computers are bad
2024-12-11 travelers information stations
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For...
a month ago
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For historic reasons, WBCT of Grand Rapids, Michigan
broadcasts FM at 320¸000 watts. Many AM stations are licensed to operate at
50,000 watts, but this modern license limit represented a...
Louwrentius
Creating a basic ZFS file system on Linux
Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux.
I'm...
over a year ago
Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux.
I'm documenting the scenario where I just want to create a file system that can tollerate at least a single drive failure and can be shared over NFS.
Identify the drives you want to use for the...
Electronics etc…
Teardown of the TM4313 GPS Disciplined Oscillator
Introduction
What is a GPSDO?
The TM4313 GPSDO
Power Consumption
Inside the TM4313
The TM4313...
a year ago
Introduction
What is a GPSDO?
The TM4313 GPSDO
Power Consumption
Inside the TM4313
The TM4313 Schematic
Frequency or Phase Lock Loop?
OCXO Temperature
The Curious Case of the MAX6192 Voltage Reference
The Discrete Tuning DAC
GPS Module
Microcontroller instead of NMEA Serial...
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.
Louwrentius
Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin
If you want to compile PAR2 with multicore support on Linux, it may not work right away from source....
over a year ago
If you want to compile PAR2 with multicore support on Linux, it may not work right away from source. I used this version of PAR2 with multicore support.
Update 2015: the original link is dead, I foud a copy of the source and put it on my own site here for you to download.
First,...
Odds and Ends of...
Odds and Ends #47: I think this YouTube video just changed my life
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
a month ago
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
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...
Louwrentius
Why filtering DHCP traffic is not always possible with iptables
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all...
over a year ago
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all input, forward and output traffic was dropped, DHCP
traffic to and from my DHCP server was not blocked even if there were no
rules permitting this traffic.
I even flushed all rules,...
Jonas Hietala
An update on my book 'Why Cryptocurrencies?'
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to...
over a year ago
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to finish the book.
Sorry that’s a bit of a lie, I’ve had a nice long vacation where I didn’t work on the book and I’m also on part-time parental leave. And believe me there’s not a...
Simply Explained
Building a killer NAS with an old Rackable Server
Like many others, I'm generating a lot of digital data. Constantly taking photos, writing scripts,...
over a year ago
Like many others, I'm generating a lot of digital data. Constantly taking photos, writing scripts, taking notes, coding projects, and making videos. I'm storing all these files on Google Drive, which has been very reliable but also a bit risky. What if Google closes my account?...
Neil Madden
XSS doesn’t have to be game over
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game...
over a year ago
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game over” event for defence: there is no effective way to recover if an attacker can inject code into your site. Brian Campbell refers to this as “XSS Nihilism”, which is a great...
Willem's Blog
Flying in a C47-A (DC-3) classic plane
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received,...
over a year ago
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received, experiencing aviation history unlike anything else!
Jonas Hietala
Let's build a VORON: Printing & Tuning
It’s up and running, and now it’s finally printing time!
Less exciting—but necessary—tuning the...
a year ago
It’s up and running, and now it’s finally printing time!
Less exciting—but necessary—tuning the printer to make the prints better.
Filament shipment
Even though I’ve been building the printer for more than a month, I wasn’t ready for it being time for printing so soon.
I don’t...
Computer Ads from...
ViaGrafix Computer Training Videos
Learn...by Simply Watching TV
2 months ago
Learn...by Simply Watching TV
Old Vintage...
The unreleased Commodore HHC-4's secret identity
Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one...
2 months ago
Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one and only handheld computer, the Commodore HHC-4. It was never released and never seen again, at least not in that form. But it turns out that not only did the HHC-4 actually exist,...
Jonas Hietala
Dijkstra's Algorithm
For rust, I’m updating the documentation for the standard library and specifically with the...
over a year ago
For rust, I’m updating the documentation for the standard library and specifically with the collections. For the priority queue I had the idea to use Dijkstra’s algorithm as a fun example. That idea was well received and that example is now live.
At first I wanted to use A* to...
Louwrentius
Benchmarking cheap SSDs for fun, no profit (be warned)
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now...
a year ago
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now possible to buy a 1TB solid-state drive for less than €60. However, at such low price points, there is a catch.
Although cheap SSDs do perform fine regarding reads, sustained write...
Arduino Blog
This robotic kalimba plays melodies with an Arduino Nano
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each...
4 months ago
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each tuned for a specific note, and upon plucking or striking one, a pleasant xylophone-like sound can be heard. Taking inspiration from his mini kalimba, Axel from the YouTube channel...
Arduino Blog
This ‘smocking display’ adds data physicalization to clothing
Elastic use in the textile industry is relatively recent. So, what did garment makers do before...
6 months ago
Elastic use in the textile industry is relatively recent. So, what did garment makers do before elastic came along? They relied on smocking, which is a technique for bunching up fabric so that it can stretch to better fit the form of a body. Now a team of computer science...
Home on Erik...
Bagging as a regularizer
One thing I encountered today was a trick using bagging as a way to go beyond a point estimate and...
over a year ago
One thing I encountered today was a trick using bagging as a way to go beyond a point estimate and get an approximation for the full distribution. This can then be used to penalize predictions with larger uncertainty, which helps reducing false positives.
Notes on software...
Make your own way
Over the years, I have repeatedly felt like I missed the timing for a
meetup or an IRC group or...
a year ago
Over the years, I have repeatedly felt like I missed the timing for a
meetup or an IRC group or social media in general. I'd go to a meetup
every so often but I'd never make a meaningful connection with people,
whereas everyone else knew each other. I'd join an IRC group and...
computers are bad
2024-03-17 wilhelm haller and photocopier accounting
In the 1450s, German inventor Johannes Gutenburg designed the movable-type
printing press, the first...
10 months ago
In the 1450s, German inventor Johannes Gutenburg designed the movable-type
printing press, the first practical method of mass-duplicating text. After
various other projects, he applied his press to the production of the Bible,
yielding over one hundred copies of a text that...
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',...
Matt Blewitt
Everything I Know About Operations, I Learned From NHS 111
Ever heard someone say “It’s only software/money/<trivial thing>, not life or death”, in the context...
over a year ago
Ever heard someone say “It’s only software/money/<trivial thing>, not life or death”, in the context of incidents at your company? Although mostly true, I want to talk about a time in my career when sometimes, just sometimes, it was the latter, and how it shaped my approach to...
./techtipsy
Surviving the front page of HackerNews on a 50 Mbps uplink
Around a month ago I shared my blog post
on HackerNews. I guess I lucked out with the choice of the...
over a year ago
Around a month ago I shared my blog post
on HackerNews. I guess I lucked out with the choice of the topic, because it
brought out a lot of enthusiasts who shared their own experiences with older
machinery that still works in 2022. I really appreciate the feedback and...
computers are bad
2023-03-13 the door close button
This will probably be a short one, and I know I haven't written for a while,
but it has always been...
a year ago
This will probably be a short one, and I know I haven't written for a while,
but it has always been the case that you get what you pay for and Computers
Are Bad is nothing if not affordable. Still, this is a topic on which I am
moderately passionate and so I can probably stretch...
./techtipsy
Tech tip: eliminate HDD humming noise
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are...
over a year ago
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are probably familiar
with the acoustic characteristics of the drives. The drives have a loud hum caused
by WD running the drives at 7200rpm while claiming the drives to be...
computers are bad
2024-05-25 grc spinrite
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean,...
8 months ago
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean, like, back in high school. These days I almost never do,
or on the occasion that I have storage trouble, it's a drive that has
completely stopped responding at all and there's...
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...
Applied Cartography
Hidden settings are for cowards
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be...
a month ago
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be explicitly temporal (temporarily split-testing traffic; rolling out a new feature or code path; exposing a specific path for a cohort of users during a closed beta) and gates,...
Posts on Made of...
Reader/reader blocking in reader/writer locks
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition...
over a year ago
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition queue, all future accesses block behind any in-flight reads. Thus, if any readers hold the lock for extended periods of time, this can lead to extreme pauses and loss of throughput...
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...
4 weeks 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...
Practical? Common Lisp on the JVM: A quick intro to ABCL for modern web apps
In a ridiculous attempt to prove an internet
wrong about the
practicality of Lisp (Common Lisp...
over a year ago
In a ridiculous attempt to prove an internet
wrong about the
practicality of Lisp (Common Lisp specifically), I tried to get a
simple (but realistic) web app running. After four days and a patch
to ABCL I got something
working.
The code I had in mind would look something like...
Simply Explained
How I Use Alfred to Search My Obsidian Notes Faster (with Spotlight!)
In this post, I’ll show you how I integrated Obsidian into Alfred so I can search my vault from...
a year ago
In this post, I’ll show you how I integrated Obsidian into Alfred so I can search my vault from anywhere on my Mac. I just open Alfred, type “note” followed by my query, and see my search results. Hit enter and the correct note opens in Obsidian. Easy and quick!
Jonas Hietala
2023 in review
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not...
a year ago
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not anything advanced, I really like looking back at the year to see what has happened.
Maybe it’s a very light version of a reverse bucket list, and I can see that it provides some...
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...
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...
11 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...
Jonas Hietala
2014 Read Books
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin...
over a year ago
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin Moran
Fun!
