Home on Erik...
Being data driven
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long...
over a year ago
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long interview with U.S. General Stanley McChrystal and I thought it was pretty interesting how striking some of the similarities are between fighting in a war and developing software.
Abort Retry Fail
The History of Slackware
The Oldest Surviving Linux Distribution
a year ago
The Oldest Surviving Linux Distribution
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...
3 weeks 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...
Jonas Hietala
Recent experiences with Netrunner tournaments
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three...
over a year ago
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three tournaments during February - March. After each of these tournaments I started a writeup of them but they fell off my mind a bit but consider this my break with my blogging...
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features.
I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Home on Erik...
Interview with a Data Scientist: Erik Bernhardsson
I was featured in Peadar Coyle's interview series interviewing various “data scientists” – which is...
over a year ago
I was featured in Peadar Coyle's interview series interviewing various “data scientists” – which is kind of arguable since (a) all the other ppl in that series are much cooler than me (b) I'm not really a data scientist.
latest projects -...
Fluid Simulation Pendant
[Hardware] Wearable real-time FLIP device
a week ago
[Hardware] Wearable real-time FLIP device
Jonas Hietala
We can build things!
Finally we have some sort of progress!
We can now build rooms and place and remove objects!
Yay!!...
over a year ago
Finally we have some sort of progress!
We can now build rooms and place and remove objects!
Yay!! But we still haven’t even begun with the game logic, resource management, the actual mining mechanic, multiple levels, actual tasks for our workers. But it’s something.
Posts on Made of...
A Brief Introduction to termios: Signaling and Job Control
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read...
over a year ago
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 or part 2 if you’re new here)
For my final entry on termios, I will be looking at job control in the shell (i.e. backgrounding and foreground jobs) and the very closely related...
Birchtree
Comfort Zone predicts tech in 2025
In this very special episode, the gang makes their "Pro" and "Pro Max" predictions for tech in 2025...
5 days ago
In this very special episode, the gang makes their "Pro" and "Pro Max" predictions for tech in 2025 and oh my, does it get wild! Who's best clued into the tech coming this year? Who is just wish-casting their way to third place? This
Simply Explained
ESP32 Cam: cropping images on device
The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640...
over a year ago
The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640 sensor has a max resolution of 1600x1200, but sometimes you don't need the entire image.In this post I'll show how to crop the images on the ESP32 itself, before sending it of to...
Odds and Ends of...
Nobody knows what the National Data Library is (not even the government)
A policy wrapped in a mystery inside an enigma
2 months ago
A policy wrapped in a mystery inside an enigma
./techtipsy
I looked at this site on the Wayback Machine
Yesterday was election day in Estonia and the results are in, which is why
I remembered that one...
a year ago
Yesterday was election day in Estonia and the results are in, which is why
I remembered that one time I looked at my website on the Wayback Machine.
This domain used to point to a Wordpress site that hosted
content for a candidate in the local elections,
at least around...
seangoedecke.com RSS...
Is it cynical to do what your manager wants?
When I suggest doing what your management chain wants, people call me cynical. Is it cynical to...
2 weeks ago
When I suggest doing what your management chain wants, people call me cynical. Is it cynical to deliberately work on things your company…
Vitalik Buterin's...
Should there be demand-based recurring fees on ENS domains?
over a year ago
Home on Erik...
More Luigi: Presentation from OSCON
I was in Portland, OR for a few days hanging out at OSCON. Was fun. I also talked a bit about...
over a year ago
I was in Portland, OR for a few days hanging out at OSCON. Was fun. I also talked a bit about Luigi:
Next week I'm presenting at the NYC Predictive Analytics meetup together with Blake Shaw from Foursquare.
Arduino Blog
Zoo elephants get a musical toy to enrich their lives
Everyone loves looking at exotic animals and most of us only get to do that at zoos. But, of course,...
a month ago
Everyone loves looking at exotic animals and most of us only get to do that at zoos. But, of course, there is a lot to be said about the morality of keeping those animals in captivity. So, good zoos put a lot of effort into keeping their animals healthy and happy. For more...
watchTowr Labs
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623)
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a month ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely.
Cleo have a...
Arduino Blog
DexteriSync lets you walk a mile in the gloves of a user with manual disability
Good designers prioritize the user experience — particularly the experience of users with...
2 months ago
Good designers prioritize the user experience — particularly the experience of users with disabilities that affect their perception and fine motor skills. A young person without disabilities, for example, may feel that jars are easy to open, while an elderly person with reduced...
./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...
Applied Cartography
Klarna: nineteen years, twenty billion kroner
I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay...
a month ago
I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay (RIP), Klarna, et al — not for any particular sin I feel that they are committing, but because they in my mind are much less interesting companies with less volatile upside than the...
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...
Jonas Hietala
2016 Read Books
Yeah so I managed to not read a single fiction book this year. To compensate and make myself feel...
over a year ago
Yeah so I managed to not read a single fiction book this year. To compensate and make myself feel better I’ll add in some new mangas I’ve read, but I may may have missed some.
Fiction
Crickets
Non-Fiction
Getting to Yes
Relax into Stretch
Thinking, Fast and Slow
59 seconds
The...
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...
Good Enough
Cool Songs Don’t Die
Earlier this week, I watched the pilot episode of Alias. Yes, that Alias – the one that began airing...
a year ago
Earlier this week, I watched the pilot episode of Alias. Yes, that Alias – the one that began airing 22 years ago and ran for 5 seasons and was a pretty big hit and launched the careers of two bonafide movie stars and featured a cast of very well known supporting actors. So yeah,...
lcamtuf’s thing
Analog filters, part 2: let it ring
A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key...
3 months ago
A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key topology.
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...
a month ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Arduino Blog
Control your Raspberry Pi GPIOs with Arduino Cloud using Python | Part II
As a Python developer, you’re probably eager to control and monitor your Raspberry Pi GPIOs...
8 months ago
As a Python developer, you’re probably eager to control and monitor your Raspberry Pi GPIOs remotely. Well, you have landed in the right place. This article builds upon our previous introduction to “Visualize your Raspberry Pi data with Arduino Cloud | Part I.” Now, we’ll...
Birchtree
My favorite (and least favorite) movies of 2024
I’ve watched 48 new release movies in 2024, and with just a few weeks left in the year, I wanted to...
a month ago
I’ve watched 48 new release movies in 2024, and with just a few weeks left in the year, I wanted to make what is my current top 10 (plus honorable mentions & worst movies). As we get to the end of the year and you might have some
Jonas Hietala
Why I still blog after 15 years
Time flies when you’re having fun.
Before you know it, your little babies have started school, you...
3 months ago
Time flies when you’re having fun.
Before you know it, your little babies have started school, you celebrate the 30th anniversary of Jurassic Park, and that little blog you started have now been going for 15 years.
15 years is a long time; longer than I’ve been waiting for Winds...
./techtipsy
Good reads
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule,...
a year ago
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule, Manager’s Schedule
a must-read for anyone working in a software development team. Helps
express what most of us have felt at some point in our careers.
The case of the 500-mile...
Birchtree
The Vision Pro makes Touch ID more appealing
Ryan Christoffel writing on 9to5Mac: Why Vision Pro Is Apple’s Best Reason Yet to Bring Touch ID...
5 days ago
Ryan Christoffel writing on 9to5Mac: Why Vision Pro Is Apple’s Best Reason Yet to Bring Touch ID Back to iPhone
Because Face ID on iPhone does no good when Vision Pro is strapped to your face—an unfortunate detail I’m reminded of every time I
Lars Lofgren
The Billion-Dollar World of Parasite SEO: How to Cash In
Parasite SEO is when a third-party company partners with an established domain, then posts a bunch...
3 months ago
Parasite SEO is when a third-party company partners with an established domain, then posts a bunch of SEO content to make a bunch of money. Content often gets published in a subfolder or subdomain or the website. The goal is to leverage the domain’s trust with Google to get...
Louwrentius
Script that shows smart values of all disks'
Please use this tool on github instead of this ancient script.
So you have a Linux system with a lot...
over a year ago
Please use this tool on github instead of this ancient script.
So you have a Linux system with a lot of hard drives. If you want to quickly check on some key SMART values to determine the health of individual disks, you might be interested in this script.
I wrote a small Python...
Good Enough
How We Built Unique Social Preview Images for Pika
One of the goals of Pika,
the happy blogging software that we recently launched,
is to help you find...
11 months ago
One of the goals of Pika,
the happy blogging software that we recently launched,
is to help you find your own place on the internet.
Along with a nice place on the internet, when you share links to your blog we want them to represent your internet home,
which you've likely taken...
Notes on software...
Book Review: ANSI Common Lisp
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow....
over a year ago
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow. The only awkward component of the book's organization
is that he tends to use a concept one section before explicitly
introducing and defining that concept. I'm not sure yet if this...
Neil Madden
Book review: The Joy of Cryptography
Mike Rosulek, Oregon State University. Draft of January 3, 2021. Online: The Joy of Cryptography....
a year ago
Mike Rosulek, Oregon State University. Draft of January 3, 2021. Online: The Joy of Cryptography. This is a freely-available book covering introductory material on cryptography. It’s suitable for anyone with undergraduate-level computer science knowledge. As is often the case in...
