Willem's Blog
Protecting VMware ESXi
In response to a possible security breach on a VMware ESXi host machine, I search for a way to...
over a year ago
In response to a possible security breach on a VMware ESXi host machine, I search for a way to improve security of the management console using NGINX and a firewall
Louwrentius
My experiences with DFS replication on Windows 2008 R2
If you are considering implementing DFS replication, consider using Windows 2012 R2 because DFS...
over a year ago
If you are considering implementing DFS replication, consider using Windows 2012 R2 because DFS replication has been massively improved. It supports larger data sets and performance has dramatically been improved over Windows 2008 R2.
I've implemented DFS replication to keep two...
Willem's Blog
Flying in a C47-A (DC-3) classic plane
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received,...
over a year ago
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received, experiencing aviation history unlike anything else!
Arduino Blog
This smart spice box makes cooking a breeze
Many people shy away from cooking because they’re overwhelmed by all of the different steps and...
7 months ago
Many people shy away from cooking because they’re overwhelmed by all of the different steps and ingredients. Recipes are useful, but they aren’t very intuitive to those who are more comfortable with visual thinking. To help these people enjoy the cooking experience, Purdue...
Jonas Hietala
Robot Project Start
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot....
over a year ago
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot. We’re gonna do battle with infrared lasers instead of axes but it might be fun anyway. Luckily for me I’m responsible for software and nothing harder than that! w00p!
We could...
Arduino Blog
Explore e-paper technology with Nano Matter and the new EPDK-Matter from Pervasive Displays
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for...
a month ago
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for Matter! This groundbreaking, self-contained kit is designed to revolutionize how smart home devices use e-paper displays, enhancing user experience while driving down energy...
Matt Mullenweg
Inc Hit Piece
When Inc Magazine reached out to have David H. Freedman (website powered by WordPress) write a...
a month ago
When Inc Magazine reached out to have David H. Freedman (website powered by WordPress) write a feature piece I was excited because though Inc wasn’t a magazine I have read much since I was a teenager, David seemed like a legit journalist who usually writes for better publications...
Engineers Need Art
VPX Scripting - Part 6 (End Sound)
This post wraps up the sound work on Teacher's Pet.
9 months ago
This post wraps up the sound work on Teacher's Pet.
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...
Jonas Hietala
The 4-Hour Chef: Scrambled Eggs
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to...
over a year ago
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to make changes and start doing new things. I got introduced to Josh Waitzkin’s excellent The Art of Learning and the meta skill of learning has since then fascinated me. So when I got...
Odds and Ends of...
Odds and Ends #48: The most important week of Labour government so far?
Plus a British tech unicorn, a nuclear energy ticking time bomb and... New Zealand's weird...
3 weeks ago
Plus a British tech unicorn, a nuclear energy ticking time bomb and... New Zealand's weird Parliament.
Vitalik Buterin's...
From prediction markets to info finance
2 months ago
Louwrentius
The future of ZFS now that OpenSolaris is dead
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very...
over a year ago
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very popular and very advanced Zetabyte File System (ZFS)
The only open source platform that actively supports ZFS is FreeBSD. And they
just 'copied' the code from OpenSolaris. Are they...
Arduino Blog
This UNO R4 WiFi-controlled device streamlines a restaurant’s online order system
Most successful restaurants operating today have to take advantage of online ordering, as a huge...
5 months ago
Most successful restaurants operating today have to take advantage of online ordering, as a huge chunk of customers have switched to takeout and delivery. But point-of-sale (POS) systems don’t always integrate well into a kitchen’s workflow and that can lead to missed orders —...
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...
Posts on Made of...
Security doesn't respect abstraction boundaries
The fundamental tool of any engineering discipline is the notion of abstraction. If we can build a...
over a year ago
The fundamental tool of any engineering discipline is the notion of abstraction. If we can build a set of useful, easily-described behaviors out of a complex system, we can build other systems on top of those pieces, without having to understand to worry about the full complexity...
Arduino Blog
Arduino IDE 2.3.3: discover new support for shared spaces and more!
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This...
3 months ago
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This new release is packed with improvements, including one feature we’re particularly proud of: support for shared spaces in Arduino Cloud. If you have a Cloud Business plan or School...
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....
Notes on software...
We put a distributed database in the browser – and made a game of it
This is an external post of mine. Click
here
if you are not redirected.
a year ago
This is an external post of mine. Click
here
if you are not redirected.
Arduino Blog
The web-based Arduino Lab for MicroPython Editor is out! With Chromebook support to code Alvik and...
We’re excited to announce the release of the web-based version of the Arduino Lab for MicroPython...
2 months ago
We’re excited to announce the release of the web-based version of the Arduino Lab for MicroPython Editor. This lightweight platform makes it even easier to code with MicroPython using Arduino hardware such as Alvik, Nano ESP32, Nano RP2040 Connect, Nano 33 BLE Sense – and more!...
Odds and Ends of...
We need more than Westminster reporters to understand government
Lobby correspondent hegemony is bad.
a month ago
Lobby correspondent hegemony is bad.
./techtipsy
Shrinkflation, SanDisk style
2023-02-16 update: this post is not about the “GB vs GiB” issue, or the “lost disk space” that...
a year ago
2023-02-16 update: this post is not about the “GB vs GiB” issue, or the “lost disk space” that you
notice after formatting the device in an OS. Please read the article in full before
making inaccurate comments online.
For many years, I have used two SanDisk Ultra 16 GB USB flash...
./techtipsy
Why you might not want to publicly self-host a Wikipedia clone
A while ago I wrote about how easy it is to download an archive of Wikipedia and host it...
a year ago
A while ago I wrote about how easy it is to download an archive of Wikipedia and host it anywhere
you want using Kiwix.
I’m still hosting Kiwix sites publicly, but here are a few things you might want
to consider before doing so yourself.
The spam
I have a specific e-mail address...
anderegg.ca
Jet Lag: The Game: The Game
Some fun news today from the creators of Jet Lag: The Game. They officially announced the next...
a month ago
Some fun news today from the creators of Jet Lag: The Game. They officially announced the next season, and also a “home version” of the game. I’ve written about Jet Lag: The Game before, so you might want to start there if you don’t know what I’m talking about.
On the latest...
Arduino Blog
Vintage rotary phone becomes stylish kitchen timer
It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three...
7 months ago
It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three minutes, knead the dough for 15 minutes, bake for 30 minutes, and so on. A timer is a necessity for cooking and baking, but there is no reason you need to use your phone or a...
Good Enough
That time Marvel secretly endorsed my podcast with “the greatest comic book cover of all time”
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a...
a year ago
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a record of this somewhere on the internet!” and I don’t have my own blog.
Years ago my friend and I ran a radio show called Gorilla Madness, which we also spun out into a podcast after...
Applied Cartography
buttondown.com/alternatives
Some kind words from Chris Krycho on Buttondown's Alternatives page:
This is how I want all my tools...
a month ago
Some kind words from Chris Krycho on Buttondown's Alternatives page:
This is how I want all my tools to be. There is a ton of room in these markets for healthy and friendly competition — and no need at all for winner-take-all or monopolist attitudes.
First off — credit where it's...
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...
Buck on Software
Crypto and Chasing the Dragon
Marc and Ben’s midlife crisis and the Crypto Crusades
over a year ago
Marc and Ben’s midlife crisis and the Crypto Crusades
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...
Lighthouse Blog
How to combine multiple RSS feeds in one view
7 months ago
Nabeel S. Qureshi
Notes on Karl Popper
A woven web of guesses
over a year ago
Vitalik Buterin's...
Why we need wide adoption of social recovery wallets
over a year ago
Jonas Hietala
Fixing Problems
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a...
over a year ago
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a nice thread with a great answer. I solved it by forcefully patching libflashplayer.so
perl -pi.bak -e 's/libvdpau/lixvdpau/g' libflashplayer.so
Worked perfectly!
I fixed the...
Jonas Hietala
2014 Read Books
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin...
over a year ago
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin Moran
Fun!
The Kill Room - Jeffery Deaver
A Song of Ice and Fire: Game of Thrones - George R.R. Martin
Reread.
A Song of Ice and Fire: A Clash of Kings - George R.R. Martin
Reread.
A...
Home on Erik...
Nearest neighbor methods and vector models – part 1
This is a blog post rewritten from a presentation at NYC Machine Learning last week. It covers a...
over a year ago
This is a blog post rewritten from a presentation at NYC Machine Learning last week. It covers a library called Annoy that I have built that helps you do (approximate) nearest neighbor queries in high dimensional spaces.
Jonas Hietala
The first (worst) post
Well, here it is: The opening post. What will come here? Here’s where I’ll outline what the blog...
over a year ago
Well, here it is: The opening post. What will come here? Here’s where I’ll outline what the blog will be about and maybe, if I’m dedicated, it won’t die before Christmas you think.
And sure, you’re right. I will run away to the corner in about two and a half months crying I never...