The Kill Room - Jeffery Deaver
A Song of Ice and Fire: Game of Thrones - George R.R. Martin
Reread.
A Song of Ice and Fire: A Clash of Kings - George R.R. Martin
Reread.
A...
./techtipsy
My very first career day
This post is a short overview of my experience at
a career day in Valga, Estonia, hosted with the...
11 months ago
This post is a short overview of my experience at
a career day in Valga, Estonia, hosted with the help of GreenDice.
I’ve never spoken at a career day before nor attended one as a student, which is why I instantly agreed to going to one
when GreenDice reached out to me.
Why? I...
Vitalik Buterin's...
The near and mid-term future of improving the Ethereum network's permissionlessness and...
8 months ago
Arduino Blog
This fake CRT TV works using lasers and UV magic
Until the 21st century, cathode-ray tube (CRT) TVs were pretty much the only option. As such, media...
a month ago
Until the 21st century, cathode-ray tube (CRT) TVs were pretty much the only option. As such, media was made to suit them. Retro video game consoles in particular look best on CRT TVs. But those old TVs are getting hard to find and desirable models are now quite expensive. So,...
Matt Blewitt
Long Distance Relationships
I’ve been managing a fully remote, fully distributed team, covering timezones from UTC-8 through...
3 months ago
I’ve been managing a fully remote, fully distributed team, covering timezones from UTC-8 through UTC+10, for the last couple of years. Through that time, I’ve learned a lot on organising work, interpersonal relationships, and ultimately how to overcome a lack of promximity to my...
Home on Erik...
Recurrent Neural Networks for Collaborative Filtering
I’ve been spending quite some time lately playing around with RNN’s for collaborative filtering....
over a year ago
I’ve been spending quite some time lately playing around with RNN’s for collaborative filtering. RNN’s are models that predict a sequence of something. The beauty is that this something can be anything really – as long as you can design an output gate with a proper loss function,...
lcamtuf’s thing
Weekend projects: Sketchy Sketch
Making a nicer version of a forgotten, electronic Etch-A-Sketch toy.
2 weeks ago
Making a nicer version of a forgotten, electronic Etch-A-Sketch toy.
Louwrentius
Building a RAID 6 array of mixed drives
To be honest, 4 TB of storage isn't really necessary for home usage.
However, I like to collect...
over a year ago
To be honest, 4 TB of storage isn't really necessary for home usage.
However, I like to collect movies in full DVD or HD quality and so I need some
storage.
I decided to build myself a NAS box based on Debian Etch. Samba is used to
allow clients to access the data. The machine...
./techtipsy
The best laptop is the one somebody else had
In 2011, I was finishing 9th grade. As a gift, I got to choose a laptop in the
400 EUR range. I...
2 months ago
In 2011, I was finishing 9th grade. As a gift, I got to choose a laptop in the
400 EUR range. I ended up picking
an ASUS Eee PC 1201PN. It was new and the
first computer in my life that was 100% mine, but awfully slow for a lot of tasks.
It was so slow that I ended up giving...
Computer Ads from...
Vote for the Topic of the March 2024 Plus Post
If you are a paid subscriber, voting is open for one week
10 months ago
If you are a paid subscriber, voting is open for one week
Computer Ads from...
Bible Research Systems' THE WORD Processor
For Those Who Seek.
6 months ago
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 3: The Scourge
3 months ago
Applied Cartography
buttondown.com/alternatives
Some kind words from Chris Krycho on Buttondown's Alternatives page:
This is how I want all my tools...
a month ago
Some kind words from Chris Krycho on Buttondown's Alternatives page:
This is how I want all my tools to be. There is a ton of room in these markets for healthy and friendly competition — and no need at all for winner-take-all or monopolist attitudes.
First off — credit where it's...
Home on Erik...
The half-life of code & the ship of Theseus
As a project evolves, does the new code just add on top of the old code? Or does it replace the old...
over a year ago
As a project evolves, does the new code just add on top of the old code? Or does it replace the old code slowly over time? In order to understand this, I built a little thing to analyze Git projects, with help from the formidable GitPython project.
Louwrentius
Neato XV-15 / XV-11 Robotic Vacuum cleaner review
Update 18 February 2012
There is one problem. When the robot is not connected to the charger, the...
over a year ago
Update 18 February 2012
There is one problem. When the robot is not connected to the charger, the batteries are depleted very fast. Even if the batteries are not entirely depleted and the robot can still display the menu, the clock loses it's time. Every time the robot gets a too...
Good Enough
The Space Between Us
Good Enough is a fully-remote team, and I think it's safe to say that we'll never have a physical...
a year ago
Good Enough is a fully-remote team, and I think it's safe to say that we'll never have a physical office. I've been working remotely for more than ten years, and overall I really like it. I love the flexibility it affords, being more present with our families, and that my...
On Life and Lisp
Vulkan 1.4 sur Asahi Linux
English version follows.
Aujourd’hui, Khronos Group a
sorti la spécification 1.4 de l’API graphique...
a month ago
English version follows.
Aujourd’hui, Khronos Group a
sorti la spécification 1.4 de l’API graphique standard Vulkan. Le projet
Asahi Linux est fier d’annoncer le
premier pilote Vulkan 1.4 pour le matériel d’Apple. En effet, notre
pilote graphique Honeykrisp
est reconnu
par...
Christian Selig
Waterfield's weirdly compact Apple Vision Pro Case
Disclosure: Waterfield sent this in exchange for a review. Yeah, that probably colors something on a...
9 months ago
Disclosure: Waterfield sent this in exchange for a review. Yeah, that probably colors something on a deep-down, subconscious level, but I won’t say anything that I don’t truly believe.
Unlike a phone or laptop, the Vision Pro is one of those products that is particularly tricky...
Construction Physics
Why Skyscrapers Became Glass Boxes
Everything put into the building that is unnecessary, every cubic foot that is used for purely...
a week ago
Everything put into the building that is unnecessary, every cubic foot that is used for purely ornamental purposes beyond that needed to express its use and to make it harmonize with others of its class, is a waste — is, to put it in plain English, perverting someone’s money —...
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...
8 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...
Arduino Blog
Arduino and Truesense partner to bring UWB technology to millions
We are excited to announce our latest partnership with Truesense, a leader in ultra-wideband (UWB)...
2 months ago
We are excited to announce our latest partnership with Truesense, a leader in ultra-wideband (UWB) technology, known for its innovative software and hardware solutions. This collaboration enhances our ecosystem of hardware products, software solutions, and cloud services,...
Abort Retry Fail
The History of Windows 98
Echoes of an Explosion
a year ago
Jonas Hietala
A small LED Cube
As a follow up of my hobby project goals this autumn I have now completed the smallest goal there. I...
over a year ago
As a follow up of my hobby project goals this autumn I have now completed the smallest goal there. I got started a little with soldering by constructing a small 3x3x3 LED cube.
Although extremely hard to see in this picture it actually worked without a hitch! It’s not the...
Odds and Ends of...
New event! How AI can (maybe) fix the government!
Book your tickets now!
a week ago
Vitalik Buterin's...
Exit games for EVM validiums: the return of Plasma
a year ago
watchTowr Labs
Where There’s Smoke, There’s Fire - Mitel MiCollab CVE-2024-35286, CVE-2024-41713 And An 0day
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't...
a month ago
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't overstate the consequences of an attacker crossing the boundary from the 'computer system' to the 'telephone system'. We've seen attackers realise this in 2024,
Jonas Hietala
Dbot
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl...
over a year ago
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl Dbot
Commands
.name - Echo the bots name
.hello - Output “hello world!”
.src - Dump the source code
Code
use IO::Socket;$s=IO::Socket::INET->new("158.38.8.251:6667");sub o{print$s...
watchTowr Labs
“To live is to fight, to fight is to live! - IBM ODM Remote Code Execution
In previous blogs, we’ve discussed some of the big players in the enterprise software space, but...
11 months ago
In previous blogs, we’ve discussed some of the big players in the enterprise software space, but there is one that we have not mentioned before, that is - quite frankly - the heavy-weight champion of the world in terms of applications for large enterprises. With over a hundred
Louwrentius
'Secure programming: how to implement user account management'
Most web applications work like this:
The application uses a single database account to perform all...
over a year ago
Most web applications work like this:
The application uses a single database account to perform all actions. Users
are just some records in a table. Account privileges and roles are part of
this table, or separate tables.
This implies that all security must be designed and build...
Vitalik Buterin's...
The Limits to Blockchain Scalability
over a year ago
Posts on Made of...
Some notes on CVE-2010-3081 exploitability
Most of you reading this blog probably remember CVE-2010-3081. The bug got an awful lot of publicity...
over a year ago
Most of you reading this blog probably remember CVE-2010-3081. The bug got an awful lot of publicity when it was discovered an announced, due to allowing local privilege escalation against virtually all 64-bit Linux kernels in common use at the time.
While investigating...
Ken Shirriff's blog
Reverse engineering standard cell logic in the Intel 386 processor
The 386 processor (1985) was Intel's most complex processor at the time, with 285,000...
11 months ago
The 386 processor (1985) was Intel's most complex processor at the time, with 285,000 transistors.
Intel had scheduled 50 person-years to design the processor, but it was falling behind schedule.
The design team decided to automate chunks of the layout, developing "automatic...
