Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 5: motor/tachometers
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears...
10 months ago
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears and cams for its mathematics. It was a key part of military planes such as the F-101 and the F-111 fighters,
computing
airspeed, Mach number, and other "air data".
The rotating...
./techtipsy
About the time my ThinkPad T430 ran with an external GPU
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in...
6 months ago
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in 2016 when the first university scholarship money dropped,
and it’s still my backup laptop of choice.
Around 2017 I did something every reasonable poor computer science...
Posts on Made of...
Configuring dnsmasq with VMware Workstation
I love VMware workstation. I keep VMs around for basically every version of every major Linux...
over a year ago
I love VMware workstation. I keep VMs around for basically every version of every major Linux distribution, and use them heavily for all kinds of kernel testing and development.
This post is a quick writeup of my networking setup with VMware Workstation, using dnsmasq to assign...
Vitalik Buterin's...
Why Proof of Stake (Nov 2020)
over a year ago
Willem's Blog
The best keyboard for iPad
While everybody is raving about the Magic Keyboard there is something to be said for the...
over a year ago
While everybody is raving about the Magic Keyboard there is something to be said for the "mouse-less" Smart Keyboard Folio. Read along for a detailed analyses based on actual iPad use.
computers are bad
2024-03-01 listening in on the neighborhood
Last week, someone leaked a spreadsheet of SoundThinking sensors to
Wired.
You are probably asking...
10 months ago
Last week, someone leaked a spreadsheet of SoundThinking sensors to
Wired.
You are probably asking "What is SoundThinking," because the company rebranded
last year. They used to be called ShotSpotter, and their outdoor acoustic
gunfire detection system still goes by the...
Neil Madden
From KEMs to protocols
This is the third part of my series on Key Encapsulation Mechanisms (KEMs) and why you should care...
over a year ago
This is the third part of my series on Key Encapsulation Mechanisms (KEMs) and why you should care about them. Part 1 looked at what a KEM is and the KEM/DEM paradigm for constructing public key encryption schemes. Part 2 looked at cases where the basic KEM abstraction is not...
GitButler
The New Era of Town Hall Chat
We're moving from Slack to Discord so we can involve our community more. Here's how we did it and...
4 months ago
We're moving from Slack to Discord so we can involve our community more. Here's how we did it and more importantly, why.
Matt Blewitt
On That Okta LDAP Bug
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance...
2 months ago
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance of sensible defaults.
Notes on software...
Container scheduling strategies for integration testing 14 different databases in Github Actions
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.
Lighthouse Blog
Updates November 4: Free newsletter to RSS tool
2 months ago
Posts on Made of...
todo.pl ratmenu
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t...
over a year ago
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t use a mac, but I don’t see why linux users shouldn’t get fun toys to. So I hacked up the following two-liner that uses todo.pl and ratmenu to pop up a list of tasks, and mark one...
lcamtuf’s thing
A 15-minute intro to involute gears
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their...
a month ago
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their shape?
Construction Physics
Energy Cheat Sheet
Building an intuition about energy
a week ago
Building an intuition about energy
Willem's Blog
Go Viral on X
Learn how to go viral on X using simple logic in creating engaging posts.
a month ago
Learn how to go viral on X using simple logic in creating engaging posts.
Notes on software...
Is it worth writing about?
You acquire a skill or experience through time and effort,
then downplay the impact of writing and...
over a year ago
You acquire a skill or experience through time and effort,
then downplay the impact of writing and sharing the learning
process.
Professionals seem naturally to imagine a high bar for what
is worth writing about.
I think that's misguided. This article is not criticism of folks...
Vitalik Buterin's...
A Note On Charity Through Marginal Price Discrimination
over a year ago
Matt Blewitt
Death, and Utsuge
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and...
2 months ago
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and Japanese visual novels.
Simply Explained
Migrating This Blog From Jekyll to Eleventy
Jekyll has been powering this site for many years now. It replaced my WordPress setup, and I haven't...
over a year ago
Jekyll has been powering this site for many years now. It replaced my WordPress setup, and I haven't looked back. Over the last few months, I have become fed up with Jekyll. It's slowing me down. Time to replace it with something new and shiny!
Vitalik Buterin's...
The near and mid-term future of improving the Ethereum network's permissionlessness and...
7 months ago
somenice
Painting of Russet Lake
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the...
4 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...
Neil Madden
API Security in Action is published!
I wasn’t expecting it so quickly, so it caught me a little off guard, but API Security in Action is...
over a year ago
I wasn’t expecting it so quickly, so it caught me a little off guard, but API Security in Action is now finally published. PDF copies are available now, with printed copies shipping by the end of the month. Kindle/ePub take a little bit longer but should be out in a few weeks...
Opsbros
Saibah Securitah
It's always okay to buy the domain for the meme!
over a year ago
It's always okay to buy the domain for the meme!
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...
./techtipsy
Stupid project ideas: the War Machine
LinusTechTips has some pretty great videos about building
insane PC and server setups, such...
over a year ago
LinusTechTips has some pretty great videos about building
insane PC and server setups, such as:
unboxing and deploying petabytes of storage
7 gamers, 1 CPU
building sleeper PC-s
testing sketchy CPU-s
opening up a 100TB SSD
I have the ideas, but not the budget of LinusTechTips, so...
Arduino Blog
Adding proximity unlock to an old car with the Arduino Nano 33 BLE
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically...
5 months ago
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically unlocks the doors when the driver approaches while carrying their key fob. When paired with a push-to-start ignition switch, the driver never has to take their keys out of their pocket....
./techtipsy
Life is maintenance, maintenance is life
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building...
a year ago
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building things.
When I was still an inexperienced junior developer who barely survived operating in a Linux
environment and saw backend development as a black box, I was happy to get...
Ken Shirriff's blog
Inside a ferroelectric RAM chip
Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special...
3 months ago
Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special "ferroelectric" material.
Ferroelectric memory is nonvolatile like flash memory, able to hold its data for decades.
But, unlike flash, ferroelectric memory can write data...
Avestura's Blog
An opinion on what's a good general-purpose programming language
What features should a programming language have to be ideal, in my opinion?
over a year ago
What features should a programming language have to be ideal, in my opinion?
Yazin Alirhayim
Braindump
Been having a hard time lately focusing.
It’s like whenever I start doing anything of any...
over a year ago
Been having a hard time lately focusing.
It’s like whenever I start doing anything of any significance I get derailed, and fall into this spiral of thought where I reconsider whether what I’m about to do matters, why it would, and whether I could be doing something else that...
Jonas Hietala
Ludum Dare 22 results!
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was...
over a year ago
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was quite happy with it.
#24 Community 3.71
#40 Fun 3.38
#49 Theme 3.69
#65 Overall 3.42
#95 Humor 2.82
#167 Mood 2.92
#247 Innovation 2.69
#338 Audio 2.23
#340 Graphics 2.62
#376...
Matt Blewitt
Table Stakes
This is a short post on what I see are table stakes for any new user-facing service, security-wise....
over a year ago
This is a short post on what I see are table stakes for any new user-facing service, security-wise. Mostly focused on user-focused, rather than intra-service, considerations.
Style over Substance
My Home Assistant setup (2023 edition)
For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s...
a year ago
For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s become such a hobby of mine that I’ve even started coding add-ons for it. While there are other popular automation platforms, Home Assistant’s versatility blows the rest out of the...
Applied Cartography
You should build this:
A prior iteration of this site had a page called "Project ideas" that listed a bunch of things that...
2 months ago
A prior iteration of this site had a page called "Project ideas" that listed a bunch of things that I'd like to build. This was a good idea and useful in its own right (I got a few people to build companies and projects based on them, and it was a useful avenue by which folks...
Jonas Hietala
Ludum Dare 29 Entry
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally...
over a year ago
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally unprepared, but I did setup a setup which actually compiles. I never got audio to run but hopefully I can manage something.
Repository: https://github.com/treeman/LD29. Going for C++ this...
GitButler
Git Merge 2024
Git Merge 2024 has wrapped and we all had a heck of a good time. Here's the overview.
3 months ago
Git Merge 2024 has wrapped and we all had a heck of a good time. Here's the overview.
Home on Erik...
Approximate nearest news
As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm...
over a year ago
As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm the author of a Python package called Annoy.
I've also built a benchmark suite called ann-benchmarks to compare different packages.
Vitalik Buterin's...
From prediction markets to info finance
a month ago
Push to Prod
When Overwhelmed, Make a List of Questions
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
5 months ago
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
Vitalik Buterin's...
Why we need wide adoption of social recovery wallets
over a year ago
Computer Ads from...
Black Friday - Happy Birthday sale
Let's mix things up!
a month ago
Jonas Hietala
2019 in Review
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on...
over a year ago
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on the past year, and see that I did indeed do some things, and to look ahead a little.
2019 Non-Geek Achievements
Played around with Isidor.
It’s hard to describe how happy a kid can...
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
The security risk of vendor-supplied default SSL certificates
Often, software comes supplied with some default SSL certificate, for testing
purposes, such as...
over a year ago
Often, software comes supplied with some default SSL certificate, for testing
purposes, such as those 'snake oil' certificates (they are called snake oil
certificates for a reason). In practice, I often encounter usage of such
certificates. People may seem to think that as long...
