Home on Erik...
Learning from users faster using machine learning
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're...
over a year ago
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're running an e-commerce site (I kind of do) and you want to optimize the number of purchases.
Let's also say we try to learn as much as we can from users, both using A/B tests but also...
Jonas Hietala
(Fake) Bittman Chinese Chicken
Lesson 6! I went to Cervera and bought a holder to allow me to steam chicken.
I broke the recipe on...
over a year ago
Lesson 6! I went to Cervera and bought a holder to allow me to steam chicken.
I broke the recipe on multiple fronts: chicken wings instead of chicken breasts, mushroom soy instead of tamarin, roman salad instead of baby bok choi (where the heck do you find that…) and I even...
Notes on software...
Exploring PL/pgSQL: Strings, arrays, recursion, and parsing JSON
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a...
over a year ago
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a builtin imperative programming language called
PL/pgSQL. I used to think this language was scary because it has a bit
more adornment than your usual language does. But looking deeper,...
computers are bad
2024-08-12 a pedantic review of the las vegas loop
Did you hear that Elon Musk dug a tunnel under the Las Vegas Convention
Center?
I think it is pretty...
4 months ago
Did you hear that Elon Musk dug a tunnel under the Las Vegas Convention
Center?
I think it is pretty universally known by now that the "Las Vegas Loop" is
impractical, poorly thought out, and generally an embarrassment to society and
industry. I will spare an accounting of the...
Home on Erik...
My favorite management failures
For most people straight out of school, work life is a bit of a culture shock. For me it was an...
over a year ago
For most people straight out of school, work life is a bit of a culture shock. For me it was an awesome experience, but a lot of the constraints were different and I had to learn to optimize for different things.
Louwrentius
Automated install of Debian Linux based on PXE net booting
Every honest and good system administrator is continue bussy with automating
his work. For two...
over a year ago
Every honest and good system administrator is continue bussy with automating
his work. For two reasons:
Repeating the same task over and over again is friggin boring. A system
administrator has better things to do, such as drinking coffee.
Humans make mistakes, especially if...
Computer Ads from...
Comics from 1982/08 Commodore Computing International Mag
Time for some humor
5 months ago
Louwrentius
Why security is all about defense in depth
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing...
over a year ago
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing could be further from the truth. Keeping your systems up-to-date only protects you against exploits for publicly known vulnerabilities.
Your systems are still not protected...
Jonas Hietala
Moving to FastMail
About two years ago after Lavabit’s shutdown I searched for a replacement email provider. For some...
over a year ago
About two years ago after Lavabit’s shutdown I searched for a replacement email provider. For some reason I settled on eumx which I used since then. Yesterday I got an email saying the recurring billing could not be renewed as I had my old credit card registered and it got me...
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?
Posts on Made of...
Iron Blogger: Blogging for Beer
So, you may have noticed that I suddenly started updating this blog for the first time in a while....
over a year ago
So, you may have noticed that I suddenly started updating this blog for the first time in a while. The reason is that I’ve recently started an ongoing event with a whole bunch of friends around here to encourage us to blog more.
Like so many good ideas, it all started with a...
Computer Ads from...
ProHance Technologies' Power Mouse
Even A Totally Souped up PC Is A Dog Without PowerMouse
3 months ago
Even A Totally Souped up PC Is A Dog Without PowerMouse
Matt Blewitt
Movement for Engineers
Until we get get to be chromed-up cyborgs, we’re stuck with our meat bodies, and like many things,...
a year ago
Until we get get to be chromed-up cyborgs, we’re stuck with our meat bodies, and like many things, they need regular maintenance. Here is a brief introduction to keeping your body moving as someone who spends a lot of time sitting down.
Home on Erik...
Ping the world
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some...
over a year ago
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some notes:
What's going on with Sweden? Too much torrenting? Ireland is likewise super slow, but not Northern Ireland Eastern Ukraine is also super slow, maybe not surprising given...
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 6. an x86 upgrade
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
3. LLVM
4. LLVM conditionals and compiling fibonacci
5. LLVM system calls
This post upgrades the ulisp x86 backend from using a limited set of
registers (with no spilling...
somenice
Generative 3D Modeling
Recently Microsoft released the open 3D generation software Trellis. I decided to try a few tests as...
5 days ago
Recently Microsoft released the open 3D generation software Trellis. I decided to try a few tests as reviews had been quite favourable with results creating 3D models with “AI”. The website describes the technology as unified Structured LATent (SLAT) representation and there is a...
Louwrentius
Scanning many hosts in parallel with Nmap using PPSS
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output...
over a year ago
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output is written to a file or disk. Only when Nmap is finished,
is all output written to the output file. Often, I want to start processing
results of hosts that have already been...
Louwrentius
'Tool of the month: iftop - advanced bandwidth monitoring'
The utility iftop allows you to monitor bandwidth usage. It is in some
sense similar to tools like...
over a year ago
The utility iftop allows you to monitor bandwidth usage. It is in some
sense similar to tools like iptraf, dstat and bwm-ng. Iftop is more special
than those. Because iftop lets you monitor the speed of individual TCP / UDP
connections. Basically, you will be able to determine...
Old Vintage...
Programming the Convergent WorkSlate's spreadsheet microcassette future
In this particular future, we will all use handheld spreadsheets stored on microcassettes, talking...
3 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...
computers are bad
2024-10-12 commercial HF radio
According to a traditional system of classification, "high frequency" or HF
refers to the radio...
2 months ago
According to a traditional system of classification, "high frequency" or HF
refers to the radio spectrum between 3 and 30 MHz. The label now seems
anachronistic, as HF is among the lowest ranges of radio frequencies that see
regular use. This setting of the goalposts in the early...
Vitalik Buterin's...
An approximate introduction to how zk-SNARKs are possible
over a year ago
axio.ms
Axio.ms site refresh
This is the obligatory “first post on new platform” post, coupled with a bit of “first post in 4...
over a year ago
This is the obligatory “first post on new platform” post, coupled with a bit of “first post in 4 years, I’m still alive”.
The original axio.ms site was a very HTML1.0 affair and while this was kind of intentional-tongue-in-cheek-chic, it was also a PITA to update. It wasn’t...
Louwrentius
Cryptocurrencies are detrimental to society
Want to listen to this article?
audio element.
Introduction
How would you explain the inner...
over a year ago
Want to listen to this article?
audio element.
Introduction
How would you explain the inner workings of bitcoin to a person in simple, understandable terms?
source
This explanation seems perfect to me because it illustrates some seriously problematic aspects of...
Posts on Made of...
Why scons is cool
I’ve recently started playing with scons a little for some small personal projects. It’s not...
over a year ago
I’ve recently started playing with scons a little for some small personal projects. It’s not perfect, but I’ve rapidly come to the conclusion that it’s a probably far better choice than make in many cases. The main exceptions would be cases where you need to integrate into legacy...
Home on Erik...
statself.com
Btw I just put something up online that I spent a couple of evenings in my couch putting together:...
over a year ago
Btw I just put something up online that I spent a couple of evenings in my couch putting together: it's a website where you can track any numerical data on the web. Want to know how many Twitter followers you have?
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
csvbase blog
Take the tools out of 'Data', but don't take the data out of the tools
Using dataframes to write smaller, faster programs
a year ago
Using dataframes to write smaller, faster programs
Louwrentius
Cheap solution for putting an SSD in an iMac
If you want to order a new iMac with an SSD there are two problems:
An SSD of 256 gigabytes will...
over a year ago
If you want to order a new iMac with an SSD there are two problems:
An SSD of 256 gigabytes will cost you a lot: 600 euros.
The SSD is of medium quality, and does not justify the cost of 600 euros.
Here you can find information about the Toshiba SSD that Apple provides.
You can...
Arduino Blog
Shop vac becomes a Roomba on steroids
A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and...
7 months ago
A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and sweep your own floors, you have a little maid robot to do the job for you. But these devices have very little power and capacity, which makes them useless for anything other than...
Good Enough
TIL: Managing Raspberry Pi software with a bit less pain
For the printer project I'm working on, most of the software behind it runs "in the cloud", but...
a year ago
For the printer project I'm working on, most of the software behind it runs "in the cloud", but there's some software that needs to run beside each printer, to check for new things to print and manage the process of downloading and sending those things to the printer component...
Jonas Hietala
An Elixir based payment processor for the Coinparty hackathon
Bitcoin Unlimited is hosting a Bitcoin Cash hackathon this December and it seemed like a good...
over a year ago
Bitcoin Unlimited is hosting a Bitcoin Cash hackathon this December and it seemed like a good opportunity for me to explore how to program against Bitcoin Cash, and it gives me an excuse to build something real with Phoenix and Elixir. (While an event like this might help combat...
Posts on Made of...
Computers can be understood
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially...
over a year ago
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially all of my work with software. I attempt to articulate this mindset, some of its implications and strengths, and some of the ways in which it’s lead me astray.
Software can be...
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...
Notes on software...
Learning a new codebase: hacking on nginx
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up,...
over a year ago
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up, compiling it, and running it
doesn't scare me. This post is to help you overcome your own fears
about doing so. Not necessarily because you should be running
out-of-tree diffs in...
Notes on software...
A minimal distributed key-value database with Hashicorp's Raft library
When I wrote the "build a distributed PostgreSQL proof of
concept" post I first had to figure...
over a year ago
When I wrote the "build a distributed PostgreSQL proof of
concept" post I first had to figure out
how to use Hashicorp's Raft
implementation.
There weren't any examples I could find in the Hashicorp repo
itself. And the only example I could find was Philip O'Toole's
hraftd. It's...