Nabeel S. Qureshi
Notes on Puzzles
1. I mostly don’t play chess anymore — it’s too addictive, and tends to take over your brain in a...
a year ago
1. I mostly don’t play chess anymore — it’s too addictive, and tends to take over your brain in a way I don’t like — but one habit I’ve retained is solving puzzles.
Arduino Blog
A stroopwafel doneness detection device
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a...
6 months ago
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a sweet treat as well. That is a stroopwafel, a crispy little waffle-syrup sandwich that the Dutch like to rest on top of their drink so that the rising heat will soften the pastry....
Christian Selig
First on New Blog
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will...
a year ago
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will remove.
This goat’s name is apparently Gubgub, and very cute.
Matt Mullenweg
Falling Snow
The talented Felix Arntz has given an incredible Christmas gift to the WordPress community with his...
a month ago
The talented Felix Arntz has given an incredible Christmas gift to the WordPress community with his fast, light, and accessible Snow Fall plugin, which is live on this site and you can install on yours. I hope everyone is having a happy holidays! Search for “snow fall” in your...
Jonas Hietala
How I made a kick-ass cover for my self-published book
If you want to publish a book, one of the most important things to consider is the cover—after all,...
over a year ago
If you want to publish a book, one of the most important things to consider is the cover—after all, we judge the book by the cover.
And I did it the universally recommended way:
I hired a designer.
Simple, right?
But real talk; it’s not exactly that simple and I did a bunch of...
Willem's Blog
iPad Pro as primary computer
Is the time right to use an iPad as primary development platform to get some real work done?
over a year ago
Is the time right to use an iPad as primary development platform to get some real work done?
Matt Blewitt
Unreasonably Effective Patterns
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data...
over a year ago
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data services. This post explores three patterns used to reduce operational burden and increase system safety and resiliency: state machines (and associated state-transition tables),...
Home on Erik...
Annoy 1.10 released, with Hamming distance and Windows support
I've been a bit bad at posting things with a regular cadence lately, partly because I'm trying to...
over a year ago
I've been a bit bad at posting things with a regular cadence lately, partly because I'm trying to adjust to having a toddler, partly because the hunt for clicks has caused such a high bar for me that I feel like I have to post something Pulitzer-worthy.
Jonas Hietala
Let's build a VORON: Filters
I can print, but the printer is missing a very important thing that I alluded to in the previous...
a year ago
I can print, but the printer is missing a very important thing that I alluded to in the previous post: filtering dangerous particles and fumes.
This is mostly covered by the kit, but I was missing some parts from the print it forward and the kit didn’t include a HEPA...
Vitalik Buterin's...
Updating my blog: a quick GPT chatbot coding experiment
over a year ago
Home on Erik...
The lane next to you is more likely to be slower than yours
Saw this link on Hacker News the other day: The Highway Lane Next to Yours Isn’t Really Moving Any...
over a year ago
Saw this link on Hacker News the other day: The Highway Lane Next to Yours Isn’t Really Moving Any Faster
The article describes a phenomenon unique to traffic where cars spread out when they go fast and get more compact when they go slow.
Jonas Hietala
An Epic Start
Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and...
over a year ago
Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and went to the bathroom. After I was done, still pretty tired, I made a big mistake. I checked the current theme for Ludum Dare 29: Beneath the Surface and guess what? Now I wasn’t tired...
Willem's Blog
Some thoughts on touch screen user interface design
I am working on a new app involving personal health that requires a natural intuitive interface that...
over a year ago
I am working on a new app involving personal health that requires a natural intuitive interface that works well on touch screens. It's good to check out some best practices for touch UI design
Jonas Hietala
Widening the horizon
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in...
over a year ago
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in making games lately and I’ve been doing different things, just to get my ideas and my motivation up. As I said in an earlier post I wanted a break from Experimental Games and I...
Push to Prod
How We Built a Self-Healing System to Survive a Terrifying Concurrency Bug At Netflix
Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's...
4 months ago
Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's how we managed to survive.
Willem's Blog
Abandoning my own tablet OS
After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro...
over a year ago
After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro and the Mac.
Jonas Hietala
A Week of Headache
This was supposed to be a productive week with lots and lots of Perl and Ada but instead I’ve had...
over a year ago
This was supposed to be a productive week with lots and lots of Perl and Ada but instead I’ve had this big headache all week, and some the week before and it’s gotten pretty bad so I can’t really concentrate on anything really. The electronics assignment was a bitch and it took a...
Louwrentius
Understanding Ceph: open-source scalable storage
Introduction
In this blog post I will try to explain why I believe Ceph is such an interesting...
over a year ago
Introduction
In this blog post I will try to explain why I believe Ceph is such an interesting storage solution. After you finished reading this blog post you should have a good high-level overview of Ceph.
I've written this blog post purely because I'm a storage enthusiast and I...
Ian's Blog
Hardware-Accelerated Video Encoding with Intel Arc on Redhat Linux
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but...
2 months ago
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but ask anybody who's used a Linux machine and they'll tell you of the horrors of Nvidia or AMD drivers.
Intel, on the other hand, seems to be taking things in a much different, much...
./techtipsy
Your Wi-Fi might be terrible because of Dynamic Frequency Selection (DFS)
For a few months, I had issues with my Wi-Fi network. The 2.4 GHz network would be fine, but the 5...
2 months ago
For a few months, I had issues with my Wi-Fi network. The 2.4 GHz network would be fine, but the 5 GHz one would
suddenly stop working and completely disappear from the available Wi-Fi networks. OpenWRT upgrades also didn’t improve
the situation. This was very annoying.
After...
Arduino Blog
Seaside Sweeper keeps beaches pristine
Without anyone caring for them, beaches quickly become trash-covered swaths of disappointment. That...
8 months ago
Without anyone caring for them, beaches quickly become trash-covered swaths of disappointment. That care is necessary to maintain the beautiful sandy havens that we all want to enjoy, but it requires a lot of labor. A capstone team of students from the University of Colorado...
Home on Erik...
More Luigi!
Elias Freider just talked about Luigi at PyData 2013:
The presentation above is much better than one...
over a year ago
Elias Freider just talked about Luigi at PyData 2013:
The presentation above is much better than one I put together a few weeks ago. In case anyone is interested I'll include it too:
Willem's Blog
Enjoy a festival without alcohol
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during...
over a year ago
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during the music festival.
Applied Cartography
Auth.js + Square
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the...
8 months ago
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the periphery of your understanding, and a Third South project has led me to spin up a small Next project using Bun [1] and Auth.js (nee next-auth), which has been quite bad and I...
Willem's Blog
Dig for dummies
Learn how to use the dig command to query domain name servers to find the source of network...
over a year ago
Learn how to use the dig command to query domain name servers to find the source of network problems, IP-addresses, hostnames, mail servers and related info.
Birchtree
That app could probably be a website
P. Martin Ortiz writing for Rogue Engine: Your App Should Have Been a Website
Some companies push...
2 weeks ago
P. Martin Ortiz writing for Rogue Engine: Your App Should Have Been a Website
Some companies push for app installations because they gain access to more permissions than they would in the browser. Apps allow them to collect more data and track user activity, often under the...
Vitalik Buterin's...
La Guía Incompleta de los Rollups
over a year ago
Gwern.net Newsletter
July 2020 gwern.net newsletter
Links on the Uighurs, authoritarianism, negative emissions, AI overhang; 1 movie & 2 anime reviews
over a year ago
Links on the Uighurs, authoritarianism, negative emissions, AI overhang; 1 movie & 2 anime reviews
latest projects -...
Hand-cranked Flux Capacitor
[Concept] Control the flow of time
a year ago
[Concept] Control the flow of time
Louwrentius
How to compile HAProxy from source and setup a basic configuration
To learn more about HAProxy I decided to compile it from source and use it to load-balance traffic...
over a year ago
To learn more about HAProxy I decided to compile it from source and use it to load-balance traffic to louwrentius.com across two different web servers.
I run HAProxy on a VPS based on Ubuntu 12.04 LTS. Let's dive right in.
First, we need to download the source. Don't copy/pased...
Willem's Blog
Business in a bag
After much testing I have selected a bag and set of cases to fit my entire business, wherever I go.
over a year ago
After much testing I have selected a bag and set of cases to fit my entire business, wherever I go.
GitButler
GitButler is now Fair Source
GitButler is now officially one of the first members of the Fair Source movement, helping to shift...
5 months ago
GitButler is now officially one of the first members of the Fair Source movement, helping to shift closed source to publicly available software by default.
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
7 months ago
Willem's Blog
Half Marathon
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness -...
10 months ago
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness - read about my experiences!
Arduino Blog
Making fire detection more accurate with ML sensor fusion
The mere presence of a flame in a controlled environment, such as a candle, is perfectly acceptable,...
5 months ago
The mere presence of a flame in a controlled environment, such as a candle, is perfectly acceptable, but when tasked with determining if there is cause for alarm solely using vision data, embedded AI models can struggle with false positives. Solomon Githu’s project aims to lower...
Louwrentius
Linux on Mac Mini - boot after power failure
When using a Mac Mini as a server or router, it is very nice if the machine
automatically boots if a...
over a year ago
When using a Mac Mini as a server or router, it is very nice if the machine
automatically boots if a power failure has occurred.
User chirhoxi on the ubuntu forum found out how this can be achieved:
http://ubuntuforums.org/showthread.php?t=1209576
Basically you need one of these...