./techtipsy
So you need some tech tips...
I’m an experienced software developer located in Estonia 🇪🇪🇪🇺 .
I don’t simply get things done,...
over a year ago
I’m an experienced software developer located in Estonia 🇪🇪🇪🇺 .
I don’t simply get things done, I get them done done.
Here’s what I bring to the table:
software development skillset
building useful solutions
monitoring, observability
incident response
I know how to use...
Willem's Blog
One year on the ultimate commuter bike
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike...
over a year ago
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike after one year of extensive use through winter and summer.
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...
Birchtree
Apple’s 2024 report card: iPad
This is the second in a series of posts reviewing Apple’s 2024 across their major product lines. I...
a week ago
This is the second in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s iPad report card here.
iPad Pro
I'm so happy I get to say it was a
Matt Mullenweg
Cloudflare Stories
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s...
2 months ago
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s incredible story about Tim Jenkin, who created a secure communication protocol for the African National Congress to overthrow the apartheid regime in South Africa. Cloudflare’s CTO,...
Arduino Blog
The web-based Arduino Lab for MicroPython Editor is out! With Chromebook support to code Alvik and...
We’re excited to announce the release of the web-based version of the Arduino Lab for MicroPython...
2 months ago
We’re excited to announce the release of the web-based version of the Arduino Lab for MicroPython Editor. This lightweight platform makes it even easier to code with MicroPython using Arduino hardware such as Alvik, Nano ESP32, Nano RP2040 Connect, Nano 33 BLE Sense – and more!...
Willem's Blog
Your own addressbook and calendar cloud
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data...
over a year ago
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data and share it between your devices.
Jonas Hietala
Offset coordinates in Krita with Xinerama
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want...
over a year ago
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want to learn how to draw. And what better way to do it than with a drawing tablet, while satisfying my need for new things?
With little experience I boldly set forth and I found a...
Louwrentius
Smoking coolermaster Silent Pro M 600W TN6M50
So I was just messing around on my work station, when suddenly I smelled the
smell any person...
over a year ago
So I was just messing around on my work station, when suddenly I smelled the
smell any person familiar with electronics fears. The smell of some electrical
component burning.
The whole upper floor smelled like something was smoldering. So I shut down
both my storage servers....
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…
Matt Mullenweg
WPAI
Very excited to share that we’ve acquired WPAI and the team is joining Automattic. They have some...
3 weeks ago
Very excited to share that we’ve acquired WPAI and the team is joining Automattic. They have some very cool products including CodeWP, AgentWP, and WP.chat.
Jonas Hietala
Why Cryptocurrencies? is now available in print
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve...
over a year ago
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve undertaken.
My book ‘Why Cryptocurrencies?’ is released in print today! It’s my attempt to explain what cryptocurrencies are and what problems they solve, in a simple and...
Posts on Made of...
Reflections on software performance
At this point in my career, I’ve worked on at least three projects where performance was a defining...
over a year ago
At this point in my career, I’ve worked on at least three projects where performance was a defining characteristic: Livegrep, Taktician, and Sorbet (I discussed sorbet in particular last time, and livegrep in an earlier post). I’ve also done a lot of other performance work on the...
Posts on Made of...
Distributed cloud builds for everyone
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous....
over a year ago
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous. All the major cloud providers offer generous free tiers, and services like GitHub Actions offer free compute resources to open-source repositories. So why do so many developers...
computers are bad
2024-03-09 the purple streetscape
Across the United States, streets are taking on a strange hue at night. Purple.
Purple streetlights...
10 months ago
Across the United States, streets are taking on a strange hue at night. Purple.
Purple streetlights have been reported in Tampa, Vancouver, Wichita, Boston.
They're certainly in evidence here in Albuquerque, where Coal through downtown
has turned almost entirely to mood lighting....
Jonas Hietala
Going to University
I mentioned in the last post that I’m going to the university, which might explain my lack of...
over a year ago
I mentioned in the last post that I’m going to the university, which might explain my lack of activity here and for that I’m sorry. It’s not as hard as I had imagined, and I don’t have that much in school but there’s still a lot that’s going on. For example now how to make...
Electronics etc…
Guide Technology GT300 Frequency Standard Teardown
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [...
9 months ago
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Louwrentius
Linux Software RAID benchmarking script
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use...
over a year ago
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use my
new benchmark script. I used this script to create these results.
You may need to configure some values within the header of this file to make
it fit your enviroment.
...
Engineers Need Art
Mooncraft 2000
A web-based game, Mooncraft 2000 is released.
over a year ago
A web-based game, Mooncraft 2000 is released.
Jonas Hietala
Fun or Frustration? Ludum Dare 33
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule,...
over a year ago
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule, negotiated with my better half and everything is set up for epicness.
At first the idea was to make a game in rust, even tough I basically haven’t used it in almost a year, but when I...
Computer Ads from...
Comics from 1983/08 Today Mag
Time for some levity. The following comics were all found in the August 1983 issue of Today...
9 months ago
Time for some levity. The following comics were all found in the August 1983 issue of Today magazine. Enjoy! What computer ads would you like to see in the future? Please comment below. If you enjoyed it, please share it with your friends and relatives. Thank you.
Vitalik Buterin's...
The promise and challenges of crypto + AI applications
11 months ago
Applied Cartography
Postgres batch enqueuing in ten lines of Django
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count =...
a year ago
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count = queryset.count()
if count == 0:
time.sleep(10)
return
with transaction.atomic():
batch = list(
queryset.select_for_update(of=("self",),...
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
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,...
3 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...
Abort Retry Fail
The History of the IBM 5100
IBM's First Personal Computer
a year ago
IBM's First Personal Computer
Jonas Hietala
Long Term Goals Update
During my vacation I suddenly got a bunch of “life crisis” type thoughts in an almost panic inducing...
over a year ago
During my vacation I suddenly got a bunch of “life crisis” type thoughts in an almost panic inducing intensity. They were mostly thoughts about not having accomplished anything and that the future looks bleak and meaningless and it’s not worth to do anything. As usual they are...
Electronics etc…
Increasing Frequency Counter Precision with Linear Regression
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [...
a year ago
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Applied Cartography
Klarna: nineteen years, twenty billion kroner
I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay...
a month ago
I tend to ignore the entire genre of what we now refer to as BNPL businesses — Affirm, Afterpay (RIP), Klarna, et al — not for any particular sin I feel that they are committing, but because they in my mind are much less interesting companies with less volatile upside than the...
latest projects -...
Light comms on the 003
[Hardware] Tiny terrahertz transmissions
5 months ago
[Hardware] Tiny terrahertz transmissions
Willem's Blog
And... there is light!
Discover how one cyclist's quest for the perfect lighting solution led to a custom installation of...
a year ago
Discover how one cyclist's quest for the perfect lighting solution led to a custom installation of dynamo powered lights, ensuring a bright and hassle-free ride on the darkest roads.
Old Vintage...
CAP-X and COMP-X: how the Tandy Pocket Computers got a sucky Japanese assembler
I grew up primarily with the Commodore 64, where if you wanted to do anything really cool and...
10 months ago
I grew up primarily with the Commodore 64, where if you wanted to do anything really cool and useful, you had to do it in 6502 assembly language. Today I still write 6502 assembly, plus some Power ISA and even a little TMS9900. I like assembly languages and how in control of the...
Computer Ads from...
The Grand Stand
Joystick Stabilizer Support & Score Enhancer
a month ago
Joystick Stabilizer Support & Score Enhancer
Posts on Made of...
Conkeror
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension,...
over a year ago
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension, but nowadays it’s a standalone app built on top of Mozilla’s xulrunner, so it uses the Gecko rendering engine.
What it is, is an emacs implemented in Javascript, for the web. This...
Willem's Blog
Data versus Feeling
Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to...
2 weeks ago
Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to find out the differences!
Louwrentius
Tunneling Elixir cluster network traffic over Wireguard
Introduction
The other day I was supporting a customer with an Elixir-based platform that would make...
a year ago
Introduction
The other day I was supporting a customer with an Elixir-based platform that would make use of Elixir libcluster, so messages on one host can be passed to other hosts. This can - for example - enable live updates for all users, even if they are not communicating with...
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.
Arduino Blog
Assess your aquarium’s health with an AI-enabled ultrasonic sensor
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can...
8 months ago
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can accumulate, which leads to a loss in fish and plant populations if not fixed quickly. But because most water testing, especially in aquariums, is done primarily on the surface, vital...
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.
Vitalik Buterin's...
STARKs, Part II: Thank Goodness It's FRI-day
over a year ago
Jonas Hietala
MenuCity
This game is called MenuCity and it’s a numbers game. Well that’s the theme anyway. The game pretty...
over a year ago
This game is called MenuCity and it’s a numbers game. Well that’s the theme anyway. The game pretty much held to what I planned for - except that it deviated from the theme -again- a bit.
My game is very reminiscent of the old calculator classic Block Dude made by Brandon...
watchTowr Labs
We Spent $20 To Achieve RCE And Accidentally Became The Admins Of .MOBI
Welcome back to another watchTowr Labs blog. Brace yourselves, this is one of our most astounding...
3 months ago
Welcome back to another watchTowr Labs blog. Brace yourselves, this is one of our most astounding discoveries.