Matt Blewitt
Logical Replication Guardrails
I’ve been working with logical replication in PostgreSQL recently, and I wanted to share a few...
6 months ago
I’ve been working with logical replication in PostgreSQL recently, and I wanted to share a few thoughts on how to implement some guardrails to make things easier on operators.
Willem's Blog
Apple Watch as Phone
Embark on a digital detox journey as I swap my smartphone for an Apple Watch Ultra, exploring the...
a year ago
Embark on a digital detox journey as I swap my smartphone for an Apple Watch Ultra, exploring the liberating yet challenging world of wearable tech.
Jonas Hietala
Good and Bad Programmers
Every now and day blog posts about what it takes to be a good programmer or how you figure out if...
over a year ago
Every now and day blog posts about what it takes to be a good programmer or how you figure out if someone is a bad programmer arrives. There’s always talk about how you find the good programmers in interviews and the topic is always hot in schools and universities.
Today I read...
Electronics etc…
A Hardware Interposer to Fix the Symmetricom SyncServer S200 GPS Week Number Rollover Problem
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to...
4 months ago
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to GPS
The GPS Week Number Rollover Issue
Making the Furuno GT-8031 Work Again
How It Works
Build Instructions
Power Supply Recapping
The Future: A Software-Only Solution
The...
Jonas Hietala
Netrunner Summer Tournament Linköping
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs...
over a year ago
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs with Old Hollywood and The Universe of Tomorrow so a lot of new things were tried. I heard a rumor that a full playset of both Aesop’s Pawnshop and Wyldside were available so I...
Engineers Need Art
Offline Advocate
Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of...
a month ago
Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of mind.
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?
Arduino Blog
This ‘smocking display’ adds data physicalization to clothing
Elastic use in the textile industry is relatively recent. So, what did garment makers do before...
5 months ago
Elastic use in the textile industry is relatively recent. So, what did garment makers do before elastic came along? They relied on smocking, which is a technique for bunching up fabric so that it can stretch to better fit the form of a body. Now a team of computer science...
Arduino Blog
The end of Mbed marks a new beginning for Arduino
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially...
5 months ago
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially destined to reach end of life in July 2026, and therefore will no longer be maintained. The news has sent ripples through the embedded development community, particularly affecting...
Old Vintage...
After 41 years, my first assembly program on my first computer, the Tomy Tutor
We got it in 1983, I think, so it only took me about 41 years to get around to it. This Tomy Tutor...
9 months ago
We got it in 1983, I think, so it only took me about 41 years to get around to it. This Tomy Tutor isn't a replacement system I secondarily acquired, nor is it a Ship of Theseus Frankenstein rebuild. This is my actual first computer, in its original case, on its original...
Home on Erik...
More recommender algorithms
I wanted to share some more insight into the algorithms we use at Spotify. One matrix factorization...
over a year ago
I wanted to share some more insight into the algorithms we use at Spotify. One matrix factorization algorithm we have used for a while assumes that we have user vectors $$ bf{a}_u $$ and item vectors $$ bf{b}_i $$ .
Matt Blewitt
Control Loops and Rice Cookers
Rice cookers are fascinating machines. I’ve owned one for years, as rice is a significant part of my...
over a year ago
Rice cookers are fascinating machines. I’ve owned one for years, as rice is a significant part of my regular diet, and it completely removes the stress of preparing rice. They also operate on a simple principle that can help us operate cloud infrastructure – the control loop.
./techtipsy
My experience at the k-space hackerspace hackathon
k-space is a hackerspace in Tallinn, Estonia, and they organized
a hackathon recently. Unlike in...
a year ago
k-space is a hackerspace in Tallinn, Estonia, and they organized
a hackathon recently. Unlike in most hackathons, in this one you could whatever you like with no
expectations about building a business or coming up with an MVP, just come on down to the space and
start working on...
Jonas Hietala
ghc 8.8.3 cannot find cabal 3.0.0.0 packages
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system...
over a year ago
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system it suddenly stopped working. I installed my dependencies with cabal install xmonad, and checked that it’s installed under ~/.cabal:
$ ls .cabal/bin/
xmonad@
But still when I...
Jonas Hietala
2020 in review
And so 2020 has come to an end. On a global scale it’s been quite a horrible year, and for me...
over a year ago
And so 2020 has come to an end. On a global scale it’s been quite a horrible year, and for me personally it’s been both good and bad. Luckily we haven’t been directly affected by COVID too much, but it’s still been very disruptive. Either way as I’ve done for years now it always...
Ken Shirriff's blog
Inside an unusual 7400-series chip implemented with a gate array
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple...
9 months ago
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple die,
implemented in a straightforward, cost-effective way.
However, when I looked inside a military-grade chip built by Integrated Device Technology (IDT)4
I found a very unexpected...
Notes on software...
Lessons learned streaming building a Scheme-like interpreter in Go
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like...
a year ago
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like language (minus macros and arrays and
tons of stuff).
I picked this simple topic because I wanted a low-stakes way to learn
what I did not know about making videos.
Here was the...
latest projects -...
Smallest USB-C MIDI Synth
[Hardware] The smallest and silliest MIDI synth yet
a year ago
[Hardware] The smallest and silliest MIDI synth yet
Matt Mullenweg
Kindness and Techcrunch Disrupt
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their...
a month ago
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their awesome non-profit kindness.org. You can listen to it through Pocket Casts here: This is kind of funny because I’m obviously in the midst of the big battle with Silver Lake and WP...
Louwrentius
Lustre and the risk of Serious Data Loss
Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm
interested. So I was...
over a year ago
Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm
interested. So I was thinking about how you would setup a large, scalable
storage infrastructure. How should such a thing work?
Very simple: you should be able just to add hosts with some bad-ass huge...
Louwrentius
HP Proliant Microserver Gen10 as router or NAS
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine...
over a year ago
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine replaces the older Gen8 model.
For hobbyists, the Microserver always has been an interesting device for a custom home NAS build or as a router.
Let's find out if this is still the case....
Jonas Hietala
Failed mime type for Krita
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open)...
over a year ago
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open) a file and gave the error:
Could not find mime type "application/x-krita"
Turns out if you reinstall the package shared-mime-info which comes natively with Slackware the...
Notes on software...
Writing a SQL database, take two: Zig and RocksDB
For my second project while learning Zig, I decided to port an
old, minimal SQL database project...
over a year ago
For my second project while learning Zig, I decided to port an
old, minimal SQL database project from Go to Zig.
In this post, in ~1700 lines of code (yes, I'm sorry it's bigger than
my usual), we'll create a basic embedded SQL database in Zig on top of
RocksDB. Other than the...
Louwrentius
ZFS: resilver performance of various RAID schemas
When building your own DIY home NAS, it is important that you simulate and test drive failures...
over a year ago
When building your own DIY home NAS, it is important that you simulate and test drive failures before you put your important data on it. It makes sense to know what to do in case a drive needs to be replaced. I also recommend putting a substantial amount of data on your NAS and...
Jonas Hietala
Up like a Sun, Down like a Pancake
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But...
over a year ago
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But it just don’t feel right to me. I’m not prepared, I feel a little bit stressed and I don’t really have faith in my game so I’m gonna step down this one as well. But it’s fine, Ludum...
Posts on Made of...
Testing and feedback loops
Testing and feedback loops This post tries to set out one mental model I have for thinking about...
over a year ago
Testing and feedback loops This post tries to set out one mental model I have for thinking about testing and the purpose testing serves in software engineering, and to explore some of the suggestions of this model.
As mentioned in an earlier post, I think a lot about working in...
Arduino Blog
DIY submersible pump controller helps retrieve well water
It might surprise our urban-dwelling readers, but wells are still very common in rural areas where...
6 months ago
It might surprise our urban-dwelling readers, but wells are still very common in rural areas where it is difficult or prohibitively expensive to run utilities. The CDC reports that more than 15 million households rely on groundwater and wells — and that’s just in the United...
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,...
Posts on Made of...
CVE-2007-4573: The Anatomy of a Kernel Exploit
CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It...
over a year ago
CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It was a local privilege-escalation vulnerability on all x86_64 kernels prior to v2.6.22.7. It’s very simple to understand with a little bit of background, and the exploit is...
Louwrentius
Storage and I/O: reads vs. writes
There is a fundamental difference between a read operation and a write operation. Storage can lie...
over a year ago
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned.
About...
Louwrentius
'Improved' image gallery for Blogofile
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports...
over a year ago
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports a small image gallery that has been written to illustrate how to create your own 'controllers' or Blogofile plugins.
My Python skills are horrible buy I managed to improve a bit...
Jonas Hietala
The eBook for 'Why Cryptocurrencies?' is now available for free
The eBook for my book Why Cryptocurrencies? is now available for free.
It’s been almost 4 years...
10 months ago
The eBook for my book Why Cryptocurrencies? is now available for free.
It’s been almost 4 years since the web version was done, and 3 since the physical copy was available…
Which can hardly be called a success.
Things happened, so let’s do a quick retrospective to, maybe, learn...
Applied Cartography
Hidden settings are for cowards
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be...
2 weeks ago
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be explicitly temporal (temporarily split-testing traffic; rolling out a new feature or code path; exposing a specific path for a cohort of users during a closed beta) and gates,...
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...
Louwrentius
Benefits of hyper-threading on a Core 7i processor
I had some wave files that I wanted to encode to mp3. I wrote a small parallel
processing framework...
over a year ago
I had some wave files that I wanted to encode to mp3. I wrote a small parallel
processing framework for this job. It executes parallel jobs so I can benefit
from the 4 cores + 4 virtual cores of my new Core 7i 920 processor.