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...
Home on Erik...
Waiting time, load factor, and queueing theory: why you need to cut your systems a bit of slack
I've been reading up on operations research lately, including queueing theory. It started out as a...
over a year ago
I've been reading up on operations research lately, including queueing theory. It started out as a way to understand the very complex mortgage process (I work at a mortgage startup) but it's turned into my little hammer and now I see nails everywhere.
Home on Erik...
Mortality statistics and Sweden's "dry tinder" effect
We live in a year of about 350,000 amateur epidemiologists and I have no desire to join that “club”....
over a year ago
We live in a year of about 350,000 amateur epidemiologists and I have no desire to join that “club”. But I read something about COVID-19 deaths that I thought was interesting and wanted to see if I could replicated it through data.
Louwrentius
Visual representation of hard drives and their temperature
If you build a NAS with many drives, it may be of interest to you which
drives get hot and where...
over a year ago
If you build a NAS with many drives, it may be of interest to you which
drives get hot and where they are located in the chassis. My Norco 4020 case
has twenty drives in RAID 6, plus two operating system drives in RAID 1. I
wrote a script that shows me the temperature of each...
./techtipsy
This page looks better in the app
You’re a web developer at a social media company that has recently made a big push for
modernizing...
over a year ago
You’re a web developer at a social media company that has recently made a big push for
modernizing their frontend for the mobile-first era. It has taken a lot of time and effort from many people.
Countless challenges, arguments, testing.
The release is near. You’re probably a bit...
Arduino Blog
Introducing Opta Expansions: scalable simplicity!
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and...
8 months ago
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and allowed us to reach PLC engineers with a new solution specifically designed for their needs. To further expand Opta’s capabilities, today the Arduino ecosystem welcomes various...
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...
Willem's Blog
How to use rsync to make backups
In this post I'll explain how to use rsync to transfer files to another computer system in an...
over a year ago
In this post I'll explain how to use rsync to transfer files to another computer system in an efficient manner, suitable to be used in a backup script.
Home on Erik...
Benchmarking nearest neighbor libraries in Python
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in...
over a year ago
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in Python. This is exciting, because one of the libraries he's covering, annoy, was built by me.
After introducing the problem, he goes through the list of contestants and sticks with...
Vitalik Buterin's...
What do I think about Community Notes?
a year ago
Notes on software...
What's the big deal about key-value databases like FoundationDB and RocksDB?
Let's assume you're familiar with basic SQL databases like PostgreSQL
and MySQL, and document...
over a year ago
Let's assume you're familiar with basic SQL databases like PostgreSQL
and MySQL, and document databases like MongoDB and Elasticsearch. You
probably know Redis too.
But you're hearing more and more about embedded key-value stores like
RocksDB,
LevelDB,
PebbleDB, and so on....
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?...
Louwrentius
Creating configuration backups of HP procurve switches
I've created a tool called procurve-watch. It creates a backup of the running switch configuration...
over a year ago
I've created a tool called procurve-watch. It creates a backup of the running switch configuration through secure shell (using scp).
It also diffs backed up configurations against older versions, in order to keep track of changes. If you run the script from cron every hour or...
Louwrentius
Script that shows relevant disk information
I wrote a small Python script called 'showdisks' that displays relevant information about any...
over a year ago
I wrote a small Python script called 'showdisks' that displays relevant information about any physical storage devices supported by hdparm.
Information such as model and capacity are shown, but also controller and device path.
This script only requires python and hdparm.
I hope...
Notes on software...
Writing a Jinja-inspired template library in Python
In this post we'll build a minimal text templating library in Python
inspired by Jinja. It will be...
over a year ago
In this post we'll build a minimal text templating library in Python
inspired by Jinja. It will be able to display variables and iterate
over arrays.
By the end of this article, with around 300 lines of code, we'll be
able to create this program:
from pytemplate import...
Notes on software...
Confusion and disengagement in meetings
The quickest way to cut through confusion or disagreement among
otherwise amiable and honest folks...
over a year ago
The quickest way to cut through confusion or disagreement among
otherwise amiable and honest folks is to ask questions.
Ask early so you don't waste time. But it's not enough to just ask
clarifying questions because the answers won't always be clear.
Sounds like Human Interaction...
Posts on Made of...
Write testable code by writing generic code
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains...
over a year ago
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains several software engineers nearly as obsessed with software testing as I am):
uhh, so I’m writing some code to handle an econnreset… how do I test this?
This is a good question!...
Lars Lofgren
My 7 Rules for A/B Testing That Triple Conversion Rates
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I...
over a year ago
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I double or triple conversion rates without caring how a test performs? I actually care about the whole SYSTEM of testing. All the pieces need to fit together just right. If not,...
./techtipsy
Disk is OK
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of...
over a year ago
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of Midas.
Or maybe it’s just the fact that I use my hardware for things they were never meant to be used for.
Anyway, I have acquired two Seagate 4TB external hard drives for doing some...
Home on Erik...
Analyzing 50k fonts using deep neural networks
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I...
over a year ago
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I had a bunch of scrapy scripts pulling down fonts and a few days later I had more than 50k fonts on my computer.
Posts on Made of...
Why scons is cool
I’ve recently started playing with scons a little for some small personal projects. It’s not...
over a year ago
I’ve recently started playing with scons a little for some small personal projects. It’s not perfect, but I’ve rapidly come to the conclusion that it’s a probably far better choice than make in many cases. The main exceptions would be cases where you need to integrate into legacy...
Willem's Blog
Art of visualisation
You learn from experts if you have the privilege to work with them, this month I had a chance to...
over a year ago
You learn from experts if you have the privilege to work with them, this month I had a chance to help a professional food photographer.
computers are bad
2024-05-15 catalina connections
Some things have been made nearly impossible to search for. Say, for example,
the long-running...
8 months ago
Some things have been made nearly impossible to search for. Say, for example,
the long-running partnership between Epson and Catalina: a query that will
return pages upon pages of people trying to use Epson printers with an old
version of MacOS.
When you think of a point of sale...
Home on Erik...
We're hiring at Better
Just a quick note that my team is always hiring at Better. A lot of new people have been joining the...
over a year ago
Just a quick note that my team is always hiring at Better. A lot of new people have been joining the team here in NYC lately—the tech team has actually grown from 35 to 60 in just ~3 months.
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...
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...
4 months ago
For every shareware game I released in the 1990's, another four were partially written but put aside and abandoned.
Jonas Hietala
Let's build a VORON: Wiring
Dread it. Run from it. Wiring arrives all the same.
It’s time for the part of my VORON build that...
a year ago
Dread it. Run from it. Wiring arrives all the same.
It’s time for the part of my VORON build that I’ve been dreading: the wiring.
It’s scary because I really have no clue what I’m doing, and mistakes can be very costly and time-consuming.
I’ve taken my time to double- and...
Odds and Ends of...
Britain should ban TikTok
My uncharacteristically illiberal opinion
yesterday
My uncharacteristically illiberal opinion
./techtipsy
ThinkPad T40: it can still run modern Linux, for now
I recently busted out my old ThinkPad T40, the last of the OG IBM ThinkPads.
I picked it up some...
8 months ago
I recently busted out my old ThinkPad T40, the last of the OG IBM ThinkPads.
I picked it up some time around my university days because I liked collecting
ThinkPads at the time, and it was a nice complement to my existing ThinkPad T60
and T430.
The battery is dead, but everything...
Posts on Made of...
Implementing a declarative mini-language in the C preprocessor
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time,...
over a year ago
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time, I want to talk about the tricks I used to implement a declarative minilanguage using the C preprocessor (and some GCC extensions).
The Problem We want to write some toplevel...
Jorge Arango
What’s the Object of Information Architecture?
Ironically, information architects haven’t explained how we create value in terms most people...
2 weeks ago
Ironically, information architects haven’t explained how we create value in terms most people understand. If I tell someone at a party that I’m an IA, they won’t know what I do. It’s a problem: if others don’t understand how we can help, they won’t hire us.
The main challenge is...
Arduino Blog
This machine automatically creates chain art
Art is very personal and we often consider the process of creation itself when evaluating the...
6 months ago
Art is very personal and we often consider the process of creation itself when evaluating the resulting piece. Does a sculpture have more artistic value when molded by human hands rather than a 3D printer? Most would say that it does. But what if the automation was, itself, part...
Notes on software...
A minimal distributed key-value database with Hashicorp's Raft library
When I wrote the "build a distributed PostgreSQL proof of
concept" post I first had to figure...
over a year ago
When I wrote the "build a distributed PostgreSQL proof of
concept" post I first had to figure out
how to use Hashicorp's Raft
implementation.
There weren't any examples I could find in the Hashicorp repo
itself. And the only example I could find was Philip O'Toole's
hraftd. It's...
Christian Selig
Instant Pan Gesture Interactions
Apple has a really awesome WWDC 2018 video called Designing Fluid Interfaces, and one of the key...
a year ago
Apple has a really awesome WWDC 2018 video called Designing Fluid Interfaces, and one of the key takeaways from the videos that one of the presenters, Chan Karunamuni, said is “Look for delays everywhere. Everything needs to respond instantly.” (6:28)
A really great example of...
watchTowr Labs
Palo Alto - Putting The Protecc In GlobalProtect (CVE-2024-3400)
Welcome to April 2024, again. We’re back, again.