Summary
What started out as a bit of fun between colleagues while avoiding the Vegas heat and $20 bottles of water in our Black Hat hotel rooms - has now seemingly...
Louwrentius
Performance monitoring using dstat
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is...
over a year ago
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is currently happening on your Linux box.
Dstat allows you to monitor the system load, disk troughput, disk io, network
bandwith, and many more items.
Dstat is so valuable because it...
./techtipsy
OpenWRT, ISP modem and dynamic IP addresses: how to fix connectivity issues without rebooting your...
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem...
7 months ago
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem (Technicolor CGA2121, DOCSIS 3.0). It’s running in bridge
mode,
meaning that all it does is convert the signal running over the coax cable
into plain old Ethernet.
My main...
Jonas Hietala
addwatch: resource exhausted
While tampering with Hakyll and running site preview I stumbled upon this error message:
site:...
over a year ago
While tampering with Hakyll and running site preview I stumbled upon this error message:
site: addWatch: resource exhausted (No space left on device)
At first I tried to clear /tmp but, so clearly the device did have some space left. After a bit of googling I found a solution...
Old Vintage...
A mostly merry Southern Hemisphere Commodore Christmas
A merry Christmas and happy holidays from the Southern Hemisphere, where it's my year to be with my...
a week ago
A merry Christmas and happy holidays from the Southern Hemisphere, where it's my year to be with my wife's family in regional New South Wales, Australia. A friend of the family had an "old Commodore" in their house and asked if I wanted it. Stupid question, yeah?
The...
Notes on software...
Responsibility and ownership
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn...
over a year ago
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn over ownership, don't expect folks to
take responsibility. When you grant ownership and set expectations,
you'll be astounded what folks will accomplish without you.
I am astounded.
Jonas Hietala
My first theme: Addictive Gaming
In true experimental spirit I’ll now announce the theme for my first game: Addictive Gaming. I won’t...
over a year ago
In true experimental spirit I’ll now announce the theme for my first game: Addictive Gaming. I won’t be following the lead from the Experimental Gameplay Project’s site but I will follow their three laws (7 days, alone, themes).
Puh… my first game! Wish me luck =)
computers are bad
2024-01-06 usb on the go
USB, the Universal Serial Bus, was first released in 1996. It did not achieve
widespread adoption...
12 months ago
USB, the Universal Serial Bus, was first released in 1996. It did not achieve
widespread adoption until some years later; for most of the '90s RS-232-ish
serial and its
awkward sibling the parallel port
were the norm for external peripheral. It's sort of surprising that USB...
Abort Retry Fail
The History of Commodore, Part 4
The Amiga, The Decline, The Fall
a year ago
The Amiga, The Decline, The Fall
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
Notes on software...
Administering Kubernetes is hard
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to...
over a year ago
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to set up.
eksctl is a good tool for folks who don't want to
spend hours/days/weeks debugging VPC configuration in 1000s of lines
of CloudFormation. None of the other tools seem to be...
Simply Explained
Make Your Garage Door Opener Smart: Shelly 1, ESPHome and Home Assistant
I've been adding more and more devices to my smart home lately, so naturally, my garage door opener...
over a year ago
I've been adding more and more devices to my smart home lately, so naturally, my garage door opener had to follow. But instead of swapping it out for a new unit, I used a Shelly 1 and a cheap door contact sensor to make it smart for less than $20!It runs ESPHome (open-source, no...
Louwrentius
Why I still won't switch to Linux and keep my Mac
The current state of Linux is amazing. If we take a look at, for example,
Ubuntu Linux, we have to...
over a year ago
The current state of Linux is amazing. If we take a look at, for example,
Ubuntu Linux, we have to admit that the Linux desktop is really becoming a
nice, user-friendly environment. I'm truly starting to like what I see. I
considered whiping Mac OS X from my macbook, but there...
Notes on software...
Writing a simple JSON path parser
Let's say we want to implement a simple list filtering language so
we can enter a.b = 12 and return...
over a year ago
Let's say we want to implement a simple list filtering language so
we can enter a.b = 12 and return only results in a
list where the a column is an object that contains a
field b that is set to the value 12. What would a
filter(jsonPath, equals, listOfObjects) function...
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...
axio.ms
Pickle plus mains
Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with...
over a year ago
Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with some science.
Our experiment was to observe the conduction of electricity through a pickle, using salt ions. We connected a pickle to the mains supply. Pickles have a strong...
Ian's Blog
Having a Website Used to Be Fun
According to the Wayback Machine, I launched my website over a decade ago, in 2013. Just that...
2 months ago
According to the Wayback Machine, I launched my website over a decade ago, in 2013. Just that thought alone makes me feel old, but going back through the old snapshots of my websites made me feel a profound feeling of longing for a time when having a website used to be a novel...
OH8HUB’s Substack
Spring day ham radio activation in Hiastinlahti, Finland
Hiastinlahti is a bay where river Iijoki flows into Bothnian Bay, the northernmost part of Gulf of...
a year ago
Hiastinlahti is a bay where river Iijoki flows into Bothnian Bay, the northernmost part of Gulf of Bothnia. This area is a Nature 2000 nature reserve area and good spot for bird watching. The area has a two kilometer long nature trail with fireplace, lean-to and toilet. From the...
Style over Substance
How to build your own Goodman ZONE camera, part 2
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her...
over a year ago
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her range of open-source camera models, using the existing Mamiya Press lens series for glass and the Mamiya RB67 backs to hold film. She sells pre-printed kits that contain all the...
Jonas Hietala
Bitcoin Cash needs a Specification
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a...
over a year ago
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a bunch of heated debates between the different Bitcoin Cash developer teams. Something that stood out from all the noise was problems with communications and a lack of specification...
Old Vintage...
An Apple district manager's Macintosh Portable in 1989-91 (featuring GEIS AppleLink and a look at...
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than...
10 months ago
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than what it has on it: a beta version of System 6.0.6 (the doomed release that Apple pulled due to bugs), Apple sales databases, two online services — the maligned Mac Prodigy client,...
Willem's Blog
Do amazing things with a focused mind
Read about my experience during the workshop I got as a birth day present involving the Wim Hof...
over a year ago
Read about my experience during the workshop I got as a birth day present involving the Wim Hof Method.
Louwrentius
The iPad will be the death of Flash
So Apple finally released their tablet computer: the iPad. One of the most
debated drawbacks is that...
over a year ago
So Apple finally released their tablet computer: the iPad. One of the most
debated drawbacks is that it lacks support for Adobe Flash. The iPhone does
not support Flash either, and since the iPad is based on the iPhone OS, this
should not come as a surprise.
Now many people see...
Yazin Alirhayim
The Meem app: it sucks
If you’re a “digital only” bank like Meem, the app your customers use is all they see: it’s like a...
over a year ago
If you’re a “digital only” bank like Meem, the app your customers use is all they see: it’s like a virtual 🏦 branch.
That’s fitting, because you know what my impression of meem is as a user? When I open up their app, it feels like walking into a crowded butcher shop, with...
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
7 months ago
Home on Erik...
The mathematical principles of management
I've read about 100 management books by now but if there's something that always bothered me it's...
over a year ago
I've read about 100 management books by now but if there's something that always bothered me it's the lack of first principles thinking. Basically it's a ton of heuristics. And heuristics are great, but when you present heuristics as true objectives, it kind of clouds the...
Louwrentius
71 TiB DIY NAS based on ZFS on Linux
This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB...
over a year ago
This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB NAS (17 TiB). With a storage capacity four times higher than the original and an incredible read (2.5 GB/s)/write (1.9 GB/s) performance, it's a worthy successor.
Purpose
The...
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...
Home on Erik...
Better precision and faster index building in Annoy
Sometimes you have these awesome insights. A few days ago I got an idea for how to improve index...
over a year ago
Sometimes you have these awesome insights. A few days ago I got an idea for how to improve index building in Annoy.
For anyone who isn't acquainted with Annoy – it's a C++ library with Python bindings that provides fast high-dimensional nearest neighbor search.
Avestura's Blog
Using Tor outside of the Tor Browser
This post shows how to run Tor with a simple PowerShell script and use it in other apps like...
over a year ago
This post shows how to run Tor with a simple PowerShell script and use it in other apps like Telegram...
Arduino Blog
Team Ikaro scores success with the Arduino Nano RP2040 Connect!
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in...
3 months ago
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in Rome, sharing a strong passion for electronics and turning heads in the world of robotics! Specializing in Soccer Lightweight games (where robot-soccer players compete to score goals...
Notes on software...
Interview With Phil of DataStation
This is an external interview. Click
here
if you are not redirected.
over a year ago
This is an external interview. Click
here
if you are not redirected.
Notes on software...
Checking linearizability in Go
You want to check for strict consistency
(linearizability)
for your project but you don't want to...
2 months ago
You want to check for strict consistency
(linearizability)
for your project but you don't want to have to deal with the
JVM. Porcupine,
used by a number of real-world systems like etcd and TiDB, has you
covered!
Importantly, neither Jepsen projects nor Porcupine can...
Applied Cartography
Notes from April
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past...
8 months ago
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past two years as an independent technologist.
On the media side of things: brief words on Murderville (meh), The Parallax View (incredible), This is Personal (meh), Cribsheet...
Old Vintage...
Pretty pictures, bootable floppy disks, and the first Canon Cat demo?