The framework is based on some shell scripts running...
Willem's Blog
Born with MCADD
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were...
over a year ago
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were lucky to be just in time!
Willem's Blog
Vision Pro
My thoughts on using Vision Pro to get some real work done, exploring what Spatial Computing means...
10 months ago
My thoughts on using Vision Pro to get some real work done, exploring what Spatial Computing means and how it can be useful.
Jonas Hietala
Netrunner Lindhska Store Championship Örebro
After the awesomeness during the previous store championship, I decided to go to the store...
over a year ago
After the awesomeness during the previous store championship, I decided to go to the store championship at Lindhska Bokhandel in Örebro.
I brought a modified version of the same corp I used the last time, a Blue Sun kill deck and a new runner with Leela Patel. See the links for...
Electronics etc…
$17 GM1312 Thermometer Review, Test, and Teardown
Introduction
What is a thermocouple
The GM1213 Thermometer
A few...
a year ago
Introduction
What is a thermocouple
The GM1213 Thermometer
A few tests
Internals
Conclusion
References
Introduction
I’ve been doing a bunch of measurements on oven-controlled oscillators lately,
including their temperature. There are multiple ways to measure...
Home on Erik...
Wikiphilia
I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles...
over a year ago
I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles worth sharing and that's why I created the wikiphilia Twitter handle. Just a long stream of stuff that for one reason or another may be interesting.
Notes on software...
The limitations of LLMs, or why are we doing RAG?
This is an external post of mine. Click
here
if you are not redirected.
6 months ago
This is an external post of mine. Click
here
if you are not redirected.
Style over Substance
Shooting the Ligero 3D-printed Mamiya Press camera by MaxWanderlush
Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the...
over a year ago
Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the panoramic pinhole Goodman Scura and the MPWide, a modified Fuji Instax Wide 300. The MPWide is a mod by the talented Mario, otherwise known as MaxWanderlush. He has been releasing...
Jonas Hietala
ISOC update
I have now worked a bit more than 3 weeks out of my 4 weeks of IDA Summer of Code and this is an...
over a year ago
I have now worked a bit more than 3 weeks out of my 4 weeks of IDA Summer of Code and this is an update post of what I’ve done so far. I will write a more extensive summary post at the end of the project. I was planning on writing a weekly summary, but that ship sailed a long...
computers are bad
2023-05-07 electrical characteristics of telephone lines
Let's take a break from our boring topic of regional history to focus instead
on an even more boring...
a year ago
Let's take a break from our boring topic of regional history to focus instead
on an even more boring topic: implementation details of telephone lines.
The conventional "copper pair" analog telephone line is fading away. The FCC
has begun to authorize abandonment of copper outside...
Simply Explained
Impact of Adblockers on Google Analytics (vs. Plausible)
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have...
over a year ago
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have one installed. Not only do they block advertisements, but also analytics scripts (like Google Analytics, Matomo, etc.)So that begs the question: what is the impact of these...
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...
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...
a month 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!...
Jonas Hietala
2012 in Review
Like the last two years I’m summarizing the year. At the end of the year like this it always feel...
over a year ago
Like the last two years I’m summarizing the year. At the end of the year like this it always feel like I didn’t accomplish much, but after the yearly summary it always feels better.
2012 Geek Achievements
Designed a processor which fulfills the Core Wars 88 standard. Includes a...
Matt Mullenweg
Where is Lee Wittlinger?
Lee controls the board of WP Engine. The board is why WP Engine hasn’t done a trademark deal for...
2 months ago
Lee controls the board of WP Engine. The board is why WP Engine hasn’t done a trademark deal for their use of the WordPress and WooCommerce trademarks. You hide behind lawyers and corporate PR when you’re wrong, not when you’re right. I’m replying on Twitter, I’m commenting on...
Home on Erik...
Fun with trigonometry: the world's most twisted coastline
I just spent a few days in Italy, on the Ligurian coast. Even though we were on the west side of...
over a year ago
I just spent a few days in Italy, on the Ligurian coast. Even though we were on the west side of Italy, the Mediterranean sea was to the east, because the house was situated on a long bay.
Notes on software...
Languages you can run in the browser, part 1: Python, JavaScript, SQLite
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here
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over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Notes on software...
Studying foreign languages with inbox zero
The only time I've been able to seriously, rapidly improve my ability
to speak a foreign language...
over a year ago
The only time I've been able to seriously, rapidly improve my ability
to speak a foreign language was through intensive language courses in
college. I was forced to actively speak, read, and write Chinese for
6-8 hours a week (1-2 hours every day). Then study another 5-10 hours
a...
OH8HUB’s Substack
Spring ham radio activation of Korkattivuori (Mt. Korkatti)
Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature...
a year ago
Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature reserve area near town Haapavesi (pop. 6588) in Finland. The nature reserve area consist of short family friendly hiking path of approximately 1.5km. One end of the path has parking...
Home on Erik...
Norvig's claim that programming competitions correlate negatively with being good on the job
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation...
over a year ago
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation between being good at programming competitions and being good at the job. There were some decent Hacker News comments on it.
Opsbros
JSON and PowerShell
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will...
over a year ago
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will allow you to manipulate these objects efficiently.
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.
Arduino Blog
Create your own affordable Arduino-powered smart glasses
When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the...
7 months ago
When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the world isn’t ready yet.” Now that more than a decade has passed, the world may finally be ready — especially with the omission of controversial features like video recording. If...
latest projects -...
Hand-cranked Flux Capacitor
[Concept] Control the flow of time
a year ago
[Concept] Control the flow of time
seangoedecke.com RSS...
Building multiplayer games with socket.io and HTML5 Canvas
I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps...
over a year ago
I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps was a Visual Basic game - I was in…
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom...
3 months ago
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
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...
Vitalik Buterin's...
Degen communism: the only correct political ideology
8 months ago
Willem's Blog
Write your own words
Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for...
a month ago
Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for human creativity.
Willem's Blog
The day I killed my LAN
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
over a year ago
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
Neil Madden
Newsletter
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably...
11 months ago
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably exploring a few topics around AI and philosophy. If you’d prefer some more technical content around security and cryptography, then take a look at the newsletter I put out for my...
Louwrentius
Monitor power usage with your UPS
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how...
over a year ago
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how much power it consumes. For this purpose, I wrote a
small script:
Host:~# ./ups.sh
UPS model: Back-UPS RS 1200 LCD
APC model: Back-UPS RS 1200 LC
Capacity: 720 Watt
Load: 18...
Louwrentius
How to escape file names in bash shell scripts
After fighting with Bash for quite some time, I found out that the following
code provides a nice...
over a year ago
After fighting with Bash for quite some time, I found out that the following
code provides a nice basis for escaping special characters. Ofcource it is not
complete, but the most important characters are filtered.
If anybody has a better solution, please let me know. It works and...
Notes on software...
Delightful, production-grade replication for Postgres
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4 months ago
This is an external post of mine. Click
here
if you are not redirected.
Computer Ads from...
UNIX Review Magazine Interviews Larry Tesler
They discuss Tesler's involvement with Xerox, Apple and office automation with Unix.
3 months ago
They discuss Tesler's involvement with Xerox, Apple and office automation with Unix.
axio.ms
Classical virtualisation rules applied to RISC-style atomics
In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable...
over a year ago
In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable Third Generation Architectures”, giving a set of characteristics for correct full-machine virtualisation.
Today, these characteristics remain very useful. Computer architects will...
Vitalik Buterin's...
Where to use a blockchain in non-financial applications?
over a year ago
computers are bad
2024-02-11 the top of the DNS hierarchy
In the past (in fact two years ago, proof I have been doing this for a while
now!) I wrote
about
the...
10 months ago
In the past (in fact two years ago, proof I have been doing this for a while
now!) I wrote
about
the "inconvenient truth" that structural aspects of the Internet make truly
decentralized systems infeasible, due to the lack of a means to perform
broadcast discovery. As a result,...
Jonas Hietala
Postmortem: MenuCity
Good times, good times. MenuCity has been out a while and thanks for all the positive and...
over a year ago
Good times, good times. MenuCity has been out a while and thanks for all the positive and constructive feedback guys, it’s like my food doing this (programming is my air and the fun is the water… err). Anyway here’s the postmortem of my latest, and greatest, game.
Let’s start...
watchTowr Labs -...
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623)
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a week ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely.
Cleo have a...
On Life and Lisp
Fun and Games with Exposure Notifications
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact...
over a year ago
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact tracing on mobile phones by exchanging codes with nearby phones over Bluetooth, implemented within the Android and iOS operating systems, now available here in Toronto.
Wait –...
Birchtree
Yet more YouTube videos I've enjoyed recently
I guess this is a series now…
Do you have a chair where "half dirty" clothes go? If so, this chair...
a week ago
I guess this is a series now…
Do you have a chair where "half dirty" clothes go? If so, this chair will be very compelling.
I'm not a big fan of most Apple TV+ shows, but Severance was lovely and I can't wait
Notes on software...
SQLite has pretty limited builtin functions
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over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Notes on software...
Errors and Zig
At TigerBeetle these last few weeks I've been doing a mix of
documenting client libraries, writing...
a year ago
At TigerBeetle these last few weeks I've been doing a mix of
documenting client libraries, writing sample code for client
libraries, and writing integration tests against the sample code.