Over the weekend, we were all greeted by...
9 months ago
Welcome to April 2024, again. We’re back, again.
Over the weekend, we were all greeted by now-familiar news—a nation-state was exploiting a “sophisticated” vulnerability for full compromise in yet another enterprise-grade SSLVPN device.
We’ve seen all the commentary around the...
Jonas Hietala
It's Time for More School
Today it’s finally starting again and it’s off with a flying start. We have 11 lectures this first...
over a year ago
Today it’s finally starting again and it’s off with a flying start. We have 11 lectures this first week and an absolutely smacked schedule. If that wasn’t enough I also have a mentor time to prepare for and I need to start Taekwon-do again.
On another note Ḯ’m currently plowing...
Buck on Software
Vertical Aggregation
I’ve written in the past that I think returns for SaaS won’t be as attractive over the next decade.
over a year ago
I’ve written in the past that I think returns for SaaS won’t be as attractive over the next decade.
Willem's Blog
Cyber security: 5 easy tips to protect your server against hackers
These 5 practical cyber security measures will improve the safety of server, website and data.
over a year ago
These 5 practical cyber security measures will improve the safety of server, website and data.
Applied Cartography
November, 2024
Not a lot to share this month; it was a particularly busy time, between a mystery (and now solved,...
a month ago
Not a lot to share this month; it was a particularly busy time, between a mystery (and now solved, without fanfare or closure) cough and a dearth of time to write as I started to explore easing back into full-time work.
Still, some writing (and selfishly, I'm excited to end the...
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...
computers are bad
2023-10-09 prolific counterfeiting
I'm working on a side project right now, one of several, which involves
telematics devices...
a year ago
I'm working on a side project right now, one of several, which involves
telematics devices (essentially GPS trackers with i/o) from a fairly reputable
Chinese manufacturer. The device is endlessly configurable and so, like you see
with a lot of radios, it has a UART for...
Push to Prod
When Overwhelmed, Make a List of Questions
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
5 months ago
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
Notes on software...
Confusion is a muse
Some of the most interesting technical blog posts I read come from,
and a common reason for posts I...
7 months ago
Some of the most interesting technical blog posts I read come from,
and a common reason for posts I write is, confusion. You're at work
and you start asking questions that are difficult to answer. You spend
a few hours or a day trying to get to the bottom of things.
If you ask a...
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...
4 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...
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...
Willem's Blog
Six months with MCADD
It's six months since our son was born with MCADD, a good moment to reflect upon the experience of...
over a year ago
It's six months since our son was born with MCADD, a good moment to reflect upon the experience of being a parent with some thoughts and tips.
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...
Christian Selig
My little Apple Vision Pro stand
I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s...
11 months ago
I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s beautiful stands that exist out there, but I was looking for something more compact and vertical so it would take up less room on my desk.
So I opened Fusion 360 (which I am still...
Jonas Hietala
Ludum Dare 29 Entry
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally...
over a year ago
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally unprepared, but I did setup a setup which actually compiles. I never got audio to run but hopefully I can manage something.
Repository: https://github.com/treeman/LD29. Going for C++ this...
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.
Arduino Blog
The new Auxivo EduExo Pro helps students with exoskeleton research
Emerging technologies initially develop at a slow pace and that is due in large part to the lack of...
6 months ago
Emerging technologies initially develop at a slow pace and that is due in large part to the lack of resources available to students. Complex technology is built on existing knowledge and higher education students need the tools to gain hands-on experience. To help educate the...
lcamtuf’s thing
Random object: Sony Mavica MVC-FD73
Floppy disk digital cameras, or why our views of technological progress are not always rooted in...
6 days ago
Floppy disk digital cameras, or why our views of technological progress are not always rooted in reality.
Birchtree
Ghostty is the hot new terminal and it’s out now
Ghostty is a hip new terminal from Mitchell Hashimoto, who he described in October’s Ghostty 1.0 Is...
3 weeks ago
Ghostty is a hip new terminal from Mitchell Hashimoto, who he described in October’s Ghostty 1.0 Is Coming:
With Ghostty, I set out to build a terminal emulator that was fast, feature-rich, and had a platform-native GUI while still being cross-platform. I believe Ghostty 1.0...
Arduino Blog
Discover #Virgil: history comes to life with Arduino
We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino...
3 months ago
We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino technology with a passion for history, creating a groundbreaking interactive experience for museums. Using Arduino’s versatile and scalable ecosystem, #Virgil operates completely...
Louwrentius
Linux: script that creates table of network interface properties
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an...
over a year ago
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an existing linux command for this but I couldn't find it so I quickly wrote my
own script (download).
This is the output:
The only requirement for this script is that you have...
Applied Cartography
Linear
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes...
a month ago
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes I wanted to publish on our own experience of migrating from GitHub Issues to Linear, and some reflections on it as a product now that we've been using it for a few months.
One...
Jonas Hietala
Getting Comfortable
So I physically built the computer and now I’ve been using it a while, configuring stuff and getting...
over a year ago
So I physically built the computer and now I’ve been using it a while, configuring stuff and getting used to my new screens. I think they’re about three times wide as my old laptop and now I have this one huge vertical space which is absolutely wonderful for surfing forums and...
Willem's Blog
Syncing files seamlessly between smartphone and tablet
In order to optimise my workflow, I was looking for a way to seamlessly access the same files on...
over a year ago
In order to optimise my workflow, I was looking for a way to seamlessly access the same files on both my computer and smartphone. Read along to find out how I did it.
Vitalik Buterin's...
Plurality philosophy in an incredibly oversized nutshell
5 months ago
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...
Jonas Hietala
I'm writing a book: Why Cryptocurrencies?
I decided to write a book. It’s called “Why Cryptocurrencies?” and I will be uploading chapters as I...
over a year ago
I decided to write a book. It’s called “Why Cryptocurrencies?” and I will be uploading chapters as I complete them. It’s available to read online for free. I’ve only uploaded the introductory parts but I’ve got a bunch more planned.
Why write a book you ask? Well, why not?
I...
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...
Arduino Blog
This device prevents garage door security breaches
Your automatic garage door is almost certainly the most vulnerable access point in your house....
3 months ago
Your automatic garage door is almost certainly the most vulnerable access point in your house. Traditional systems are notorious for their susceptibility to replay attacks, but even more sophisticated modern garage door openers and those that lack remote functionality entirely...
Jonas Hietala
2022 in review
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice...
a year ago
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice to see that despite a tough year I’ve done some good things.
2022 Non-Geek Achievements
We got our third child!
This time we got a girl to complement our two boys, and I love them...
Good Enough
PEOs are Good Enough (for us)
Hi, I’m Patrick. Good Enough brought me on as a part-time Operations Manager who basically does all...
a year ago
Hi, I’m Patrick. Good Enough brought me on as a part-time Operations Manager who basically does all the things that Shawn and Barry don’t want to do! My first task was to set up payroll for Good Enough’s three employees, something we thought would maybe be worth talking about!
If...
Vitalik Buterin's...
Exploring Fully Homomorphic Encryption
over a year ago
Computer Ads from...
Electronic Protection Devices' Electro-Clamp line
The Underrated Virtues of Plain Vanilla
10 months ago
The Underrated Virtues of Plain Vanilla
Louwrentius
'Linux: monitor a directory for files'
Inotify is a mechanism in the Linux kernel that reports when a file system
event occurs.
The...
over a year ago
Inotify is a mechanism in the Linux kernel that reports when a file system
event occurs.
The inotifywait comand line utility can be used in shell scripts to monitor
directories for new files. It can also be used to monitor files for changes.
Inotifywait must be installed and is...
Old Vintage...
Reversing the Web-@nywhere Watch: browse fragments of the Web on your wrist
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection...
a year ago
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection in your house was between the cordless phone and the wall, anything having to do with the Web was best consumed in small bites (pun intended). If you wanted to take data with you,...
Posts on Made of...
Building LLVM in 90 seconds using Amazon Lambda
Last week, Frederic Cambus wrote about building LLVM quickly on some very large machines,...
over a year ago
Last week, Frederic Cambus wrote about building LLVM quickly on some very large machines, culminating in a 2m37s build on a 160-core ARM machine.
I don’t have a giant ARM behemoth, but I have been working on a tool I call Llama, which lets you offload computational work –...
Jonas Hietala
Pushing toward Git
The time has come; it’s time for me to move my source out in the open for the first time.
Repository...
over a year ago
The time has come; it’s time for me to move my source out in the open for the first time.
Repository deleted, never became anything
Available on Github
It’s nothing special really, if you want take a look at the code and help me improve it.
Jonas Hietala
Picking up rust by writing a QR code generator
I wanted to pick up rust again after having used it many years ago. After around 5 years or so I...
over a year ago
I wanted to pick up rust again after having used it many years ago. After around 5 years or so I didn’t really know where to start?
Approaches to picking up a language
When learning, or as in this case re-learning, a programming language there are different approaches. For...
Computer Ads from...
Two Interviews with Ken Kaplan, One of the Creators of OS-9
Two interview from two different time periods
5 months ago
Two interview from two different time periods
Odds and Ends of...