Neil Madden
The square roots of all evil
Every programmer knows Donald Knuth’s famous quote that “premature optimization is the root of all...
a month ago
Every programmer knows Donald Knuth’s famous quote that “premature optimization is the root of all evil”, from his 1974 Turing Award lecture (pdf). A fuller quotation of the surrounding context gives a rounder view: I am sorry to say that many people nowadays are condemning...
Louwrentius
Unattended automatic installation of Linux nvidia binary driver
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver....
over a year ago
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver. This is a manual proces by default. However, it can be
done fully automatic:
prerequisite: install xserver-xorg-dev package or similar xorg development
package.
sh NVIDIA-.run -q...
Arduino Blog
Track the location history of your devices in Arduino Cloud IoT dashboards
Asset tracking has become increasingly crucial across various industries and applications. Whether...
7 months ago
Asset tracking has become increasingly crucial across various industries and applications. Whether you’re a logistics company monitoring your fleet, a conservation organization tracking wildlife, or an individual passionate about outdoor adventures, the ability to track and...
Applied Cartography
11ty
.njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a...
11 months ago
.njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a good amount. Maybe that's a me thing!
It is extremely fast. This site has around 2300 pages; Eleventy is compiling it in around two seconds.
The extensibility ergonomics are...
lcamtuf’s thing
Dispatches from the farm upstate
Middle-aged computer expert opts to escape civilization, offers dubious life advice.
5 months ago
Middle-aged computer expert opts to escape civilization, offers dubious life advice.
Vitalik Buterin's...
The Most Important Scarce Resource is Legitimacy
over a year ago
Ken Shirriff's blog
Reverse-engineering a carry-lookahead adder in the Pentium
Addition is harder than you'd expect, at least for a computer.
Computers use multiple types of adder...
17 hours ago
Addition is harder than you'd expect, at least for a computer.
Computers use multiple types of adder circuits with different tradeoffs of size versus speed.
In this article, I reverse-engineer an 8-bit adder in the Pentium's floating point unit.
This adder turns out to be a...
Neil Madden
A controversial opinion about REST API design
I was just reading yet another article on REST API design guidelines. Some of it is good advice,...
a year ago
I was just reading yet another article on REST API design guidelines. Some of it is good advice, some of it I could quibble with. But several of the rules are about how to design the path hierarchy of your API: use plural nouns, don’t use nested sub-paths unnecessarily, etc. In...
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.
Simply Explained
Building Air Quality Sensor: Luftdaten + Home Assistant
Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the...
over a year ago
Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the world. Best of all: it's open-source and anyone can build a sensor.I was very curious to see the air quality in my neighborhood, so I decided to build myself a sensor. And of course,...
latest projects -...
Badge
[Hardware] A RISC-V LED matrix
a year ago
[Hardware] A RISC-V LED matrix
Simply Explained
Smart lights behind a wall switch (Shelly + ESPHome)
Using smart light bulbs means you can no longer use your physical wall switches because the bulbs...
over a year ago
Using smart light bulbs means you can no longer use your physical wall switches because the bulbs need constant power. I think that's pretty dumb. Using a physical switch can be way faster than using an app to control the lights.Here's how you can put a Shelly in between the...
Computer Ads from...
Page 6 Magazine Interviews the Godfather of Adventure Games, Scott Adams
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
5 months ago
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
Arduino Blog
Self-leveling workbench can travel without trouble
An actually level workbench is critical for many different jobs, such as pouring resin or...
7 months ago
An actually level workbench is critical for many different jobs, such as pouring resin or calibrating sensors. But it is difficult enough to level a stationary workbench and that becomes a nightmare for a workbench that needs to roll around a shop on casters, as shop floors...
Louwrentius
'Gzip with parallel compression support: pigz'
The speed at which files are compressed with gzip is currently almost always
determined by the speed...
over a year ago
The speed at which files are compressed with gzip is currently almost always
determined by the speed of the CPU. However, standard unix gzip is single-
threaded and only uses a single CPU (core).
However, the maintainer of the zlib library has released 'pigz' or 'pig-zee'
whichs...
Louwrentius
Linode hacked: thoughts about cloud security
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of...
over a year ago
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of existing users regarding the Linode management console.
Resetting passwords is not something you do when under a simple attack such as a DDOS attack. Such a measure is only taken...
Style over Substance
Adding night shading to a Home Assistant mini-graph-card chart
One of my favorite Lovelace interface cards for Home Assistant is the mini-graph-card by kalkih....
over a year ago
One of my favorite Lovelace interface cards for Home Assistant is the mini-graph-card by kalkih. It’s the card running most of the graphs in our smart home‘s dashboard. Surprisingly, mini-graph card is actually not included in Home Assistant by default – honestly, it should be,...
Home on Erik...
I believe in the 10x engineer, but...
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be...
over a year ago
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be a 10x engineer if they do nothing for 364 days then convinces the team to change programming language to a 2x more productive language.
Applied Cartography
Postgres batch enqueuing in ten lines of Django
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count =...
a year ago
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count = queryset.count()
if count == 0:
time.sleep(10)
return
with transaction.atomic():
batch = list(
queryset.select_for_update(of=("self",),...
Christian Selig
Choosing a travel pack is hard
I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines...
8 months ago
I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines losing your stuff. Outside of requiring a bit more planning, what’s not to love?
Turns out this is a beloved product category with a passionate community behind it, and as a result...
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...
Simply Explained
Howto Virtualize Unraid on a Proxmox host
Here's how to run Unraid as a virtual machine under Proxmox. This is useful when you're already...
over a year ago
Here's how to run Unraid as a virtual machine under Proxmox. This is useful when you're already using Proxmox and if you want to use Unraid as a NAS.
Applied Cartography
Two weeks of parenthood
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about...
3 months ago
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about parenthood. (In all seriousness, consider the below descriptive and not prescriptive: mostly, it's a notepad filled with things that were remarkable or surprising or divergent from...
Engineers Need Art
VPX Scripting - Part 3 (Cut & Paste)
Sound code is added in this third in a series of posts about scripting Visual Pinball tables.
9 months ago
Sound code is added in this third in a series of posts about scripting Visual Pinball tables.
Louwrentius
Why I still won't switch to Linux and keep my Mac
The current state of Linux is amazing. If we take a look at, for example,
Ubuntu Linux, we have to...
over a year ago
The current state of Linux is amazing. If we take a look at, for example,
Ubuntu Linux, we have to admit that the Linux desktop is really becoming a
nice, user-friendly environment. I'm truly starting to like what I see. I
considered whiping Mac OS X from my macbook, but there...
Vitalik Buterin's...
7ème tour des subventions Gitcoin - Rétrospective
over a year ago
Arduino Blog
You can now work in collaboration in Arduino Cloud
In today’s busy world, getting students or engineers to work together is key to tackling complex IoT...
4 months ago
In today’s busy world, getting students or engineers to work together is key to tackling complex IoT projects. Traditional code sharing and editing methods, like using offline IDEs or swapping files manually, often slow down projects and lead to mistakes. This can be a hassle and...
Willem's Blog
Outside the comfort zone: amateur acting
This month I strapped myself with sensors during a little experiment outside my comfort zone: I...
over a year ago
This month I strapped myself with sensors during a little experiment outside my comfort zone: I debuted as amateur actor!
Posts on Made of...
Check Plus: An EDSL for writing unit tests in C
Check is an excellent unit-testing framework for C code, used by a number of relatively well-known...
over a year ago
Check is an excellent unit-testing framework for C code, used by a number of relatively well-known projects. It includes features such as running all tests in separate address spaces (using fork(2)), which means that the test suite can properly report segfaults or similar crashes...
./techtipsy
No HDMI port on the ThinkPad T430? No problem!
The ThinkPad T430 has a few options for running it with an external display:
VGA port, which is...
6 months ago
The ThinkPad T430 has a few options for running it with an external display:
VGA port, which is pretty much obsolete at this point
mini DisplayPort connector on the laptop itself
DVI or DisplayPort on a dock
The mini DisplayPort port has annoyed me for as long as I’ve had this...
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
Willem's Blog
Enjoy a festival without alcohol
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during...
over a year ago
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during the music festival.
Notes on software...
A write-ahead log is not a universal part of durability
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its...
6 months ago
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its long-term data structure durably
to disk before returning to a client. Granted, this is a bad idea! And
granted, a WAL is critical for durability by design in most
databases. But I...
Simply Explained
Shelly 2.5 + ESPHome: potential fire hazard + fix
If you have flashed your Shelly 2.5 with ESPHome, make sure to configure GPIO16. Otherwise, the pin...
over a year ago
If you have flashed your Shelly 2.5 with ESPHome, make sure to configure GPIO16. Otherwise, the pin will be short-circuited and cause the unit to heat up significantly, creating a potential fire hazard!
Home on Erik...
It's called Berkson's paradox!
As noted by multiple tweets, my previous post describes a phenomenon denoted Berkson's...
over a year ago
As noted by multiple tweets, my previous post describes a phenomenon denoted Berkson's paradox.