The client library documentation is generated with a Zig script. The
sample code is...
lcamtuf’s thing
The marvelous disappearing capacitor
The performance of photodiode amplifiers can be improved in a clever way.
2 weeks ago
The performance of photodiode amplifiers can be improved in a clever way.
csvbase blog
You can't just assume UTF-8
How to infer character encodings with statistics
7 months ago
How to infer character encodings with statistics
Louwrentius
Linux RAID 6 performance using software RAID
So after toying around with RAID 0 just for fun, time to get serious. I
created a RAID 6 of 10 x 1...
over a year ago
So after toying around with RAID 0 just for fun, time to get serious. I
created a RAID 6 of 10 x 1 TB disks. This gives me raw device read speeds
of 850 MB/s and write speeds of 300 MB/s. I think this is exactly
what should be expected, but boy it is damn fast. Especially the...
Willem's Blog
Fietselfstedentocht 2017
Cycling the 235KM long Fietselfstedentocht through Friesland
over a year ago
Cycling the 235KM long Fietselfstedentocht through Friesland
Push to Prod
4 Ways To Say No, Elegantly and Effectively
In my early days at Netflix, my inability to say no led me into unpleasant terrain. Here's how I...
3 months ago
In my early days at Netflix, my inability to say no led me into unpleasant terrain. Here's how I evolved to navigate these situations more fluidly.
Jonas Hietala
Beginning Programming
I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree...
over a year ago
I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree more with. Basically he has these points:
Too long
Too many examples like “Hello World!”
No answers to exercises.
Nr 1 is a pretty curious one. Even though I think a book is good,...
Good Enough
TIL: Merge nested attributes in Rails permit params
I am working on a new product that's a bit more complicated than our prior releases.
Getting...
a year ago
I am working on a new product that's a bit more complicated than our prior releases.
Getting refamiliarized with nested parameters in Rails has been interesting.
In this case imagine I have a discussion that, when creating it I also want to create the first comment.
The...
Old Vintage...
So thieves broke into your storage unit - again
If you've been wondering why entries have been a little slow lately, let me tell you a story.
All...
2 months ago
If you've been wondering why entries have been a little slow lately, let me tell you a story.
All collectors tend to be a bit obsessive by nature, and us classic computer nerds probably pick up more hardware than we can (or should) store in our residence — especially if the...
Good Enough
How We Made A Good Enough Zine
We made a zine!
The first issue was released in August, and I finished the second issue just last...
a year ago
We made a zine!
The first issue was released in August, and I finished the second issue just last week. Right now, a hundred copies are on their way from the printer to me (update: they've just arrived!). Today I'd like to share the story of how this zine came about.
(Sorry for...
Willem's Blog
Rescuing photos from a crashed iMac
This week I attempted to recover two decades of personal photo history from a crashed iMac.
over a year ago
This week I attempted to recover two decades of personal photo history from a crashed iMac.
Applied Cartography
Notes on Zed, revisited
A little over six months ago, I wrote Notes on Zed. My conclusion at that time was that Zed made a...
2 months ago
A little over six months ago, I wrote Notes on Zed. My conclusion at that time was that Zed made a lot of great choices and felt really good to use, but lacked parity with VS Code's feature/ecosystem to its detriment.
Six months later, I spent a few days using it as my daily...
Ian's Blog
Hardware-Protected Apple Distribution Certificates Using a YubiKey
iOS and macOS developers will be familiar with the dreaded distribution certificate, a codesigning...
a year ago
iOS and macOS developers will be familiar with the dreaded distribution certificate, a codesigning certificate issued to you by Apple for signing your release artifacts before you distribute them.
Protecting that signing key is important, as Apple must blindly trust any binaries...
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...
3 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.
Jonas Hietala
Settled on an unoriginal idea
I think I’ve decided what to do. Some very slight progress has been made.
over a year ago
I think I’ve decided what to do. Some very slight progress has been made.
./techtipsy
Can a laptop from 2012 be a viable home server?
I’m a man of many ideas. It’s a shame that most of them are quite stupid.
This is one of them, but...
over a year ago
I’m a man of many ideas. It’s a shame that most of them are quite stupid.
This is one of them, but at least it makes for a fun experiment.
Intro
After adding an UPS to accompany my server,
my setup was as complete as it could reasonably be. The server is low power,
but packs...
Jonas Hietala
Long Term Goals (part 2)
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major...
over a year ago
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major goals I have:
Write my own Programming Language
Why? Because it sounds fun and epic as hell.
Write a Book
So I like books and I like to collect them and I have my whole bookcase...
Good Enough
Asking the Right Question
Lately I've been pondering the future for Album Whale. It does what we'd like it to do, and we've...
a year ago
Lately I've been pondering the future for Album Whale. It does what we'd like it to do, and we've spread the word enough that there's now a steady stream of new users coming in each day. So, what's next?
Portrait of the author pondering
My first impulse was to answer this...
Good Enough
Pika: Start Your Happy Blog
Have you thought about starting or restarting a blogging habit? Have you wanted to write on the...
10 months ago
Have you thought about starting or restarting a blogging habit? Have you wanted to write on the internet, but at your own place and at your own address rather than on a social network? Have you been overwhelmed by the online writing options that you’ve found? Well, have we got...
Birchtree
The future simply has more computers (members post)
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers...
5 days ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Good Enough
Grassroots
TLDNR: If you have an interest in Good Enough succeeding, we need your help! Telling friends,...
8 months ago
TLDNR: If you have an interest in Good Enough succeeding, we need your help! Telling friends, shouting on socials, and sharing links to our stuff with your favorite influencers–all of these things will help Good Enough succeed and continue making amazing stuff!
As we’ve been...
Matt Mullenweg
Bezos at Dealbook
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew...
2 weeks ago
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew Ross Sorkin, but this one with Jeff Bezos was particularly good.
Applied Cartography
Linear
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes...
5 days ago
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes I wanted to publish on our own experience of migrating from GitHub Issues to Linear, and some reflections on it as a product now that we've been using it for a few months.
One...
anderegg.ca
The “Home Alone” / “NiGHTS into Dreams” connection
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one...
2 weeks ago
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one of my favourites from the Saturn lineup, and it also had a free Christmas version.
In it, there’s a song I really love that plays on the level select screen called Gate of Your...
./techtipsy
My blog successfully survived a scheduled power outage
I had the opportunity to test the resiliency of my home server setup due to a scheduled power outage...
3 months ago
I had the opportunity to test the resiliency of my home server setup due to a scheduled power outage on 2024-09-13.
It was also Friday the 13th. I’m not superstitious, but I’m a little stitious.
My setup usually consists of the home server, a Wifi AP/router combo box, a converter...
Notes on software...
Be someone who does things
I wrote last
month that
what you want to do is one of the most useful motivations in life. I
want to...
3 months ago
I wrote last
month that
what you want to do is one of the most useful motivations in life. I
want to follow that up by saying that the only thing more important
than wanting to do something is to actually do something.
The most valuable trait you can develop for yourself is to...
Arduino Blog
BrainPatch.AI: How a British neurotech startup built a working prototype fast, using Arduino Nano 33...
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and...
3 months ago
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and effective non-invasive interfaces that can deliver tiny milliamp currents to the right stimulation location on the head, neck or body. One example of the new players in this field is...
Jonas Hietala
Trying and returning the Eight Sleep Pod 4
I recently bought the Eight Sleep Pod 4—a smart mattress cover that tracks your heart rate, HRV,...
2 months ago
I recently bought the Eight Sleep Pod 4—a smart mattress cover that tracks your heart rate, HRV, snoring, and cools or warms the mattress during the night.
There’s a lot to like about the mattress but in the end I opted to return it.
This post describes my experience with the Pod...
Applied Cartography
Au revoir, Invoke
It's not quite interesting or noteworthy enough to warrant a full-on essay, but yesterday we...
7 months ago
It's not quite interesting or noteworthy enough to warrant a full-on essay, but yesterday we unshipped the last remaining Invoke commands and ported them over to just.
I think Invoke is a good, cool project, and I wish it well. If you're at the precise intersection of "you have...
Vitalik Buterin's...
Quadratic Payments: A Primer
over a year ago
Push to Prod
Making an AB Test Allocator 20x Faster Using Non-blocking IO
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it...
a month ago
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it effectively.
Good Enough
TIL: Tapback Keyboard Shortcuts
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant...
a year ago
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant past, simple reactions to messages were added: what Apple calls Tapbacks.
These are great for a quick way to say yes (or no, or WTF!?!), but they are a bit of a pain to actually...
Arduino Blog
Patrol the pool with this Arduino Nano-powered DIY RC submarine
There is something inherently intriguing about submarines that doesn’t seem to apply to other...
4 months ago
There is something inherently intriguing about submarines that doesn’t seem to apply to other vehicles. Maybe that reflects our natural fears and phobias, or maybe it is a result of our curiosity about the mysterious depths. Maybe it is simply that most of us will never get the...
Willem's Blog
Designing a multi dimensional capacity queue
Dealing with a capacity queue is challenging, but if you take the time to model it right it is...
over a year ago
Dealing with a capacity queue is challenging, but if you take the time to model it right it is possible to create a performant and reliable system.
Matt Mullenweg
Rhino Dehorning
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles,...
2 months ago
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles, elephants. Today wasn’t great: I witnessed a rhino shot with a tranquilizer from a helicopter, then it was held down, had its horns cut off, and then shaved down. I have some photos and...
Home on Erik...
Fermat's principle
I was browsing around on the Internet and the physics geek in me started reading about Fermat's...
over a year ago
I was browsing around on the Internet and the physics geek in me started reading about Fermat's principle. And suddenly something came back to me that I've been trying to suppress for many years – how I never understood why there's anything fundamental about the principal of...