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...
Vitalik Buterin's...
The bulldozer vs vetocracy political axis
over a year ago
seangoedecke.com RSS...
Glue work considered harmful
“Glue work” is an concept Tanya Reilly came up with in 2019. The idea is that there’s a large amount...
a month ago
“Glue work” is an concept Tanya Reilly came up with in 2019. The idea is that there’s a large amount of unglamorous work that every team…
detreville
Newsletter 1: What's next?
This is the first in a series of newsletters covering this blog
a year ago
This is the first in a series of newsletters covering this blog
Matt Mullenweg
Rhino Dehorning
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles,...
3 months ago
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles, elephants. Today wasn’t great: I witnessed a rhino shot with a tranquilizer from a helicopter, then it was held down, had its horns cut off, and then shaved down. I have some photos and...
Vitalik Buterin's...
A Note on Metcalfe's Law, Externalities and Ecosystem Splits
over a year ago
watchTowr Labs
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623)
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a month ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely.
Cleo have a...
Abort Retry Fail
The History of Windows 3
Windows becomes competitive
a year ago
Windows becomes competitive
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 5: The Purge
2 months ago
computers are bad
2023-06-12 radio on the tv
Like many people in my generation, my memories of youth are heavily defined by
cable television. I...
a year ago
Like many people in my generation, my memories of youth are heavily defined by
cable television. I was fortunate enough to have a premium cable package in
my childhood home, Comcast's early digital service based on Motorola equipment.
It included a perk that fascinated me but...
Louwrentius
Improving web application security by implementing database security
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement...
over a year ago
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement defense-in-depth security in web applications. 99.9% of applications use a single database account, with root-like privileges. Easiest for the developer of course, and the database is just a...
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
./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...
Posts on Made of...
What's with ML software and pickles?
I have spent many years as an software engineer who was a total outsider to machine-learning, but...
a year ago
I have spent many years as an software engineer who was a total outsider to machine-learning, but with some curiosity and occasional peripheral interactions with it. During this time, a recurring theme for me was horror (and, to be honest, disdain) every time I encountered the...
Notes on software...
Lessons learned streaming building a Scheme-like interpreter in Go
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like...
a year ago
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like language (minus macros and arrays and
tons of stuff).
I picked this simple topic because I wanted a low-stakes way to learn
what I did not know about making videos.
Here was the...
Home on Erik...
A brief history of Hadoop at Spotify
I was talking with some data engineers at Spotify and had a moment of nostalgia.
2008
I was writing...
over a year ago
I was talking with some data engineers at Spotify and had a moment of nostalgia.
2008
I was writing my master's thesis at Spotify and had to run a Hadoop job to extract some data from the logs.
Odds and Ends of...
Keir Starmer needs to prepare for a world without America
Today's empires, tomorrow's ashes.
2 months ago
Today's empires, tomorrow's ashes.
Style over Substance
Peak Design quick-connect Leash and Cuff straps
My camera collection has been growing steadily over the years, but it’s been expanding even faster...
over a year ago
My camera collection has been growing steadily over the years, but it’s been expanding even faster during the COVID-19 lockdowns. Online shopping therapy keeps me sane while I’m cooped up at home, and with easy access to eBay and other auction sites my GAS – photographers...
Posts on Made of...
A week with the iPhone
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about...
over a year ago
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about it.
First, the little things. It is, in typical Apple fashion, an incredibly slick piece of work. Scrolling and zooming images or webpages is simple, easy, and, well, just fun to do...
Neil Madden
CVE-2022-21449: Psychic Signatures in Java
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to...
over a year ago
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to get out of trouble by showing an identity card which is actually completely blank. Of course, this being Doctor Who, the card is really made out of a special “psychic paper“, which...
Louwrentius
How to determine which process causes IO ?
There is a nifty little program called 'iotop'. Iotop is part of Debian or
Ubuntu and can be...
over a year ago
There is a nifty little program called 'iotop'. Iotop is part of Debian or
Ubuntu and can be installed with a simple apt-get.
Once you have determined with 'top' that the system is waiting on IO-access,
It is nice to know
which process is responsibe for this IO. Therefore, you...
Old Vintage...
When the Power Macintosh ran NetWare (featuring Wormhole and Cyberpunk)
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple...
a year ago
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple developer who was part of the NetWare team. Thank you!
the network operating system of the 1990s. Nothing was quite like it. Until Windows NT muscled in on its action near the end of the...
Simply Explained
Good Home Automation Should be Boring
I'm a huge fan of Home Assistant to automate various things around the house. I often look at other...
over a year ago
I'm a huge fan of Home Assistant to automate various things around the house. I often look at other people's setup for inspiration, and one thing struck me. Many people have cluttered dashboards and use Home Assistant to track just about any metric they can.That's quite different...
Jonas Hietala
2020 in review
And so 2020 has come to an end. On a global scale it’s been quite a horrible year, and for me...
over a year ago
And so 2020 has come to an end. On a global scale it’s been quite a horrible year, and for me personally it’s been both good and bad. Luckily we haven’t been directly affected by COVID too much, but it’s still been very disruptive. Either way as I’ve done for years now it always...
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...
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...
seangoedecke.com RSS...
Protecting your time from predators in large tech companies
If you’re a competent software engineer at a large tech company, your time is in very high demand....
3 days ago
If you’re a competent software engineer at a large tech company, your time is in very high demand. Lots of people will want you to do things…
Vitalik Buterin's...
Having a safe CEX: proof of solvency and beyond
over a year ago
Posts on Made of...
Using X forwarding with screen by proxying $DISPLAY
If you’re reading this blog, I probably don’t have to explain why I love GNU screen. I can keep a...
over a year ago
If you’re reading this blog, I probably don’t have to explain why I love GNU screen. I can keep a long-running session going on a server somewhere, and log in and resume my session without losing any state.
I also love X-forwarding. I love being able to log into a remote server...
Home on Erik...
Mortality statistics and Sweden's "dry tinder" effect
We live in a year of about 350,000 amateur epidemiologists and I have no desire to join that “club”....
over a year ago
We live in a year of about 350,000 amateur epidemiologists and I have no desire to join that “club”. But I read something about COVID-19 deaths that I thought was interesting and wanted to see if I could replicated it through data.
Louwrentius
overview of open-source load balancers
I was looking at open-source load balancing software and it seems that there isn't a nice overview...
over a year ago
I was looking at open-source load balancing software and it seems that there isn't a nice overview except from this website, although many of the listed projects seem dead.
I've made a selection of products that seem to be relevant. The biggest problem with open-source software...
Notes on software...
io_uring basics: Writing a file to disk
King and I wrote a blog
post
about building an event-driven cross-platform IO library that...
a year ago
King and I wrote a blog
post
about building an event-driven cross-platform IO library that used
io_uring on Linux. We sketched out how it works at a high level but I
hadn't yet internalized how you actually code with io_uring. So I
strapped myself down this week and wrote...
Willem's Blog
Cutting Cloud Costs
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud...
a year ago
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud expenses!
Vitalik Buterin's...
Multidimensional gas pricing
8 months ago
Vitalik Buterin's...
Layer 2s as cultural extensions of Ethereum
7 months ago
Arduino Blog
Two NEW Arduino Plug and Make Kit projects recreate iconic vintage games
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix...
4 months ago
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix of Arduino designers, engineers, and managers to sit down and brainstorm new ideas to have fun with it? Well, at least one of them is guaranteed to come up with an adorable,...
Old Vintage...
xa (xa65) 2.4.1
A quick one: xa (xa65), André Fachat's compatible fast two-pass cross-assembler for 6502, 65C02,...
10 months ago
A quick one: xa (xa65), André Fachat's compatible fast two-pass cross-assembler for 6502, 65C02, R65C02 and 65816 processors that André and I maintain is now at version 2.4.1. This optionally expands the syntax from 2.4.0 and fixes some bugs primarily with relocatable .o65...
On Life and Lisp
OpenGL 3.1 on Asahi Linux
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost:...
a year ago
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost: leapfrogging from OpenGL 2.1 over OpenGL 3.0 up to OpenGL 3.1! Similarly, the OpenGL ES 2.0 support is bumping up to OpenGL ES 3.0. That means more playable games and more functioning...
Arduino Blog
Technology meets creativity in two interactive art student projects
Art and engineering are not separate concepts. There is a great deal of overlap between the two and...
3 months ago
Art and engineering are not separate concepts. There is a great deal of overlap between the two and many modern disciplines increasingly blur those lines. Mónica Riki is an “electronic artist and creative coder” who embodies that idea: you might remember her and her incredible...
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...
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...
Style over Substance
Guy’s Cool Tools
This is a placeholder post! I’m a huge fan of Kevin Kelly’s Cool Tools site and have loved their...
over a year ago
This is a placeholder post! I’m a huge fan of Kevin Kelly’s Cool Tools site and have loved their recommendations for years. So much, so that I even started a Pinterest board filled with my own recommendations. But after a few years of running into the limitations of the form, I...
Jonas Hietala
Netrunner Lindhska Store Championship Örebro
After the awesomeness during the previous store championship, I decided to go to the store...
over a year ago
After the awesomeness during the previous store championship, I decided to go to the store championship at Lindhska Bokhandel in Örebro.