I'm pro-assisted dying in principle, but I'm not sure about the proposed law
Is no law better than a bad law?
2 months ago
Is no law better than a bad law?
Home on Erik...
Ping the world
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some...
over a year ago
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some notes:
What's going on with Sweden? Too much torrenting? Ireland is likewise super slow, but not Northern Ireland Eastern Ukraine is also super slow, maybe not surprising given...
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.
Neil Madden
SipHash-based encryption for constrained devices
I see a lot of attempts to define encryption schemes for constrained devices with short...
8 months ago
I see a lot of attempts to define encryption schemes for constrained devices with short authentication tags (e.g., 64 bits) using universal hashing. For example, there’s a proposal in CFRG at the moment for a version of AES-GCM with short tags for this kind of use-case. In my...
./techtipsy
Oversimplified guide into snapshots on the btrfs filesystem
Friday afternoon. You’re trying out a script that you wrote to mass-rename and
move some files...
over a year ago
Friday afternoon. You’re trying out a script that you wrote to mass-rename and
move some files around. You finish the script and test it out.
Oops.
All the files now have all the wrong names, and some have been randomly moved
10 folders deep. It’s a mess.
And you didn’t make a...
Home on Erik...
NYC Machine Learning meetup
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly....
over a year ago
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly. Unfortunately the quality isn't the best.
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...
Louwrentius
The Raspberry Pi 5 is no match for a tini-mini-micro PC
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable...
7 months ago
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable computer. An ideal home server. Until the Pi 4, the Pi was not that capable, and only with the relatively recent Pi 5 (fall 2023) do I feel the Pi is OK performance wise, although...
Jonas Hietala
December Theme: New World Order
The The Experimental Gameplay Project drives on with the Art Game theme which will last the rest of...
over a year ago
The The Experimental Gameplay Project drives on with the Art Game theme which will last the rest of this year but that’s something we can’t accept! I’ve done my game and I didn’t force myself out from the Haskell world just to do nuthin so here’s a new little theme for me :)
What...
Christian Selig
Juno 1.1
If you’re new, Juno is a visionOS app for YouTube!
Juno’s initial launch blew my socks off. It was...
11 months ago
If you’re new, Juno is a visionOS app for YouTube!
Juno’s initial launch blew my socks off. It was such a cool feeling to release an app on day one of the Apple Vision Pro’s launch, and having people be so excited about it and have such great feedback made it that much better....
Louwrentius
71 TiB DIY NAS based on ZFS on Linux
This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB...
over a year ago
This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB NAS (17 TiB). With a storage capacity four times higher than the original and an incredible read (2.5 GB/s)/write (1.9 GB/s) performance, it's a worthy successor.
Purpose
The...
Birchtree
I don’t care about bad or missing features that I don’t use
Sometimes I’ll talk about something I like online and people will express shock that I can use a...
a month ago
Sometimes I’ll talk about something I like online and people will express shock that I can use a product that has such a clear downside. I’ve gotten people ask how I can use Things since it doesn’t have shared task lists. More recently I
Louwrentius
My home network setup based on managed switches and VLANs
My home networking setup
I live in a two story apartment, with on the top floor my utilities closet...
over a year ago
My home networking setup
I live in a two story apartment, with on the top floor my utilities closet and my living room. The bottom floor contains a bedroom with all my servers and networking gear.
So this is my setup (click for a bigger version):
I like to run my own router but...
Engineers Need Art
Mooncraft 2000
A web-based game, Mooncraft 2000 is released.
over a year ago
A web-based game, Mooncraft 2000 is released.
Posts on Made of...
DEF CON
I’m sitting in the airport in Las Vegas on the way back from DEF CON 15. It’s the first time I’ve...
over a year ago
I’m sitting in the airport in Las Vegas on the way back from DEF CON 15. It’s the first time I’ve been at the con, and it wasn’t really what I expected. Frankly, I walked away feeling kinda underwhelmed.
Very few of the talks were as technical as I was hoping – they were almost...
Matt Mullenweg
What’s in My Bag, 2025
It’s another year, I have ordered all the things and tested all the cables, there’s a little bit...
yesterday
It’s another year, I have ordered all the things and tested all the cables, there’s a little bit about tech and a little bit about life. Here’s what made the cut, now I’m going to be factoring in weight of everything as well. The flat-lay this year was taken at my sister...
Willem's Blog
Master of Change
In this post I discuss the brilliant book Master of Change by Brad Stulberg, providing a...
5 days ago
In this post I discuss the brilliant book Master of Change by Brad Stulberg, providing a thought-provoking guide to thrive in a changing world.
Jonas Hietala
Widening the horizon
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in...
over a year ago
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in making games lately and I’ve been doing different things, just to get my ideas and my motivation up. As I said in an earlier post I wanted a break from Experimental Games and I...
On Life and Lisp
Fun and Games with Exposure Notifications
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact...
over a year ago
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact tracing on mobile phones by exchanging codes with nearby phones over Bluetooth, implemented within the Android and iOS operating systems, now available here in Toronto.
Wait –...
Birchtree
When do the Trump flags come down? (members post)
The flags are still flying, celebrating the man, not the country. Why is this something that happens...
a month ago
The flags are still flying, celebrating the man, not the country. Why is this something that happens now, and why is it something only happening on one end of the political spectrum?
Posts on Made of...
Git in pictures
In my previous blog post, I discussed how git is distinctive among version control system in the way...
over a year ago
In my previous blog post, I discussed how git is distinctive among version control system in the way in which it makes the backend model that is being used to store data the most important element of the tool, and that experts use it by having the complete model in their head,...
Arduino Blog
Play rock-paper-scissors using a time-of-flight sensor and an Arduino UNO R4
Owing to its simplicity and fast-paced nature, rock-paper-scissors is a great game to play with...
6 months ago
Owing to its simplicity and fast-paced nature, rock-paper-scissors is a great game to play with friends, and when it comes to translating it into a digital format, many creative adaptations can be made. This version by madmcu forgoes the typical three-button input scheme in favor...
Notes on software...
Extending gosql to supporting LIMIT and OFFSET
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface...
over a year ago
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface for data stored in S3. But one missing
critical feature in gosql is LIMIT and OFFSET support. This post walks
through the few key changes to gosql to support LIMIT and OFFSET.
You...
Electronics etc…
Measuring the HP 11720A Pulse Modulator and Coax Cables
Introduction
What is a pulse modulator and what are they used for?
The HP 11720A Pulse...
a year ago
Introduction
What is a pulse modulator and what are they used for?
The HP 11720A Pulse Modulator
Inside the HP 11720A
Measurement Setup for a Quick Testing Session
Pin Modulator Power Measurements with HP 432A
Cable Loss Measurements with HP 432A
Cable Power Measurements with...
Jonas Hietala
Offset coordinates in Krita with Xinerama
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want...
over a year ago
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want to learn how to draw. And what better way to do it than with a drawing tablet, while satisfying my need for new things?
With little experience I boldly set forth and I found a...
Arduino Blog
Arduino’s Alvik Robot shortlisted for the Bett Awards 2025 in the AV, VR/AR, Robotics, and Digital...
We’re thrilled to announce that Arduino Education has been shortlisted for the Bett Awards 2025,...
2 months ago
We’re thrilled to announce that Arduino Education has been shortlisted for the Bett Awards 2025, this time in the AV, VR/AR, Robotics, or Digital Device category with our Alvik robot! This recognition highlights our dedication to innovation, inclusivity, and the advancement of...
Willem's Blog
Three tips to make a content strategy work
Consider these three things to maximise the effect of the words you write for your website, blog or...
over a year ago
Consider these three things to maximise the effect of the words you write for your website, blog or company.
Simply Explained
MAX17043: Battery Monitoring Done Right (Arduino & ESP32)
Building a battery-powered IoT device? Then you'll want to monitor the battery's percentage. Here's...
over a year ago
Building a battery-powered IoT device? Then you'll want to monitor the battery's percentage. Here's how to do it properly.
Louwrentius
ZFS on Linux: monitor cache hit ratio
I'm performing some FIO random read 4k I/O benchmarks on a ZFS file system. So since I didn't trust...
over a year ago
I'm performing some FIO random read 4k I/O benchmarks on a ZFS file system. So since I didn't trust the numbers I got, I wanted to know how many of the IOPs I got were due to cache hits rather than disk hits.
This is why I wrote a small shell script called archhitratio.
Sample...
Good Enough
Our ChatGPT Mission Statement
What follows is an edited transcript of my interaction with ChatGPT to help craft a mission...
a year ago
What follows is an edited transcript of my interaction with ChatGPT to help craft a mission statement for Good Enough.
The resulting mission statement was surprisingly good and I had some literal LOLs along the way.
Though I think we'll leave out the haiku.
You are an expert at...
Louwrentius
Scrub your NAS hard drives regularly if you care about your data
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known...
over a year ago
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known vendors1, or it's a custom build solution (DIY2) based on hardware you bought and assembled yourself.
Buying or building a NAS is one thing, but operating it in a way that assures...
Construction Physics
The Long Road to Fiber Optics
Over the past six decades, advances in computers and microprocessors have completely reshaped our...
4 months ago
Over the past six decades, advances in computers and microprocessors have completely reshaped our world.