Jonas Hietala
An intriguing new puzzle
Here’s another game made for the experimental gameplay project:
Slidoku which is a sort of mix...
over a year ago
Here’s another game made for the experimental gameplay project:
Slidoku which is a sort of mix between Rubik’s cube and sudoku. I enjoy puzzles like those and I really enjoyed this one too - it took me a while to beat it but I just love the feeling when you do. If you like...
Old Vintage...
When the Power Macintosh ran NetWare (featuring Wormhole and Cyberpunk)
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple...
12 months ago
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple developer who was part of the NetWare team. Thank you!
the network operating system of the 1990s. Nothing was quite like it. Until Windows NT muscled in on its action near the end of the...
Jonas Hietala
Rewriting my blog in Rust for fun and profit
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think...
over a year ago
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think I used Jekyll and also more dynamic pages with Mojolicious in Perl and Kohana in PHP, but I can’t be completely sure as the git history doesn’t go back that far.
But all good...
Louwrentius
I resurrected my Dutch movie review site from 2003
Introduction
Between 2003 and 2006, I ran a Dutch movie review site called moevie.nl.1
I built the...
over a year ago
Introduction
Between 2003 and 2006, I ran a Dutch movie review site called moevie.nl.1
I built the site and wrote the reviews. It never made any money. It cost me money to host, and it cost me a lot of time writing reviews, but I remember enjoying writing reviews about films I...
Louwrentius
Building a RAID 6 array of mixed drives
To be honest, 4 TB of storage isn't really necessary for home usage.
However, I like to collect...
over a year ago
To be honest, 4 TB of storage isn't really necessary for home usage.
However, I like to collect movies in full DVD or HD quality and so I need some
storage.
I decided to build myself a NAS box based on Debian Etch. Samba is used to
allow clients to access the data. The machine...
Matt Mullenweg
UH Magazine, Revisiting My Alma Mater
My father attended University of Houston, and it’s where I went to college to study political...
a week ago
My father attended University of Houston, and it’s where I went to college to study political science, I started WordPress when there, and then dropped out after two years to move to San Franisco. It was fun seeing UH Magazine feature an article about my journey from a University...
Willem's Blog
Enter text without keys
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a...
over a year ago
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a mouse or keyboard!
Matt Blewitt
7 Databases in 7 Weeks for 2025
I’ve been running databases-as-a-service for a long time, and there are always new things to keep...
3 weeks ago
I’ve been running databases-as-a-service for a long time, and there are always new things to keep abreast of - new technologies, different ways of solving problems, not to mention all the research coming out of universities. In 2025, consider spending a week with each of these...
Arduino Blog
Exploring Alvik: 3 fun and creative projects with Arduino’s educational robot platform
Alvik is cute, it’s smart, it’s fun… so what can it actually do? To answer this question, we...
4 days ago
Alvik is cute, it’s smart, it’s fun… so what can it actually do? To answer this question, we decided to have fun and put the robot to the test with some of the most creative people we know – our own team! A dozen Arduino employees volunteered for a dedicated Make Tank session...
Posts on Made of...
Navigating the Linux Kernel
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way...
over a year ago
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way around the Linux kernel. I’m not sure I have much in the way of systematic advice for tracking down the answers to questions about the Linux kernel, but thinking about what I do when...
computers are bad
2023-03-13 the door close button
This will probably be a short one, and I know I haven't written for a while,
but it has always been...
a year ago
This will probably be a short one, and I know I haven't written for a while,
but it has always been the case that you get what you pay for and Computers
Are Bad is nothing if not affordable. Still, this is a topic on which I am
moderately passionate and so I can probably stretch...
Posts on Made of...
Lab Notebooking for the Software Engineer
A few weeks ago, I wrote that software engineers should keep lab notebooks as they work, in addition...
over a year ago
A few weeks ago, I wrote that software engineers should keep lab notebooks as they work, in addition to just documenting things after the fact. Today, I’m going to share the techniques that I’ve found useful to try to get in the habit of lab-notebooking my work, even though I...
Lighthouse Blog
Updates November 4: Free newsletter to RSS tool
a month ago
Home on Erik...
MCMC for marketing data
The other day I was looking at marketing spend broken down by channel and wanted to compute some...
over a year ago
The other day I was looking at marketing spend broken down by channel and wanted to compute some simple uncertainty estimates. I have data like this:
<th> Total spend </th> <th> Transactions </th> Channel A <td> 2292.
GitButler
The Future of Open Source
A GitHub founder's musings on the past, present and future of large groups of people collaborating...
4 months ago
A GitHub founder's musings on the past, present and future of large groups of people collaborating on software in awesome ways.
Home on Erik...
Leaving Spotify
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an...
over a year ago
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an amazing experience.
I joined Spotify in Stockholm in 2008, mainly because a bunch of friends from programming competitions had joined already.
Louwrentius
Achieving 2.3 GB/s with 16 x 4 TB drives
I'm in the process of building a new storage server to replace my 18 TB NAS.
The server is almost...
over a year ago
I'm in the process of building a new storage server to replace my 18 TB NAS.
The server is almost finished, it's now down to adding disk drives. I'm using the HGST 4 TB 7200 RPM drive for this build (SKU 0S03356) (review).
I have not bought all drives at once, but slowly adding...
Nabeel S. Qureshi
Films + Books, Q1 2023
What I watched and read
a year ago
Good Enough
Good Enough, A Serious Business
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you...
a year ago
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you a bit about how Good Enough came to be and what we plan on doing here.
Barry and I started working together again in early 2022. By “work,” I mean that I’d show up on Slack for a...
Posts on Made of...
Graceful behavior at capacity
Suppose we’ve got a service. We’ll gloss over the details for now, but let’s stipulate that it...
a year ago
Suppose we’ve got a service. We’ll gloss over the details for now, but let’s stipulate that it accepts requests from the outside world, and takes some action in response. Maybe those requests are HTTP requests, or RPCs, or just incoming packets to be routed at the network layer....
Computer Ads from...
T/Maker: Tiny Software Company Takes on the Giants (Interview)
An interesting look at a company with less than 20 employees playing with the big boys
2 months ago
An interesting look at a company with less than 20 employees playing with the big boys
Jonas Hietala
New Year, New Theme: 100 Things
Happy New Year, Everyone! 2009 was great in many ways; I drove a submarine (yeah quite literally), I...
over a year ago
Happy New Year, Everyone! 2009 was great in many ways; I drove a submarine (yeah quite literally), I released 6 experimental games and recently I discovered the completely amazing game Evil Genius but lets try to make 2010 even better!
So let’s forget our small mishaps (yes I’m...
Jonas Hietala
Let's build a VORON: Wrap-up
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to...
9 months ago
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to leave it alone for a while, so I think it’s time to wrap up this build series with a little retrospective.
Building the printer was really fun and rewarding
I’ve always seen...
Louwrentius
HighPoint RocketRAID and staggered spinup with Samsung F1
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using...
over a year ago
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using 'staggered spinup' in combination with Samsung Spinpoint F1, 1
(one) terrabyte disks.
The problem is that the F1 disks spinup very slowly and often seem to 'hang'
while making ticking...
Louwrentius
LFS - Linux Firewall Script released
I started a small new Google project for a new script I wrote called LFS.
It stands for Linux...
over a year ago
I started a small new Google project for a new script I wrote called LFS.
It stands for Linux Firewall Script.
I run a small Linux box as an internet router that doubles as a firewall. The
firewall is configured using iptables. In my opinion, iptables is not the
easiest tool to...
Willem's Blog
Migrating to the Cloud
Helping a customer clear its on-premise data room and migrate to the cloud: an adventure full of...
over a year ago
Helping a customer clear its on-premise data room and migrate to the cloud: an adventure full of cables, cabinets and bandwidth!
Ken Shirriff's blog
Inside the tiny chip that powers Montreal subway tickets
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it...
6 months ago
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens.
The ticket works through a system called NFC, but what's happening internally?
How does the ticket work without a battery? How does it communicate with the turnstile?
And how can it...
Vitalik Buterin's...
Notes on Blockchain Governance
over a year ago
Bryan Braun - Blog
One Million Checkboxes and the fear of viral success
When Nolen Royalty’s One Million Checkboxes site went viral, several people sent me links to it.
If...
4 months ago
When Nolen Royalty’s One Million Checkboxes site went viral, several people sent me links to it.
If you haven't heard of One Million Checkboxes, see the Wikipedia article for more details.
I loved everything about One Million Checkboxes. It was simple but strangely compelling....
Vitalik Buterin's...
Halo and more: exploring incremental verification and SNARKs without pairings
over a year ago
Jonas Hietala
An update on my book 'Why Cryptocurrencies?'
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to...
over a year ago
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to finish the book.
Sorry that’s a bit of a lie, I’ve had a nice long vacation where I didn’t work on the book and I’m also on part-time parental leave. And believe me there’s not a...
Applied Cartography
Applied Cartography × People & Blogs
There are few pleasures greater than getting to be profiled for an interview series that you've been...
2 months ago
There are few pleasures greater than getting to be profiled for an interview series that you've been reading for months, and last week I got to do exactly that.
To browse Manu's site — not just this interview series — feels a bit like walking on a quiet beach in autumn: there's a...
Odds and Ends of...
Odds and Ends #47: I think this YouTube video just changed my life
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
a week ago
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
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...