Here's another example: Why Are Handsome Men Such Jerks?
Nabeel S. Qureshi
Films + Books, Q1 2023
What I watched and read
a year ago
computers are bad
2024-12-11 travelers information stations
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For...
a month ago
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For historic reasons, WBCT of Grand Rapids, Michigan
broadcasts FM at 320¸000 watts. Many AM stations are licensed to operate at
50,000 watts, but this modern license limit represented a...
Arduino Blog
Alumnus Software joins Arduino’s System Integrators Partnership Program
We are thrilled to announce that Alumnus Software, based in India and the United States, has joined...
2 months ago
We are thrilled to announce that Alumnus Software, based in India and the United States, has joined our System Integrators Partnership Program (SIPP) at the Gold level. With over 20 years of expertise in embedded software, IoT applications, and Edge AI development, Alumnus has a...
lcamtuf’s thing
The untimely demise of an image upscaler
ML-based image enhancement models are great. Unfortunately, some of them are great only once.
4 months ago
ML-based image enhancement models are great. Unfortunately, some of them are great only once.
Jonas Hietala
rustc: error while loading shared libraries: librustc_driver
I had installed and used rust already but today I fired it up and received:
rustc...
over a year ago
I had installed and used rust already but today I fired it up and received:
rustc --version
rustc: error while loading shared libraries: librustc_driver-7e44814b.so: cannot open shared object file: No such file or directory
I’ve seen this before… I thought modifying...
Notes on software...
Walking through a basic Racket web service
Racket is an impressive language and ecosystem. Compared to Python,
Racket (an evolution of Scheme...
over a year ago
Racket is an impressive language and ecosystem. Compared to Python,
Racket (an evolution of Scheme R5RS is three years younger. It is
as concise and expressive as Python but with much more reasonable
syntax and semantics. Racket is also faster in many cases due in part
to:
JIT...
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...
Louwrentius
Compiling Handbrake CLI on Debian Lenny
In this post I will show you how to compile Handbrake for Debian Lenny. Please
note that although...
over a year ago
In this post I will show you how to compile Handbrake for Debian Lenny. Please
note that although the Handbrake GUI version does compile on Lenny, it crashes
with a segmentation fault like this:
Gtk: gtk_widget_size_allocate(): attempt to allocate widget with width -5
and height...
Vitalik Buterin's...
Should there be demand-based recurring fees on ENS domains?
over a year ago
Neil Madden
When a KEM is not enough
In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation...
over a year ago
In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation mechanism is given the recipient’s public key and outputs a fresh AES key and an encapsulation of that key that the recipient can decapsulate to recover the AES key. In this post I...
computers are bad
2024-11-23 cablesoft
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful...
a month ago
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful teletext services in the UK and Europe. "Teletext" is
sometimes a confusing term because of its apparent relation to telecom-industry
technologies like the teletypewriter and...
Louwrentius
Why I Do Use ZFS as a File System for My NAS
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system...
over a year ago
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system for my 18 TB NAS.
You have to understand that at the time, I believe the arguments in the article were relevant, but much has changed since then, and I do believe this article is...
Vitalik Buterin's...
Hard Forks, Soft Forks, Defaults and Coercion
over a year ago
Louwrentius
20 disk 18 TB RAID 6 storage based on Debian Linux
This system is no longer operational and has been decomissioned (2017)
This is my NAS storage server...
over a year ago
This system is no longer operational and has been decomissioned (2017)
This is my NAS storage server based on Debian Linux. It uses software RAID and 20 one
terrabyte hard drives. It provides a total usable storage capacity of 18 terrabytes in a single RAID 6 array.
One of the...
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...
Posts on Made of...
reptyr: Changing a process's controlling terminal
reptyr (announced recently on this blog) takes a process that is currently running in one terminal,...
over a year ago
reptyr (announced recently on this blog) takes a process that is currently running in one terminal, and transplants it to a new terminal. reptyr comes from a proud family of similar hacks, and works in the same basic way: We use ptrace(2) to attach to a target process and force...
Notes on software...
Favorite compiler and interpreter resources
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.
Odds and Ends of...
Four big US election takes: Yes, it was the woke stuff.
Plus how to know when the Democrats are taking their problems seriously, the one good thing Trump...
2 months ago
Plus how to know when the Democrats are taking their problems seriously, the one good thing Trump might do, and why the polls were right
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.
Jonas Hietala
Food vacation in Japan
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of...
over a year ago
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of pictures, but I ended up sending a bunch back home as a ways of keeping my family up to date. When I look back most of them are about food… So I’ll turn this into a post about the...
Vitalik Buterin's...
An incomplete guide to stealth addresses
over a year ago
Notes on software...
Tail call elimination
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated...
over a year ago
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated in an interpreter, a compiler targeting
C++, and a compiler targeting LLVM IR.
Tail calls
A tail call is a function call made at the end of a block that
returns the value of the...
Jonas Hietala
The T-34/2 keyboard layout
The T-34/2 layout.
QMK Heatmap Generator, with all layers and combos.
It’s been 6 months since my...
over a year ago
The T-34/2 layout.
QMK Heatmap Generator, with all layers and combos.
It’s been 6 months since my last update on the T-34 keyboard layout, and I’ve made some changes I’d like to document here.
As seen in the heatmap above, the layout seems quite decent. There’s still an issue...
Ken Shirriff's blog
Antenna diodes in the Pentium processor
I was studying the silicon die of the Pentium processor and noticed some puzzling structures...
a month ago
I was studying the silicon die of the Pentium processor and noticed some puzzling structures where
signal lines were connected to the silicon substrate for no apparent reason.
Two examples are in the photo below, where the metal wiring (orange) connects to small square regions of...
Home on Erik...
Installing TensorFlow on AWS
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some...
over a year ago
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some time getting it to run on EC2. The steps on how to reproduce it are pretty brutal and I wouldn't recommend going through it unless you want to waste five hours of your live.
Jonas Hietala
Christmas break
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and...
over a year ago
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and I really enjoy studying here. We had lisp the whole time which is a pretty sweet little language and if you haven’t, give it a shot. Then we had math and I do like math, although I...
computers are bad
2023-04-30 los alamos - compound to county pt II
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly...
a year ago
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly administered by the Atomic Energy Commission (AEC).
The Atomic Energy Communities Act (AECA) mandated the AEC to dispose of the
towns it owned by transferring the property to private...
Jonas Hietala
Default audio card in linux
There are a bunch of posts about making your audio work by default in Linux but none that just...
over a year ago
There are a bunch of posts about making your audio work by default in Linux but none that just worked for me.
I had three separate problems:
Getting sound
Playing sound from multiple sources at the same time
Audio card getting different numbers on reboot
Getting sound
Here I...
Good Enough
Good Enough Marketing: The Preparation
We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But...
a year ago
We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But that’s a difficult task for us because, honestly, we’re terrible not good at self-promotion. We’d rather spend time making things than talking about the things we’ve made.
We’d...
Louwrentius
HP Proliant Microserver N40L is a great NAS or Router
Update 2012-12-11: It seems that a new and faster version is on the horizon.
Update 2012-12-21:...
over a year ago
Update 2012-12-11: It seems that a new and faster version is on the horizon.
Update 2012-12-21: Yes, the new model G7 N54L is out.
Some products seem almost too good to be true and I think the HP Proliant Microserver N40L is one of them. If you are into the market for a very...
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
Ludum Dare 22 results!
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was...
over a year ago
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was quite happy with it.
#24 Community 3.71
#40 Fun 3.38
#49 Theme 3.69
#65 Overall 3.42
#95 Humor 2.82
#167 Mood 2.92
#247 Innovation 2.69
#338 Audio 2.23
#340 Graphics 2.62
#376...
Vitalik Buterin's...
Degen communism: the only correct political ideology
9 months ago
Willem's Blog
Saving a MacBook Air with exploded battery
Saving a MacBook Air with a swollen battery pack.
over a year ago
Saving a MacBook Air with a swollen battery pack.
./techtipsy
Quest towards energy efficiency part 1: the water heater
While listening to the SelfHosted podcast, one of the hosts brought up their peculiar...
over a year ago
While listening to the SelfHosted podcast, one of the hosts brought up their peculiar living
arrangement multiple times. Essentially, he and his family are living in an RV that runs off of batteries, has solar
panels, utilizes Home Assistant for automation, supports multiple...
Applied Cartography
Content debt
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis,...
6 months ago
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis, handbooks, etc.) to the public as a bit of a marketing push. This is essentially a form of debt, to the extent that you’re taking a lump-sum payment now in exchange for the implicit cost...
Ken Shirriff's blog
Two interesting XOR circuits inside the Intel 386 processor
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a...
a year ago
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching to a CMOS implementation.
I've been reverse-engineering parts of the 386 chip and came across two interesting and completely different
circuits...
Posts on Made of...
