional schematics and technical drawings are difficult for non-professionals to interpret and create. Makers can benefit from intuitive illustrations that look good...
Louwrentius
HighPoint RocketRAID and staggered spinup with Samsung F1
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using...
over a year ago
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using 'staggered spinup' in combination with Samsung Spinpoint F1, 1
(one) terrabyte disks.
The problem is that the F1 disks spinup very slowly and often seem to 'hang'
while making ticking...
On Life and Lisp
Hilariously Fast Volume Computation with the Divergence Theorem
(No, there won’t be jokes.)
The following presents a fast algorithm for volume computation of a...
over a year ago
(No, there won’t be jokes.)
The following presents a fast algorithm for volume computation of a simple, closed, triangulated 3D mesh. This assumption is a consequence of the divergence theorem. Further extensions may generalise to other meshes as well, although that is presently...
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
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...
Louwrentius
Firewire: the forgotten security risk
The battle between Firewire and USB has been won by USB, but Firewire is still
arround. It is not...
over a year ago
The battle between Firewire and USB has been won by USB, but Firewire is still
arround. It is not that prevalent, cheap computers lack Firewire, but they often
have a PCMCIA slot.
The thing is this: Firewire allows direct access to all RAM of your computer.
An attacker...
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
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...
Willem's Blog
Supernova E3 Pro 2 dynamo powered headlight
over a year ago
Construction Physics
How China Is Like the 19th Century U.S.
I spend a lot of time reading about manufacturing and its evolution, which means I end up repeatedly...
2 months ago
I spend a lot of time reading about manufacturing and its evolution, which means I end up repeatedly reading about the times and places where radical changes in manufacturing were taking place: Britain in the late 18th century, the US in the late 19th and early 20th centuries,...
Arduino Blog
Track the location history of your devices in Arduino Cloud IoT dashboards
Asset tracking has become increasingly crucial across various industries and applications. Whether...
7 months ago
Asset tracking has become increasingly crucial across various industries and applications. Whether you’re a logistics company monitoring your fleet, a conservation organization tracking wildlife, or an individual passionate about outdoor adventures, the ability to track and...
Arduino Blog
Making a car more secure with the Arduino Nicla Vision
Shortly after attending a recent tinyML workshop in Sao Paolo, Brazil, Joao Vitor Freitas da Costa...
5 months ago
Shortly after attending a recent tinyML workshop in Sao Paolo, Brazil, Joao Vitor Freitas da Costa was looking for a way to incorporate some of the technologies and techniques he learned into a useful project. Given that he lives in an area which experiences elevated levels of...
Willem's Blog
Hospitalised with MCADD
This week our son was hospitalised because a regular illness caused him to keep vomiting, a...
over a year ago
This week our son was hospitalised because a regular illness caused him to keep vomiting, a dangerous situation if you're diagnosed with MCADD.
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
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...
Miscellaneous unsolicited (and possibly biased) career advice
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of...
over a year ago
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of mistakes and luck so I thought I'd share some.
Honestly, I feel like I've mostly benefitted from luck.
Louwrentius
Improving web application security by implementing database security
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement...
over a year ago
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement defense-in-depth security in web applications. 99.9% of applications use a single database account, with root-like privileges. Easiest for the developer of course, and the database is just a...
Matt Blewitt
Thoughts on User Safety
We need to move beyond mere security and towards safety for our customers and our users. This is how...
over a year ago
We need to move beyond mere security and towards safety for our customers and our users. This is how we can do that.
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
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...
Notes on software...
Implementing MVCC and major SQL transaction isolation levels
In this post we'll build a database in 400 lines of code with basic
support for five standard SQL...
7 months ago
In this post we'll build a database in 400 lines of code with basic
support for five standard SQL transaction levels: Read Uncommitted,
Read Committed, Repeatable Read, Snapshot Isolation and
Serializable. We'll use multi-version concurrency control (MVCC) and
optimistic...
Louwrentius
Why you should not use IPsec for VPN connectivity
IPsec is a well-known and widely-used VPN solution. It seems that it's not widely known that Niels...
over a year ago
IPsec is a well-known and widely-used VPN solution. It seems that it's not widely known that Niels Ferguson and Bruce Schneier performed a detailed security analysis of IPsec and that the results were not very positive.
We strongly discourage the use of IPsec in its current form...
Electronics etc…
A Hardware Interposer to Fix the Symmetricom SyncServer S200 GPS Week Number Rollover Problem
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to...
4 months ago
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to GPS
The GPS Week Number Rollover Issue
Making the Furuno GT-8031 Work Again
How It Works
Build Instructions
Power Supply Recapping
The Future: A Software-Only Solution
The...
lcamtuf’s thing
The serious science of trolling LLMs
The internet's oldest pastime finally has a purpose -- and it's more serious than AI companies would...
5 months ago
The internet's oldest pastime finally has a purpose -- and it's more serious than AI companies would like to admit.
Christian Selig
Using PHPickerViewController Images in a Memory-Efficient Way
PHPickerViewController is (in my opinion) one of the more exciting parts of iOS 14. We developers...
over a year ago
PHPickerViewController is (in my opinion) one of the more exciting parts of iOS 14. We developers now have a fully-fledged photo picker that we can just use, rather than having to spend a bunch of our time creating our own (much like SFSafariViewController did for developers and...
Applied Cartography
Order, Tailwind, DRY
(Order in the CSS rule sense, not the metaphysical sense.)