Louwrentius
Why the iPad will be a breakthrough in human computing
The fact is that computers aren't made for humans. Computers are just made,
and humans have to...
over a year ago
The fact is that computers aren't made for humans. Computers are just made,
and humans have to adjust to them.
The problem is that most people that are not into technology just don't
understand how computers work. Should I single click of double click? Click
left or right?
The...
Willem's Blog
Commuter bike checkup
This week my trustworthy commuter bike started making strange squeaking noises when braking, time to...
over a year ago
This week my trustworthy commuter bike started making strange squeaking noises when braking, time to have a look at the bike after 21.000KM!
Birchtree
I’m Not a Panda Person
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web...
a month 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!
Computer Ads from...
Applied Analytics' MicroSPEED
Test-Fly A $20 Million Jet On An Apple? Yes. With MicroSPEED
7 months ago
Test-Fly A $20 Million Jet On An Apple? Yes. With MicroSPEED
OH8HUB’s Substack
Spring ham radio activation of Korkattivuori (Mt. Korkatti)
Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature...
a year ago
Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature reserve area near town Haapavesi (pop. 6588) in Finland. The nature reserve area consist of short family friendly hiking path of approximately 1.5km. One end of the path has parking...
Matt Mullenweg
Disrupt Interview
On Wednesday I had a great chat with Connie Loizos, the editor in chief of TechCrunch, you can view...
2 months ago
On Wednesday I had a great chat with Connie Loizos, the editor in chief of TechCrunch, you can view the video here: Then yesterday Automattic filed its legal responses to the spurious lawfare from WP Engine, Silver Lake, and Quinn Emanuel. It’s a bit long, but if you have time...
Nabeel S. Qureshi
Advice That Actually Worked For Me
My contribution to the 'productivity advice' genre.
over a year ago
My contribution to the 'productivity advice' genre.
Posts on Made of...
Why the Sorbet typechecker is fast
This is the second in an indefinite series of posts about things that I think went well in the...
over a year ago
This is the second in an indefinite series of posts about things that I think went well in the Sorbet project. The previous one covered our testing approach.
Sorbet is fast. Numerous of our early users commented specifically on how fast it was, and how much they appreciated this...
Old Vintage...
Adding a cooling fan to the Commodore 128DCR
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a...
a year ago
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a hot, horrid summer in Floodgap Very Sub-Orbital Headquarters and I was somewhat concerned about the heat in the house computer lab even with the A/C cranked up to "Vegas weekend for...
Matt Blewitt
Riding the Risk Railway
When building and operating a user-facing system, especially one that is open to the public, it is...
over a year ago
When building and operating a user-facing system, especially one that is open to the public, it is important to consider the riskiness of a user, which can also be characterised as trustworthiness. These will typically be negatively correlated, with low trust indicating high risk...
Simply Explained
Good Home Automation Should be Boring
I'm a huge fan of Home Assistant to automate various things around the house. I often look at other...
over a year ago
I'm a huge fan of Home Assistant to automate various things around the house. I often look at other people's setup for inspiration, and one thing struck me. Many people have cluttered dashboards and use Home Assistant to track just about any metric they can.That's quite different...
Jonas Hietala
Going down
Ah my first game was so painless so I thought I could do any game I could imagine! Shooters, and...
over a year ago
Ah my first game was so painless so I thought I could do any game I could imagine! Shooters, and mario bros kinda stuff. Well now I’m not so upbeat anymore, I’ve worked on this game for 7 days now and it’s not playable at all. With seven days I don’t mean a week, I’ve had a big...
Jonas Hietala
A type checking error in Elixir 1.18
Although I’m a big Elixir fan, the lack of static typing has always been my biggest annoyance (and...
3 weeks ago
Although I’m a big Elixir fan, the lack of static typing has always been my biggest annoyance (and why I think Gleam is so cool).
I think static typing helps catch bugs earlier and in an automated way, leading to less buggy software and saves time in the long run.
To my great joy...
Notes on software...
Writing a simple JSON parser
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format...
over a year ago
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format is extremely simple. It's defined
recursively so you get a slight challenge compared to, say, parsing
Brainfuck; and you probably
already use JSON. Aside from that last point,...
Opsbros
JSON and PowerShell
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will...
over a year ago
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will allow you to manipulate these objects efficiently.
Notes on software...
How to get better at recursion
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For...
over a year ago
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For a few years after college I spent a lot of free time doing
projects in Standard ML and Scheme. As a result I got really
comfortable doing recursion. The two big reasons for this...
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...
Louwrentius
'Syslog: the hidden security risk'
People sometimes forget that there are also a number of UDP-based services
that may pose a threat to...
over a year ago
People sometimes forget that there are also a number of UDP-based services
that may pose a threat to the security of your systems. SNMP is a well-known
service, notorious for being configured with a default password (or community
string).
But there is another service that is...
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.
Home on Erik...
On the Equifax breach and how to really prevent identity theft
A funny thing about being a foreigner is how you realize people take broken things for granted. I'm...
over a year ago
A funny thing about being a foreigner is how you realize people take broken things for granted. I'm going to go out on a limb here claiming that the US has a pretty dumb banking system.
Vitalik Buterin's...
[Mirror] Bir Proof of Stake Tasarım Felsefesi
over a year ago
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
6 months ago
Vitalik Buterin's...
[Mirror] Exploring Elliptic Curve Pairings
over a year ago
Posts on Made of...
Navigating the Linux Kernel
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way...
over a year ago
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way around the Linux kernel. I’m not sure I have much in the way of systematic advice for tracking down the answers to questions about the Linux kernel, but thinking about what I do when...
Louwrentius
Please use ZFS with ECC Memory
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a...
over a year ago
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a NAS. I would argue that if you do not use ECC memory, it's reasonable to also forgo on ZFS altogether and use any (legacy) file system that suits your needs.
Why ZFS?
Many people...
Vitalik Buterin's...
Deeper dive on cross-L2 reading for wallets and other use cases
a year ago
Good Enough
All About CSS: Alphabetize, Normalize, and Dark-mode-itize
Hello reader, I’m Matthew, the newest member of Good Enough (LLC). The rest of the team are avid...
a year ago
Hello reader, I’m Matthew, the newest member of Good Enough (LLC). The rest of the team are avid writers and sharers… I’m not. But they keep chanting “One of us. One of us.” so I suppose you’ll see me around here sometimes.
For my inaugural post, I thought I’d quickly share what...
latest projects -...
Badge
[Hardware] A RISC-V LED matrix
a year ago
[Hardware] A RISC-V LED matrix
Louwrentius
Setting up a VPN with your iPhone using L2TP, IPSec and Linux
This blogpost discusses how to setup an IPSec-based VPN between your iPhone and a Linux server....
over a year ago
This blogpost discusses how to setup an IPSec-based VPN between your iPhone and a Linux server.
Updated 16 October 2012 - now compatible with Ubuntu 12.04 LTS
IMPORTANT! (update January 2013)
I find using OpenVPN with the new iOS OpenVPN client a way better solution. OpenVPN...
Applied Cartography
Bluesky is good
Three months ago, I wrote Bluesky et al, in which I walked through the various platforms vying for...
a month 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...
Ken Shirriff's blog
Reverse-engineering an analog Bendix air data computer: part 4, the Mach section
MathJax = {
tex: {
inlineMath: [['$', '$'], ['\\(', '\\)']]
},
svg: {
fontCache:...
11 months ago
MathJax = {
tex: {
inlineMath: [['$', '$'], ['\\(', '\\)']]
},
svg: {
fontCache: 'global'
},
chtml: { displayAlign: 'left' }
};
MathJax.Hub.Config({
"HTML-CSS": { scale: 175}
});
.MathJax {font-size: 1em !important}
In the 1950s, many fighter...
Vitalik Buterin's...
Review of Gitcoin Quadratic Funding Round 3
over a year ago
Notes on software...
HTML event handler attributes: down the rabbit hole
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
Netrunner Summer Tournament Linköping
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs...
over a year ago
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs with Old Hollywood and The Universe of Tomorrow so a lot of new things were tried. I heard a rumor that a full playset of both Aesop’s Pawnshop and Wyldside were available so I...
Home on Erik...
Scala Data Pipelines for Music Recommendations
Chris Johnson‘s presentation from Data Day Texas:
over a year ago
Chris Johnson‘s presentation from Data Day Texas:
latest projects -...
Light comms on the 003
[Hardware] Tiny terrahertz transmissions
5 months ago
[Hardware] Tiny terrahertz transmissions
Willem's Blog
Optimising images for the web and performance
Make your website faster by optimising the images. This posts explains how you can do this.
over a year ago
Make your website faster by optimising the images. This posts explains how you can do this.
Lighthouse Blog
Updates September 9: Feed finding
4 months ago
Matt Mullenweg
Cloudflare Stories
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s...
3 months ago
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s incredible story about Tim Jenkin, who created a secure communication protocol for the African National Congress to overthrow the apartheid regime in South Africa. Cloudflare’s CTO,...
Applied Cartography
Letters to a Young Bartender
Every straight white male is forced, character-creation-screen-style, to choose one overtly...
a month ago
Every straight white male is forced, character-creation-screen-style, to choose one overtly consumptive hobby that in some small part defines their twenties and – God willing — their enduring adulthood. Some choose sourdough; many choose barbecue; I chose mixology.