Using Haskell's 'newtype' in C
A common problem in software engineering is avoiding confusion and errors when dealing with multiple...
over a year ago
A common problem in software engineering is avoiding confusion and errors when dealing with multiple types of data that share the same representation. Classic examples include differentiating between measurements stored in different units, distinguishing between a string of HTML...
Posts on Made of...
Thoughts On Kubernetes
I spent a while the last week porting livegrep.com from running directly AWS to running on...
over a year ago
I spent a while the last week porting livegrep.com from running directly AWS to running on Kubernetes on Google’s Cloud Platform (specifically, the google container engine, which provisions and manages the cluster for me).
I left this experience profoundly enthusiastic about the...
watchTowr Labs
Backdooring Your Backdoors - Another $20 Domain, More Governments
After the excitement of our .MOBI research, we were left twiddling our thumbs. As you may recall, in...
a week ago
After the excitement of our .MOBI research, we were left twiddling our thumbs. As you may recall, in 2024, we demonstrated the impact of an unregistered domain when we subverted the TLS/SSL CA process for verifying domain ownership to give ourselves the ability to issue valid and...
Vitalik Buterin's...
My 40-liter backpack travel guide
over a year ago
Home on Erik...
The number of letters in the word for each number
Just for fun, I generated these graphs of the number of letters in the word for each number. I...
over a year ago
Just for fun, I generated these graphs of the number of letters in the word for each number. I really spent about 10 minutes on this (ok…possibly also another 40 minutes tweaking the plots):
More languages!
Jonas Hietala
Ludum Dare 22 Here I Come
The time has finally come. After more than three hours of exam writing, and almost double spent on...
over a year ago
The time has finally come. After more than three hours of exam writing, and almost double spent on studying for it, I am now ready to declare my entry into Ludum Dare 22! I’ve been away far too long, with my entries for the 17th and the 20th dare being almost a century away, the...
Arduino Blog
Using Arduino UNO to sync a visual neuroscience lab
Common research methods to study the visual system in the laboratory include recording and...
2 months ago
Common research methods to study the visual system in the laboratory include recording and monitoring neural activity in the presence of sensory stimuli, to help scientists study how neurons encode and respond, for example, to specific visual inputs. One of the biggest technical...
Good Enough
Our Favorite Video Games Right Now
While everyone at Good Enough is their own kind of nerd, thank you very much, as builders of the web...
a year ago
While everyone at Good Enough is their own kind of nerd, thank you very much, as builders of the web you probably expect that we also play video games. And we do! Well, collectively we do, but not to an unhealthy degree. Usually.
I asked the team to share with me what their...
Matt Mullenweg
My Freedom of Speech
WP Engine has filed hundreds pages of legal documents seeking an injunction against me and...
3 months ago
WP Engine has filed hundreds pages of legal documents seeking an injunction against me and Automattic. They say this is about community or some nonsense, but if you look at the core, what they’re trying to do is ask a judge to curtail my First Amendment rights. The First...
computers are bad
2023-11-25 the curse of docker
I'm heading to Las Vegas for re:invent soon, perhaps the most boring type of
industry extravaganza...
a year ago
I'm heading to Las Vegas for re:invent soon, perhaps the most boring type of
industry extravaganza there could be. In that spirit, I thought I would write
something quick and oddly professional: I'm going to complain about Docker.
Packaging software is one of those fundamental...
Arduino Blog
This frighteningly realistic animatronic head features expressive silicone skin
The human face is remarkably complex, with 43 different muscles contorting the skin in all kinds of...
a month ago
The human face is remarkably complex, with 43 different muscles contorting the skin in all kinds of ways. Some of that is utilitarian — your jaw muscles are good for chewing, after all. But a lot of it seems to be the result of evolution giving us fantastic non-verbal...
Computer Ads from...
Plus Post: Lobo MAX-80
The Computer Tandy Should Have Built (at least according to the ad).
10 months ago
The Computer Tandy Should Have Built (at least according to the ad).
somenice
Matter as a Smart home standard
Matter is the name of the smart home standard that promises to bridge IOT devices and different home...
9 months ago
Matter is the name of the smart home standard that promises to bridge IOT devices and different home eco-systems. Amazon Alexa, Google Home, Apple Homekit, Samsung SmartThings, etc. To prevent 6+ flavours of smart lightbulbs working with 6+ different apps, a standard needed to be...
Arduino Blog
Bringing Quake to Arduino: a game-changing project by Nicola Wrachien
Following up on his successful Doom port last year, engineer Nicola Wrachien – who works at Silicon...
3 months ago
Following up on his successful Doom port last year, engineer Nicola Wrachien – who works at Silicon Labs, a leader in secure, intelligent wireless technology for a more connected world and long-time Arduino partner – has now tackled an even bigger challenge: porting Quake, the...
Jorge Arango
A Crash Course in the Humanities
My education has lots of gaps. “Youth is wasted on the young” is an apt cliché: I wasted lots of...
2 weeks ago
My education has lots of gaps. “Youth is wasted on the young” is an apt cliché: I wasted lots of opportunities as a young person. After graduation, I committed to ongoing learning. Alas, it’s been scattered and undirected. This year, I’m doing something about it: immersing myself...
Posts on Made of...
Running Tensorflow on AWS GPUs
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that...
over a year ago
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that project I wanted to be able to train models using GPUs on EC2. This post contains some notes on what it took to get that working. As many people have commented, the environment setup...
Willem's Blog
Limitations of sleep tracking using a wearable
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
over a year ago
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
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...
Simply Explained
Analyzing Link Rot in My Newsletter (After 31 Editions)
I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to...
a year ago
I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to interesting articles related to science and technology. I thought it would be interesting to analyze how many of those links are still accessible, and how many have succumbed to link rot....
Arduino Blog
This automatic laser turret keeps the cats entertained for hours
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their...
3 months ago
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their cats indoors to avoid decimating the local wildlife population and that means Mr. Whiskers and Ms. Socks don’t get much opportunity to express their hunting urges. That’s why...
Jonas Hietala
Reinstalling Slackware
So I reinstalled slackware on my machine and decided to take some rough notes of the most important...
over a year ago
So I reinstalled slackware on my machine and decided to take some rough notes of the most important steps I made. I did not document the steps in detail, and some are very specific for my setup. But maybe it can be useful for someone, or myself.
Basic steps
Make slackware usb...
Louwrentius
Finding a good blu-ray player for Mac OS X
I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these...
over a year ago
I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these free open-source products are all a usability nightmare.
To play a Blu-ray movie, you have to perform these steps:
right-click on the BDMV file
choose 'show packet contents'
go to...
Neil Madden
I still don’t really get “hash shucking”
If you want to learn how to store passwords securely, you could do a lot worse than looking at the...
a year ago
If you want to learn how to store passwords securely, you could do a lot worse than looking at the OWASP Password Storage Cheat Sheet. These cheat sheets are generally pretty good, and the password storage one is particularly good. The editors do a great job of keeping it up to...
Lighthouse Blog
Updates November 17: Content classification and summary
a year 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...
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.
./techtipsy
I held a talk about my self-hosting adventure!
There are two reasons why I haven’t written much lately, and one of them is that I was cooking up...
a year ago
There are two reasons why I haven’t written much lately, and one of them is that I was cooking up a
talk about self-hosting, more specifically my own self-hosting adventure (the other one is the Steam Deck, more about
that in the future).
The talk took place on May 25th 2023 at...
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...
anderegg.ca
Trying out GoodLinks
The weeks leading up to the holidays have been hectic. I’m behind on “internet stuff” since entering...
3 weeks ago
The weeks leading up to the holidays have been hectic. I’m behind on “internet stuff” since entering Christmas-mode, and have been looking for a better way to capture things I want to look at later. I’ve had this issue before, but solved it in an ad-hoc way. Previously I’d made...
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...
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
11 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Louwrentius
Why filtering DHCP traffic is not always possible with iptables
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all...
over a year ago
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all input, forward and output traffic was dropped, DHCP
traffic to and from my DHCP server was not blocked even if there were no
rules permitting this traffic.
I even flushed all rules,...
Neil Madden
CVE-2022-21449: Psychic Signatures in Java
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to...
over a year ago
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to get out of trouble by showing an identity card which is actually completely blank. Of course, this being Doctor Who, the card is really made out of a special “psychic paper“, which...
Jonas Hietala
Sat-E
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme...
over a year ago
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme this time around was Alone and the game I came up with is about a lonely satellite in space, kinda like Wall-E.
Sat-E
Instructions
Collect junk and other items for you to buy...
computers are bad
2024-05-25 grc spinrite
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean,...
7 months ago
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean, like, back in high school. These days I almost never do,
or on the occasion that I have storage trouble, it's a drive that has
completely stopped responding at all and there's...
Christian Selig
Trials and Tribulations of Making an Interruptable Custom View Controller Transition on iOS
I think it’s safe to say while the iOS custom view controller transition API is a very powerful one,...
over a year ago
I think it’s safe to say while the iOS custom view controller transition API is a very powerful one, with that power comes a great deal of complexity. It can be tricky, and I’m having one of those days where it’s getting the better of me and I just cannot get it to do what I want...