The time has come to begin exfiltrating...
2 weeks ago
(Order in the CSS rule sense, not the metaphysical sense.)
The time has come to begin exfiltrating some higher-traffic, higher-leverage parts of Buttondown's admin UI away from the autogenerated Django admin and into some more bespoke components.
Take, for instance, this rather...
Home on Erik...
Top posts
These are some blog posts which have gotten a disproportionate amount of traffic (10,000+ page...
over a year ago
These are some blog posts which have gotten a disproportionate amount of traffic (10,000+ page views):
2024 It's hard to write code for computers, but it's even harder to write code for humans 2023 Simple sabotage for software 2022 We are still early with the cloud: why...
detreville
But why "detreville"?
(But why not?)
a year ago
Willem's Blog
Cash is king, or is it?
Is the time right to ditch the wallet?
over a year ago
Is the time right to ditch the wallet?
./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
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...
Vitalik Buterin's...
Where to use a blockchain in non-financial applications?
over a year ago
Computer Ads from...
MicroSpeed PC-TRAC
Let's Get Right To the Point
7 months ago
Let's Get Right To the Point
Willem's Blog
Off the grid: Working on 100% renewable energy
Learning from powering my personal devices using nothing but self generated electricity using a...
over a year ago
Learning from powering my personal devices using nothing but self generated electricity using a solar panel and power banks.
Vitalik Buterin's...
From prediction markets to info finance
a month ago
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
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.
Engineers Need Art
Move Fast and Abandon Things
For every shareware game I released in the 1990's, another four were partially written but put aside...
3 months ago
For every shareware game I released in the 1990's, another four were partially written but put aside and abandoned.
Willem's Blog
Wearing WHOOP 4.0
Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror...
over a year ago
Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror - it's so powerful, that I don't take mine off!
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
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
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
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...
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
Read along for a comprehensive list of advanced Google search operators that allow you to filter your search results.
Arduino Blog
Why is STEAM education important for kids? 6 activity tips
School’s out for summer – at least for most of us. While the majority of children (and teachers!)...
6 months ago
School’s out for summer – at least for most of us. While the majority of children (and teachers!) will probably be breathing a huge sigh of relief, parents face a new challenge: how to keep kids engaged during the long break. Of course, downtime is important, but there are also...
Home on Erik...
The relationship between commit size and commit message size
Wow I guess it was more than a year ago that I tweeted this. Crazy how time flies by. Anyway, here's...
over a year ago
Wow I guess it was more than a year ago that I tweeted this. Crazy how time flies by. Anyway, here's my rationale:
When I update one line of code I feel like I have to put in a long explanation about its side effects, why it's fully backwards compatible, and why it fixes some...
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
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...
Arduino Blog
This giant animatronic LEGO minifig zombie is a delight
LEGO’s minifigs are the perfect canvas for creativity, as their simple plastic forms provide enough...
5 months ago
LEGO’s minifigs are the perfect canvas for creativity, as their simple plastic forms provide enough constraint to force people to consider their art and design choices. That’s exactly the kind of pressure that Wicked Makers’ Jaimie and Jay thrive under, leading them to build this...
Notes on software...
Let's build a distributed Postgres proof of concept
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies...
over a year ago
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies that do a lot of work: a
PostgreSQL wire protocol
implementation, a storage
layer, a Raft implementation
for distributed consensus. And not
part of go.mod but still building on 3rd...
latest projects -...
Robot Slide Whistle Orchestrion
[Hardware] Army of Robot Slide Whistles
9 months ago
[Hardware] Army of Robot Slide Whistles
Willem's Blog
Wearing Grand Seiko
I am glad I took the opportunity to wear a Grand Seiko, learning first hand about its craftsmanship,...
over a year ago
I am glad I took the opportunity to wear a Grand Seiko, learning first hand about its craftsmanship, innovation and practicality.
Matt Blewitt
Death, and Utsuge
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and...
2 months ago
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and Japanese visual novels.
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
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...
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
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
Willem's Blog
Enter text without keys
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a...
over a year ago
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a mouse or keyboard!
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...
2 weeks ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Good Enough
TIL: Easily Support Gravatars in Rails
We’re building some software where we’d like to display avatars for email contacts
even if they...
10 months ago
We’re building some software where we’d like to display avatars for email contacts
even if they aren’t users of our software.
While Gravatar is a relic of Web 2.0,
we’ve found that there are still a significant number of people who have their
email addresses in that...
Arduino Blog
DIY ECU controls Honda Insight’s Kubota diesel engine
The Honda Insight was the first hybrid car released in North America and Honda put serious effort...
6 months ago
The Honda Insight was the first hybrid car released in North America and Honda put serious effort into making it as efficient as was practical at the time. That meant aerodynamic streamlining, which is why the first-generation Insight had very distinct covers over the rear...
./techtipsy
How I blew up my backup server (Valve pls fix)
It all started with me getting a Steam Deck.
Background
After getting familiar with the Steam Deck...
a year ago
It all started with me getting a Steam Deck.
Background
After getting familiar with the Steam Deck and how the Proton compatibility layer works, I decided to write a
backup script that would back up everything in the home folder, excluding the Steam games themselves due to the...
Willem's Blog
Something the smartwatch will never have: patina
Patina is often neglected when comparing smartwatches with regular watches.
over a year ago
Patina is often neglected when comparing smartwatches with regular watches.