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to...
5 months ago
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to get into the operating system and pull some tricks.
from our historical discussion of the Canon Cat, the Cat was designed by Jef Raskin as a sophisticated user-centric computer...
Jonas Hietala
The Coinparty hackathon, take two
In December I declared that I would enter a Bitcoin Cash hackathon and I was excited to give my...
over a year ago
In December I declared that I would enter a Bitcoin Cash hackathon and I was excited to give my procrastination a kick in the balls. Unfortunately the hackathon was postponed to January just an hour later. Maybe the organizers didn’t think my project was exciting enough or...
Arduino Blog
Does your sample contain DNA or RNA? DIYNAFLUOR can tell you on a budget
Lab equipment is — traditionally at least — tremendously expensive. While there are understandable...
2 weeks ago
Lab equipment is — traditionally at least — tremendously expensive. While there are understandable reasons for those costs, they are prohibitive to anyone operating outside of a university or corporate lab. But as the “citizen science” movement has grown, we’ve seen more and more...
Matt Mullenweg
Carmack & Rogan
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on...
a month ago
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on YouTube again, which means the gems from the archives can now pop up. I was alerted to this conversation between Joe Rogan and John Carmack, and it’s pure gold. I know I’m five...
Engineers Need Art
Virtual Pinhead
Discovering virtual pinball, a hobbyist community devoted to it, and building a full-size virtual...
9 months ago
Discovering virtual pinball, a hobbyist community devoted to it, and building a full-size virtual pinball cabinet.
Willem's Blog
Google Analytics vs AWStats
Comparing Google Analytics with AWStats to find out where they differ and which is better.
over a year ago
Comparing Google Analytics with AWStats to find out where they differ and which is better.
Willem's Blog
Computer says no
The weather app indicating rain caused an empty bike lane this morning, making me wonder about the...
over a year ago
The weather app indicating rain caused an empty bike lane this morning, making me wonder about the power we put into these things.
Arduino Blog
This UNO R4 WiFi-controlled device streamlines a restaurant’s online order system
Most successful restaurants operating today have to take advantage of online ordering, as a huge...
4 months ago
Most successful restaurants operating today have to take advantage of online ordering, as a huge chunk of customers have switched to takeout and delivery. But point-of-sale (POS) systems don’t always integrate well into a kitchen’s workflow and that can lead to missed orders —...
Home on Erik...
Luigi conquering the world
I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself...
over a year ago
I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself a Luigi costume a month in advance. Only to realize I was going to be out of town the whole weekend.
Neil Madden
Digital signatures and how to avoid them
Wikipedia’s definition of a digital signature is: A digital signature is a mathematical scheme for...
3 months ago
Wikipedia’s definition of a digital signature is: A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the...
./techtipsy
TOMO M4: probably the coolest power bank I've owned
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting...
a year ago
A friend once showed me a power bank that was so cool that I had to get one
myself. Ended up getting two, and here’s why.
This post is not sponsored.
Removable batteries
Let’s start with the feature that I appreciate the most: removable batteries!
The TOMO M4 accepts up to 4...
Posts on Made of...
New Blog Location
I finally got fed up with Blogger, and am moving this blog to live on Wordpress hosted off of...
over a year ago
I finally got fed up with Blogger, and am moving this blog to live on Wordpress hosted off of scripts.mit.edu. In the process of converting everything over and setting up Wordpress I’ve decided I hate it, but hopefully I hate it less than I hate Blogger. We’ll see.
I’ve also...
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...
Posts on Made of...
BlackHat/DEFCON 2011 talk: Breaking out of KVM
I’ve posted the final slides from my talk this year at DEFCON and Black Hat, on breaking out of the...
over a year ago
I’ve posted the final slides from my talk this year at DEFCON and Black Hat, on breaking out of the KVM Kernel Virtual Machine on Linux.
Virtunoid: Breaking out of KVM from Nelson Elhage [Edited 2011-08-11] The code is now available. It should be fairly well-commented, and...
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...
Notes on software...
Obsession
In your professional and personal life, I don't believe there is a stronger motivation than having...
4 months ago
In your professional and personal life, I don't believe there is a stronger motivation than having something in mind and the desire to do it. Yet the natural way to deal with a desire to do something is to justify why it's not possible.
"I want to read more books but nobody reads...
./techtipsy
Self-hosting Wikipedia using Kiwix
Do you have a need to host Wikipedia on your computer?
Or a StackExchange site, like Super...
over a year ago
Do you have a need to host Wikipedia on your computer?
Or a StackExchange site, like Super User?
It’s easier than you think!
Step 1: download stuff!
The Kiwix project provides ZIM files for many popular websites, including Wikipedia.
These files can be downloaded over at Kiwix...
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...
8 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...
Willem's Blog
Inspiration from a child
Explore the world together with your kids and reap the rewards of adventure and fun!
over a year ago
Explore the world together with your kids and reap the rewards of adventure and fun!
Louwrentius
FFmpeg performance on a Core i7 920 @ 3.6 Ghz
The system i'm running is a Core i7 920 @ 3.6 Ghz.
I am transcoding a DVD (Grave Of The Fire Flies)...
over a year ago
The system i'm running is a Core i7 920 @ 3.6 Ghz.
I am transcoding a DVD (Grave Of The Fire Flies) to iPod format (640x480
x264).
Thread support is enabled, to FFmpeg uses about 250% CPU. That's 2.5 of the 4
cores available. If possible, I would have liked to see it use all four...
Christian Selig
More Efficient/Faster Average Color of Image
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of...
over a year ago
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of why you might want this!
Finding the average color of an image is a nice trick to have in your toolbelt for spicing up views. For instance on iOS, it’s used by Apple to make their...
Vitalik Buterin's...
Moving beyond coin voting governance
over a year ago
Notes on software...
Thinking about functional programming
Someone on Discord asked about how to learn functional programming.
The question and my initial...
a year ago
Someone on Discord asked about how to learn functional programming.
The question and my initial tweet on the subject prompted an
interesting
discussion
with Shriram
Krishnamurthi and other folks.
So here's a slightly more thought out exploration.
And just for backstory sake: I...
Louwrentius
Parallel / distributed password cracking with John the Ripper and MPI
This article has been updated to reflect the changes for John version 1.7.8 as released in june...
over a year ago
This article has been updated to reflect the changes for John version 1.7.8 as released in june 2011.
The most important change is the fact that MPI support is now integrated in the jumbo patch.
The original John the Ripper off-line password cracker only uses a single processor...
Engineers Need Art
Soft Dorothy Software — Shareware Projects
Wherein I attempt to recover and restore old shareware code and program again like it's 1989.
4 months ago
Wherein I attempt to recover and restore old shareware code and program again like it's 1989.
Style over Substance
How to use a Phase One H20 digital back on a medium format Hasselblad V camera (500EL/M)
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my...
over a year ago
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my Hasselblad 500EL/M medium format camera. Or, simply put, I bought an expensive old gadget for my even older analog camera, making it a digital camera. A gadget that was released in the...
./techtipsy
Things I've learned during my self-hosting adventure
This is a list of lessons that I’ve learned while playing around with my computer setup during the...
over a year ago
This is a list of lessons that I’ve learned while playing around with my computer setup during the last 6-7 years or so.
USB connected storage is a bad idea when you are using BTRFS.
USB connected storage is still a bad idea when you are using ZFS, but it is at least much more...
Computer Ads from...
Small Systems Engineering's PETSPEED
Fast Enough for the Human Race
5 months ago
Fast Enough for the Human Race
Posts on Made of...
A Brief Introduction to termios
If you’re a regular user of the terminal on a UNIX system, there are probably a large number of...
over a year ago
If you’re a regular user of the terminal on a UNIX system, there are probably a large number of behaviors you take mostly for granted without really thinking about them. If you press ^C or ^Z it kills or stops the foreground program – unless it’s something like emacs or vim, in...
Opsbros
WiFi Binary Clock
Who doesn't love a classic Binary Clock? I remember getting one of these when I was in my 20's from...
over a year ago
Who doesn't love a classic Binary Clock? I remember getting one of these when I was in my 20's from ThinkGeek, and it was pride of place on my desk. LED's are a thing of beauty.
Louwrentius
'Linux: unattended installation with Debian preseeding'
Debian Linux provides a mechanism to install the operating
system without user intervention. This...
over a year ago
Debian Linux provides a mechanism to install the operating
system without user intervention. This mechanism is called 'preseeding' and is
similar to Red Hat Kick Start and Sun Solaris Jump Start.
The basic idea is that the installer is fed a recipe, according to which the
system...
Old Vintage...
Thou shalt follow these Vintage Computing Commandments
Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote...
11 months ago
Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote and release smoke. This is sometimes very hard to judge without a load, but they should be somewhere in the ballpark, verily, and you should get in the habit of checking any new...
Jonas Hietala
Plans for Summer of Code
My first summer job is now over, and after a weekend of rest, it is now time to plan for my second...
over a year ago
My first summer job is now over, and after a weekend of rest, it is now time to plan for my second summer job: IDA Summer of Code.
I will work a month, or 4 weeks, with contributing to rust! The only issue is, I have no idea where to start. I didn’t have a strict plan or a vision...