Willem's Blog
Repairing a Giro AEON bicycle helmet
Try fixing your Giro bicycle helmet? I went through some trouble to do it! Read along to find out...
over a year ago
Try fixing your Giro bicycle helmet? I went through some trouble to do it! Read along to find out how.
Notes on software...
Emulating linux/AMD64 userland: interpreting an ELF binary
In this post we'll stumble toward a working emulator for a barebones C
program compiled for...
over a year ago
In this post we'll stumble toward a working emulator for a barebones C
program compiled for linux/AMD64. The approach will be slightly more
so based on observation than by following a spec; a great way
to quickly become familiar with a topic, and a bad way to...
Avestura's Blog
Explaining The Postgres Meme
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
a year ago
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
Arduino Blog
This automatic laser turret keeps the cats entertained for hours
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their...
2 months ago
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their cats indoors to avoid decimating the local wildlife population and that means Mr. Whiskers and Ms. Socks don’t get much opportunity to express their hunting urges. That’s why...
./techtipsy
I encourage you to write a blog
It’s been over 4 years since my first post on this blog.
During those 4 years I’ve written over 90...
3 months ago
It’s been over 4 years since my first post on this blog.
During those 4 years I’ve written over 90 posts, received over 1 million clicks,
a dozen legitimate reader e-mails and thousands of spam e-mails.
And I love it!
I’ve found that writing can be very fulfilling and I encourage...
./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...
Simply Explained
ESP32: Keep WiFi connection alive with a FreeRTOS task
I have a few ESP32's running in my house. A few of them are running 24/7 and require an always-on...
over a year ago
I have a few ESP32's running in my house. A few of them are running 24/7 and require an always-on WiFi connection. That's been quite tricky to implement. I used to include various checks throughout my code, but that's not scalable.What I need is something running in the...
./techtipsy
I tried out the CyberPower UT650EG UPS
After some spicy feedback to my post where a ThinkPad T430 acted as a server,
I decided to try out...
over a year ago
After some spicy feedback to my post where a ThinkPad T430 acted as a server,
I decided to try out one UPS that was recommended on the basis of it being much
more power efficient compared to the APC UPS that I previously ran.
That UPS? CyberPower UT650EG.
Why switch out a...
./techtipsy
Back to roots
This blog is running on a home server again.
I have once again gained access to a competent internet...
6 months ago
This blog is running on a home server again.
I have once again gained access to a competent internet connection1, and
I think I have figured out the IPv6 setup as well2, leading to this change.
The IP address is dynamic, there are occasional power outages and I might just
mess up...
./techtipsy
Anything's a portable speaker if you're brave enough
I hate buying things that are single-purpose, which is why I ended up with this
setup.
Take a...
a year ago
I hate buying things that are single-purpose, which is why I ended up with this
setup.
Take a speaker, a battery, put them together, and what you now have is a
portable speaker. Since I had access to both, I felt no need to buy a separate
portable speaker for use in social...
computers are bad
2023-11-04 nuclear safety
Nuclear weapons are complex in many ways. The basic problem of achieving
criticality is difficult on...
a year ago
Nuclear weapons are complex in many ways. The basic problem of achieving
criticality is difficult on its own, but deploying nuclear weapons as
operational military assets involves yet more challenges. Nuclear weapons must
be safe and reliable, even with the rough handling and...
Notes on software...
Notes on running Electron
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.
Lars Lofgren
The Sleazy World of Reddit Marketing, Everything is Fake
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of...
4 months ago
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of dollars per month for doing nothing. Maybe tens of thousands. With a 100% real example. I’ve edited nothing. When you’re a Reddit mod, you have a TON of power in that subreddit. You...
Avestura's Blog
What is the type of Type?
Should type of `Type` be also `Type`? Or is there an alternative?
over a year ago
Should type of `Type` be also `Type`? Or is there an alternative?
Arduino Blog
Exploring fungal intelligence with biohybrid robots powered by Arduino
At Cornell University, Dr. Anand Kumar Mishra and his team have been conducting groundbreaking...
a month ago
At Cornell University, Dr. Anand Kumar Mishra and his team have been conducting groundbreaking research that brings together the fields of robotics, biology, and engineering. Their recent experiments, published in Science, explore how fungal mycelia can be used to control robots....
Old Vintage...
The Living Computers Museum finally isn't
First off, apologies for a quiet month as I've been dealing with family matters which hopefully are...
5 months ago
First off, apologies for a quiet month as I've been dealing with family matters which hopefully are now on a better footing (more articles are in the hopper). Unfortunately, the same apparently can't be said for the once-great Living Computers Museum + Labs in Seattle,...
Willem's Blog
Cleaning a vintage watch
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old...
over a year ago
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old beauty underneath layers of dirt!
Simply Explained
Tracking gas usage with ESPHome, Home Assistant, and TCRT5000
In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home...
over a year ago
In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home Assistant added an Energy Management feature that keeps track of electricity and gas usage. So naturally, I had to make my gas meter smart as well.
On Life and Lisp
The Federation Fallacy
Throughout the free software community, an unbridled aura of justified mistrust fills the air:...
over a year ago
Throughout the free software community, an unbridled aura of justified mistrust fills the air: mistrust of large corporations, mistrust of governments, and of course, mistrust of proprietary software. Each mistrust is connected by a critical thread: centralisation.
Thus,...
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…
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...
Jonas Hietala
Easy setup of a static site on Amazon S3 with SSL
I’ve been hosting my site on Amazon S3 for a while now but I never activated SSL for it. I just...
over a year ago
I’ve been hosting my site on Amazon S3 for a while now but I never activated SSL for it. I just never got around to it, probably the usual procrastination.
When I had to setup a new site for another project I chose to host on Amazon as well. Although there are many other free...
Jonas Hietala
Geekhack Toxic
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it...
over a year ago
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it be?
With a crummy mobile phone photo I give you my TOXIC keycaps mounted on my trusty old das keyboard:
Woooo
If only my GH60 could arrive some time this decade…
Arduino Blog
Speed up your project’s compile time by up to 50% in Arduino Cloud!
At Arduino, we know how precious your time is when you’re building your next big project or...
a week ago
At Arduino, we know how precious your time is when you’re building your next big project or experimenting with new ideas. That’s why we’re thrilled to introduce a game-changing update to the Cloud Editor Builder — the engine behind compiling your sketches in Arduino Cloud. This...
Jonas Hietala
The T-34 keyboard layout
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with...
over a year ago
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with much fewer keys, like the 36-key Gergoplex and the 44-key Kyria. I may write another post about the reasons why, but long story short I started getting pain in my thumbs, fingers,...
Vitalik Buterin's...
Should Ethereum be okay with enshrining more things in the protocol?
a year ago
Jonas Hietala
First impressions of Pollen
After having consumed Practical Typography I took a look at the library he wrote to create books for...
over a year ago
After having consumed Practical Typography I took a look at the library he wrote to create books for the web called Pollen written in Racket. I’ve only used it a little but I feel I can give my first impressions of it.
What I like
The first thing I really like is Pollen enables...
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...
Matt Blewitt
Point and Call
It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter...
over a year ago
It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter Expert (SME) for. Sleepy, you load up the playbook for when the SplineReticulatorBlocked alert has gone off, and start executing. The Incident Commander (IC) is vaguely aware of what...
Willem's Blog
Realtime human pose recognition through computer vision
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose...
over a year ago
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose detection using PoseNet.
Louwrentius
Don't use cloud services if you care about secrecy of your data
When you use cloud services, you are storing your data on other people's hard drives.
The moment you...
over a year ago
When you use cloud services, you are storing your data on other people's hard drives.
The moment you put your data within a cloud service, that data is no longer under your control. You don't know who will access that data. Secrecy is lost.
Instead of using services like Gmail...
Electronics etc…
Tektronix TDS 684B Oscilloscope Button Swap
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End...
8 months ago
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End Result
Introduction
I recently bought a TDS 684B for cheap at a government auction. With 1 GHz BW
and 5 Gsps sample rate, it can be used for those cases where my 350 MHz/2Gsps
Siglent...
detreville
🎼This Is the Worst Trip I’ve Ever Been On 🎶
(A Lengthy Vacation Post-Mortem)
7 months ago
(A Lengthy Vacation Post-Mortem)
Applied Cartography
Letters to a Young Bartender
Every straight white male is forced, character-creation-screen-style, to choose one overtly...
2 weeks ago
Every straight white male is forced, character-creation-screen-style, to choose one overtly consumptive hobby that in some small part defines their twenties and – God willing — their enduring adulthood. Some choose sourdough; many choose barbecue; I chose mixology.
(A...
./techtipsy
How to make digital copies of your old video tapes
Introduction
This is a short overview of one way to take your old video tapes and make digital...
over a year ago
Introduction
This is a short overview of one way to take your old video tapes and make digital copies of their contents.
To get started, you will need the following:
old video tapes that you want to make copies of (VHS and its variants)
a device that can read analog AV signals...
Avestura's Blog
How to change visibility in massive GitHub organizations like EpicGames?
How to publicize and un-publicize your visibility in massive GitHub orgs?
over a year ago
How to publicize and un-publicize your visibility in massive GitHub orgs?
Home on Erik...
Never attribute to stupidity that which is adequately explained by opportunity cost
Hanlon's razor is a classic aphorism I'm sure you have heard before: Never attribute to malice that...
over a year ago
Hanlon's razor is a classic aphorism I'm sure you have heard before: Never attribute to malice that which can be adequately explained by stupidity.
I've found that neither malice nor stupidity is the most common reason when you don't understand why something is in a certain way.