(A...
Matt Mullenweg
On with Theo / T3.gg
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled...
3 months ago
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled This might be the end of WordPress. It was very harsh. In that video you’ll hear him say about me, “he’s a chronic hater” (7:55), “seems like he’s been a pretty petty bastard for a...
./techtipsy
The Fedora Linux starter pack: everything you need for a smooth experience
I like Fedora Linux.
It’s the Linux distro that stopped my habit of distro-hopping. Big
deal? Ooh,...
3 months ago
I like Fedora Linux.
It’s the Linux distro that stopped my habit of distro-hopping. Big
deal? Ooh, big deal!
It’s stable in day-to-day use, ships with up-to-date software, and the software selection is adequate out of the box.
It also ships with a fresh Linux kernel version1,...
Nabeel S. Qureshi
Video Games are the Future of Education
The things you learn by yourself stick; the things that are “taught” to you do not stick.
over a year ago
The things you learn by yourself stick; the things that are “taught” to you do not stick.
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
Autumn 2016 Goals Retrospective
Earlier this year I set out some goals I wanted to accomplish this autumn. I accomplished a few...
over a year ago
Earlier this year I set out some goals I wanted to accomplish this autumn. I accomplished a few things and I failed others.
Exercise and Health
Eat more strict LCHF for 1 month ok
Train BJJ or MMA for 1 month ok
2 months of lifting at the gym ok
Powerlifting
100 kg deadlift 5x5...
Posts on Made of...
Using wpa_supplicant on Debian/Ubuntu
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that...
over a year ago
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that it’s pretty close to what I want for managing wireless — closer than anything else I’ve found, at least. I figured I should document my setup and experiences.
Some Background You...
Notes on software...
Benchmarking esbuild, swc, tsc, and babel for React/JSX projects
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.
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...
Arduino Blog
Reimagining the chicken coop with predator detection, Wi-Fi control, and more
The traditional backyard chicken coop is a very simple structure that typically consists of a...
5 months ago
The traditional backyard chicken coop is a very simple structure that typically consists of a nesting area, an egg-retrieval panel, and a way to provide food and water as needed. Realizing that some aspects of raising chickens are too labor-intensive, the Coders Cafe crew decided...
Matt Blewitt
Point and Call
It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter...
over a year ago
It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter Expert (SME) for. Sleepy, you load up the playbook for when the SplineReticulatorBlocked alert has gone off, and start executing. The Incident Commander (IC) is vaguely aware of what...
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
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...
8 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...
Posts on Made of...
Dear Twitter: Stop screwing over your developers.
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online...
over a year ago
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online communities, and is a surprisingly effective way to spread news and information to lots of people online. One of the things that I’ve loved about Twitter is their API, and how open and...
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.
Jonas Hietala
February gets Themed: Rejection
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t...
over a year ago
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t follow suite! With valentine coming up I might just have found a pretty nice idea, just now, writing this…
Booyah!!
Willem's Blog
Listen to your body
Using health data gathered by sensors and wearables I learned to listen to my body. Now I have...
over a year ago
Using health data gathered by sensors and wearables I learned to listen to my body. Now I have stopped using bluetooth sensors all together.
Willem's Blog
From tree to table
Creating a night stand from a raw slab of chestnut wood.
over a year ago
Creating a night stand from a raw slab of chestnut wood.
Louwrentius
8 TB RAID 6 Linux software RAID using EXT4
Mobo: Asus P5Q-EM DO ( 6x sata)
CPU: Core 2 Duo E7400
RAM: 4 GB
Controller; HighPoint RocketRAID...
over a year ago
Mobo: Asus P5Q-EM DO ( 6x sata)
CPU: Core 2 Duo E7400
RAM: 4 GB
Controller; HighPoint RocketRAID 2314 (16x poorten)
PSU: CooMas Silent Pro M 600W ATX2 (definitely not overkill)
HD: Samsung 1 TB SAT2 HD103UJ (10x)
OS: Debian Lenny with custom kernel (backported)
FS: EXT4
RAID...
Jonas Hietala
FTL got a new victim
Faster than Light the great game I lost a ton of time on, has found a new victim. It’s not someone...
over a year ago
Faster than Light the great game I lost a ton of time on, has found a new victim. It’s not someone you’d expect, it’s even someone who said: “What a bad game” when she saw me playing it. But nevertheless this Saturday she played it more than 2.5 hours!
I told Veronica I wanted...
Willem's Blog
Is the Apple Watch the modern tool watch?
I tested the Apple Watch during my work in Frankfurt this week where I had to go inside an internet...
over a year ago
I tested the Apple Watch during my work in Frankfurt this week where I had to go inside an internet data centre.
Arduino Blog
Controlling a drum machine with the Arduino Opta
Makers have long asked the question “why bother with an expensive PLC when I can just use an...
7 months ago
Makers have long asked the question “why bother with an expensive PLC when I can just use an Arduino?” The answer comes down to the priorities and needs of industrial clients. In a factory automation setting, the client will prioritize durability, reliability, and serviceability...
Willem's Blog
Offline Music
People sometimes act suprised when I tell them about my music hobby, manually converting CD's to...
over a year ago
People sometimes act suprised when I tell them about my music hobby, manually converting CD's to lossless audio files; there is some reason to this madness however!
Matt Mullenweg
Status Quo
I wrote over on WordPress.org about breaking the status quo with a Joost/Karim fork. It’s a perfect...
a week ago
I wrote over on WordPress.org about breaking the status quo with a Joost/Karim fork. It’s a perfect time as Automattic is re-focusing its work while the legal stuff is going on.
Yazin Alirhayim
The best bank in Bahrain … is Meem
Yes, that’s right. The best bank in Bahrain is … Meem. This nomination will be especially shocking...
over a year ago
Yes, that’s right. The best bank in Bahrain is … Meem. This nomination will be especially shocking to those of you that read my last post that ripped the Meem app to shreds.
Criteria for ‘best bank’
My criteria for “best bank” isn’t the best user experience or customer support....
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...
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...
Jonas Hietala
The current T-34 keyboard layout
I’ve been documenting my own keyboard layout in a series for a while now. But as the layout is...
over a year ago
I’ve been documenting my own keyboard layout in a series for a while now. But as the layout is constantly changing it’s been difficult to piece together how the layout currently looks like, so this post tries to show how the layout looks right now in it’s entirety.
If you want to...
./techtipsy
My attempt at archiving nfscars.net
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which...
over a year ago
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which later got “upgraded” to Windows 98 SE
after I managed to completely screw up the OS, a whopping 96MB of RAM and a hard drive that probably wasn’t much larger
than 1-3GB. It wasn’t...
Notes on software...
First few hurdles writing a Scheme interpreter
I started working on BSDScheme last October, inspired to get back
into language implementation after...
over a year ago
I started working on BSDScheme last October, inspired to get back
into language implementation after my coworker built bshift, a
compiler for a C-like language. BSDScheme is an interpreter for a
(currently small subset of) Scheme written in D. It implements a few
substantial...
seangoedecke.com RSS...
What can strong engineers do that weak engineers can't?
Right now people are blowing up on Twitter about whether the USA needs to import top talent from...
3 weeks ago
Right now people are blowing up on Twitter about whether the USA needs to import top talent from other countries, and if that means that…
Jonas Hietala
First impressions of Ghostty
There are two conflicting forces in play in setting up your computer environment:
It’s common to...
2 weeks ago
There are two conflicting forces in play in setting up your computer environment:
It’s common to find people get stuck at the extreme ends of the spectrum;
some programmers refuse to configure or learn their tools at all, while others get stuck re-configuring their setups...
Notes on software...
Delightful, production-grade replication for Postgres
This is an external post of mine. Click
here
if you are not redirected.
5 months ago
This is an external post of mine. Click
here
if you are not redirected.
Applied Cartography
Fathom
I'd been meaning to jot down some thoughts on Fathom for a while, and did not have a particularly...
a month ago
I'd been meaning to jot down some thoughts on Fathom for a while, and did not have a particularly good reason to do so until the news broke that Paul Jarvis was selling his share of the company to Jack Ellis, the technical co-founder. [1]
Anyway, the two thoughts:
I think Fathom...
Ian's Blog
Having a Website Used to Be Fun
According to the Wayback Machine, I launched my website over a decade ago, in 2013. Just that...
2 months ago
According to the Wayback Machine, I launched my website over a decade ago, in 2013. Just that thought alone makes me feel old, but going back through the old snapshots of my websites made me feel a profound feeling of longing for a time when having a website used to be a novel...
Engineers Need Art
Kim-1 User Manual
For sale: a few KIM-1 User Manuals I printed up.
a year ago
For sale: a few KIM-1 User Manuals I printed up.
Arduino Blog
Improve indoor air quality with Arduino
When we think about air quality and pollution, it’s easy to conjure up images of smog-filled cities...
8 months ago
When we think about air quality and pollution, it’s easy to conjure up images of smog-filled cities and power plants churning clouds of poison into the atmosphere. And while all this is still important, and has massive consequences for our health, it’s all too easy to overlook...