./techtipsy
How I treat my urge to hoard data
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized...
over a year ago
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized that the pursuit to hoard all the things will just keep
on consuming more and more of my time and money. Storage is cheap up until to a
point, once you find yourself tracking hard...
Good Enough
Cosmic Maelstrom
As Barry wrote in his recent blogpost, we're busy building prototypes here at Good Enough.
It's...
a year ago
As Barry wrote in his recent blogpost, we're busy building prototypes here at Good Enough.
It's weird to be in this situation. Most of the Good Enough team are used to working on just one software at a time, focusing on steadily improving it. But right now we're doing the...
Jonas Hietala
Being Productive
School’s been going on now for… Is it a month and a half maybe? I don’t know really but it’s all...
over a year ago
School’s been going on now for… Is it a month and a half maybe? I don’t know really but it’s all going so fast, week after week is disappearing and I don’t know where they go but I know that I’m at least not wasting them like I did most of last year!
Last year I managed school...
Birchtree
I’m Not a Panda Person
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web...
2 weeks ago
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web apps.
Watch it on YouTube or listen in your favorite podcast app!
Louwrentius
Debian Lenny and Dell S300 H200 and H700 RAID controllers
update november 2010: it is reported in the comments that the next release
will support these...
over a year ago
update november 2010: it is reported in the comments that the next release
will support these controllers. However, which controllers are supported is
not clear. Also, we may have to wait for quite some time before squeeze will
be released.
Just a quick note: it seems that the...
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
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...
Old Vintage...
Virtualizing the 6502 on a 6502 with 6o6 (and The Incredible KIMplement goes 1.0)
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've...
8 months ago
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've intermittently worked on for literally two decades. Now that I've finally shaken out more bugs, tuned it up and cleaned it off, it's time to let people play with the source...
Simply Explained
Impact of Adblockers on Google Analytics (vs. Plausible)
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have...
over a year ago
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have one installed. Not only do they block advertisements, but also analytics scripts (like Google Analytics, Matomo, etc.)So that begs the question: what is the impact of these...
Home on Erik...
Fermat's principle
I was browsing around on the Internet and the physics geek in me started reading about Fermat's...
over a year ago
I was browsing around on the Internet and the physics geek in me started reading about Fermat's principle. And suddenly something came back to me that I've been trying to suppress for many years – how I never understood why there's anything fundamental about the principal of...
./techtipsy
DIY cloud gaming: NVIDIA and Moonlight
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming...
over a year ago
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming setup running. I have one powerful desktop PC, one virtual machine with a GPU attached
to it, and client machines that can be used to stream games from. To keep things simple (and...
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
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...
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
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...
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 6. LLVM system calls
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
3. LLVM
4. LLVM conditionals and compiling fibonacci
5. an x86 upgrade
In this post we'll extend the ulisp
compiler's LLVM backend to
support printing integers to...
Posts on Made of...
Computers can be understood
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially...
over a year ago
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially all of my work with software. I attempt to articulate this mindset, some of its implications and strengths, and some of the ways in which it’s lead me astray.
Software can be...
Applied Cartography
Bluesky is good
Three months ago, I wrote Bluesky et al, in which I walked through the various platforms vying for...
3 weeks ago
Three months ago, I wrote Bluesky et al, in which I walked through the various platforms vying for the dubious title of "Twitter's successor" and landed on Bluesky as being my favorite, perhaps less out of its ostensible inherent virtues and more out of the size of its...
Simply Explained
How I Built an NFC Movie Library for my Kids
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to...
a year ago
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to today, and my children's movie collection is vastly different. It's completely digital and dispersed across services. I wanted to recreate the tangible magic of my childhood for them.
Nabeel S. Qureshi
How To Understand Things
The smartest person I’ve ever known had a habit that, as a teenager, I found striking...
over a year ago
The smartest person I’ve ever known had a habit that, as a teenager, I found striking...
csvbase blog
Client libraries are better when they have no API
fsspec is secretly everywhere, and boss
8 months ago
fsspec is secretly everywhere, and boss
Posts on Made of...
Reader/reader blocking in reader/writer locks
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition...
over a year ago
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition queue, all future accesses block behind any in-flight reads. Thus, if any readers hold the lock for extended periods of time, this can lead to extreme pauses and loss of throughput...
Louwrentius
Cryptocurrencies are detrimental to society
Want to listen to this article?
audio element.
Introduction
How would you explain the inner...
over a year ago
Want to listen to this article?
audio element.
Introduction
How would you explain the inner workings of bitcoin to a person in simple, understandable terms?
source
This explanation seems perfect to me because it illustrates some seriously problematic aspects of...
Willem's Blog
I see dead people
This may be Apple Vision Pro's killer feature, enabling you to see dead people: augmenting old...
3 months ago
This may be Apple Vision Pro's killer feature, enabling you to see dead people: augmenting old photos into lifelike representations.
Louwrentius
Difference of behavior in SATA Solid State Drives
Introduction
Update: I've noticed some strange behavior of SSDs when benchmarking them with FIO....
over a year ago
Introduction
Update: I've noticed some strange behavior of SSDs when benchmarking them with FIO. After further investigation and additional testing, I've found the reason for the strange patterns in the graphs.
The 'strange' test results are due to the fact that they were...
Willem's Blog
Tablet as main computer
I have been using a tablet as my main computer for quite some time now. In this blog post I share...
over a year ago
I have been using a tablet as my main computer for quite some time now. In this blog post I share you my experience on using Surface Pro and iPad Pro to get my work done.