I brought a modified version of the same corp I used the last time, a Blue Sun kill deck and a new runner with Leela Patel. See the links for...
latest projects -...
Motorised Camera Slider
[Hardware] Simple smooth motor mod
6 months ago
[Hardware] Simple smooth motor mod
Jorge Arango
Prescriptive and Descriptive Information Architectures
There are two stances you can take toward language in your website or app: prescriptive or...
a week ago
There are two stances you can take toward language in your website or app: prescriptive or descriptive. Which you choose influences the system’s understandability and findability.
The terms come from linguistics. I heard about them in a radio show (or was it a podcast?) many...
Neil Madden
Macaroon access tokens for OAuth: Part 2 – transactional auth
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a...
over a year ago
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a lightweight and easy-to-deploy alternative to proof of possession (PoP) schemes for securing tokens in browser-based apps. The same techniques can be adapted to secure tokens in...
Jonas Hietala
Site restyle and update
I’m not sure how I got started but I recently read an excellent book about typography: Butterick’s...
over a year ago
I’m not sure how I got started but I recently read an excellent book about typography: Butterick’s Practical Typography. It’s free and there’s a section Typography in ten minutes if you want the important bits.
He makes a pretty good case for why it matters when he points out the...
Simply Explained
Home Energy Monitor: V2
My DIY home energy monitor has been running for almost a year now. It's been recording my...
over a year ago
My DIY home energy monitor has been running for almost a year now. It's been recording my electricity consumption every second and everything is neatly archived in my AWS account.Still, though, there is room for improvement. It's time to look back, evaluate & improve the design....
axio.ms
Internet of kitchen lighting, with OSC
This project was completed in June 2015. Wow, is it 2017 already?
In this post, I’d like to say...
over a year ago
This project was completed in June 2015. Wow, is it 2017 already?
In this post, I’d like to say that I wrote a useful little bit of software and built up a crappy hack to demonstrate it but, secretly, the crappy hack came first and I’ve retroactively found something vaguely...
Louwrentius
Understanding IOPS, latency and storage performance
Update 2020: I've written another blogpost about this topic, including some benchmark examples.
When...
over a year ago
Update 2020: I've written another blogpost about this topic, including some benchmark examples.
When most people think about storage performance, they think about throughput. But throughput is similar to the top speed of a car. In reality, you will almost never reach the top...
Lighthouse Blog
Updates December 01: UX improvements
a year ago
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...
Matt Mullenweg
Bezos at Dealbook
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew...
a month ago
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew Ross Sorkin, but this one with Jeff Bezos was particularly good.
Louwrentius
Linode hacked: thoughts about cloud security
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of...
over a year ago
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of existing users regarding the Linode management console.
Resetting passwords is not something you do when under a simple attack such as a DDOS attack. Such a measure is only taken...
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
11 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Jonas Hietala
2014 in Review
Previous reviews: 2010, 2011, 2012 and 2013.
2014 Geek Achievements
Solved 73 UVa problems.
Won a...
over a year ago
Previous reviews: 2010, 2011, 2012 and 2013.
2014 Geek Achievements
Solved 73 UVa problems.
Won a turn in IMPA and solved a bunch of problems.
Completed a doctorand course about algorithmic problem solving.
Finished my 4 first years in University.
Became a contributor to rust and...
Willem's Blog
Born with MCADD
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were...
over a year ago
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were lucky to be just in time!
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a...
over a year ago
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a database/sql driver
In this series we'll write a rudimentary database from
scratch in Go. Project source code is available on
Github.
In this first post we'll build enough of a parser to...
Notes on software...
How to recommend books, or, stop recommending SICP
Many "must-read" books are not well-written. I try to read a
lot, but I
still have a low tolerance...
over a year ago
Many "must-read" books are not well-written. I try to read a
lot, but I
still have a low tolerance for bad writing and bad editing. I write
this post both to discourage thoughtless recommendations and to
encourage the receivers of bad recommendations.
For software developers,...
Home on Erik...
ML+Hadoop at NYC Predictive Analytics
I was just at the NYC Predictive Analytics meetup talking about how we build machine learning...
over a year ago
I was just at the NYC Predictive Analytics meetup talking about how we build machine learning algorithms using Hadoop to power music recommendations.
Great meetup, where we had two speakers, me and Blake Shaw from Foursquare.
computers are bad
2024-06-02 consumer electronics control
In a previous episode, I discussed audio
transports
and mention that they have become a much less...
7 months ago
In a previous episode, I discussed audio
transports
and mention that they have become a much less important part of the modern home
theater landscape. One reason is the broad decline of the component system:
most consumers aren't buying a television, home theater receiver,...
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!
computers are bad
2024-03-27 telephone cables
So let's say you're working on a household project and need around a dozen
telephone cables---the...
10 months ago
So let's say you're working on a household project and need around a dozen
telephone cables---the ordinary kind that you would use between your telephone
and the wall. It is, of course, more cost effective to buy bulk cable, or
simply a long cable, and cut it to length and attach...
Louwrentius
8 TB RAID 6 Linux software RAID using EXT4
Mobo: Asus P5Q-EM DO ( 6x sata)
CPU: Core 2 Duo E7400
RAM: 4 GB
Controller; HighPoint RocketRAID...
over a year ago
Mobo: Asus P5Q-EM DO ( 6x sata)
CPU: Core 2 Duo E7400
RAM: 4 GB
Controller; HighPoint RocketRAID 2314 (16x poorten)
PSU: CooMas Silent Pro M 600W ATX2 (definitely not overkill)
HD: Samsung 1 TB SAT2 HD103UJ (10x)
OS: Debian Lenny with custom kernel (backported)
FS: EXT4
RAID...
Simply Explained
ESP32 Cam: cropping images on device
The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640...
over a year ago
The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640 sensor has a max resolution of 1600x1200, but sometimes you don't need the entire image.In this post I'll show how to crop the images on the ESP32 itself, before sending it of to...
Louwrentius
Additional proof that Apple is ditching the optical drive
I'm a strong advocate of killing the optical drive. As of 2011, there is no need for it anymore....
over a year ago
I'm a strong advocate of killing the optical drive. As of 2011, there is no need for it anymore. Laptops could get lighter, smaller or have more room for additional battery capacity if the optical drive would no longer be present.
In my life, I never see people use the optical...
Old Vintage...
Reversing the Web-@nywhere Watch: browse fragments of the Web on your wrist
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection...
a year ago
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection in your house was between the cordless phone and the wall, anything having to do with the Web was best consumed in small bites (pun intended). If you wanted to take data with you,...
Willem's Blog
Write your own words
Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for...
2 months ago
Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for human creativity.
Home on Erik...
ML at Twitter
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is...
over a year ago
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is pretty interesting. Everything is a Pig workflow and then they do everything as UDF's.
This approach seems pretty interesting.
Arduino Blog
KiPneu makes soft robotic biomimetics accessible to STEAM students
Biomimicry, which is a method for developing new technology inspired by nature, has been one of...
6 months ago
Biomimicry, which is a method for developing new technology inspired by nature, has been one of humanity’s greatest assets. But systems reliant on soft tissue, such as an octopus’s tentacles, have been notoriously difficult to reproduce in the robotics world. To give STEAM...
./techtipsy
DIY cloud gaming setup with VFIO, Parsec and AMD
This is a follow-up to my previous post where I covered
the VFIO setup in general. For many people...
over a year ago
This is a follow-up to my previous post where I covered
the VFIO setup in general. For many people that would have been good enough, but my goal with this setup was to have a
powerful gaming setup that I could access from my living room PC with 20 meters of Ethernet cables...
computers are bad
2024-11-23 cablesoft
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful...
2 months ago
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful teletext services in the UK and Europe. "Teletext" is
sometimes a confusing term because of its apparent relation to telecom-industry
technologies like the teletypewriter and...
Jonas Hietala
September theme: Failure
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon...
over a year ago
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon I hope and again I’m following Experimental Gameplay Project’s site.
Let’s rock!!
Jonas Hietala
The Chronicles of Bim: The 100 Fake Afros
Aaah feels good having a game ready after the last month’s failure! This time it’s a small...
over a year ago
Aaah feels good having a game ready after the last month’s failure! This time it’s a small shooter.
The Chronicles of Bim: The 100 Fake Afro
Bullet masher - can you keep up with 100 enemies at the screen?
Instruction
W: up
Credits
Music: The Last Prophecy - Matthew Le Blanc...
Ken Shirriff's blog
Inside an unusual 7400-series chip implemented with a gate array
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple...
10 months ago
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple die,
implemented in a straightforward, cost-effective way.
However, when I looked inside a military-grade chip built by Integrated Device Technology (IDT)4
I found a very unexpected...
Posts on Made of...
Dear Twitter: Stop screwing over your developers.
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online...
over a year ago
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online communities, and is a surprisingly effective way to spread news and information to lots of people online. One of the things that I’ve loved about Twitter is their API, and how open and...
Nabeel S. Qureshi
Video Games are the Future of Education
The things you learn by yourself stick; the things that are “taught” to you do not stick.
over a year ago
The things you learn by yourself stick; the things that are “taught” to you do not stick.
Good Enough
Strong Prototypes, Weakly Held
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in...
a year ago
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in the Bush of Ghosts by Brian Eno and David Byrne as my soundtrack. This is an album I've never listened to before, and apparently I'm supposed to love it or hate it. Mostly the...