Neil Madden
Some incomplete thoughts about Gödel
I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve...
over a year ago
I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve wanted to write about for some time. Although many articles do a decent job in giving an idea of what the big deal is (and this one is pretty good), they can sometimes give a...
Louwrentius
Storage and I/O: reads vs. writes
There is a fundamental difference between a read operation and a write operation. Storage can lie...
over a year ago
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned.
About...
Ken Shirriff's blog
Wealth distribution in the United States
Forbes recently published the Forbes 400 List for 2024, listing the
400 richest people in the United...
3 months ago
Forbes recently published the Forbes 400 List for 2024, listing the
400 richest people in the United States.
This inspired me to
make a histogram to show the distribution of wealth in the United States.
It turns out that if you put Elon Musk on the graph,
almost the entire US...
Willem's Blog
Escaping the flat tires
Finding the answer to the question how resilient a puncture-proof tire really is took me quite some...
over a year ago
Finding the answer to the question how resilient a puncture-proof tire really is took me quite some time, but alas - here it is!
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...
8 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...
Abort Retry Fail
The History of OS/2
Getting a Divorce
a year ago
./techtipsy
Stupid project ideas: the War Machine
LinusTechTips has some pretty great videos about building
insane PC and server setups, such...
over a year ago
LinusTechTips has some pretty great videos about building
insane PC and server setups, such as:
unboxing and deploying petabytes of storage
7 gamers, 1 CPU
building sleeper PC-s
testing sketchy CPU-s
opening up a 100TB SSD
I have the ideas, but not the budget of LinusTechTips, so...
Willem's Blog
Improve your sleep by blocking light
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's...
over a year ago
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's quality. Read along for my findings!
Notes on software...
How I run a software book club
I've been running software book clubs almost continuously since last
summer, about 12 months ago. We...
7 months ago
I've been running software book clubs almost continuously since last
summer, about 12 months ago. We read through Designing Data-Intensive
Applications, Database
Internals,
Systems
Performance, and
we just started Understanding Software
Dynamics.
The DDIA discussions were...
Jonas Hietala
Ugly and Slow Progress
Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I...
over a year ago
Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I have an idea and it might be good, all I need to do is execute it. Right?
Programmer graphics coming to take you away!
Anyway it’s going to be a risk-like game with a twist: you can...
Matt Mullenweg
Automattic Alignment
Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine...
3 months ago
Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine filed a meritless lawsuit and Automattic responded, and there’s been a hurricane of public activity and press. Inside of Automattic, there’s been a parallel debate and process....
GitButler
Fixing up Git with Autosquash
How can you amend a series of commits automatically to keep a clean history? Let's take a look at...
10 months ago
How can you amend a series of commits automatically to keep a clean history? Let's take a look at git autosquash.
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 1: The Merge
3 months ago
computers are bad
2023-11-19 Centrex
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened...
a year ago
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened to "PBX" in today's world where the "automatic" is
implied. (Relatively) modern small and medium business PABXs of the type I like
to collect are largely solid-state devices that...
Electronics etc…
HP 8656A Signal Generator Schematics
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the...
11 months ago
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the schematics of chapter 8 are all spread over 3 or 4 pages, which makes
them hard to follow.
I spent a good evening extracting the schematics pages, cutting-and-pasting
them together...
./techtipsy
Things I've learned during my self-hosting adventure
This is a list of lessons that I’ve learned while playing around with my computer setup during the...
over a year ago
This is a list of lessons that I’ve learned while playing around with my computer setup during the last 6-7 years or so.
USB connected storage is a bad idea when you are using BTRFS.
USB connected storage is still a bad idea when you are using ZFS, but it is at least much more...
Arduino Blog
Enjoy a perpetual solar eclipse with this machine
Total solar eclipses are rare — at least from the perspective of any specific point on the planet. A...
6 months ago
Total solar eclipses are rare — at least from the perspective of any specific point on the planet. A total eclipse will occur somewhere on Earth once every 18 months or so, but that is more likely to track across the middle of the Pacific Ocean than wherever you happen to be....
Gwern.net Newsletter
December newsletter
December 2020 gwern.net newsletter with links on AI and technology; major new site feature:...
over a year ago
December 2020 gwern.net newsletter with links on AI and technology; major new site feature: fully-generalized recursive popups.
Home on Erik...
Machine, Platform, Crowd
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it...
over a year ago
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it mentions my blog – in particular the post When machine learning matters.
Ok, I lied a little bit. I didn't discover it serendipitously.
latest projects -...
POV Candle
[Hardware] Tiny volumetric display
a year ago
[Hardware] Tiny volumetric display
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...
a month 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 —
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...
watchTowr Labs
No Way, PHP Strikes Again! (CVE-2024-4577)
Orange Tsai tweeted a few hours ago about “One of [his] PHP vulnerabilities, which affects XAMPP by...
7 months ago
Orange Tsai tweeted a few hours ago about “One of [his] PHP vulnerabilities, which affects XAMPP by default”, and we were curious to say the least. XAMPP is a very popular way for administrators and developers to rapidly deploy Apache, PHP, and a bunch of other tools, and
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
7 months ago
Applied Cartography
PSA: mess around with Kolo
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with...
10 months ago
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with Buttondown — a process that I expected to take a couple hours on a lazy Sunday and in fact took ten minutes and three lines of code.
If you have a Django app, I think you should drop...
Arduino Blog
Use sound to trigger your camera’s flash with this DIY device
In the world of photography, the exposure triangle is immutable. To get a properly exposed photo...
3 months ago
In the world of photography, the exposure triangle is immutable. To get a properly exposed photo (not too bright or too dark), you need a balance of aperture size (how much light gets in), shutter speed (how long the light gets in), and ISO (sensitivity to light at the expense of...
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!
Louwrentius
Benchmarking a 1.44 MB floppy drive
I've used fio - a storage benchmarking tool - to benchmark a 1.44 MB floppy drive to gauge its...
over a year ago
I've used fio - a storage benchmarking tool - to benchmark a 1.44 MB floppy drive to gauge its random I/O performance. I have no real reason for doing this. I just thought it was funny.
I've run a benchmark against the floppy drives for different queue depths. The results are...
Louwrentius
Linux Software RAID benchmarking script
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use...
over a year ago
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use my
new benchmark script. I used this script to create these results.
You may need to configure some values within the header of this file to make
it fit your enviroment.
...
Simply Explained
EZStore: a tiny serverless datastore for IoT data (DynamoDB + Lambda)
I've been working on a few IoT projects recently, and while prototyping, I need a simple but...
over a year ago
I've been working on a few IoT projects recently, and while prototyping, I need a simple but flexible data store. I just want to push data to an API and query and visualize it later on.There are many solutions for this, but most are expensive or very limited. So I set out to...
seangoedecke.com RSS...
Crushing JIRA tickets is a party trick, not a path to impact
Don’t be a JIRA ticket zombie! I think a common experience among ambitious juniors - certainly I did...
a week ago
Don’t be a JIRA ticket zombie! I think a common experience among ambitious juniors - certainly I did this once - is to get frustrated at the…
Willem's Blog
Giving AI Training
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent...
a year ago
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent AI training session that's reshaping professional landscapes.
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...
Applied Cartography
Stripe Sessions 2024
Stripe held the keynote for Sessions, their annual WWDC/re:invent-esque conference, this morning. I...
9 months ago
Stripe held the keynote for Sessions, their annual WWDC/re:invent-esque conference, this morning. I wanted to jot down some thoughts while they’re still fresh. (I think the changelog is the best way to poke around both the changes I’m writing about and the ones that I...
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.
./techtipsy
ThinkPad as a server: the follow-up
It’s been a while since I last wrote about my ThinkPad T430 that was tasked with being a home...
a year ago
It’s been a while since I last wrote about my ThinkPad T430 that was tasked with being a home server.
After doing some experiments with my setup a couple of times, it is once again the main server for all my self-hosting
needs. However, this time I have made some...
Jonas Hietala
Death to the Forum
Well it was fun while it lasted, but now it’s gone and it’ll stay gone for a long time I think. It...
over a year ago
Well it was fun while it lasted, but now it’s gone and it’ll stay gone for a long time I think. It was mainly a test to see if I could do it and I’m really proud of my styling of it but it’s deader than in a grave, which isn’t really surprising, and it bothered me that I didn’t...
watchTowr Labs
Hop-Skip-FortiJump-FortiJump-Higher - Fortinet FortiManager CVE-2024-47575
It’s been a tricky time for Fortinet (and their customers) lately - arguably, even more so than...
2 months ago
It’s been a tricky time for Fortinet (and their customers) lately - arguably, even more so than usual. Adding to the steady flow of vulnerabilities in appliances recently was a nasty CVSS 9.8 vulnerability in FortiManager, their tool for central management of FortiGate...
Neil Madden
Parse, don’t type-check
There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to...
over a year ago
There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to any programmer (along with the more recent follow up Names are not type safety). The basic idea is that there are two ways to check that some input to a function is valid: A...
Jonas Hietala
Let's create a Tree-sitter grammar
One of my favorite features in Neovim is the Tree-sitter integration.
It allows for fast syntax...
10 months ago
One of my favorite features in Neovim is the Tree-sitter integration.
It allows for fast syntax highlighting that works well even in an error state (often the case when you’re editing code), and it has additional semantics (you can differentiate between function parameters and...