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 4. LLVM conditionals and compiling fibonacci
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
3. LLVM
5. LLVM system calls
6. an x86 upgrade
In this post we'll extend the
compiler's LLVM backend to
support compiling conditionals such that we can support...
Engineers Need Art
VPX Scripting - Part 6 (End Sound)
This post wraps up the sound work on Teacher's Pet.
8 months ago
This post wraps up the sound work on Teacher's Pet.
Louwrentius
Don't use cloud services if you care about secrecy of your data
When you use cloud services, you are storing your data on other people's hard drives.
The moment you...
over a year ago
When you use cloud services, you are storing your data on other people's hard drives.
The moment you put your data within a cloud service, that data is no longer under your control. You don't know who will access that data. Secrecy is lost.
Instead of using services like Gmail...
Willem's Blog
Moving to the countryside
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
over a year ago
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
Applied Cartography
Applied Cartography × Val Town
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If...
a month ago
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If you haven't used Val, well, watch the stream — think live, zero-deploy code snippets that can be arbitrarily extended and executed.)
Reflecting on the experience, the most exciting...
Notes on software...
Exploring Postgres's arena allocator by writing an HTTP server from scratch
This is an external post of mine. Click
here
if you are not redirected.
a month ago
This is an external post of mine. Click
here
if you are not redirected.
Louwrentius
The future of ZFS now that OpenSolaris is dead
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very...
over a year ago
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very popular and very advanced Zetabyte File System (ZFS)
The only open source platform that actively supports ZFS is FreeBSD. And they
just 'copied' the code from OpenSolaris. Are they...
Jonas Hietala
Done this, done that. What now?
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and...
over a year ago
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and starting some new courses in school. I’m liking my choice of Computer Science more and more. Data structures and Algorithms was a super fun course, I actually ordered a new book...
Posts on Made of...
Iron Blogger: Blogging for Beer
So, you may have noticed that I suddenly started updating this blog for the first time in a while....
over a year ago
So, you may have noticed that I suddenly started updating this blog for the first time in a while. The reason is that I’ve recently started an ongoing event with a whole bunch of friends around here to encourage us to blog more.
Like so many good ideas, it all started with a...
anderegg.ca
Halls of Torment: a thematically questionable downtime game
Merry Christmas and happy holidays! I hope everyone out there has a joyful and relaxing day, however...
a week ago
Merry Christmas and happy holidays! I hope everyone out there has a joyful and relaxing day, however you celebrate. During the downtime I got to play a game I’d been wanting to try for a while.
Last summer on The Besties podcast, Russ Frushtick mentioned that he was enjoying...
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
Home on Erik...
More Luigi alternatives
The workflow engine battle has intensified with some more interesting entries lately! Here are a...
over a year ago
The workflow engine battle has intensified with some more interesting entries lately! Here are a couple I encountered in the last few days. I love that at least two of them are direct references to Luigi!
Arduino Blog
Make your scary Halloween pumpkin smart with the Plug and Make Kit!
With Halloween just around the corner, we’ve got the perfect project to make your decorations more...
2 months ago
With Halloween just around the corner, we’ve got the perfect project to make your decorations more fun and interactive. All you have to do is take the Arduino UNO R4 WiFi and Modulino nodes included in your Plug and Make Kit to create an awesome jack-o’-lantern that will light up...
Louwrentius
Why I Do Use ZFS as a File System for My NAS
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system...
over a year ago
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system for my 18 TB NAS.
You have to understand that at the time, I believe the arguments in the article were relevant, but much has changed since then, and I do believe this article is...
Willem's Blog
Enjoy a festival without alcohol
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during...
over a year ago
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during the music festival.
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
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...
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.
10 months ago
A behind-the-scenes look at the development of the Apple IIe and IIc.
Opsbros
Saibah Securitah
It's always okay to buy the domain for the meme!
over a year ago
It's always okay to buy the domain for the meme!
Arduino Blog
This miniature monorail stays upright with the help of gyro stabilization
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is...
4 months ago
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is actually a very wide beam. The car’s load tires (often literal truck or trailer tires) roll on top of that beam and guide tires clamp the sides of the beam, preventing the car from...
watchTowr Labs
Where There’s Smoke, There’s Fire - Mitel MiCollab CVE-2024-35286, CVE-2024-41713 And An 0day
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't...
4 weeks ago
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't overstate the consequences of an attacker crossing the boundary from the 'computer system' to the 'telephone system'. We've seen attackers realise this in 2024,
Home on Erik...
I already found the best gifs
Just search for “hackers gif“.
There you go. Fun for your work emails for the next 500 years. From...
over a year ago
Just search for “hackers gif“.
There you go. Fun for your work emails for the next 500 years. From the awesome movie Hackers. That movie together with The Warriors convinced me that I wanted to live in NYC when I was like… 14 years old.
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
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...
Opsbros
Debug Header
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor...
over a year ago
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor driver connected to a Raspberry Pi, I thought a breakout header might help; so I whipped up this little board.
Neil Madden
Why the OAuth mTLS spec is more interesting than you might think
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the...
over a year ago
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the episode with Colm MacCárthaigh about a bunch of topics around TLS. It’s a great episode that touches a lot of subjects I’m interested in, so go ahead and listen to it if you...
Push to Prod
Making an AB Test Allocator 20x Faster Using Non-blocking IO
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it...