Arduino Blog
Innovative new tactile sensor helps assess fine motor skills
Fine motor skills correlate strongly with cognition and the accurate assessment of an individual’s...
7 months ago
Fine motor skills correlate strongly with cognition and the accurate assessment of an individual’s motor skills can be critical in diagnosing and treating a variety of conditions. But objective evaluation has been a challenge, as suitable sensors weren’t available. To help...
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...
Jonas Hietala
Let's build a VORON: Noise
The build is going well and the printer is printing tons of random stuff and I’m generally in awe of...
10 months ago
The build is going well and the printer is printing tons of random stuff and I’m generally in awe of how cool the printer is.
But there’s one thing that sucks: it’s damn loud.
I knew that it wouldn’t be silent, but I wasn’t prepared for this kind of noise.
Silent controller...
Good Enough
TIL: Listen for JavaScript events only once!
A common thing I find myself doing in Javascript is adding some event driven behavior that I only...
a year ago
A common thing I find myself doing in Javascript is adding some event driven behavior that I only want to happen once. Let’s say I have a big button that starts the process of lowering a certain spy into a pool of certain doom — I don’t want a second button press to awkwardly...
Home on Erik...
Simple sabotage for software
CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out...
a year ago
CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out various ways for infiltrators to ruin productivity of a company. Some of the advice is timeless, for instance the section about “General interference with Organizations and...
Jonas Hietala
Bugger
Ahhh… Finally another game! Theme of this beauty is Failure and your mission here is to avoid the...
over a year ago
Ahhh… Finally another game! Theme of this beauty is Failure and your mission here is to avoid the bugs. As a programmer the fight with those nasty bugs are a daily occurrence and now I’ve brought you a chance to kill those nasties too!
The gameplay wasn’t what I was planning on -...
Arduino Blog
Adjusting office chair height with simple voice commands
A month ago, ElectronicLab modified his office chair with an electric car jack, giving it motorized...
4 months ago
A month ago, ElectronicLab modified his office chair with an electric car jack, giving it motorized height adjustment. That worked well, but required that he push buttons to raise or lower the seat. Pushing those buttons is a hassle when one’s hands are full, so ElectronicLab...
watchTowr Labs
Veeam Backup & Response - RCE With Auth, But Mostly Without Auth (CVE-2024-40711)
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup &...
3 months ago
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup & Replication’. Unfortunately, so is every ransomware operator, given it's somewhat 'privileged position' in the storage world of most enterprise's networks. There's no point deploying...
Willem's Blog
Traffic shaping using iptables and tc
This month I responded to an automated alert indicating excessive bandwidth usage on a server,...
over a year ago
This month I responded to an automated alert indicating excessive bandwidth usage on a server, requiring me to apply traffic shaping to mitigate the traffic.
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...
./techtipsy
ThinkPad T40: it can still run modern Linux, for now
I recently busted out my old ThinkPad T40, the last of the OG IBM ThinkPads.
I picked it up some...
7 months ago
I recently busted out my old ThinkPad T40, the last of the OG IBM ThinkPads.
I picked it up some time around my university days because I liked collecting
ThinkPads at the time, and it was a nice complement to my existing ThinkPad T60
and T430.
The battery is dead, but everything...
Louwrentius
Speeding up Linux MDADM RAID array rebuild time using bitmaps
Update 2020: Please beware of the impact of random write I/O performance.
Please note that with a...
over a year ago
Update 2020: Please beware of the impact of random write I/O performance.
Please note that with a modern Linux distribution, bitmaps are enabled by default. They will not help speed up a rebuild after a failed drive. But it will help resync an array that got out-of-sync due to...
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
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 Halo helmet features an adjustable-transparency RGB-backlit visor
The Halo franchise is full of iconic designs, from vehicles like the Warthog to weapons like the...
a month ago
The Halo franchise is full of iconic designs, from vehicles like the Warthog to weapons like the Needler. But the armor, such as the Spartan armor worn by Master Chief, is arguably the most recognizable. The helmets are especially cool, and LeMaster Tech put his own unique spin...
Louwrentius
Migration from blogger to blogofile and disqus is complete
As stated in my previous post, I migrated all posts from blogger.com to my own host running...
over a year ago
As stated in my previous post, I migrated all posts from blogger.com to my own host running blogofile.
At the time of my previous post, I was not able to restore all comments made on my old blog. Thanks to some help
from disqcus I fixed an error on my behalf and all old comments...
Louwrentius
ZFS performance on HP Proliant Microserver Gen8 G1610T
I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your...
over a year ago
I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your own ZFS-based NAS. The benchmarks I've performed seem to confirm this.
The Microserver Gen8 has nice features such as:
iLO (KVM over IP with dedicated network interface)
support...
Home on Erik...
The Filter Bubble is Silly and you Can't Guess What Happened Next
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here...
over a year ago
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here was about the filter bubble which prompted me to formalize my own thoughts.
I firmly believe that it's the role of a system to respect the user's intent.
Birchtree
The “Bluesky feels like early Twitter!” vibe
Bluesky has the juice right now, and while it’s slowed down a bit this week, they were adding over 1...
a month ago
Bluesky has the juice right now, and while it’s slowed down a bit this week, they were adding over 1 million users a day for a bit last week. One sentiment I’m hearing a lot recently is that Bluely “feels like early Twitter,” which
Willem's Blog
No, I Won't Build That!
Discover how saying 'no' can lead to more innovative and meaningful work in this blog post: "No, I...
10 months ago
Discover how saying 'no' can lead to more innovative and meaningful work in this blog post: "No, I Won't Build That!"
lcamtuf’s thing
The secret lives of snowblowers
Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than...
4 months ago
Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than it seems.
Lars Lofgren
The Stupidity of Google’s Site Reputation Abuse Policy
Site reputation abuse is when a third-party abuses the reputation of a domain to rank a bunch of...
a month ago
Site reputation abuse is when a third-party abuses the reputation of a domain to rank a bunch of pages in Google. The SEO community refers to this type of thing as parasite SEO. Google has gone so far as to publish an official policy (documented here) on how this isn’t allowed:...
Louwrentius
Understanding the Ubuntu 20.04 LTS Server Autoinstaller
Introduction
Ubuntu Server version 18.04 LTS uses the debian-installer (d-i) for the installation...
over a year ago
Introduction
Ubuntu Server version 18.04 LTS uses the debian-installer (d-i) for the installation process. This includes support for 'preseeding' to create unattended (automated) installations of ubuntu.
the debian installer
With the introduction of Ubuntu Server 20.04 'Focal...
./techtipsy
btrbk is awesome
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use...
over a year ago
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use the btrfs file system for my operating system and my data.
Snapshots are one half of my “whoops, there goes all my work” strategy (backups
are the other half).
I’ve written about...
Notes on software...
Tail call elimination
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated...
over a year ago
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated in an interpreter, a compiler targeting
C++, and a compiler targeting LLVM IR.
Tail calls
A tail call is a function call made at the end of a block that
returns the value of the...
Vitalik Buterin's...
What else could memecoins be?
9 months ago
Good Enough
TIL: Blocking Password App Autocomplete on Form Fields
I wanted to disable password managers, particularly 1Password, from interacting with a username...
a year ago
I wanted to disable password managers, particularly 1Password, from interacting with a username field in Contact Me. It was pretty simple in the end:
<%= form.text_field :username, "data-lpignore": true, "data-1p-ignore": true %>
Reference: 1Password, Lastpass.
GitButler
Fixing up Git with Autosquash
How can you amend a series of commits automatically to keep a clean history? Let's take a look at...
9 months ago
How can you amend a series of commits automatically to keep a clean history? Let's take a look at git autosquash.
Arduino Blog
Controlling a drum machine with the Arduino Opta
Makers have long asked the question “why bother with an expensive PLC when I can just use an...
6 months ago
Makers have long asked the question “why bother with an expensive PLC when I can just use an Arduino?” The answer comes down to the priorities and needs of industrial clients. In a factory automation setting, the client will prioritize durability, reliability, and serviceability...
Jonas Hietala
Postmortem: Black and White
All this time working on my latest game I thought it sucked and I was trying hard to make it to not...
over a year ago
All this time working on my latest game I thought it sucked and I was trying hard to make it to not suck. My spirit wasn’t high, just check this post and this but now when it’s done it’s like night and day, or like black and white! I’m damn happy I got it done!! Aah I’ll try to...
Louwrentius
An affordable server platform based on server-grade hardware
Updated post (June 2014) found HERE
There are some reasons why you should consider buying true...
over a year ago
Updated post (June 2014) found HERE
There are some reasons why you should consider buying true server-grade harware when building a server, wether it's for home or business use.
This is why I want to introduce you to the Supermicro X9SCM-F motherboard.
This motherboard costs...
Jonas Hietala
Let's build a VORON: Bed & electronics
I’ve made a lot of progress on my VORON.
Electronics and other stuff are installed to the degree...
a year ago
I’ve made a lot of progress on my VORON.
Electronics and other stuff are installed to the degree that I’ve begun wiring, but I’m going to separate the wiring into it’s own post.
This will be a short post about bed preparation and installing electronics components.
Feedback from...
Notes on software...
First month on a database team
A little over a month ago, I joined EnterpriseDB on a
distributed Postgres product
(PGD). The...