Home on Erik...
Iterate or die
Here's a conclusion I've made building consumer products for many years: the speed at which a...
over a year ago
Here's a conclusion I've made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed.
I don't even mean throughput here. I just mean the cycle time.
Louwrentius
ZFS RAIDZ expansion is awesome but has a small caveat
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The...
over a year ago
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The Github PR about this feature is rather stale and people are wondering what the status is and what the plans are. Meanwhile, FreeBSD has announced In February 2023 that they...
Home on Erik...
Giving more tools to software engineers: the reorganization of the factory
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe...
over a year ago
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe I'm an optimistic person, because my viewpoint is the complete opposite! I had my first job as a software engineer in 1999, and in the last two decades I've seen software engineering...
watchTowr Labs
Fortinet FortiGate CVE-2024-23113 - A Super Complex Vulnerability In A Super Secure Appliance In...
Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a...
3 months ago
Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a Format String vulnerability, unusually, in Fortinet's FortiGate devices.
It affected (before patching) all currently-maintained branches, and recently was highlighted by CISA as...
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...
Jonas Hietala
No game this month
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack...
over a year ago
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack inspiration and then it’s really hard to do something. Instead I’ve been thinking of something I could do that would make me wanna code like really bad again. I’m thinking of...
Jonas Hietala
Speeding Ahead
Life is slowly settling down over here. School has started with some pretty interesting stuff this...
over a year ago
Life is slowly settling down over here. School has started with some pretty interesting stuff this year. Firstly we have a math analysis course in multiple variables which is ok. I’m not a fan of the previous analysis courses but maybe this will be a bit different. We’re...
Matt Blewitt
Regular Restarts Are Good, Actually
Anecdotally, one of the more maligned features of the Heroku platform are the 24-hour limits on...
2 months ago
Anecdotally, one of the more maligned features of the Heroku platform are the 24-hour limits on compute units, known as “dynos”. This is actually a good thing, but very misunderstood.
Posts on Made of...
Tracking down a memory leak in Ruby's EventMachine
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services....
over a year ago
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services. Over the last several months, we’ve known that one such service suffered from a gradual memory leak, that would cause its memory usage to gradually balloon from a normal ~50MB to...
Willem's Blog
Back to the University
Join me on a special course exploring scientific programming, the perfect moment to learn Python...
a year ago
Join me on a special course exploring scientific programming, the perfect moment to learn Python with recent advancements in machine learning like ChatGPT!
Simply Explained
Year in review: 2022
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my...
over a year ago
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my YouTube channel and newsletter, but there are personal reflections in here as well. Last year was an off year for me, and I'm gearing up to make up for lost time in 2023.
Ian's Blog
Learn how Windows builds its store of trusted root CA certificates
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It...
over a year ago
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It might surprise you, and it certainly did for me, but out-of-the-box Windows doesn't come with a set of root CA certificates sufficient for web browsing.
You can see this for...
Louwrentius
IKEA $50 VINDSTYRKA vs. $290 Dylos air quality monitor
This is a brief article in which I compare the IKEA VINDSTYRKA $50 air quality monitor (PM2.5) with...
a year ago
This is a brief article in which I compare the IKEA VINDSTYRKA $50 air quality monitor (PM2.5) with a $290 air quality monitor made by Dylos to see if it's any good.
Context
If you care about indoor air quality, you may already own a CO2 to determine if it's time to ventilate...
Jonas Hietala
addwatch: resource exhausted
While tampering with Hakyll and running site preview I stumbled upon this error message:
site:...
over a year ago
While tampering with Hakyll and running site preview I stumbled upon this error message:
site: addWatch: resource exhausted (No space left on device)
At first I tried to clear /tmp but, so clearly the device did have some space left. After a bit of googling I found a solution...
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom...
4 months ago
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
Arduino Blog
Axiom is Arduino’s newest Gold Integration Partner!
Digital manufacturing consultancy and solutions provider, Axiom Manufacturing Systems, based in the...
7 months ago
Digital manufacturing consultancy and solutions provider, Axiom Manufacturing Systems, based in the United States, has recently joined our System Integrators Partnership Program. As Gold-level partners, Axiom will supercharge their mission – to empower manufacturers to rapidly...
Louwrentius
Is storage really that cheap?
Nowadays you can buy a 1 TB harddrive for less than 100 euro's . So I build
myself a 4 TB NAS box,...
over a year ago
Nowadays you can buy a 1 TB harddrive for less than 100 euro's . So I build
myself a 4 TB NAS box, which is already 50% full. However, although it is to
some degree fault-tollerant by using RAID 6, one mistake or catastrophic
hardware faillure and all data is lost.
And that's...
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
Construction Physics
Why Skyscrapers Became Glass Boxes
Everything put into the building that is unnecessary, every cubic foot that is used for purely...
a week ago
Everything put into the building that is unnecessary, every cubic foot that is used for purely ornamental purposes beyond that needed to express its use and to make it harmonize with others of its class, is a waste — is, to put it in plain English, perverting someone’s money —...
Gwern.net Newsletter
April 2021 newsletter
with links on AI scaling, particular new East Asian record-breaking work & deep reinforcement...
over a year ago
with links on AI scaling, particular new East Asian record-breaking work & deep reinforcement learning.
Arduino Blog
Get notified of impending floods with this Arduino Nano 33 IoT-based display
As climate change continues to worsen, events such as heavy rains, hurricanes, and atmospheric...
3 months ago
As climate change continues to worsen, events such as heavy rains, hurricanes, and atmospheric rivers have only intensified, and with them, large amounts of flooding that pose serious risks to life and property. Jude Pullen and Pete Milne, therefore, have responded by creating a...
Applied Cartography
Things take time
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi...
8 months ago
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi Nintendo & Co., LTD — was established nearly fifty years later, in 1933. They spent forty years selling playing cards, then another decade operating merely as a distributor of...
Neil Madden
Towards a standard for bearer token URLs
In XSS doesn’t have to be Game Over, and earlier when discussing Can you ever (safely) include...
over a year ago
In XSS doesn’t have to be Game Over, and earlier when discussing Can you ever (safely) include credentials in a URL?, I raised the possibility of standardising a new URL scheme that safely allows encoding a bearer token into a URL. This makes it more convenient to use lots of...
./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...
Lighthouse Blog
Rules improvement: filter based on content
a month ago
Willem's Blog
Updating Snake '97
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97...
over a year ago
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97 game. Read about the design challenges in this blog post.
Posts on Made of...
Distributed cloud builds for everyone
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous....
over a year ago
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous. All the major cloud providers offer generous free tiers, and services like GitHub Actions offer free compute resources to open-source repositories. So why do so many developers...
Buck on Software
Model transitions: A framework for value creation
And a quick and dirty look at SPLK, NTNX, and GWRE
over a year ago
And a quick and dirty look at SPLK, NTNX, and GWRE
Simply Explained
How WebP Images Reduced My Bandwidth Usage by 50%
Last year I migrated this website from Jekyll to Eleventy. This year, I’m finally implementing WebP...
over a year ago
Last year I migrated this website from Jekyll to Eleventy. This year, I’m finally implementing WebP images to save bandwidth and make this site even faster to load! This simple change reduced my bandwidth usage by 50% and is still backwards compatible with old devices and...
anderegg.ca
A look back at 2024, and what’s next for 2025
At the end of last year, I wrote about wanting to focus on the web in 2024. How did that shake...
3 weeks ago
At the end of last year, I wrote about wanting to focus on the web in 2024. How did that shake out?
Top level stats
I considered 2023 the first year that I honestly tried getting back into blogging. My goal then was to post something every month, and I managed that with 14 posts...
Vitalik Buterin's...
Exit games for EVM validiums: the return of Plasma
a year ago
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 1. lisp to assembly
Next in compiler basics:
2. user-defined functions and variables
3. LLVM
4. LLVM...
over a year ago
Next in compiler basics:
2. user-defined functions and variables
3. LLVM
4. LLVM conditionals and compiling fibonacci
5. LLVM system calls
6. an x86 upgrade
In this post we'll write a simple compiler in Javascript (on Node)
without any third-party libraries....
Louwrentius
'Linux: obtain motherboard model / type and vendor'
If you want to know what motherboard is installed in a system, use the tool
dmidecode:
dmidecode |...
over a year ago
If you want to know what motherboard is installed in a system, use the tool
dmidecode:
dmidecode | grep -e "Manufacturer|Product" | head -n 4 | tail -n 2
The result might be something like:
Manufacturer: ASUSTeK Computer INC.
Product Name: P5Q-EM DO
Manufacturer: ASUSTeK Computer...
Jonas Hietala
Habits to start
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or...
over a year ago
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or goals for this spring and I don’t have a clear vision of what to do currently but it also feels… fine? Maybe I will cruise in a lower gear for a while and rev up when my mood...
Jonas Hietala
Let's build a VORON: Smaller fixes
I’ve been busy.
Busy printing stuff.
Which is awesome, because one big worry I had was if I’d...
11 months ago
I’ve been busy.
Busy printing stuff.
Which is awesome, because one big worry I had was if I’d actually use the printer or just end up modding and tweaking it until the end of time.
But of course, I’ve been slowly working through my large mods-I-want list.
My initial plan was to...
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