2 months ago
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it effectively.
Jonas Hietala
2021 in review
A new year is always a good time to review the past year. Funny how this is already the 12th year...
over a year ago
A new year is always a good time to review the past year. Funny how this is already the 12th year I’ve done this kind of quick review… Time sure flies.
2021 Non-Geek Achievements
Started strength training using a strength coach from Kabuki.
I got inspired by the book Peak that...
Vitalik Buterin's...
Multidimensional gas pricing
7 months ago
Engineers Need Art
Op-Amp Helper PCB
A PCB for breadboards to make working with op-amps easier.
a year ago
A PCB for breadboards to make working with op-amps easier.
Ken Shirriff's blog
Inside the Intel 386 processor die: the clock circuit
Processors are driven by a clock, which controls the timing of each step inside the chip.
In this...
a year ago
Processors are driven by a clock, which controls the timing of each step inside the chip.
In this blog post, I'll examine the clock-generation circuitry inside the Intel 386 processor.
Earlier processors such as the 8086 (1978) were simpler, using two clock phases internally.
The...
Louwrentius
FreeBSD 10.1 unattended install over PXE & HTTP (no NFS)
To gain some more experience with FreeBSD, I decided to make a PXE-based unattended installation of...
over a year ago
To gain some more experience with FreeBSD, I decided to make a PXE-based unattended installation of FreeBSD 10.1.
My goal is to set something up similar to Debian/Ubuntu + preseeding or Redhat/CentOS + kickstart.
Getting a PXE-based unattended installation of FreeBSD 10.1 was...
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
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...
Gwern.net Newsletter
July 2020 gwern.net newsletter
Links on the Uighurs, authoritarianism, negative emissions, AI overhang; 1 movie & 2 anime reviews
over a year ago
Links on the Uighurs, authoritarianism, negative emissions, AI overhang; 1 movie & 2 anime reviews
Jonas Hietala
November Theme: Art Game
Back over at The Experimental Gameplay Project a new theme has come up. My last three themes haven’t...
over a year ago
Back over at The Experimental Gameplay Project a new theme has come up. My last three themes haven’t been “my” themes: I’ve been following their lead and their themes and this month is no exception. This months’ apparently a big theme - Art. It’s even a collaboration with a big...
Arduino Blog
This Halo helmet features an adjustable-transparency RGB-backlit visor
The Halo franchise is full of iconic designs, from vehicles like the Warthog to weapons like the...
a month ago
The Halo franchise is full of iconic designs, from vehicles like the Warthog to weapons like the Needler. But the armor, such as the Spartan armor worn by Master Chief, is arguably the most recognizable. The helmets are especially cool, and LeMaster Tech put his own unique spin...
Engineers Need Art
Apple Interview (1995)
Recalling my somewhat unusual interview with Apple back in 1995.
over a year ago
Recalling my somewhat unusual interview with Apple back in 1995.
Notes on software...
Starting a minimal Common Lisp project
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like...
over a year ago
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like what you'd expect. While
functional programming is all the rage in Scheme, Common Lisp was
"expressly designed to be a real-world engineering language rather
than a theoretically...
seangoedecke.com RSS...
What kind of work I want
This article is to help recruiters, hiring managers and myself have a better idea of the kind of...
over a year ago
This article is to help recruiters, hiring managers and myself have a better idea of the kind of places I’d like to work. The short version…
Simply Explained
Retrospective: 4 years on YouTube
Every year I sit down and take a look at how my YouTube channel has been doing. I reflect, evaluate,...
over a year ago
Every year I sit down and take a look at how my YouTube channel has been doing. I reflect, evaluate, and set goals for the coming year. This year is no exception. January 13th, 2020, marks my fourth year on YouTube. Time to do a little retrospective.
Notes on software...
Metaprogramming in Zig and parsing CSS
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it....
a year ago
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it. What's the difference between
@typeInfo and @TypeOf? I ignored this aspect of Zig until a
problem came up at work where reflection
made sense.
The situation was parsing and storing...
Jonas Hietala
Ludum Dare 20 Timelapse
So this time I managed to compose a timelapse of my weekend and the making of My Minions. Sadly I...
over a year ago
So this time I managed to compose a timelapse of my weekend and the making of My Minions. Sadly I lost the first few hours as I forgot to turn it on…
Anyway here’s the result:
https://www.youtube.com/watch?v=ABVPlRaA5iI
Louwrentius
Google DNS - what to think of it?
Google now provide an open DNS service. At first I was scared that they use
their service to get...
over a year ago
Google now provide an open DNS service. At first I was scared that they use
their service to get information about users.
However, their privacy statement tells us that no personal identifiable
information is stored for longer than 48 hours. The permanent logs do not
contain such...
Style over Substance
How to build your own Goodman ZONE camera, part 2
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her...
over a year ago
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her range of open-source camera models, using the existing Mamiya Press lens series for glass and the Mamiya RB67 backs to hold film. She sells pre-printed kits that contain all the...
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
Notes on software...
Responsibility and ownership
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn...
over a year ago
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn over ownership, don't expect folks to
take responsibility. When you grant ownership and set expectations,
you'll be astounded what folks will accomplish without you.
I am astounded.
Jonas Hietala
Undo git reset --hard
I purposefully and more or less idiotically executed git reset --hard <hash> in hopes of going back...
over a year ago
I purposefully and more or less idiotically executed git reset --hard <hash> in hopes of going back a bit. What I didn’t realize then is that you throw away all the commits between now until <hash>. Not quite what was planned.