Home on Erik...
We are still early with the cloud: why software development is overdue for a change
This is is in many respects a successor to a blog post I wrote last year about what I want from...
over a year ago
This is is in many respects a successor to a blog post I wrote last year about what I want from software infrastructure, but the ideas morphed in my head into something sort of wider.
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...
Louwrentius
Setting up a Jabber instant messaging server |_http-title: Site doesn't have a title (text/html;...
I wanted to see how dificult it is to setup an instant messaging server based on open source...
over a year ago
I wanted to see how dificult it is to setup an instant messaging server based on open source software. Now I know that it is very easy, unless you are stubborn and do things your own way. In this example, I'm setting up a small IM server that is only for internal company use, but...
Louwrentius
WFS - WAN Failover Script now available
Since I could not find a WAN failover script for Linux to my likening, I wrote
one myself. If you...
over a year ago
Since I could not find a WAN failover script for Linux to my likening, I wrote
one myself. If you have any use for it: I put it on a Google code project.
WFS tests the availability of your primary WAN connection and switches to your
secondary / backup connection when a failure is...
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.
Notes on software...
Build a serverless ACID database with this one neat trick (atomic PutIfAbsent)
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability,...
3 months ago
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability, and the number of open-source
implementations, it's quickly becoming the DuckDB of serverless
transactional databases for analytics workloads. Iceberg is a
contender too, and is...
./techtipsy
Monitoring energy usage with smart plugs, Prometheus and Grafana
This post isn’t a detailed line-by-line tutorial on how to set up each individual piece of the setup...
8 months ago
This post isn’t a detailed line-by-line tutorial on how to set up each individual piece of the setup as those types of
guides tend to get out of date really easily, but if you know your way around Linux and the command line, then you can
definitely replicate this setup on your...
Jonas Hietala
Resurrection
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not...
over a year ago
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
./techtipsy
Steam Deck: I like it
I got a Steam Deck.
Only took me a year or so of contemplating getting
one, and trying out HoloISO,...
7 months ago
I got a Steam Deck.
Only took me a year or so of contemplating getting
one, and trying out HoloISO, the unofficial SteamOS installer
finally convinced me to get one.1
It took another year to actually get down to writing down my thoughts on it.
This post is written from the...
Willem's Blog
Multi-Window support in your iPad app
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI...
over a year ago
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI concepts enabling different use cases for your app.
Abort Retry Fail
The History of Windows 98
Echoes of an Explosion
a year ago
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...
Arduino Blog
This DIY smart chicken coop features AI-based predator detection
Raising chickens can be a very rewarding endeavor, as they can provide fresh daily eggs and help get...
2 months ago
Raising chickens can be a very rewarding endeavor, as they can provide fresh daily eggs and help get rid of pests in the yard. But, like all animals, they require care. Most importantly, you’ll need to ensure that they have regular food and water, and you’ll need to protect them...
Vitalik Buterin's...
[Mirror] Central Planning as Overfitting
over a year ago
Neil Madden
Why the OAuth mTLS spec is more interesting than you might think
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the...
over a year ago
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the episode with Colm MacCárthaigh about a bunch of topics around TLS. It’s a great episode that touches a lot of subjects I’m interested in, so go ahead and listen to it if you...
Good Enough
TIL: Use touch-action: manipulation; to avoid double-tap-to-zoom
Recently we built and launched A Good Enough Guestbook, a place where you can send us doodles and...
a year ago
Recently we built and launched A Good Enough Guestbook, a place where you can send us doodles and they’ll print out on our little printer. It’s quite lovely and fun, and you should send us a doodle. We might also have more in store for these printers in the future.
In the...
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...
Applied Cartography
Keeping a technical edge
Someone emailed me in response to Two years as an independent technologist, in which I wrote:
I miss...
4 months ago
Someone emailed me in response to Two years as an independent technologist, in which I wrote:
I miss of being at a large company, which is dealing with deeply cutting-edge technical problems, but my ability to analyze information, make decisions, and perform at a high-level has...
seangoedecke.com RSS...
Porting and hacking Llama2.c for fun and profit
Over the last few weeks I’ve been playing around with the excellent llama2.c repository, which is...
a year ago
Over the last few weeks I’ve been playing around with the excellent llama2.c repository, which is basically a simple one-file C…
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
6 months ago
Birchtree
All the games I played in 2024, reviewed
I love movies, but I really love games as well, so I figured I may as well follow up my 2024 movies...
a month ago
I love movies, but I really love games as well, so I figured I may as well follow up my 2024 movies of the year post with something similar for games. I’m not going to rank these, but I’ll give a few words on each one
Buck on Software
Thinking incrementally about SaaS
An overview of the key output of the growth software machine
over a year ago
An overview of the key output of the growth software machine
Vitalik Buterin's...
La votación mediante blockchain está sobrevalorada entre personas desinformadas pero subestimada...
over a year ago
Computer Ads from...
Vote for the Topic of the February 2024 Plus Post
If you are a paid subscriber, voting is open for one week
11 months ago
If you are a paid subscriber, voting is open for one week
detreville
🎼This Is the Worst Trip I’ve Ever Been On 🎶
(A Lengthy Vacation Post-Mortem)
8 months ago
(A Lengthy Vacation Post-Mortem)
Louwrentius
I made my blog solar-powered, then things escalated
In 2020 I wondered if I could run my blog on solar power, being inspired by Low-tech Magazine, doing...
a year ago
In 2020 I wondered if I could run my blog on solar power, being inspired by Low-tech Magazine, doing the same thing (but better)1. The answer was 'yes', but only through spring and summer.
I live in an apartment complex in The Netherlands and my balcony is facing west. This...
Notes on software...
Surveying SQL parser libraries in a few high-level languages
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.
Opsbros
Nokia 5110 - Back from the dead. Part 1: Nostalgia
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and...
over a year ago
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and still-memed mobile phone. As it turns out, not only is it possible, but it's going to be a lot easier than I anticipated.
Avestura's Blog
Problems of C, and how Zig addresses them
What are the problems of C, and how Zig addresses them?
a year ago
What are the problems of C, and how Zig addresses them?
Old Vintage...
The spawn of AtariLab and the Universal Lab Interface
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't...
a year ago
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't mean I was unaware of Atari 8-bits. There was a family at church who had an 800XL and later a 130XE — and a stack of COMPUTE!'s I used to read through for hours — and it was...
Matt Mullenweg
Observer Article
Alexandra Tremayne-Pengelly writes for the Observer, WordPress Founder Matt Mullenweg Is ‘More...
2 months ago
Alexandra Tremayne-Pengelly writes for the Observer, WordPress Founder Matt Mullenweg Is ‘More Energized’ Than Ever Amid WP Engine Battle.
Willem's Blog
Tablet as main computer
I have been using a tablet as my main computer for quite some time now. In this blog post I share...
over a year ago
I have been using a tablet as my main computer for quite some time now. In this blog post I share you my experience on using Surface Pro and iPad Pro to get my work done.
latest projects -...
Light comms on the 003
[Hardware] Tiny terrahertz transmissions
5 months ago
[Hardware] Tiny terrahertz transmissions
Vitalik Buterin's...
Gitcoin Grants Round 9: The Next Phase of Growth
over a year ago
Arduino Blog
Why is STEAM education important for kids? 6 activity tips
School’s out for summer – at least for most of us. While the majority of children (and teachers!)...
6 months ago
School’s out for summer – at least for most of us. While the majority of children (and teachers!) will probably be breathing a huge sigh of relief, parents face a new challenge: how to keep kids engaged during the long break. Of course, downtime is important, but there are also...
Odds and Ends of...
Odds and Ends #50: The weird thing about London's New Year's Fireworks
Plus how the government should respond to Musk's nonsense, and an AI video that might just show us...
2 weeks ago
Plus how the government should respond to Musk's nonsense, and an AI video that might just show us how video production is going to change.
Jonas Hietala
Where's Teddy?
So I did this course Game Design and what’s a course on Game Design without a game? Well, here it...
over a year ago
So I did this course Game Design and what’s a course on Game Design without a game? Well, here it is. Made in about seven days (more likely eight) and I thought it became quite cool.
Where’s Teddy?
How to Play
Your mission is to find teddy and his teddybear friends. The...
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
7 months ago
Jonas Hietala
Postmortem: Balls
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one...
over a year ago
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one single game?! Well now I’m not counting the visual basic nightmare mastermind I made a long time ago but a real game. Whatever that means. I’ve had these monster-projects;
Point...
Notes on software...
Enumerating and analyzing 40+ non-V8 JavaScript implementations
V8 is, I'm sure, the most used implementation of JavaScript
today. Used in Chrome, (and by...
over a year ago
V8 is, I'm sure, the most used implementation of JavaScript
today. Used in Chrome, (and by extension) Microsoft Edge, Node.js,
etc. Safari's JavaScriptCore and Firefox's SpiderMonkey are also
contenders for extremely mainstream implementations.