Posts on Made of...
Implementing a declarative mini-language in the C preprocessor
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time,...
over a year ago
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time, I want to talk about the tricks I used to implement a declarative minilanguage using the C preprocessor (and some GCC extensions).
The Problem We want to write some toplevel...
Push to Prod
Best Questions and Answers to the “Terrifying Netflix Concurrency Bug” Post
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so...
a month ago
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so complicated? Plus many others.
Odds and Ends of...
Odds and Ends #53: Now TfL is betting on AI cameras to improve safety
Plus Leicester's neo-imperial ambitions, why governments are too scared to govern, a theory on why...
2 days ago
Plus Leicester's neo-imperial ambitions, why governments are too scared to govern, a theory on why Starship exploded... and more!
Gwern.net Newsletter
December newsletter
December 2020 gwern.net newsletter with links on AI and technology; major new site feature:...
over a year ago
December 2020 gwern.net newsletter with links on AI and technology; major new site feature: fully-generalized recursive popups.
Opsbros
Debug Header
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor...
over a year ago
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor driver connected to a Raspberry Pi, I thought a breakout header might help; so I whipped up this little board.
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...
watchTowr Labs
Auth. Bypass In (Un)Limited Scenarios - Progress MOVEit Transfer (CVE-2024-5806)
In the early hours of a day in a month in 2024, watchTowr Labs was sent a chat log:
13:37 -!-...
7 months ago
In the early hours of a day in a month in 2024, watchTowr Labs was sent a chat log:
13:37 -!- dav1d_bl41ne [def_not_phalanx@kernel.org] has joined #!hack (irc.efnet.nl)
13:37 -!- dav1d_bl41ne changed the topic of #!hack to: mag1c sh0w
Arduino Blog
This unique wall sconce welcomes you home with warm light
Have you ever walked through your front door after a long day of work and realized that your home...
a month ago
Have you ever walked through your front door after a long day of work and realized that your home just isn’t as inviting as it seems like it should be? While it may not work miracles, some nice and welcoming lighting can make a big difference. That’s why Lauren Palazzi made this...
Push to Prod
Making an AB Test Allocator 20x Faster Using Non-blocking IO
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it...
2 months ago
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it effectively.
Computer Ads from...
IBM RISC System/6000 Family
Just when PowerSeeker thought they had nowhere to go...
8 months ago
Just when PowerSeeker thought they had nowhere to go...
Good Enough
Good Enough Marketing: The Preparation
We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But...
a year ago
We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But that’s a difficult task for us because, honestly, we’re terrible not good at self-promotion. We’d rather spend time making things than talking about the things we’ve made.
We’d...
Applied Cartography
PSA: mess around with Keystatic
We've been using Keystatic in Buttondown for around six months now: we migrated most of the content...
10 months ago
We've been using Keystatic in Buttondown for around six months now: we migrated most of the content on the marketing site (which is backed by Next) from MDX onto Keystatic, and were so happy with the experience that the upcoming rebuild of the docs site will be featuring...
Louwrentius
Performance monitoring using dstat
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is...
over a year ago
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is currently happening on your Linux box.
Dstat allows you to monitor the system load, disk troughput, disk io, network
bandwith, and many more items.
Dstat is so valuable because it...
Arduino Blog
3D printing an affordable robot arm
If you have an interest in robotics, then a robot arm is a great educational tool to start your...
6 months ago
If you have an interest in robotics, then a robot arm is a great educational tool to start your journey. But professional robot arms are expensive and the DIY route is more informative anyway. That’s especially true if you take the time to design the arm yourself, as did Oliver...
Home on Erik...
Giving more tools to software engineers: the reorganization of the factory
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe...
over a year ago
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe I'm an optimistic person, because my viewpoint is the complete opposite! I had my first job as a software engineer in 1999, and in the last two decades I've seen software engineering...
anderegg.ca
The trouble with openness
Back in the early 2000s, there was this nebulous idea called the semantic web. It never really went...
a month ago
Back in the early 2000s, there was this nebulous idea called the semantic web. It never really went anywhere, but I found it exciting at the time.
One piece that particularly spoke to me was the notion of including data in websites so that web scrapers could easily get at it....
Arduino Blog
BrainPatch.AI: How a British neurotech startup built a working prototype fast, using Arduino Nano 33...
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and...
4 months ago
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and effective non-invasive interfaces that can deliver tiny milliamp currents to the right stimulation location on the head, neck or body. One example of the new players in this field is...
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
6 months ago
Good Enough
TIL: Rails Testing
I had to figure out how to run browser-based tests in Rails again. In part that meant working around...
a year ago
I had to figure out how to run browser-based tests in Rails again. In part that meant working around my lack of Chrome. Rails System Tests with Safari.
I also had some problems with Rails Turbo Drive taking over EVERYTHING, which required me to figure out how to deal with a Rails...
Notes on software...
Build a serverless ACID database with this one neat trick (atomic PutIfAbsent)
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability,...
3 months ago
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability, and the number of open-source
implementations, it's quickly becoming the DuckDB of serverless
transactional databases for analytics workloads. Iceberg is a
contender too, and is...
Opsbros
IBM M13 Trackpoint USB Converter
Me, never not on the lookout for an opportunity to design something, whether needed or not, worked...
over a year ago
Me, never not on the lookout for an opportunity to design something, whether needed or not, worked with @micon to design a module that could fit snugly in the keyboard, and provide a USB-C interface directly into the Keyboard/Mouse module.
Louwrentius
Affordable server with server-grade hardware part II
If you want to build a home server, it may be advised to actually use server-grade components. I...
over a year ago
If you want to build a home server, it may be advised to actually use server-grade components. I documented the reasons for choosing server-grade hardware already in an earlier post on this topic.
It is recommended to read the old post first. In this new post, I only show new...
Simply Explained
Retrospective: 4 years on YouTube
Every year I sit down and take a look at how my YouTube channel has been doing. I reflect, evaluate,...
over a year ago
Every year I sit down and take a look at how my YouTube channel has been doing. I reflect, evaluate, and set goals for the coming year. This year is no exception. January 13th, 2020, marks my fourth year on YouTube. Time to do a little retrospective.
Toni Lijic's Blog
2024 Year in Review
Everything that happened to me this year
3 weeks ago
Everything that happened to me this year
Arduino Blog
GLEWBOT scales buildings like a gecko to inspect wall tiles
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the...
8 months ago
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the windows are your house is a trivial chore, but cleaning the windows on a skyscraper is serious undertaking that needs specialized equipment and training. To make exterior wall...
Neil Madden
Entity authentication with a KEM
In cryptography, the process of authenticating a user (or app/service) is known as entity...
a year ago
In cryptography, the process of authenticating a user (or app/service) is known as entity authentication or identification (to distinguish it from message authentication or data origin authentication). There are lots of ways to do this. In this post I’m going to talk about...
Matt Blewitt
7 Languages in 7 Weeks for 2025
It’s been over 14 years since the original 7 Languages in 7 Weeks was first published, giving a...
a month ago
It’s been over 14 years since the original 7 Languages in 7 Weeks was first published, giving a hands on tour of Ruby, Clojure, Haskell, Io, Scala, Erlang and Prolog. Ruby achieved critical mass, to some degree so did Scala, with the others being popular within their specific...
Lighthouse Blog
Updates September 16: Explore all available articles of a feed
4 months ago
Jonas Hietala
Why I still blog after 15 years
Time flies when you’re having fun.
Before you know it, your little babies have started school, you...
3 months ago
Time flies when you’re having fun.
Before you know it, your little babies have started school, you celebrate the 30th anniversary of Jurassic Park, and that little blog you started have now been going for 15 years.
15 years is a long time; longer than I’ve been waiting for Winds...
Matt Blewitt
Regular Restarts Are Good, Actually
Anecdotally, one of the more maligned features of the Heroku platform are the 24-hour limits on...
2 months ago
Anecdotally, one of the more maligned features of the Heroku platform are the 24-hour limits on compute units, known as “dynos”. This is actually a good thing, but very misunderstood.
Home on Erik...
Ratio metrics
We run a ton of A/B tests at Spotify and we look at a ton of metrics. Defining metrics is a little...
over a year ago
We run a ton of A/B tests at Spotify and we look at a ton of metrics. Defining metrics is a little bit of an art form. Ideally you want to define success metrics before you run a test to avoid cherry picking metrics.
Jonas Hietala
Ludum Dare 17 - an hour or two into it
I decided to participate in the Ludum Dare this time, even though I’ve spent the whole day on a...
over a year ago
I decided to participate in the Ludum Dare this time, even though I’ve spent the whole day on a massage course (which by the way was pretty darn good), and about halfway there this is what I’ve done:
Chockingly… ugly
All is not what meets the eye though, I’ve got the basics done...
Home on Erik...
Miscellaneous unsolicited (and possibly biased) career advice
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of...
over a year ago
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of mistakes and luck so I thought I'd share some.
Honestly, I feel like I've mostly benefitted from luck.
Posts on Made of...
Transformers for software engineers
Ever since its introduction in the 2017 paper, Attention is All You Need, the Transformer model...
over a year ago
Ever since its introduction in the 2017 paper, Attention is All You Need, the Transformer model architecture has taken the deep-learning world by storm. Initially introduced for machine translation, it has become the tool of choice for a wide range of domains, including text,...