After a bit of panic I found the answer:
Find your...
computers are bad
2024-08-31 ipmi
I am making steady progress towards moving the Computers Are Bad enterprise
cloud to its new home,...
4 months ago
I am making steady progress towards moving the Computers Are Bad enterprise
cloud to its new home, here in New Mexico. One of the steps in this process is,
of course, purchasing a new server... the current Big Iron is getting rather
old (probably about a decade!) and here in...
Matt Mullenweg
WPAI
Very excited to share that we’ve acquired WPAI and the team is joining Automattic. They have some...
3 weeks 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.
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
10 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Jonas Hietala
A Christmas Game
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly...
over a year ago
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly one thing on my wishlist for this christmas for my little brother: Ticket to Ride: Nordic Countries. Guess what? I got something from my wishlist!
This was our 5th or 6th game (or...
Matt Blewitt
Sensibly Default
There are two programming principles that I hold dear to my heart: the principle of least surprise...
2 months ago
There are two programming principles that I hold dear to my heart: the principle of least surprise and provide sensible defaults. I’ve recently been working within the GraphQL ecosystem, and the number of violations of both here has frustrated me. This will be a little bit ranty.
Louwrentius
Lion's FileVault does not support Bootcamp and external boot disks
Read the comments as they may provide useful information for your particular situation
I boot my...
over a year ago
Read the comments as they may provide useful information for your particular situation
I boot my iMac from an external FW800 SSD. I found out that it is impossible to
encrypt this disk using the new FileVault as part of Lion.
Furthermore, I also found out that if you have a disk...
Arduino Blog
Why do OTA updates matter in IoT?
Imagine you’ve just installed your state-of-the-art lighting control system, perfectly hidden in a...
6 months ago
Imagine you’ve just installed your state-of-the-art lighting control system, perfectly hidden in a box inside a wall, and everything seems to be working like a charm. But then, you spot a bug in the firmware. The thought of pulling the hardware back out sends shivers down your...
Applied Cartography
Migrating to Django 5
The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was...
2 months ago
The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was incentivized to do so because our search right now is quite slow, and the lowest hanging piece of fruit is to move some of the tsvector generation out of band, and I'd rather do that using...
Arduino Blog
Check out these Arduino-powered research projects from CHI 2024
Held in Hawaii this year, the Association of Computing Machinery (ACM) hosted its annual conference...
7 months ago
Held in Hawaii this year, the Association of Computing Machinery (ACM) hosted its annual conference on Human Factors in Computing Systems (CHI) that focuses on the latest developments in human-computer interaction. Students from universities all across the world attended the...
Ian's Blog
Hardware-Accelerated Video Encoding with Intel Arc on Redhat Linux
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but...
2 months ago
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but ask anybody who's used a Linux machine and they'll tell you of the horrors of Nvidia or AMD drivers.
Intel, on the other hand, seems to be taking things in a much different, much...
Jonas Hietala
Soda
These quotes are from hacker news and I found them all too funny.
It’s hard for me to understand the...
over a year ago
These quotes are from hacker news and I found them all too funny.
It’s hard for me to understand the whole soda phenomenon in Canada and the US. Is it as addictive as cigarettes? Does it make you crave for more? Or it simply tastes so good that you can’t get enough of it? Why not...
Louwrentius
'Tip of the day: Scrolling in GNU screen'
Just the answer:
By default, on Debian, the scroll back buffer is about 1K lines. This can...
over a year ago
Just the answer:
By default, on Debian, the scroll back buffer is about 1K lines. This can be
changed in the .screenrc file in your home directory. The following example
sets the scroll back buffer to 5K lines.
defscrollback 5000
Set the scroll back buffer on the fly with:
First...
Louwrentius
This blog is now running on solar power
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which...
over a year ago
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which is connected to a solar charge controller. This device charges an old worn-out car battery and provides power to a Raspberry Pi ~~3b+~~ 4B, which in turn powers this (static)...
Nabeel S. Qureshi
Films + Books, Q1 2023
What I watched and read
a year ago
Applied Cartography
The taste of beer
Unlike stories, real life, when it has passed, inclines toward obscurity, not clarity.
There’s a...
7 months ago
Unlike stories, real life, when it has passed, inclines toward obscurity, not clarity.
There’s a relatively famous line from Bezos, circulated first at YC in ’08 and then more recently by the folks at Acquired (a great pod!):
Jeff uses this analogy for AWS. He talks about...
Home on Erik...
Slides from NYC Machine Learning talk
Slides from the talk. Slightly edited because (a) some of the slides make little sense taken out of...
over a year ago
Slides from the talk. Slightly edited because (a) some of the slides make little sense taken out of context (b) Slideshare seem to have problem converting some of the stuff.
Collaborative filtering at Spotify from Erik Bernhardsson
./techtipsy
I have a 'Dall UD19PB ThundeRbglt Dock': my experience with the HP Elitebook 845 G9
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and...
over a year ago
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and also out of morbid curiosity.
It’s the HP Elitebook 845 G9, and it has pretty good specifications:
CPU: AMD Ryzen 7 6800U
RAM: 2x16GB DDR5
Storage: 512GB KIOXIA NVMe SSD...
Neil Madden
Digital signatures and how to avoid them
Wikipedia’s definition of a digital signature is: A digital signature is a mathematical scheme for...