But what else is out there? What if...
Notes on software...
Notes from Neal Gabler's Walt Disney
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though...
a year ago
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though politically the 1930s was considered the decade of
Roosevelt (elected President in 1933), culturally the 1930s was
considered the decade of Mickey Mouse.
Almost every new...
Jonas Hietala
2023 in review
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not...
a year ago
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not anything advanced, I really like looking back at the year to see what has happened.
Maybe it’s a very light version of a reverse bucket list, and I can see that it provides some...
Louwrentius
Monitor power usage with your UPS
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how...
over a year ago
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how much power it consumes. For this purpose, I wrote a
small script:
Host:~# ./ups.sh
UPS model: Back-UPS RS 1200 LCD
APC model: Back-UPS RS 1200 LC
Capacity: 720 Watt
Load: 18...
computers are bad
2023-06-02 the reinvention of owens lake
Programming note: In an effort to introduce an exciting new social aspect to
Computers Are Bad (a...
a year ago
Programming note: In an effort to introduce an exciting new social aspect to
Computers Are Bad (a functional necessity to appease early-stage investor
demands for "engagement")¸ I am launching a Matrix room for CAB readers.
You can join it! Do whatever you do to join rooms in...
Jonas Hietala
The Experimental Games
It’s been nine months since I started doing Experimental Games and I think it’s time to evaluate and...
over a year ago
It’s been nine months since I started doing Experimental Games and I think it’s time to evaluate and maybe go in a new direction.
At first I had been stuck for ages with my never-ending projects and I had literally nothing to show for all my coding. Well now things have changed a...
Arduino Blog
The Swervebot is an omnidirectional robot that combines LEGO and 3D-printed parts
Robotic vehicles can have a wide variety of drive mechanisms that range from a simple tricycle setup...
16 hours ago
Robotic vehicles can have a wide variety of drive mechanisms that range from a simple tricycle setup all the way to crawling legs. Alex Le’s project leverages the reliability of LEGO blocks with the customizability of 3D-printed pieces to create a highly mobile omnidirectional...
seangoedecke.com RSS...
Why some engineers get trusted with high-impact work
It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go...
4 weeks ago
It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go around. Worse still, the chances to work on…
Good Enough
TIL: Listen for JavaScript events only once!
A common thing I find myself doing in Javascript is adding some event driven behavior that I only...
a year ago
A common thing I find myself doing in Javascript is adding some event driven behavior that I only want to happen once. Let’s say I have a big button that starts the process of lowering a certain spy into a pool of certain doom — I don’t want a second button press to awkwardly...
Jonas Hietala
I designed my own keyboard layout. Was it worth it?
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I...
a year ago
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I tried out existing ones, but it didn’t take long before I figured it’s better to develop my own—and things went downhill fast from there.
(Some) combos of the T-34 layout.
But now...
Notes on software...
My favorite software subreddits
Originally published on December 5, 2021.
If you are an experienced software developer whose only...
a year ago
Originally published on December 5, 2021.
If you are an experienced software developer whose only exposure to
reddit is dank memes, proggit or even
language-specific subreddits like
/r/python, you're missing out.
What follows are my favorite subreddits in tech. My criteria is...
Posts on Made of...
Advent of Code in C++ Template Metaprogramming
This December, the imp of the perverse struck me, and I decided to see how many days of Advent of...
a year ago
This December, the imp of the perverse struck me, and I decided to see how many days of Advent of Code I could do purely in compile-time C++ metaprogramming.
As of this writing, I’ve done two days, and I’m not sure I’ll make it any further. However, that’s one more day than I...
./techtipsy
How I treat my urge to hoard data
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized...
over a year ago
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized that the pursuit to hoard all the things will just keep
on consuming more and more of my time and money. Storage is cheap up until to a
point, once you find yourself tracking hard...
./techtipsy
My trip to the Communication and Laptop Museum in Estonia
While on vacation I went on a small road-trip across Estonia. During the second half of the trip I...
a year ago
While on vacation I went on a small road-trip across Estonia. During the second half of the trip I ended up being in Võrumaa,
and while driving I suddenly remembered a random fact that some people mentioned in a hackerspace Slack channel: there’s
a new museum around here!
The...
somenice
Gold and Ghosts
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest...
2 months ago
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest mountains, searching for a legend as old as the hills: the lost crate of gold. The tale of “Shining Creek Gold” was whispered in every saloon from Seattle to San Francisco, a cache...
Opsbros
Volumer
I've always wanted a good USB volume control, so I decided to design one.
over a year ago
I've always wanted a good USB volume control, so I decided to design one.
Arduino Blog
Can this tiny lawn mower robot cut it in the real world?
We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down...
7 months ago
We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down and consumer trust goes up. They work a bit like Roomba vacuums and pathfinding sophistication varies from one model to the next. But even the most basic models are still a lot...
Jonas Hietala
Rewriting my Neovim config in Lua
This screenshot betrays just how much productive time was wasted setting this up.
I’ve got tons of...
a year ago
This screenshot betrays just how much productive time was wasted setting this up.
I’ve got tons of things to do; clean the bathrooms, prototype an idea for a SaaS and ponder world peace.
So naturally the procrastination took over and I rewrote my Neovim configuration in...
Matt Mullenweg
Age-gating
I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and...
a month ago
I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and democratic societies can decide their own rules there. But it should be handled and authenticated as low-level as possible, at the operating system layer. See also: Australia’s...
Willem's Blog
Lunch by plane
This week I went out for lunch by plane from Hilversum to Texel with a good buddy of mine.
over a year ago
This week I went out for lunch by plane from Hilversum to Texel with a good buddy of mine.
Old Vintage...
Ward Christensen dies
There was initially some issue verifying this, but there appears to be direct confirmation now that...
3 months ago
There was initially some issue verifying this, but there appears to be direct confirmation now that Ward Christensen passed away October 11 at the age of 78, co-founder of the pioneering Computerized Bulletin Board System in February 1978 with Randy Suess — now believed to be the...
Louwrentius
PPSS version 2.30 now operates asynchronous
If you background a bash or shell process, how do you determine if it has
finished? Since inter...
over a year ago
If you background a bash or shell process, how do you determine if it has
finished? Since inter process communication is not possible using shell
scripts, people often refer to while loops or other polling mechanisms to
determine if some process has stopped.
However, the one...
Computer Ads from...
Salamander Software's Franklin's Tomb
My name is Diamond, Dan Diamond. I'm a private cop.
10 months ago
My name is Diamond, Dan Diamond. I'm a private cop.
Gwern.net Newsletter
April 2020 gwern.net newsletter
This is the April 2020 edition of the gwern.net newsletter; previous, March 2020 (archives).
over a year ago
This is the April 2020 edition of the gwern.net newsletter; previous, March 2020 (archives).
Jonas Hietala
I Made It!
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a...
over a year ago
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a Ludum Dare! Not an easy feat and yet there are tons of games that look absolutely wonderful. I’m not there yet but now I have at least gotten back into game making again, long...
Birchtree
Apple’s 2024 report card: Apple Watch
This is the fourth in a series of posts reviewing Apple’s 2024 across their major product lines. I...
2 weeks ago
This is the fourth in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s Apple Watch report card here.
Series 10
It’s always fun when we get a new Apple
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a...
over a year ago
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a database/sql driver
In this series we'll write a rudimentary database from
scratch in Go. Project source code is available on
Github.
In this first post we'll build enough of a parser to...
Notes on software...
Windows
It has been six years since I last used Windows for any remotely
serious software development. I've...
over a year ago
It has been six years since I last used Windows for any remotely
serious software development. I've used Ubuntu, Arch, or FreeBSD
since. But eventually I spent so much time working around common
workplace tasks that I decided to put Windows 10 Pro on my work
laptop.
Windows...
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.
Notes on software...
1 million page views
I was delighted to notice this morning that this site has recently
passed 1M page views. And since...
a month ago
I was delighted to notice this morning that this site has recently
passed 1M page views. And since Murat
wrote
about his 1M page view accomplishment at the time, I felt compelled to
now too.
I started regularly blogging in 2018. For some reason I decided to
write a blog post...
./techtipsy
TOMO M4: probably the coolest power bank I've owned
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting...
a year ago
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting two, and here’s why.
This post is not sponsored.
Removable batteries
Let’s start with the feature that I appreciate the most: removable batteries!
The TOMO M4 accepts up to 4...
seangoedecke.com RSS...
From hours to seconds: AI tools to detect animal calls
If you’re currently spending time listening to long audio recordings of birdcalls or animal noises,...
8 months ago
If you’re currently spending time listening to long audio recordings of birdcalls or animal noises, it’s likely that the last four years of…
Avestura's Blog
Understanding zero-knowledge proofs
What are zero-knowledge proofs, really?
over a year ago
What are zero-knowledge proofs, really?
Jonas Hietala
HandCash handles require trust and are insecure
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their...
over a year ago
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their $handle concept. It’s basically a username you use instead of the normal Bitcoin Cash address, similar to how domain names abstract away IP addresses. For example instead of...