Posts on Made of...
A Very Subtle Bug
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for...
over a year ago
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for complex reasons”. As a class about designing and building complex systems, it’s a reminder that failure modes are subtle and often involve strange interactions between multiple parts...
Jonas Hietala
Focusing Attention: Study Hacking
A week of drawing is over, but I didn’t draw that much. It was a little bit of a fail from my...
over a year ago
A week of drawing is over, but I didn’t draw that much. It was a little bit of a fail from my part.
But the past is the past and this week I’m going to be study focused. Not that I need to study, but I really need to rework my study technique. I’ve been going on like a classical...
Notes on software...
Writing an efficient object previewer for JavaScript
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.
Good Enough
TIL: Tapback Keyboard Shortcuts
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant...
a year ago
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant past, simple reactions to messages were added: what Apple calls Tapbacks.
These are great for a quick way to say yes (or no, or WTF!?!), but they are a bit of a pain to actually...
Louwrentius
The iPhone, iPad and iOS are powering a revolution
Most people just don't understand computers. Are these people dumb? Some may
be dumb, but the people...
over a year ago
Most people just don't understand computers. Are these people dumb? Some may
be dumb, but the people who make them are maybe even dumber. Because they
can't seem to figure out how to create a computer that the majority of people
understand.
When the original macintosh arrived at...
noahbuscher.com
Zed Public Beta
I have been a dedicated Nova user for over three years. I switched over from VSCode after tiring of...
a year ago
I have been a dedicated Nova user for over three years. I switched over from VSCode after tiring of the slow performance and "uncanny valley" interface. I'm a sucker for a well-done native app, and Panic really hit the sweet spot with Nova: a beautiful, minimal editor that felt...
Arduino Blog
Control your Raspberry Pi GPIOs with Arduino Cloud using Python | Part II
As a Python developer, you’re probably eager to control and monitor your Raspberry Pi GPIOs...
8 months ago
As a Python developer, you’re probably eager to control and monitor your Raspberry Pi GPIOs remotely. Well, you have landed in the right place. This article builds upon our previous introduction to “Visualize your Raspberry Pi data with Arduino Cloud | Part I.” Now, we’ll...
Good Enough
Season 1, Issue 5: Promotes Regularity
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each...
over a year ago
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each have at least two children in our homes, begging for attention. And we each truly appreciate extended breaks as a means of reinvigorating ourselves to the ever important task of...
Jonas Hietala
Rewriting my Neovim config in Lua
This screenshot betrays just how much productive time was wasted setting this up.
I’ve got tons of...
a year ago
This screenshot betrays just how much productive time was wasted setting this up.
I’ve got tons of things to do; clean the bathrooms, prototype an idea for a SaaS and ponder world peace.
So naturally the procrastination took over and I rewrote my Neovim configuration in...
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...
Notes on software...
Implementing a simple jq clone in Go, and basics of Go memory profiling
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of...
over a year ago
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of each object it reads. It won't be able to
do filters, mapping, etc.
$ cat large-file.json | head -n2 | ./jqgo...
Willem's Blog
Swimming and cycling with Apple Watch
This month I tested the newest watchOS while swimming and cycling.
over a year ago
This month I tested the newest watchOS while swimming and cycling.
Matt Blewitt
Modifying pg_dump To Exclude Event Triggers
At $WORK, we have a case where we have implemented an event trigger to prevent customers from...
6 months ago
At $WORK, we have a case where we have implemented an event trigger to prevent customers from dropping an extension. As this extension is part of contrib and normally installed by users, we can’t prevent them from dropping it normally. However, event triggers can only be created...
Home on Erik...
NYC subway math
Apparently MTA (the company running the NYC subway) has a real-time API. My fascination for the...
over a year ago
Apparently MTA (the company running the NYC subway) has a real-time API. My fascination for the subway takes autistic proportions and so obviously I had to analyze some of the data. The documentation is somewhat terrible, but here's some relevant code for how to use the API:
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...
Willem's Blog
Multi-Window support in your iPad app
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI...
over a year ago
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI concepts enabling different use cases for your app.
Opsbros
The Bindicator
So I made this project for my dad for Fathers Day a couple of years ago, and thought i'd share it....
over a year ago
So I made this project for my dad for Fathers Day a couple of years ago, and thought i'd share it. The one shown is the Rev-1 design which is far from perfect, in fact it has several major issues I will discuss below, however it definitely works,
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...
Electronics etc…
Cable Length Measurement with an HP 8007B Pulse Generator
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',...
Notes on software...
Unit testing C code with gtest
This post covers building and testing a minimal, but still useful, C
project. We'll use...
over a year ago
This post covers building and testing a minimal, but still useful, C
project. We'll use Google's
gtest and
CMake for testing C code. This will serve as a
foundation for some upcoming posts/projects on programming Linux,
userland networking and interpreters.
test/CMakeLists.txt...
Willem's Blog
Working Offline First
Dive into a digital blast from the past and learn how a 15-year-old ThinkPad X200 can revolutionise...
a year ago
Dive into a digital blast from the past and learn how a 15-year-old ThinkPad X200 can revolutionise your workflow – join my cloud-free adventure today!
./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...
noahbuscher.com
Radio Install in a Porsche Boxster
The 987.2 Porsche Boxster is one of the best values in the used sports car market today. There is so...
a year ago
The 987.2 Porsche Boxster is one of the best values in the used sports car market today. There is so much to love about the vehicle, but the OEM headunit is not one of them. It's very dated, clunky, and doesn't support CarPlay (!), so one of the first things I did after picking...
anderegg.ca
Anzu Castle Gracula
Turns out you can release a QBasic game on Steam if it’s packaged correctly. Beside being a nerdy...
2 months ago
Turns out you can release a QBasic game on Steam if it’s packaged correctly. Beside being a nerdy oddity, this game is extremely well made and quite fun! Lots of Castlevania II vibes going on here. Check out Anzu Castle Gracula on Steam, or give it a shot on Itch.io.
Posts on Made of...
Some opinionated thoughts on SQL databases
People who work with me tend to realize that I have Opinions about databases, and SQL databases in...
over a year ago
People who work with me tend to realize that I have Opinions about databases, and SQL databases in particular. Last week, I wrote about a Postgres debugging story and tweeted about AWS’ policy ban on internal use of SQL databases, and had occasion to discuss and debate some of...
Home on Erik...
There is no magic trick
(Warning: super speculative, feel free to ignore)
As Yogi Berra said, “It's tough to make...
over a year ago
(Warning: super speculative, feel free to ignore)
As Yogi Berra said, “It's tough to make predictions, especially about the future”. Unfortunately predicting is hard, and unsurprisingly people look for the Magic Trick™ that can resolve all the uncertainty.
Good Enough
Issue 0: Collector's Item
1. Oh, hello.
We didn’t see you there. How are you doing?
You’ve somehow ended up with a collector’s...
over a year ago
1. Oh, hello.
We didn’t see you there. How are you doing?
You’ve somehow ended up with a collector’s item in your hands: the very first Good Enough Newsletter. This is the beginning of what we (Barry Hess & Shawn Liu) hope to be a years-long series of communiqués with our rabid...
Good Enough
Cool Songs Don’t Die
Earlier this week, I watched the pilot episode of Alias. Yes, that Alias – the one that began airing...
a year ago
Earlier this week, I watched the pilot episode of Alias. Yes, that Alias – the one that began airing 22 years ago and ran for 5 seasons and was a pretty big hit and launched the careers of two bonafide movie stars and featured a cast of very well known supporting actors. So yeah,...
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...
Arduino Blog
Discover #Virgil: history comes to life with Arduino
We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino...
3 months ago
We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino technology with a passion for history, creating a groundbreaking interactive experience for museums. Using Arduino’s versatile and scalable ecosystem, #Virgil operates completely...
Computer Ads from...
Vote for the Topic of the February 2024 Plus Post
If you are a paid subscriber, voting is open for one week
11 months ago
If you are a paid subscriber, voting is open for one week
Arduino Blog
This small device enables users to feel braille through haptics
For the visually impaired community, most of their interactions on mobile phones are confined to...
8 months ago
For the visually impaired community, most of their interactions on mobile phones are confined to text-to-speech (TTS) interfaces that read portions of the screen aloud. Dynamic braille displays also exist as a tactile means of communication, but their prices can get close to...
Matt Blewitt
Thoughts on User Safety
We need to move beyond mere security and towards safety for our customers and our users. This is how...
over a year ago
We need to move beyond mere security and towards safety for our customers and our users. This is how we can do that.
Avestura's Blog
What is the type of Type?
Should type of `Type` be also `Type`? Or is there an alternative?
over a year ago
Should type of `Type` be also `Type`? Or is there an alternative?
Jonas Hietala
November Theme: Art Game
Back over at The Experimental Gameplay Project a new theme has come up. My last three themes haven’t...
over a year ago
Back over at The Experimental Gameplay Project a new theme has come up. My last three themes haven’t been “my” themes: I’ve been following their lead and their themes and this month is no exception. This months’ apparently a big theme - Art. It’s even a collaboration with a big...
Willem's Blog
Improve your sleep by blocking light
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's...
over a year ago
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's quality. Read along for my findings!
Vitalik Buterin's...
Should there be demand-based recurring fees on ENS domains?
over a year ago
Home on Erik...