3 months ago
Wikipedia’s definition of a digital signature is: A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the...
Christian Selig
Announcing Juno 2.0
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been...
6 months ago
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been enjoying Juno since its launch, as well as providing awesome feedback and input to improve it.
Today I’m releasing Juno 2.0, which incorporates a ton of that community feedback,...
Computer Ads from...
Suture Software's Bludgeons 'n' Braggarts
We very simply give you what you've been asking for -- we give you BLOOD
10 months ago
We very simply give you what you've been asking for -- we give you BLOOD
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
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...
Jonas Hietala
Motivation is Valuable
It’s funny how motivation can play such a huge role with my productivity. I’m currently having two...
over a year ago
It’s funny how motivation can play such a huge role with my productivity. I’m currently having two math courses; one mandatory about analysis in multiple variables and vector analysis and one voluntary about advanced linear algebra. I don’t like the analysis course, didn’t like...
Notes on software...
Writing a minimal Lua implementation with a virtual machine from scratch in Rust
By the end of this guide we'll have a minimal, working implementation
of a small part of Lua from...
over a year ago
By the end of this guide we'll have a minimal, working implementation
of a small part of Lua from scratch. It will be able to run the
following program (among others):
function fib(n)
if n < 2 then
return n;
end
local n1 = fib(n-1);
local n2 = fib(n-2);
...
Jonas Hietala
Doing some online Personality tests
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own...
over a year ago
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own curiosity.
The Braverman Test
Inspired by Charles Poliquin’s visit on The Tim Ferriss Show I tried out the Braverman test to determine my neurotransmitter type. The point Charles...
On Life and Lisp
OpenGL 3.1 on Asahi Linux
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost:...
a year ago
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost: leapfrogging from OpenGL 2.1 over OpenGL 3.0 up to OpenGL 3.1! Similarly, the OpenGL ES 2.0 support is bumping up to OpenGL ES 3.0. That means more playable games and more functioning...
Arduino Blog
Ready for SPS Italia 2024? Ready for accessible industrial automation!
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our...
7 months ago
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our open-source solutions are revolutionizing the industrial sector with high performance and accessibility. At Arduino’s booth #C020, hall 7, we’ll be presenting the latest additions to...
Home on Erik...
The eigenvector of "Why we moved from language X to language Y"
I was reading yet another blog post titled “Why our team moved from <language X> to <language Y>” (I...
over a year ago
I was reading yet another blog post titled “Why our team moved from <language X> to <language Y>” (I forgot which one) and I started wondering if you can generalize it a bit. Is it possible to generate a N * N contingency table of moving from language X to language Y?
Engineers Need Art
Same Stop
Marvelling at the full circle life seems to have taken after retirement.
a year ago
Marvelling at the full circle life seems to have taken after retirement.
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
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...
Applied Cartography
Notes from May
Lots of writing this month:
Why you should use Rails
A reminder that things take time
How...
7 months ago
Lots of writing this month:
Why you should use Rails
A reminder that things take time
How shadcn/ui's previews work
Why I hate that 1.01% meme
A lovely term, 'grace note'
Au revoir, invoke!
A quick check-in on 11ty
A rant/snippet for auth.js
The first edition of what will be a...
Louwrentius
Additional proof that Apple is ditching the optical drive
I'm a strong advocate of killing the optical drive. As of 2011, there is no need for it anymore....
over a year ago
I'm a strong advocate of killing the optical drive. As of 2011, there is no need for it anymore. Laptops could get lighter, smaller or have more room for additional battery capacity if the optical drive would no longer be present.
In my life, I never see people use the optical...
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
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...
Vitalik Buterin's...
La Guía Incompleta de los Rollups
over a year ago
Louwrentius
How traffic shaping can dramatically improve internet responsiveness
At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are...
over a year ago
At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are a mid-size company, bandwidth is clearly a severe constraint. But it was not our biggest problem. Even simple web-browsing was very slow.
As I was setting up a monitoring...
Yazin Alirhayim
The Trouble With Optionality
Optionality’s one of those things you don’t really think about. People don’t generally wake up one...
over a year ago
Optionality’s one of those things you don’t really think about. People don’t generally wake up one morning thinking “Why, it appears I’ve spent the past several decades of my life optimizing for optionality. Perhaps I should figure out why?”.
Most don’t even recognize the term –...
Posts on Made of...
Lightweight Linux Kernel Development with KVM
I don’t do a ton of Linux kernel development these days, but I’ve done a fair bit in the past, and...
over a year ago
I don’t do a ton of Linux kernel development these days, but I’ve done a fair bit in the past, and picked up a number of useful techniques for doing kernel development in a relatively painless fashion. This blog post is a writeup of the tools and techniques I use when developing...
Louwrentius
24 TB based on Norco RPC-4020 and Linux Software RAID
Just a quick link:
Some person build basically the same setup, including identical...
over a year ago
Just a quick link:
Some person build basically the same setup, including identical controller,
providing 28 TB of storage: Take a look here
The main difference is that this person uses 1.5 TB disk, thus achieving more
storage.
computers are bad
2024-01-16 the tacnet tracker
Previously on Deep Space Nine, I wrote that "the mid-2000s were an unsettled
time in mobile...
11 months ago
Previously on Deep Space Nine, I wrote that "the mid-2000s were an unsettled
time in mobile computing."
Today, I want to share a little example. Over the last few weeks, for various
personal reasons, I have been doing a lot of reading about embedded operating
systems and ISAs for...