Willem's Blog
Hello, stranger
"Discover the transformative power of simple conversations in our tech-dominated world, as one...
a year ago
"Discover the transformative power of simple conversations in our tech-dominated world, as one individual delves into the lost art of talking to strangers and the profound connections it can forge."
Posts on Made of...
Some notes on CVE-2010-3081 exploitability
Most of you reading this blog probably remember CVE-2010-3081. The bug got an awful lot of publicity...
over a year ago
Most of you reading this blog probably remember CVE-2010-3081. The bug got an awful lot of publicity when it was discovered an announced, due to allowing local privilege escalation against virtually all 64-bit Linux kernels in common use at the time.
While investigating...
Jonas Hietala
Writing lessons learned after writing a book
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for...
a year ago
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for writing a book was to improve my writing ability.
Maybe I could’ve practiced on the blog instead, but putting things on paper gave it some added weight I don’t think I would’ve gotten...
Louwrentius
Example of a home networking setup with VLANs
Updated October 24, 2012, see below.
This post is a description of my home network setup based on...
over a year ago
Updated October 24, 2012, see below.
This post is a description of my home network setup based on gigabit ethernet. I did a non-standard trick with VLANs that may also be of interest to other people. I'm going to start with a diagram of the network. Just take a look (click to...
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...
Posts on Made of...
My Apollo Bibliography
Over the last few years — perhaps not that unusually among the nerds I know — I’ve become...
over a year ago
Over the last few years — perhaps not that unusually among the nerds I know — I’ve become increasingly fascinated by the Apollo program (and early space program more generally), and been reading my way through a growing number of books and documentaries written about it. At a...
Notes on software...
Controlled HTML select element in React has weird default UX
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Louwrentius
Lion's FileVault does not support Bootcamp and external boot disks
Read the comments as they may provide useful information for your particular situation
I boot my...
over a year ago
Read the comments as they may provide useful information for your particular situation
I boot my iMac from an external FW800 SSD. I found out that it is impossible to
encrypt this disk using the new FileVault as part of Lion.
Furthermore, I also found out that if you have a disk...
Willem's Blog
Space travelling from El Teide
On Tenerife you'll find Teide, the world's second highest volcano with extra terestial views and a...
over a year ago
On Tenerife you'll find Teide, the world's second highest volcano with extra terestial views and a perfect altitude for stargazing.
Computer Ads from...
Plus Post: Rockwell AIM 65
The Company Rockwell International has been around for quite a while. Willard Rockwell started the...
8 months ago
The Company Rockwell International has been around for quite a while. Willard Rockwell started the company in 1919 to sell a newly designed truck axle bearing. Over the years, Rockwell acquired businesses in many different fields, including defense, industrial electronics,...
Home on Erik...
Music recommendations using cover images (part 1)
Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in...
over a year ago
Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in fact a fairly strong visual proxy for what kind of content you can expect from it. I started wondering if the album cover can in fact be used for recommendations.
Arduino Blog
Expanding possibilities: Blues Wireless amplifies Opta’s connectivity
Blues Wireless and Arduino have joined forces to create the game-changing Blues Wireless for Arduino...
8 months ago
Blues Wireless and Arduino have joined forces to create the game-changing Blues Wireless for Arduino Opta, unveiled this week at the Automate Show in Chicago. The expansion module is an affordable solution to enhance connectivity options for Arduino Opta micro PLCs, and marks a...
Arduino Blog
Prototype faster and smarter in 2025: Meet the Arduino Pro Portenta Proto Kit
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how...
a week ago
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how professionals approach prototyping. Designed to empower engineers, designers, and innovators from all walks of life, this kit provides everything you need to turn your ideas into...
Lighthouse Blog
Introducing Lighthouse - The RSS reader, newsletter reader, and read-it-later app to fight content...
9 months ago
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...
Vitalik Buterin's...
Gitcoin Grants Round 6 Retrospective
over a year ago
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...
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...
Yazin Alirhayim
How do you know that an API does what it says it does?
Having been in fintech for a while, I’ve noticed something in common between the many new startups...
over a year ago
Having been in fintech for a while, I’ve noticed something in common between the many new startups that come and go. They all require access to personal information.
A specific example that comes to mind is the Plaid-like solution we developed while working on amal. We’d ask...
Matt Blewitt
A Love Letter to Giant Robots
Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first...
7 months ago
Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first exposure to them was probably through 1994’s BattleTech animated series, where Adam Steiner piloted an AXM-2N Axman, in its frankly ridiculous neon green and purple paint job. And from...
Jonas Hietala
fish_update_completions in Slackware 14.1
I’ve been trying out fish shell lately. A cool feature with fish is that it can automatically...
over a year ago
I’ve been trying out fish shell lately. A cool feature with fish is that it can automatically generate completions by parsing the installed man pages by running fish_update_completions.
Unfortunately this is what I got:
Traceback (most recent call last):
File...
Opsbros
WetSocks Revival
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do...
over a year ago
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do to get WetSocks Windows 98 tray weather app working again.
Notes on software...
AOT-compilation of Javascript with V8
tldr; I'm working on a AOT-compiled Javascript implementation called
jsc.
Many dynamically typed...
over a year ago
tldr; I'm working on a AOT-compiled Javascript implementation called
jsc.
Many dynamically typed programming languages have implementations that
compile to native binaries:
Python: Cython
Common Lisp: SBCL
Scheme: Chicken Scheme
The benefits of compiling dynamically typed...
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...
Computer Ads from...
VenturCom's VENIX
Mixing REAL Time With REAL UNIX Is Not Magic...It Is Technology.
11 months ago
Mixing REAL Time With REAL UNIX Is Not Magic...It Is Technology.
Jonas Hietala
My Minions
So I think I made it! It became a pretty different game from what I set out to create, but I’m glad...
over a year ago
So I think I made it! It became a pretty different game from what I set out to create, but I’m glad with how it turned out.
My Minions
Instructions
Build a pathway and then place objects or release minions on it, everything must be on a path. Place musical objects or make the...
Notes on software...
Writing an efficient object previewer for JavaScript
This is an external post of mine. Click
here
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over a year ago
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Louwrentius
Wake On Lan not working with realtek r8168 card
After messing around with different kernels on Debian Lenny, I noticed that my
system did no longer...
over a year ago
After messing around with different kernels on Debian Lenny, I noticed that my
system did no longer respond to WOL packets. The system is using an on-board
Realtek R8168 chip which supports wake on lan.
After searching and reading i found the problem. The system is using an...
Notes on software...
btest: a language agnostic test runner
btest is a minimal,
language-agnostic test runner originally written for testing
compilers. Brian,...
over a year ago
btest is a minimal,
language-agnostic test runner originally written for testing
compilers. Brian, an ex- co-worker from Linode, wrote the first
implementation in Crystal (a compiled
language clone of Ruby) for testing
bshift, a compiler
project. The tool accomplished exactly...
Louwrentius
Linux on Mac Mini - boot after power failure
When using a Mac Mini as a server or router, it is very nice if the machine
automatically boots if a...
over a year ago
When using a Mac Mini as a server or router, it is very nice if the machine
automatically boots if a power failure has occurred.
User chirhoxi on the ubuntu forum found out how this can be achieved:
http://ubuntuforums.org/showthread.php?t=1209576
Basically you need one of these...
Simply Explained
Filtering spam on YouTube with TensorFlow & AI
My YouTube channel has been attracting a lot of spammers. They try to trick people by saying they...
over a year ago
My YouTube channel has been attracting a lot of spammers. They try to trick people by saying they know how to profit from trading cryptocurrencies or that they can recover lost wallet keys.I've been marking these comments as spam, thinking that YouTube would learn to recognize...
Home on Erik...
hdfs2cass
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra...
over a year ago
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra bulkloading. The nice thing is that it queries Cassandra for its topology and uses that to partition the data so that each reducer can upload data directly to a Cassandra node.
Ken Shirriff's blog
It's time to abandon the cargo cult metaphor
The cargo cult metaphor is commonly used by programmers.
This metaphor was popularized by Richard...
a week ago
The cargo cult metaphor is commonly used by programmers.
This metaphor was popularized by Richard Feynman's
"cargo cult science" talk with a vivid description of South Seas cargo cults.
However, this metaphor has three major problems.
First,
the pop-culture depiction of cargo...
Matt Blewitt
Unreasonably Effective Patterns
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data...
over a year ago
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data services. This post explores three patterns used to reduce operational burden and increase system safety and resiliency: state machines (and associated state-transition tables),...
Arduino Blog
Arduino Education at Bett 2025: Shaping the future of K-12 and HE
Mark your calendars… Arduino Education is coming to Bett UK 2025! Taking place for three days from...
a month ago
Mark your calendars… Arduino Education is coming to Bett UK 2025! Taking place for three days from January 22nd-24th at the ExCeL exhibition center in London, Bett is the ultimate global event for educational innovation. We are attending the stand with our partner CreativeHut...