Louwrentius
Core i7 920 @ 3,6 Ghz is a true beast!
Even today, Core 2 Duo processors clocked at 2 ghz are no slugs. However, the
Core i7 920 is of a...
over a year ago
Even today, Core 2 Duo processors clocked at 2 ghz are no slugs. However, the
Core i7 920 is of a different kind. First, it is not only clocked at a higher
speed (default 2,8 Ghz), it is also a quad-core processor. Thanks to the re-
introduction of hyperthreading, this processor...
Gwern.net Newsletter
September 2020 News
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no...
over a year ago
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no reviews.
Home on Erik...
Software infrastructure 2.0: a wishlist
Software infrastructure (by which I include everything ending with *aaS, or anything remotely...
over a year ago
Software infrastructure (by which I include everything ending with *aaS, or anything remotely similar to it) is an exciting field, in particular because (despite what the neo-luddites may say) it keeps getting better every year! I love working with something that moves so...
Willem's Blog
Wearing Grand Seiko
I am glad I took the opportunity to wear a Grand Seiko, learning first hand about its craftsmanship,...
over a year ago
I am glad I took the opportunity to wear a Grand Seiko, learning first hand about its craftsmanship, innovation and practicality.
Good Enough
Season 3, Issue 2: Britney Coltrane
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I...
a year ago
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I tried to deal with the company-side of work: setting up payroll, health insurance, and making sure we’re compliant (hello, bureaucracy!). Back in the day when Danny and I started...
Engineers Need Art
VPX Scripting - Part 5 (DOF)
Some light Visual Pinball debugging and the world of DOF. New to DOF? Read on.
8 months ago
Some light Visual Pinball debugging and the world of DOF. New to DOF? Read on.
Home on Erik...
My issue with GPU-accelerated deep learning
I've been spending several hundred bucks renting GPU instances on AWS over the last year. The...
over a year ago
I've been spending several hundred bucks renting GPU instances on AWS over the last year. The speedup from a GPU is awesome and hard to deny. GPUs have taken over the field. Maybe following the footsteps of Bitcoin mining there's some research on using FPGA (I know very little...
axio.ms
Internet of kitchen lighting, with OSC
This project was completed in June 2015. Wow, is it 2017 already?
In this post, I’d like to say...
over a year ago
This project was completed in June 2015. Wow, is it 2017 already?
In this post, I’d like to say that I wrote a useful little bit of software and built up a crappy hack to demonstrate it but, secretly, the crappy hack came first and I’ve retroactively found something vaguely...
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...
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.
Home on Erik...
Being data driven
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long...
over a year ago
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long interview with U.S. General Stanley McChrystal and I thought it was pretty interesting how striking some of the similarities are between fighting in a war and developing software.
Jonas Hietala
Design for Hackers has arrived!
Design for Hackers
It’s here! After about a month of waiting I’ve finally gotten the book that will...
over a year ago
Design for Hackers
It’s here! After about a month of waiting I’ve finally gotten the book that will make me a design god! Or at least make me aware of something called design. Joking aside I’m really terrible at design and making things look good. Admittedly my programming art...
Willem's Blog
Rolex DateJust 36
Celebrating a major milestone, I treated myself to a Rolex DateJust 36. Want to know what it's like?...
over a year ago
Celebrating a major milestone, I treated myself to a Rolex DateJust 36. Want to know what it's like? Keep reading!
Jonas Hietala
Finishing Stuff
I haven’t done much blogging or game programming in a while but instead I’ve finished some school...
over a year ago
I haven’t done much blogging or game programming in a while but instead I’ve finished some school stuff. We completed the assembly course labs, which were pretty fun actually, and I managed to finally complete the electronics course I’ve been holding off on for like forever… But...
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...
Jonas Hietala
Early Christmas Present
School is almost over and it’s almost time to travel back up to Övertorneå. This year me and...
over a year ago
School is almost over and it’s almost time to travel back up to Övertorneå. This year me and Veronica opened our Christmas presents a bit early - we’re impatient like that.
I got one of the best presents yet I think! A Raspberry Pi!
Just look at this bad boy!
She got some...
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...
Ian's Blog
Learn how Windows builds its store of trusted root CA certificates
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It...
over a year ago
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It might surprise you, and it certainly did for me, but out-of-the-box Windows doesn't come with a set of root CA certificates sufficient for web browsing.
You can see this for...
Louwrentius
Highpoint RocketRAID 2320 on Debian howto
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed...
over a year ago
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed binary driver.)
http://www.highpoint-tech.com/USA/bios_rr2320.htm
Install the kernel headers if you haven't already
- apt-get install linux-headers-2.6.18-6-k7
- extract the...
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...
Arduino Blog
Get notified of impending floods with this Arduino Nano 33 IoT-based display
As climate change continues to worsen, events such as heavy rains, hurricanes, and atmospheric...
2 months ago
As climate change continues to worsen, events such as heavy rains, hurricanes, and atmospheric rivers have only intensified, and with them, large amounts of flooding that pose serious risks to life and property. Jude Pullen and Pete Milne, therefore, have responded by creating a...
Arduino Blog
Enhance your IoT dashboards with Arduino Cloud’s new Image widget
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited...
3 months ago
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited to announce a new feature for Arduino Cloud that will allow you to enhance your IoT dashboards: the Image widget. The new Image widget The Image widget is a simple yet powerful...
Jonas Hietala
Customizing Neovim
Scripting is configuration. Configuration is scripting.
TJ DeVries A different take on editing...
7 months ago
Scripting is configuration. Configuration is scripting.
TJ DeVries A different take on editing code
I’ve been using Neovim since it forked from Vim almost 8 years ago, and I used Vim many years before that.
I feel quite comfortable with Neovim, and I’ve gone down the...
Arduino Blog
Why do OTA updates matter in IoT?
Imagine you’ve just installed your state-of-the-art lighting control system, perfectly hidden in a...
6 months ago
Imagine you’ve just installed your state-of-the-art lighting control system, perfectly hidden in a box inside a wall, and everything seems to be working like a charm. But then, you spot a bug in the firmware. The thought of pulling the hardware back out sends shivers down your...
Louwrentius
How to run victron veconfigure on a mac
Introduction
Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool....
9 months ago
Introduction
Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool. Unforntunately this is a Windows-only tool, but there is still a way for Apple users to run this tool without any problems.
Tip: if you've never worked with the Terminal app on MacOS, it...
Willem's Blog
Marathon
Read the story of how it feels to complete your first marathon.
2 months ago
Read the story of how it feels to complete your first marathon.
Home on Erik...
Deep learning for… chess (addendum)
My previous blog post about deep learning for chess blew up and made it to Hacker News and a couple...
over a year ago
My previous blog post about deep learning for chess blew up and made it to Hacker News and a couple of other places. One pretty amazing thing was that the Github repo got 150 stars overnight.
Jonas Hietala
Recent experiences with Netrunner tournaments
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three...
over a year ago
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three tournaments during February - March. After each of these tournaments I started a writeup of them but they fell off my mind a bit but consider this my break with my blogging...
Arduino Blog
Adding real-time local voice controls to a SMARS Quad Mod robot with an Arduino RP2040 Connect
Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools...
4 months ago
Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools for learning more about how electronics, mechanics, and software can combine to perform useful tasks in the physical world. And in his latest project, Edge Impulse’s senior...
Jonas Hietala
2012 Read Books
I read a post, sadly lost the link, where the author had recorded all books she had read during the...
over a year ago
I read a post, sadly lost the link, where the author had recorded all books she had read during the year and I thought it’d be pretty fun to do. So here goes, in a mostly ordered list.
The Art of Learning - Josh Waitzkin
Världens Whiskey
More of a reference book.
Linear Algebra...
Computer Ads from...
Plus Post: Lobo MAX-80
The Computer Tandy Should Have Built (at least according to the ad).
9 months ago
The Computer Tandy Should Have Built (at least according to the ad).
Home on Erik...
Google diversity memo, global warming, Pascal's wager, and other stuff
There's about 765 million blog posts about the diversity “memo” that leaked out of Google a couple...
over a year ago
There's about 765 million blog posts about the diversity “memo” that leaked out of Google a couple of weeks ago. I think the case for any biological difference is pretty weak, and it bothers me when people refer to an “interest gap” as anything else than caused by the...
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...
somenice
Painting of Russet Lake
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the...
3 months ago
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the natural world is alive with vibrant colours and serene beauty. One of the most stunning scenes unfolds at Russet Lake, where the iconic Fissile Mountain is mirrored perfectly in the...
Old Vintage...
Adding a cooling fan to the Commodore 128DCR
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a...
a year ago
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a hot, horrid summer in Floodgap Very Sub-Orbital Headquarters and I was somewhat concerned about the heat in the house computer lab even with the A/C cranked up to "Vegas weekend for...
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...
a month 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...
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!
anderegg.ca
Anzu Castle Gracula
Turns out you can release a QBasic game on Steam if it’s packaged correctly. Beside being a nerdy...
a month ago
Turns out you can release a QBasic game on Steam if it’s packaged correctly. Beside being a nerdy oddity, this game is extremely well made and quite fun! Lots of Castlevania II vibes going on here. Check out Anzu Castle Gracula on Steam, or give it a shot on Itch.io.
Jonas Hietala
A Nice Weekend
I’ve had a pretty nice weekend. On Friday MLG Orlando began and I’ve been staying up to 2 and...
over a year ago
I’ve had a pretty nice weekend. On Friday MLG Orlando began and I’ve been staying up to 2 and sleeping until at least 10 the last days. My inner night-owl is very happy about it, my early-rising girlfriend perhaps not as much, but I think she’s a bit understanding?