Arduino Blog
How to customize your Arduino Cloud IoT dashboards on the go
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage...
2 months ago
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage their IoT projects with ease. From tracking sensor data to automating smart devices, the cloud enables seamless connectivity. Complementing this, the Arduino IoT Remote mobile app...
csvbase blog
How does it know I want csv? — An HTTP trick
Forgotten parts of RFC2616
a year ago
Forgotten parts of RFC2616
Arduino Blog
Meet the CapibaraZero, a multifunctional security and hacking tool based on the Nano ESP32
In recent years, tools such as the FlipperZero have become quite popular amongst hobbyists and...
a month ago
In recent years, tools such as the FlipperZero have become quite popular amongst hobbyists and security professionals alike for their small size and wide array of hacking tools. Inspired by the functionality of the FlipperZero, Project Hub user ‘andreockx’ created a similar...
Jonas Hietala
Robot Project Start
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot....
over a year ago
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot. We’re gonna do battle with infrared lasers instead of axes but it might be fun anyway. Luckily for me I’m responsible for software and nothing harder than that! w00p!
We could...
Louwrentius
Setup a VPN on your iPhone with OpenVPN and Linux
⚠️ 🚨 Update 2024 🚨⚠️
I'm not using OpenVPN anymore for my VPN needs and this article is considered...
over a year ago
⚠️ 🚨 Update 2024 🚨⚠️
I'm not using OpenVPN anymore for my VPN needs and this article is considered unmaintained.
It's stronly recommended not to use this tutorial and find up-to-date documentation.
I also have no plans to update this blogpost in the future.
[Update 2018]
This...
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
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...
Willem's Blog
Outside the comfort zone: amateur acting
This month I strapped myself with sensors during a little experiment outside my comfort zone: I...
over a year ago
This month I strapped myself with sensors during a little experiment outside my comfort zone: I debuted as amateur actor!
Gwern.net Newsletter
October 2020 news
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization &...
over a year ago
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization & improvement.
Avestura's Blog
How optimistic or pessimistic are the Kurzgesagt videos?
A sentiment analysis on the last 20 videos of Kurzgesagt.
a year ago
A sentiment analysis on the last 20 videos of Kurzgesagt.
Arduino Blog
This Strandbeest-style coffee table can deliver drinks
More than 30 years ago, Dutch artist Theo Jansen began astounding the world with his Strandbeesten...
3 months ago
More than 30 years ago, Dutch artist Theo Jansen began astounding the world with his Strandbeesten walking sculptures. Even after decades, they have an almost mythical allure thanks to the incredibly fluid way in which they walk. They’re clearly constructs, but with gaits that...
Style over Substance
DIY: Use an IKEA VINDRIKTNING air quality sensor in Home Assistant with ESPHome
IKEA has released some interesting new products lately, focused on air quality. In this product...
over a year ago
IKEA has released some interesting new products lately, focused on air quality. In this product line, one unit that stands out is the VINDRIKTNING air quality sensor. This cheap (just €9,99) sensor measures the air quality in your home, using a simple traffic light scheme to...
Jonas Hietala
CS:GO AWP Nerf
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I...
over a year ago
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I ever make a game and I want someone to balance it and I had the money, I would hire Thorin.
Vitalik Buterin's...
What even is an institution?
over a year ago
Notes on software...
Deploying FreeBSD on Linode unattended in minutes
I became a FreeBSD user over 2 years ago when I wanted to see what all
the fuss was about. I swapped...
over a year ago
I became a FreeBSD user over 2 years ago when I wanted to see what all
the fuss was about. I swapped my y410p dual-booting Windows / Ubuntu
with FreeBSD running Gnome 3. I learned a lot during the transition
and came to appreciate FreeBSD as a user. I soon began running...
./techtipsy
OpenWRT, ISP modem and dynamic IP addresses: how to fix connectivity issues without rebooting your...
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem...
7 months ago
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem (Technicolor CGA2121, DOCSIS 3.0). It’s running in bridge
mode,
meaning that all it does is convert the signal running over the coax cable
into plain old Ethernet.
My main...
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
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...
Arduino Blog
This DIY guitar transmitter sends digital audio to the amp
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer....
5 months ago
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer. But that cable can become tangled or get in the way, which is a problem for some of the more animated musicians out there. Wireless transmitters exist for them to express themselves...
Style over Substance
Leitz Summicron 50mm f/2 rigid (type 2) lens
My newest lens acquisition wasn’t actually originally on my wishlist. I already had a 50mm Summicron...
over a year ago
My newest lens acquisition wasn’t actually originally on my wishlist. I already had a 50mm Summicron lens, though that was the first generation collapsible model known as a Type 1. This lens has lived on my Leica M3 permanently for the past few years, and I have enjoyed the hell...
Lars Lofgren
The Sleazy World of Reddit Marketing, Everything is Fake
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of...
4 months ago
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of dollars per month for doing nothing. Maybe tens of thousands. With a 100% real example. I’ve edited nothing. When you’re a Reddit mod, you have a TON of power in that subreddit. You...
Home on Erik...
σ-driven project management: when is the optimal time to give up?
Hi! It's your friendly project management theorician. You might remember me from blog posts such as...
over a year ago
Hi! It's your friendly project management theorician. You might remember me from blog posts such as Why software projects take longer than you think, which is a blog post I wrote a long time ago positing that software projects completion time follow a log-normal distribution.
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 