9 months ago
A little over a month ago, I joined EnterpriseDB on a
distributed Postgres product
(PGD). The process of onboarding
myself has been pretty similar at each company in the last decade,
though I think I've gotten better at it. The process is of course
influenced by the team, and my...
Vitalik Buterin's...
Gitcoin Grants Round 7 Retrospective
over a year ago
Vitalik Buterin's...
How will Ethereum's multi-client philosophy interact with ZK-EVMs?
a year ago
Old Vintage...
Virtualizing the 6502 on a 6502 with 6o6 (and The Incredible KIMplement goes 1.0)
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've...
8 months ago
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've intermittently worked on for literally two decades. Now that I've finally shaken out more bugs, tuned it up and cleaned it off, it's time to let people play with the source...
./techtipsy
I have a 'Dall UD19PB ThundeRbglt Dock': my experience with the HP Elitebook 845 G9
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and...
over a year ago
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and also out of morbid curiosity.
It’s the HP Elitebook 845 G9, and it has pretty good specifications:
CPU: AMD Ryzen 7 6800U
RAM: 2x16GB DDR5
Storage: 512GB KIOXIA NVMe SSD...
Arduino Blog
Ready for SPS Italia 2024? Ready for accessible industrial automation!
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our...
7 months ago
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our open-source solutions are revolutionizing the industrial sector with high performance and accessibility. At Arduino’s booth #C020, hall 7, we’ll be presenting the latest additions to...
Vitalik Buterin's...
[Mirror] Central Planning as Overfitting
over a year ago
Home on Erik...
Books I consumed in 2017
Turns out having a toddler isn't super compatible with reading. I used to read ~100 books/year as a...
over a year ago
Turns out having a toddler isn't super compatible with reading. I used to read ~100 books/year as a teenager, but it has slowly deteriorated to maybe 20-30 books, at most. And I don't even finish all of them because life is too short!
Home on Erik...
Lessons from content marketing myself (aka blogging) for five years
I started writing this blog in late 2012, partly because I felt like it would help me improve my...
over a year ago
I started writing this blog in late 2012, partly because I felt like it would help me improve my English and my writing skills, partly because I kept having a lot of random ideas in my head and I wanted to write them down somewhere.
Simply Explained
Securely access home network with Cloudflare Tunnel and WARP
When Cloudflare announced that their Tunnel service would become free, I saw an opportunity to...
over a year ago
When Cloudflare announced that their Tunnel service would become free, I saw an opportunity to strengthen the security of my Home Assistant instance. Until now, I have been using Cloudflare's CDN to connect to my HA instance, but that required opening ports on my router and...
Notes on software...
Writing a SQL database from scratch in Go: 4. a database/sql driver
Previously in database basics:
1. SELECT, INSERT, CREATE and a REPL
2. binary expressions...
over a year ago
Previously in database basics:
1. SELECT, INSERT, CREATE and a REPL
2. binary expressions and WHERE filters
3. indexes
In this post, we'll extend gosql
to implement the database/sql driver interface. This will
allow us to interact with gosql the same way we would...
Notes on software...
Running SQL Server in a container on Github Actions
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.
Electronics etc…
Analyzing the Monoprice Blackbird HDCP 2.2 to 1.4 Down Converter
Introduction
Some Words about HDCP
Inside the Monoprice Blackbird 4K Pro
The Test
Digging Deeper:...
a year ago
Introduction
Some Words about HDCP
Inside the Monoprice Blackbird 4K Pro
The Test
Digging Deeper: UART Transactions
Decoding HDCP I2C Transactions
The Legality of It All
References
Footnotes
Introduction
I got my hands on a
Monoprice Blackbird 4K Pro HDCP 2.2 to 1.4...
Style over Substance
Buienalarm / Buienradar Apple Watch complication using Home Assistant
Living in the Netherlands, one of the things I really miss on my Apple Watch is a Buienradar...
over a year ago
Living in the Netherlands, one of the things I really miss on my Apple Watch is a Buienradar complication. Buienradar, Dutch for rain radar, is a popular site here that uses weather radar images to predict if it’s going to rain in the next few hours. For many people living here,...
Old Vintage...
Cracking DesignWare's The Grammar Examiner on the C64
It's been awhile since I've stripped the copy protection off a Commodore 64 software package. This...
a year ago
It's been awhile since I've stripped the copy protection off a Commodore 64 software package. This weekend I had a reason to.
The Grammar Examiner from 1984, something like a mashup between a board game and Strunk and White's Elements of Style, where you get to edit a fictional...
Old Vintage...
The Hall SC-VGA-2 video processor, the Atari ST and NeXTSTEP: more tales of the unscreenshotable
A periodic fascination on this blog is figuring out better ways to get better screenshots of our...
a month ago
A periodic fascination on this blog is figuring out better ways to get better screenshots of our classic systems, which often hail from the Wild Wild West/East in terms of video standards (read all entries in this series). Naturally the best way is a bitwise direct grab of the...
Home on Erik...
Spotify's Discovery page
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage...
over a year ago
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage of all users. Really happy since we have worked on it for the past six months. Here's a screen shot:
Jonas Hietala
Notifications with xmonad/irssi/urxvt
So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I...
over a year ago
So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I have not had notifications enabled, so I can see from the statusbar whenever someone messages me. As I’ve never been very active this has been fine, but now I figured it’s time to fix...
Louwrentius
My 71 TiB ZFS NAS after 10 years and zero drive failures
My 4U 71 TiB ZFS NAS built with twenty-four 4 TB drives is over 10 years old and still going...
3 months ago
My 4U 71 TiB ZFS NAS built with twenty-four 4 TB drives is over 10 years old and still going strong.
Although now on its second motherboard and power supply, the system has yet to experience a single drive failure (knock on wood).
Zero drive failures in ten years, how is that...
Ian's Blog
Mourning the Loss of Cohost
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting...
3 months ago
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting down, with the site going read-only on October 1st 2024. This news was deeply upsetting to receive, as Cohost filled a space left by other social media websites when they stopped...
Matt Blewitt
Riding the Risk Railway
When building and operating a user-facing system, especially one that is open to the public, it is...
over a year ago
When building and operating a user-facing system, especially one that is open to the public, it is important to consider the riskiness of a user, which can also be characterised as trustworthiness. These will typically be negatively correlated, with low trust indicating high risk...
Lighthouse Blog
Updates September 16: Explore all available articles of a feed
3 months ago
./techtipsy
The IPv6 situation on Docker is good now!
Good news, everyone! Doing IPv6 networking stuff on Docker is actually good now!
I’ve recently...
a week ago
Good news, everyone! Doing IPv6 networking stuff on Docker is actually good now!
I’ve recently started reworking my home server setup to be more IPv6 compatible, and as part of that I learned that
during
the summer of 2024 Docker shipped an update that eliminated a
lot of the...
Notes on software...
Why (and how) to read books
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I...
over a year ago
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I never forced myself to build the
habit. Then three years ago I spent time around my brother and a
coworker who were avid readers. This "peer pressure" helped me get
started.
Since...
Christian Selig
Curing Mac mini M4 fomo with 3D printing
Spoiler: 3D printed! The colored ports really sell the effect
If you’re anything like me, you’ve...
a month ago
Spoiler: 3D printed! The colored ports really sell the effect
If you’re anything like me, you’ve found the new, tinier Mac mini to be absolutely adorable. But you might also be like me that you either already have an awesome M1 Mac mini that you have no real reason to replace,...
Arduino Blog
Ride safer with these DIY bicycle lights
Many people around the world live in cities designed for cars, with bicycle use being a distant...
5 months ago
Many people around the world live in cities designed for cars, with bicycle use being a distant afterthought. That makes cycling dangerous and lights can do a lot to make riding safer. That’s why Giovanni Aggiustatutto designed this DIY system that includes headlights, a...
Home on Erik...
Installing TensorFlow on AWS
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some...
over a year ago
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some time getting it to run on EC2. The steps on how to reproduce it are pretty brutal and I wouldn't recommend going through it unless you want to waste five hours of your live.
Louwrentius
Linux Iptables Firewall Script released on Google code
I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall...
over a year ago
I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall within minutes. It is easy to use, yet very powerful. It uses Iptables and even improves upon some limitations of Iptables.
Every person who has to maintain some kind of...
Arduino Blog
How to customize your Arduino Cloud IoT dashboards on the go
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage...
2 months ago
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage their IoT projects with ease. From tracking sensor data to automating smart devices, the cloud enables seamless connectivity. Complementing this, the Arduino IoT Remote mobile app...
Bryan Braun - Blog
Links #11
Here are some more links to things that I keep thinking about. I shared a bit more detail on these...
a month ago
Here are some more links to things that I keep thinking about. I shared a bit more detail on these ones than I usually do—there were so many good quotes to include. Enjoy!
Selfishness & Therapy Culture
Earlier this year, there was a post in the New York Times called “Sometimes,...
./techtipsy
Testing GPU passthrough on AMD Ryzen 7 5700G APU
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are...
over a year ago
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are dealing with here since these topics
may be unfamiliar to you. VFIO is quite a niche topic and not everyone knows about it.
GPU passthrough: the process of allowing a VM...
On Life and Lisp
AAA gaming on Asahi Linux
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which...
2 months ago
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which integrates our Vulkan 1.3 drivers with x86
emulation and Windows compatibility. Plus a bonus: conformant OpenCL
3.0.