On Saturday we...
computers are bad
2024-10-26 buy payphones and retire
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress...
a month ago
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress watches, AI-generated SEO spam websites... marginally
legal and ethical passive income schemes, that serve to generate that income
mostly for their promoters, can feel like a...
Home on Erik...
We're hiring at Better
Just a quick note that my team is always hiring at Better. A lot of new people have been joining the...
over a year ago
Just a quick note that my team is always hiring at Better. A lot of new people have been joining the team here in NYC lately—the tech team has actually grown from 35 to 60 in just ~3 months.
Arduino Blog
This nature-inspired display reacts to ambient sounds
We all need ways to calm down and relax, and few things are as effective as nature itself. Taking...
a week ago
We all need ways to calm down and relax, and few things are as effective as nature itself. Taking inspiration from organic patterns and smooth, flowing waves, dzeng on Instructables has built an LED wall light that responds in real-time to the sounds within a room. The project...
Christian Selig
Introducing Tiny Storage: a small, lightweight UserDefaults replacement
Hey I'm a developer not an artist
Following my last blog post about difficulties surrounding...
2 months ago
Hey I'm a developer not an artist
Following my last blog post about difficulties surrounding UserDefaults and edge cases that lead to data loss (give it a read if you haven’t, it’s an important precursor to this post!), I wanted to build something small and lightweight that...
Posts on Made of...
A Very Subtle Bug
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for...
over a year ago
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for complex reasons”. As a class about designing and building complex systems, it’s a reminder that failure modes are subtle and often involve strange interactions between multiple parts...
Louwrentius
Redhat explains why chroot is not a security feature
I came across this Redhat security blog post that explains why the chroot command has it's uses, but...
over a year ago
I came across this Redhat security blog post that explains why the chroot command has it's uses, but it isn't magic security pixie dust. Running an application from within a chrooted jail or just on a well-configured system would result in the same level of security.
Josh...
Ken Shirriff's blog
Inside an IBM/Motorola mainframe controller chip from 1981
In this article, I look inside a chip in the IBM 3274 Control Unit.1
But before I discuss the chip,...
5 months ago
In this article, I look inside a chip in the IBM 3274 Control Unit.1
But before I discuss the chip, I need to give some background on mainframes.
(I didn't completely analyze the chip, so don't expect a nice narrative or solid conclusions.)
Die photo of the Motorola/IBM SC81150...
lcamtuf’s thing
Shining light on photodiodes
Photodiodes are incredibly versatile, but commonly misused and misunderstood.
2 months ago
Photodiodes are incredibly versatile, but commonly misused and misunderstood.
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.
Home on Erik...
Modeling conversion rates using Weibull and gamma distributions
This is a blog post originally featured on the Better engineering blog. If you want to link to this...
over a year ago
This is a blog post originally featured on the Better engineering blog. If you want to link to this article or share it, please go to the original post URL! Separately, I'm sorry it's been so long with no posts on this blog.
Christian Selig
Using PHPickerViewController Images in a Memory-Efficient Way
PHPickerViewController is (in my opinion) one of the more exciting parts of iOS 14. We developers...
over a year ago
PHPickerViewController is (in my opinion) one of the more exciting parts of iOS 14. We developers now have a fully-fledged photo picker that we can just use, rather than having to spend a bunch of our time creating our own (much like SFSafariViewController did for developers and...
Louwrentius
Corsair CM PSU-750HX seems ok
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair...
over a year ago
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair CMPSU-750HX. One of the reasons is that Corsair states
that this PSU can withstand 50 degree Celcius in continuous operation on full
load.
The package is very, clean, with all the...
Applied Cartography
Keeping a technical edge
Someone emailed me in response to Two years as an independent technologist, in which I wrote:
I miss...
3 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...
Matt Blewitt
Shunn
The Shunn manuscript format is a set of guidelines for writers to follow when submitting manuscripts...
6 months ago
The Shunn manuscript format is a set of guidelines for writers to follow when submitting manuscripts to publishers. It was created by author William Shunn and is widely used in the publishing industry. Here is a brief demonstration of a tool I wrote to facilitate generating...
Good Enough
Jelly was #1 on Hacker News
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious...
a month ago
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious for it's mercurial population of tech-maybe-too-saavy experts. Jelly is a tough sell for some of them, those with the technical skill to pipe email at a low level through...
Arduino Blog
Receive an alert when your device goes offline in Arduino Cloud
You’re managing a network of IoT sensors that monitor air quality across multiple locations....
a month ago
You’re managing a network of IoT sensors that monitor air quality across multiple locations. Suddenly, one of the sensors goes offline, but you don’t notice until hours later. The result? A gap in your data and a missed opportunity to take corrective action. This is a common...
Louwrentius
Configuring, attacking and securing VRRP on Linux
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple...
over a year ago
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple routers in an active/passive configuration. If the primary router fails, the backup router takes over almost seamlessly.
This is how VRRP works:
Clients connect to a virtual...
Old Vintage...
Two tiny 65816 DTV consoles
The 21st century direct-to-TV game console: a dirt-cheap toy dragging poor ports of cherished games...
5 months ago
The 21st century direct-to-TV game console: a dirt-cheap toy dragging poor ports of cherished games to a more downmarket age. If you couldn't afford the real device, your alternative was these inexpensive, inadequate facsimiles faithful only to one's gauzy recollection. As their...
./techtipsy
Good reads
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule,...
a year ago
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule, Manager’s Schedule
a must-read for anyone working in a software development team. Helps
express what most of us have felt at some point in our careers.
The case of the 500-mile...
./techtipsy
techtipsy, now hosted on k-space!
This site is now hosted on infrastructure provided by k-space, a friendly hackerspace in Tallinn,...
a year ago
This site is now hosted on infrastructure provided by k-space, a friendly hackerspace in Tallinn, Estonia.
If you’ve been reading any of my previous posts, you might be wondering why I made that move, especially since I was
quite proud of hosting my website over a residential...
Jonas Hietala
The Top Idea
Recently I’ve been having a dozen ideas and projects I’ve been poking around with:
I wrote a simple...
over a year ago
Recently I’ve been having a dozen ideas and projects I’ve been poking around with:
I wrote a simple lua, later perl, which announced when a new day9 episode has come. Later I expanded it to search for new manga episodes, but now it’s broken and unfinished.
In an attempt to learn...
Arduino Blog
This small device enables users to feel braille through haptics
For the visually impaired community, most of their interactions on mobile phones are confined to...
7 months ago
For the visually impaired community, most of their interactions on mobile phones are confined to text-to-speech (TTS) interfaces that read portions of the screen aloud. Dynamic braille displays also exist as a tactile means of communication, but their prices can get close to...
Arduino Blog
Light up the holiday season, with a new Plug and Make Kit tutorial!
Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make...
2 weeks ago
Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make Kit, you can build an interactive LED light installation that reacts when someone walks by – perfect for spreading cheer and adding a high-tech twist to your decorations. This...
Home on Erik...
Predicting solar eclipses with Python
As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute...
8 months ago
As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute eclipses in Python. It turns out, ignoring some minor coordinate system head-banging, I was able to get something half-decent working in a couple of hours.
Applied Cartography
Gosling’s Old Rum
Virginia has draconian liquor laws, which means I have to get interesting bottles shipped from...
10 months ago
Virginia has draconian liquor laws, which means I have to get interesting bottles shipped from [REDACTED], a site on which I am very prone to judging a book by its cover; every month I'll end up purchasing a bottle of something purely because it looks interesting and I can...
Home on Erik...
Interviewing is a noisy prediction problem
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence...
over a year ago
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence in my ability to assess people. Let me just throw a couple of algorithm questions at a candidate and then I'll tell you if they are good or not!
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features.
I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Computer Ads from...
Vote for the April 2004 Plus Post Topic
If you are a paid subscriber, voting is open for one week
8 months ago
If you are a paid subscriber, voting is open for one week
Louwrentius
Did you know that RDP is as insecure as telnet?
Microsoft developed the remote desktop protocol in order to allow remote GUI-
based access to hosts....
over a year ago
Microsoft developed the remote desktop protocol in order to allow remote GUI-
based access to hosts. It is easy to pick on Microsoft and I do respect what
they have accomplished, however, it may not come as a surprise that they did
it all wrong with RDP in terms of security.
By...
Old Vintage...
MacLynx beta 5: UTF-8, pull-down menus and more dialogue boxes, oh my!
I've been working off and on doing further Mac-ification to my updated fork of MacLynx, the System...
a year ago
I've been working off and on doing further Mac-ification to my updated fork of MacLynx, the System 7-compatible port of the venerable text browser Lynx for classic 68K Macintoshes (and Power Macs) running A/UX 3.x or System 7.x and later. There's still more to do, but a lot has...
Home on Erik...
How to build up a data team (everything I ever learned about recruiting)
During my time at Spotify, I've reviewed thousands of resumes and interviewed hundreds of people....
over a year ago
During my time at Spotify, I've reviewed thousands of resumes and interviewed hundreds of people. Lots of them were rejected but lots of them also got offers. Finally, I've also had my share of offers rejected by the candidate.
computers are bad
2023-03-24 docker
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a...
a year ago
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a lot of advantages. But I am supposedly a DevOps
professional, and so I will occasionally indulge in giving DevOps advice... or
at least opinions, which are sort of like advice but...
Vitalik Buterin's...
Plurality philosophy in an incredibly oversized nutshell
4 months ago
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