Good Enough
Yes, Facebook Is Terrible, but Also…
I’m not on Facebook.
It was eight or ten years ago when I left for good.
While there were some good...
a year ago
I’m not on Facebook.
It was eight or ten years ago when I left for good.
While there were some good and useful interactions, the algorithm brought me down, I didn’t have a lot of desire to keep up with old acquaintances, and hearing everyone’s political stance was not good for...
axio.ms
MicroMac, a Macintosh for under £5
A microcontroller Macintosh
This all started from a conversation about the RP2040 MCU, and building...
7 months ago
A microcontroller Macintosh
This all started from a conversation about the RP2040 MCU, and building a simple desktop/GUI for it. I’d made a comment along the lines of “or, just run some old OS”, and it got me thinking about the original Macintosh.
The original Macintosh was...
Willem's Blog
Using AI to generate code
Discover how AI-generated code can revolutionise your software development process and optimise...
a year ago
Discover how AI-generated code can revolutionise your software development process and optimise cloud performance in our fascinating exploration of GPT-4's transformative capabilities.
./techtipsy
Fairphone 5: my heavily biased overview after 58 days of use (and counting)
After months of contemplating I finally pulled the trigger and got myself
a Fairphone 5. The...
10 months ago
After months of contemplating I finally pulled the trigger and got myself
a Fairphone 5. The fact
that iPhone X stopped receiving major iOS updates certainly helped make that decision.
“But why? My Xiaomi/Oneplus/Samsung/other glued-together device is like so much cheaper and...
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.
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...
Willem's Blog
Something the smartwatch will never have: patina
Patina is often neglected when comparing smartwatches with regular watches.
over a year ago
Patina is often neglected when comparing smartwatches with regular watches.
Abort Retry Fail
The History of Windows 95
The Dawn of Microsoft's Golden Age
a year ago
The Dawn of Microsoft's Golden Age
Louwrentius
Why VMware vSphere replication is changing the game
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller...
over a year ago
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller setups, many people do employ multiple VMware hosts, but the SAN is a single point of failure.
SANs are often fully redundant devices, with redundant PSUs, storage controllers,...
Jonas Hietala
Calling closures in a Vec
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs:...
over a year ago
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs: Vec<||> = Vec::new();
fs.push(|| { println!("imma firing my lazer"); });
for f in fs.iter() {
f(); // error: expected function but found `&||`
};
Maybe if we borrow...
Odds and Ends of...
Christmas Mailbag!
Is Elon Musk actually smart? Will HS2 ever be properly finished? Do I like Dominic Cummings? And...
a month ago
Is Elon Musk actually smart? Will HS2 ever be properly finished? Do I like Dominic Cummings? And more!
Willem's Blog
Hospitalised with MCADD
This week our son was hospitalised because a regular illness caused him to keep vomiting, a...
over a year ago
This week our son was hospitalised because a regular illness caused him to keep vomiting, a dangerous situation if you're diagnosed with MCADD.
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,...
Louwrentius
Debian Linux Preseeding - an installation framework
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully...
over a year ago
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully operational
system is fun. PXE boot and preseeding is not enough however to accomplish
this.
By itself, preseeding only installs a basic operating system. Next, you need
to configure all sorts of...
Louwrentius
Performance monitoring using dstat
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is...
over a year ago
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is currently happening on your Linux box.
Dstat allows you to monitor the system load, disk troughput, disk io, network
bandwith, and many more items.
Dstat is so valuable because it...
Arduino Blog
5 ways to use Arduino with kids
One of the great things about making is that it really is for everyone — every budget, every skill...
7 months ago
One of the great things about making is that it really is for everyone — every budget, every skill level, and every age group. Children are one of the groups that can benefit the most from Arduino. Getting exposed to making and home automation from an early age can be enormously...
Avestura's Blog
Hiding a photo inside another photo
How to hide a small photo inside a larger photo?
over a year ago
How to hide a small photo inside a larger photo?
Vitalik Buterin's...
Gitcoin Grants Round 7 Retrospective
over a year ago
Computer Ads from...
Plus Post: Quantum Software Systems Ltd's QNX
Operating Systems Come in Many Flavors But QNX Can Take the Heat
9 months ago
Operating Systems Come in Many Flavors But QNX Can Take the Heat
GitButler
The New Era of Town Hall Chat
We're moving from Slack to Discord so we can involve our community more. Here's how we did it and...
4 months ago
We're moving from Slack to Discord so we can involve our community more. Here's how we did it and more importantly, why.
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.
Applied Cartography
Migrating someone who's on Stripe Connect Express
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author...
a year ago
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author has full agency over their account and is the merchant of record;
they can revoke OAuth access from Substack (or whomever) at any time;
Substack continues to take that 10% as an...
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?
GitButler
GitButler 0.13 - "Lucky Baseball"
It has been 4 months since our last minor release. In that time, we have done 27 patch releases,...
2 months ago
It has been 4 months since our last minor release. In that time, we have done 27 patch releases, adding lots of small features, bug fixes, performance improvements and experiments.
Last week we released GitButler 0.13, which is our first release with our new Fearless Rebasing...
Jonas Hietala
Postmortem: Sat-E
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The...
over a year ago
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The Good
Motivation
I was really motivated for this dare and it showed in the game and outside it. It’s super hard to make a game in only 48 hours but this time it went pretty well. My...
Posts on Made of...
amd64 and va_arg
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t...
over a year ago
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t support the va_arg intrinsic, used by functions to accept multiple arguments, at all on amd64. It turns out that clang and llvm-gcc, the compilers that backend to LLVM, have their own...
Jonas Hietala
Long Term Goals
I have a lot of things I want to do. Right now I want to go to the kids training tomorrow and also...
over a year ago
I have a lot of things I want to do. Right now I want to go to the kids training tomorrow and also to our training time. I haven’t trained a lot lately so it feels good to do something again and training the kids is very rewarding. On Monday I have the next graph theory lecture...
Louwrentius
Migration from blogger to blogofile and disqus is complete
As stated in my previous post, I migrated all posts from blogger.com to my own host running...
over a year ago
As stated in my previous post, I migrated all posts from blogger.com to my own host running blogofile.
At the time of my previous post, I was not able to restore all comments made on my old blog. Thanks to some help
from disqcus I fixed an error on my behalf and all old comments...
Louwrentius
A practical understanding of lead acid batteries
Introduction
The goal of this article is to give you a practical understanding Lead Acid batteries....
over a year ago
Introduction
The goal of this article is to give you a practical understanding Lead Acid batteries. We won't address the underlying chemistry, we'll treat them as a black-box and we will discover their characteristics and how to keep them healthy.
Disclaimer
I'm an amateur. I...
Louwrentius
How to run Debian Linux on an Intel based Mac Mini
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy...
over a year ago
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy efficient. When idle, it uses around 20 watts. I'm using
one of the first Intel-based Minis with an Intel Core Duo chip, running at 1.6
Ghz.
I want to use this mini as an expensive router...
Arduino Blog
See how this homemade spectrometer analyzes substances with an Arduino Mega
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic...
3 weeks ago
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic spectrum that can give valuable information about their chemical or physical compositions. Traditional setups use a single lamp to emit white light before it is split apart into a...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 2: The Surge
3 months ago
Jonas Hietala
My Dream Game: The RTS
Even if there are a million great games there’s one that has a very special place in my heart:...
over a year ago
Even if there are a million great games there’s one that has a very special place in my heart: Supreme Commander. It’s not the game I’ve played the most and there might even be games which are better and more fun but supcom was the game that introduced me to competitive gaming...
Applied Cartography
Typesafe routes in Vue
I watched Gary Bernhardt's talk on static routing back a few years ago and — I'm not sure if I would...
7 months ago
I watched Gary Bernhardt's talk on static routing back a few years ago and — I'm not sure if I would call it formative, but it stuck in my craw as a platonic ideal of sorts, as something I couldn't really justify adopting within Buttondown but really wanted.
I built out and...
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...
Vitalik Buterin's...
STARKs, Part II: Thank Goodness It's FRI-day
over a year ago
Notes on software...
Static analysis with semgrep: practical examples using Docker
In this post we'll get a basic semgrep environment set up in Docker
running some custom rules...
over a year ago
In this post we'll get a basic semgrep environment set up in Docker
running some custom rules against our code.
Existing linters
Linters like pylint for Python or
eslint for JavaScript are great for general,
broad language standards. But what about common nits in code review
like...
watchTowr Labs
Check Point - Wrong Check Point (CVE-2024-24919)
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and...
7 months ago
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and laying bare a recent in-the-wild exploited bug. This time, it is Check Point who is the focus of our penetrative gaze.
Check Point, for those unaware, is the vendor responsible for...
Willem's Blog
Collecting health data with Biostrap
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.
over a year ago
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.
Home on Erik...
Spotify's Discovery page
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage...
over a year ago
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage of all users. Really happy since we have worked on it for the past six months. Here's a screen shot:
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 