Asahi Linux now ships the only conformant OpenGL®,
OpenCL™,
and...
./techtipsy
Whacky setups: seedbox on a wall
The Orange Pi Zero is one hell of an SBC. It has served as
a Wi-Fi access point for months without...
over a year ago
The Orange Pi Zero is one hell of an SBC. It has served as
a Wi-Fi access point for months without issues
and as a testbed for playing around with MySQL.
I wanted it to be a useful device again, but had trouble finding an use case for it due to its hardware limitations.
After...
Computer Ads from...
Gould Electronic's PowerNode 6000
The Firebreathers from Gould blast the competition into oblivion.
5 months ago
The Firebreathers from Gould blast the competition into oblivion.
Vitalik Buterin's...
Hard Forks, Soft Forks, Defaults and Coercion
over a year ago
Notes on software...
Analyzing large JSON files via partial JSON parsing
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.
Home on Erik...
Annoying blog post
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which...
over a year ago
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which is an open source C++/Python library for Approximate Nearest Neighbor search.
I set up Travis-CI integration and spent some time on one of the issues that multiple people had...
Willem's Blog
Syncing files seamlessly between smartphone and tablet
In order to optimise my workflow, I was looking for a way to seamlessly access the same files on...
over a year ago
In order to optimise my workflow, I was looking for a way to seamlessly access the same files on both my computer and smartphone. Read along to find out how I did it.
./techtipsy
Lenovo ThinkPad P14s gen 4 (AMD): it doesn't suck under Linux
I’ve had the opportunity to try out another new laptop at work. I’ve used a brand new laptop...
8 months ago
I’ve had the opportunity to try out another new laptop at work. I’ve used a brand new laptop recently, and it was horrible.
But this time I’m pleasantly surprised.
The Lenovo ThinkPad P14s gen 4 has great specs:
CPU: AMD Ryzen 7 PRO 7840U (8 cores, 16 threads, up to 5.1 GHz)
GPU:...
Posts on Made of...
Some musings on ORMs
I’m pretty sure every developer who has ever worked with a modern database-backed application,...
over a year ago
I’m pretty sure every developer who has ever worked with a modern database-backed application, particularly a web-app, has a love/hate relationship with their ORM, or object-relational mapper.
On the one hand, ORMs are vastly more pleasant to work with than code that constructs...
Computer Ads from...
NCR PC4i
Growing with your needs
a week ago
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...
a month 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...
Jonas Hietala
Netrunner Spring Tournament
There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very...
over a year ago
There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very casual setting but there were also some guys who came from… Västerås I think, but I’m not sure. We managed to scrape together 9 people at least, and I didn’t notice anyone bringing...
Jonas Hietala
CS:GO AWP Nerf
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I...
over a year ago
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I ever make a game and I want someone to balance it and I had the money, I would hire Thorin.
Ken Shirriff's blog
Reverse-engineering a three-axis attitude indicator from the F-4 fighter plane
We recently received an attitude indicator for the F-4 fighter plane, an instrument that
uses a...
3 months ago
We recently received an attitude indicator for the F-4 fighter plane, an instrument that
uses a rotating ball to show the aircraft's orientation and direction.
In a normal aircraft, the artificial horizon shows the orientation in two axes (pitch and roll), but the F-4...
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...
Applied Cartography
Things take time
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi...
8 months ago
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi Nintendo & Co., LTD — was established nearly fifty years later, in 1933. They spent forty years selling playing cards, then another decade operating merely as a distributor of...
Notes on software...
General book recommendations
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.
computers are bad
2023-10-22 cooler screens
Audible even over the squeal of an HVAC blower with a suffering belt, the whine
of small, high...
a year ago
Audible even over the squeal of an HVAC blower with a suffering belt, the whine
of small, high velocity fans pervades the grocery side of this Walgreens. Were
they always this loud? I'm not sure; some of the fans sound distinctly
unhealthy. Still, it's a familiar kind of noise to...
Lighthouse Blog
Updates November 24: Content parsing improvements
a year ago
Odds and Ends of...
Odds and Ends #46: The transformation of London's skyline, a big week for nuclear, and installing...
Plus how to avoid the road pricing landmine
4 weeks ago
Plus how to avoid the road pricing landmine
Birchtree
2 weeks to go and I don't think I'll have to eat that AirPod
Last month I made the courageous promise that I would eat an AirPod if a 9to5Mac writer's prediction...
2 weeks ago
Last month I made the courageous promise that I would eat an AirPod if a 9to5Mac writer's prediction that "[b]efore the end of the year, I have no doubt Apple’s AI features—especially what’s coming in 18.2—will become
Notes on software...
A write-ahead log is not a universal part of durability
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its...
6 months ago
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its long-term data structure durably
to disk before returning to a client. Granted, this is a bad idea! And
granted, a WAL is critical for durability by design in most
databases. But I...
seangoedecke.com RSS...
Avoiding worry driven development
Sofware dysfunction is more often motivated by anxiety, fear, worry and embarassment than it is by a...
over a year ago
Sofware dysfunction is more often motivated by anxiety, fear, worry and embarassment than it is by a lack of technical skill. Engineers…
Buck on Software
Category velocity
People make decisions, not businesses.
over a year ago
People make decisions, not businesses.
Notes on software...
Effective unemployment and social media
Being unemployed can be incredibly depressing. So much
rejection. Everything seems to be out of your...
a month ago
Being unemployed can be incredibly depressing. So much
rejection. Everything seems to be out of your control. Everything
except for one thing: what you produce.
You might know that repeatedly posting on social media that you are
looking for work is ineffective. That it looks (or...
Jordan’s Substack
Coming soon
This is Jordan’s Substack.
a month ago
This is Jordan’s Substack.
Jonas Hietala
Writing lessons learned after writing a book
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for...
a year ago
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for writing a book was to improve my writing ability.
Maybe I could’ve practiced on the blog instead, but putting things on paper gave it some added weight I don’t think I would’ve gotten...
./techtipsy
Disabling the crappy Broadcom Bluetooth adapter in your ThinkPad T430 running Linux
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a...
over a year ago
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a better adapter like the
Intel Dual Band Wireless-AC 7260,
and found that Bluetooth is not working as intended on your ThinkPad T430
running Linux?
Here’s a guide on what you can...
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
10 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Willem's Blog
Escaping the flat tires
Finding the answer to the question how resilient a puncture-proof tire really is took me quite some...
over a year ago
Finding the answer to the question how resilient a puncture-proof tire really is took me quite some time, but alas - here it is!
Matt Blewitt
What Is a Senior Engineer, Anyway?
I’ve been having a bunch of conversations with my team about our career ladder, and what it means to...
a month ago
I’ve been having a bunch of conversations with my team about our career ladder, and what it means to be “senior” in a software engineering context. It’s a little different in every company, but here is my view.
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...
5 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...
Notes on software...
Confusion is a muse
Some of the most interesting technical blog posts I read come from,
and a common reason for posts I...
6 months ago
Some of the most interesting technical blog posts I read come from,
and a common reason for posts I write is, confusion. You're at work
and you start asking questions that are difficult to answer. You spend
a few hours or a day trying to get to the bottom of things.
If you ask a...
Notes on software...
An effective product manager
There are three specific activities I have loved in some product
managers I've worked with (and...
a year ago
There are three specific activities I have loved in some product
managers I've worked with (and missed in others).
tldr;
Talk with customers and prospects
Develop and share a vision
Evangelize
Talk with customers and prospects
As a product manager, your superpower over...
Louwrentius
Monitoring HP MSA P2000 G3 I/O latency with Nagios
At work we have a couple of HP MSA P2000 G3 SANs. These are entry-level SANs that still seem to have...
over a year ago
At work we have a couple of HP MSA P2000 G3 SANs. These are entry-level SANs that still seem to have almost all features you might want from a SAN, except for official SSD-support.
It seems that the new MSA 2040 adds support for SSDs and also provides 4 GB cache per controller...
Louwrentius
Scrub your NAS hard drives regularly if you care about your data
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known...
over a year ago
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known vendors1, or it's a custom build solution (DIY2) based on hardware you bought and assembled yourself.
Buying or building a NAS is one thing, but operating it in a way that assures...
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...
Arduino Blog
It’s silver, it’s green, it’s the Batteryrunner! An Arduino-powered, fully custom electric car
Inventor Charly Bosch and his daughter Leonie have crafted something truly remarkable: a fully...
a month ago
Inventor Charly Bosch and his daughter Leonie have crafted something truly remarkable: a fully electric, Arduino-powered car that’s as innovative as it is sustainable. Called the Batteryrunner, this vehicle is designed with a focus on environmental impact, simplicity, and custom...
Jonas Hietala
Undo git reset --hard
I purposefully and more or less idiotically executed git reset --hard <hash> in hopes of going back...
over a year ago
I purposefully and more or less idiotically executed git reset --hard <hash> in hopes of going back a bit. What I didn’t realize then is that you throw away all the commits between now until <hash>. Not quite what was planned.
After a bit of panic I found the answer:
Find your...
Buck on Software
Explaining the growth software sell-off
The terminal value double whammy of rising interest rates
over a year ago
The terminal value double whammy of rising interest rates
Louwrentius
The downside of 120 Mbit broadband internet
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of...
over a year ago
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of providging 120 Mbit downstream and 10 Mbit upstream, for an affordable price.
In a way this is mind boggling. Most people have 100 Mbit home networks that are not capable of handling...
Notes on software...
Writing a simple JSON library from scratch: a tour through modern C++
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is...
over a year ago
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is cheap. std::shared_ptr
means I don't have to manage any memory; no
more new/delete! (But try as I might to
understand std::unique_ptr, I'm just not there yet.)
The syntax has also...
Odds and Ends of...
How I learned to stop worrying and love the military industrial complex
Whether Trump wins or loses today, Europe should tool up and prepare to fight.
a month ago
Whether Trump wins or loses today, Europe should tool up and prepare to fight.
Home on Erik...
I'm looking for data engineers
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers...
over a year ago
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers at Better. You would be the first one to join and would work a lot directly with me.
Some fun things you could work on (these are all projects I'm working on right now):
Jonas Hietala
Building my ultimate keyboard
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate...
a month ago
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate keyboard”?
There are many keyboards in this world; here are some that might fit the “ultimate” moniker:
Das Keyboard 4 Ultimate mechanical keyboard
DataHand
Ergodox EZ
Glove80
Happy...
Home on Erik...
I already found the best gifs
Just search for “hackers gif“.
There you go. Fun for your work emails for the next 500 years. From...
over a year ago
Just search for “hackers gif“.
There you go. Fun for your work emails for the next 500 years. From the awesome movie Hackers. That movie together with The Warriors convinced me that I wanted to live in NYC when I was like… 14 years old.
Matt Mullenweg
On with Theo / T3.gg
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled...
3 months ago
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled This might be the end of WordPress. It was very harsh. In that video you’ll hear him say about me, “he’s a chronic hater” (7:55), “seems like he’s been a pretty petty bastard for a...
Simply Explained
Monitoring my 3D printer with a Pi Zero, Home Assistant and TinyCore Linux
Many devices in my home have become "smart" over the last couple of months, with one big exception:...
over a year ago
Many devices in my home have become "smart" over the last couple of months, with one big exception: my trusty 3D printer. It's a super reliable Prusa i3 MK3, but it lacks an internet connection.So I decided to use a Pi Zero to keep track of my 3D prints and send the progress to...
seangoedecke.com RSS...
MCTS and LLMs: what's the big deal?
Everyone on the internet is recently very excited about large language models and Monte Carlo tree...
6 months ago
Everyone on the internet is recently very excited about large language models and Monte Carlo tree search. Going back months, the “Q*” leak…
Arduino Blog
An engineer’s journey to bring the ultimate TMJ pain relief tool to market
To the average person, invention and new product development seem like pretty straightforward...
3 months ago
To the average person, invention and new product development seem like pretty straightforward processes; you come up with a killer idea, do the engineering work to cobble together a working prototype, have a truckload of units manufactured, and then sell those to turn a profit....
Good Enough
TIL: Victory Symbol
We noticed that the victory symbol at the bottom of our homepage looked different in Chrome than...
a year ago
We noticed that the victory symbol at the bottom of our homepage looked different in Chrome than Safari––it was playing smart and rendered the unicode character as an emoji. Lettini found a fix though! Append this string of code to the symbol: ︎.
So ✌︎ renders...
Vitalik Buterin's...
Exit games for EVM validiums: the return of Plasma
a year ago
Engineers Need Art
Op-Amp Helper PCB
A PCB for breadboards to make working with op-amps easier.
a year ago
A PCB for breadboards to make working with op-amps easier.
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...
Lighthouse Blog
Lighthouse now integrates with mobile reader apps
5 months ago
Ken Shirriff's blog
Wealth distribution in the United States
Forbes recently published the Forbes 400 List for 2024, listing the
400 richest people in the United...
2 months ago
Forbes recently published the Forbes 400 List for 2024, listing the
400 richest people in the United States.
This inspired me to
make a histogram to show the distribution of wealth in the United States.
It turns out that if you put Elon Musk on the graph,
almost the entire US...
Home on Erik...
MLConf 2014
Just spent a day at MLConf where I was talking about how we do music recommendations. There was a...
over a year ago
Just spent a day at MLConf where I was talking about how we do music recommendations. There was a whole range of great speakers (actually almost 2/3 women which was pretty cool in itself).
Here are my slides:
Matt Mullenweg
Michael Palmisano on Collier
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on...
2 months ago
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on YouTube, and one of my favorite genres of videos is genius musicians breaking down the incredible musical stuff Jacob is doing. (He even has his own instrument now.) This reaction...
Posts on Made of...
The architecture of declarative configuration management
With the ongoing move towards “infrastructure-as-code” and similar notions, there’s been an ongoing...
over a year ago
With the ongoing move towards “infrastructure-as-code” and similar notions, there’s been an ongoing increase in the number and popularity of declarative configuration management tools. This post attempts to lay out my mental model of the conceptual architecture and internal...
On Life and Lisp
The first conformant M1 GPU driver
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the...
a year ago
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the drivers are compatible with any OpenGL ES
3.1 application. Interested? Just install Linux!
For existing Asahi Linux users,
upgrade your system with dnf
upgrade (Fedora) or pacman
-Syu...
Jonas Hietala
Making a Game Again?
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my...
over a year ago
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my glasses-missing headaches and I’m going to Ikea and some other shops for, you guessed it, shopping! Sure it’s fun and sure I need to do these things but the only thing on my mind now is...
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...
Jonas Hietala
Ores
Now we can build rooms, we can place objects and the worker will do things for us. Now I’ve added...
over a year ago
Now we can build rooms, we can place objects and the worker will do things for us. Now I’ve added some ores which makes the game look a bit less boring. I realize I’ve spent all my time on these little things and I still don’t have a game! But it doesn’t matter, maybe I can...
Construction Physics
How We Got the Lithium-ion Battery
It took decades of research, performed around the world, before a practical lithium-ion battery was...
a month ago
It took decades of research, performed around the world, before a practical lithium-ion battery was possible.
lcamtuf’s thing
Weekend projects: getting silly with C
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
6 months ago
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
Ian's Blog
Pragmatically Generating a Self-Signed Certificate and Private Key using OpenSSL
Recently I found myself needing to generate a HTTPS Server Certificate and Private Key for an iOS...
over a year ago
Recently I found myself needing to generate a HTTPS Server Certificate and Private Key for an iOS app using OpenSSL, what surprised me was the total lack of documentation for OpenSSL.
While there is plenty of function documentation, what OpenSSL really lacks is examples of how it...
Computer Ads from...
Ergotron's MacTilt
MacTilt is the Solution
a month ago
Jonas Hietala
Breaking the rule of three
It’s pretty darn stressful making a game in a week, especially when you have this big great vision...
over a year ago
It’s pretty darn stressful making a game in a week, especially when you have this big great vision on how your game should be (which is always grand). For me making Balls, Black and White and Jonas IceCream Stand where truly stressful, MenuCity and Bugger not so much but...
latest projects -...
Motorised Camera Slider
[Hardware] Simple smooth motor mod
6 months ago
[Hardware] Simple smooth motor mod
Arduino Blog
Galco goes Platinum! Welcome our newest SIPP
Founded in 1975 and headquartered in Madison Heights, Michigan, Galco is a leading e-commerce...
8 months ago
Founded in 1975 and headquartered in Madison Heights, Michigan, Galco is a leading e-commerce distributor that specializes in providing a wide range of industrial and commercial electrical and electronic products, focusing on maintenance, repair, and operations (MRO). Known for...
Jonas Hietala
February gets Themed: Rejection
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t...
over a year ago
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t follow suite! With valentine coming up I might just have found a pretty nice idea, just now, writing this…
Booyah!!
Notes on software...
A minimal REST API in Java
There's a style of Java that is a joy to write. This post will cover
how to set up a basic...
over a year ago
There's a style of Java that is a joy to write. This post will cover
how to set up a basic PostgreSQL-integrated REST API using
Jersey and
JOOQ in a style not dissimilar to Flask and
SQLAlchemy in Python.
In particular, we'll try to avoid as much runtime
reflection/class-loading...
Posts on Made of...
Running Tensorflow on AWS GPUs
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that...
over a year ago
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that project I wanted to be able to train models using GPUs on EC2. This post contains some notes on what it took to get that working. As many people have commented, the environment setup...
Applied Cartography
Content debt
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis,...
5 months ago
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis, handbooks, etc.) to the public as a bit of a marketing push. This is essentially a form of debt, to the extent that you’re taking a lump-sum payment now in exchange for the implicit cost...
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...
Good Enough
TIL: Easily Support Gravatars in Rails
We’re building some software where we’d like to display avatars for email contacts
even if they...
10 months ago
We’re building some software where we’d like to display avatars for email contacts
even if they aren’t users of our software.
While Gravatar is a relic of Web 2.0,
we’ve found that there are still a significant number of people who have their
email addresses in that...
Louwrentius
Difference of behavior in SATA Solid State Drives
Introduction
Update: I've noticed some strange behavior of SSDs when benchmarking them with FIO....
over a year ago
Introduction
Update: I've noticed some strange behavior of SSDs when benchmarking them with FIO. After further investigation and additional testing, I've found the reason for the strange patterns in the graphs.
The 'strange' test results are due to the fact that they were...
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