I'm featured in Mashable
This article from today in Mashable describes some of the fun stuff I get to work with:
Erik...
over a year ago
This article from today in Mashable describes some of the fun stuff I get to work with:
Erik Bernhardsson is technical lead at Spotify, where he helped to build a music recommendation system based on large-scale machine learning algorithms, mainly matrix factorization of big...
Simply Explained
Tuya IR Hub: control Daikin AC (Home Assistant + ESPHome)
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to...
over a year ago
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to finally make my YTF IR Hub useable. Here's how I flashed ESPHome onto it and how I configured it for my Daikin AC and Home Assistant.
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...
Neil Madden
Why the OAuth mTLS spec is more interesting than you might think
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the...
over a year ago
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the episode with Colm MacCárthaigh about a bunch of topics around TLS. It’s a great episode that touches a lot of subjects I’m interested in, so go ahead and listen to it if you...
./techtipsy
LattePanda V1 - my experience with a Raspberry Pi alternative
As with many homelab experiments around 2022/2023, it all started with Raspberry Pi-s
being either...
a year ago
As with many homelab experiments around 2022/2023, it all started with Raspberry Pi-s
being either out of stock or absurdly overpriced.
I once noticed a listing for a LattePanda V1 on a local auction site.
The price was reasonable at 45 EUR, and after I looked at the...
Neil Madden
On PBKDF2 iterations
There has been a lot of discussion recently around the LastPass breach, especially with regards to...
over a year ago
There has been a lot of discussion recently around the LastPass breach, especially with regards to the number of PBKDF2 iterations applied to the master password to derive the vault encryption key. Other people have already dissected this particular breach, but I want to more...
Vitalik Buterin's...
Some ways to use ZK-SNARKs for privacy
over a year ago
Jonas Hietala
We can build things!
Finally we have some sort of progress!
We can now build rooms and place and remove objects!
Yay!!...
over a year ago
Finally we have some sort of progress!
We can now build rooms and place and remove objects!
Yay!! But we still haven’t even begun with the game logic, resource management, the actual mining mechanic, multiple levels, actual tasks for our workers. But it’s something.
Willem's Blog
MUSE in Carré
MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying...
over a year ago
MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying experience - read about my experience!
Lighthouse Blog
Rules improvement: filter based on content
a month ago
Jonas Hietala
Bitcoin's security isn't binary
I’d like to address a misconception that’s at the core in many Bitcoin discussions lately: Bitcoin’s...
over a year ago
I’d like to address a misconception that’s at the core in many Bitcoin discussions lately: Bitcoin’s security isn’t binary. In fact security in general isn’t black and white. It’s a trade-off being secure enough for your threat model vs the cost and feasibility of your...
Applied Cartography
Notes from May
Lots of writing this month:
Why you should use Rails
A reminder that things take time
How...
7 months ago
Lots of writing this month:
Why you should use Rails
A reminder that things take time
How shadcn/ui's previews work
Why I hate that 1.01% meme
A lovely term, 'grace note'
Au revoir, invoke!
A quick check-in on 11ty
A rant/snippet for auth.js
The first edition of what will be a...
Louwrentius
Linux: script that creates table of network interface properties
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an...
over a year ago
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an existing linux command for this but I couldn't find it so I quickly wrote my
own script (download).
This is the output:
The only requirement for this script is that you have...
Arduino Blog
Vintage rotary phone becomes stylish kitchen timer
It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three...
7 months ago
It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three minutes, knead the dough for 15 minutes, bake for 30 minutes, and so on. A timer is a necessity for cooking and baking, but there is no reason you need to use your phone or a...
Arduino Blog
Build Button Clash in minutes: a new fun game with Plug and Make Kit
The Arduino Plug and Make Kit is all about turning creative sparks into reality in mere minutes....
a month ago
The Arduino Plug and Make Kit is all about turning creative sparks into reality in mere minutes. With its intuitive, snap-together design, even the wildest ideas become achievable – fast, fun, and frustration-free. That’s exactly what Julián Caro Linares, Arduino’s Product...
Jonas Hietala
10 Games in 10 Languages
For school we have this programming course for Java. It isn’t anything special really and it would...
over a year ago
For school we have this programming course for Java. It isn’t anything special really and it would be really boring if I don’t like to program, it almost is anyway, if it weren’t for the fact that we’re to create a game! Just any game will do and we’re in a group of two and we...
Willem's Blog
Climbing Mount Etna
Climbing Mount Etna, an active volcano on Sicily Italy.
over a year ago
Climbing Mount Etna, an active volcano on Sicily Italy.
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.
Jonas Hietala
My book 'Why Cryptocurrencies?' is done
My first commit on my book Why Cryptocurrencies? is from Dec 19, 2018, and now about 17 months later...
over a year ago
My first commit on my book Why Cryptocurrencies? is from Dec 19, 2018, and now about 17 months later and 1006 more commits I’m finally done!
Well, I’m done with the online version at least. I still plan to create an e-book, a PDF and a paperback and who knows how long that will...
Jorge Arango
Humanities Crash Course: Week 3
I’m undertaking a year-long crash course in the humanities. These are my notes for week 3.
Following...
3 days ago
I’m undertaking a year-long crash course in the humanities. These are my notes for week 3.
Following Ted Gioia’s curriculum, this week I read the remainder of the Odyssey. On the audiovisual front, I watched a movie that made me think differently about the poem’s...
Lighthouse Blog
Browser extensions to add articles
3 weeks ago
Jonas Hietala
Finishing Stuff
I haven’t done much blogging or game programming in a while but instead I’ve finished some school...
over a year ago
I haven’t done much blogging or game programming in a while but instead I’ve finished some school stuff. We completed the assembly course labs, which were pretty fun actually, and I managed to finally complete the electronics course I’ve been holding off on for like forever… But...
Home on Erik...
Implicit data and collaborative filtering
A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right?...
over a year ago
A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right? People rate things 1-5 stars and then you have to predict missing ratings.
While there's no doubt that the Netflix Prize was successful, I think it created an illusion that all...
Willem's Blog
Minimalistic road bike with Gates carbon drive
For the past few months I have been riding the Schindelhauer Siegfried Road bike with the Gates CDX...
over a year ago
For the past few months I have been riding the Schindelhauer Siegfried Road bike with the Gates CDX Carbon Drive, read about this beautiful minimal bike in this post.
Willem's Blog
Giving AI Training
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent...
a year ago
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent AI training session that's reshaping professional landscapes.
Jonas Hietala
Zucchini Crabcakes
With a tiny bit more planning I made a dinner out the lessons 4 and 5 as the crabcakes were only...
over a year ago
With a tiny bit more planning I made a dinner out the lessons 4 and 5 as the crabcakes were only supposed to be an appetizer:
Crabcakes: Surprisingly delicious. Both me and Veronica gives them a 7.
Zucchini: While I thought they passed Veronica said “Zucchini is not my thing” and...
./techtipsy
How to take down production with a single Helm command
You’re Cletus Kubernetus: a software developer, and a proud Fedora Linux
user.1
You know Kubernetes,...
9 months ago
You’re Cletus Kubernetus: a software developer, and a proud Fedora Linux
user.1
You know Kubernetes, especially after the time you migrated some services to it.
Everything is calm.
Your pods are running. Your service is up. Business as usual.
You release some minor changes to...
Jonas Hietala
Getting the book into my hands
Around a month ago I placed an order for a reference copy of my upcoming book Why Cryptocurrencies?....
over a year ago
Around a month ago I placed an order for a reference copy of my upcoming book Why Cryptocurrencies?. I took the cheapest shipping option at IngramSpark, without tracking and, apparently, without customs declarations as it got stuck in customs for several weeks.
But it’s here...
Good Enough
Season 1, Issue 2: Just the Two of Us
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing...
over a year ago
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing anything. Take it away, fellas…
1. Still Positive
Did you know that once you acquire COVID-19 your PCR test can be positive for up to 90 days? Did you know that the at-home tests...
Electronics etc…
Zephyr Ravenna Control Board Replacement
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing...
8 months ago
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing Information
Two PCBs - Control Board & Switch Assembly
Switch of the Breaker!!!
Glass Canopy Removal
Duct Cover Removal
Swapping the Control...
Style over Substance
Shooting the Ligero 3D-printed Mamiya Press camera by MaxWanderlush
Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the...
over a year ago
Last year I started shooting my first 3D-printed camera, a Goodman Zone. It was soon followed by the panoramic pinhole Goodman Scura and the MPWide, a modified Fuji Instax Wide 300. The MPWide is a mod by the talented Mario, otherwise known as MaxWanderlush. He has been releasing...
Arduino Blog
DIY ECU controls Honda Insight’s Kubota diesel engine
The Honda Insight was the first hybrid car released in North America and Honda put serious effort...
7 months ago
The Honda Insight was the first hybrid car released in North America and Honda put serious effort into making it as efficient as was practical at the time. That meant aerodynamic streamlining, which is why the first-generation Insight had very distinct covers over the rear...
Vitalik Buterin's...
Moving beyond coin voting governance
over a year ago
Willem's Blog
Programming on Apple Watch
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard
over a year ago
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard
seangoedecke.com RSS...
How I got promoted to staff engineer twice
At the beginning of 2021, Zendesk promoted me to staff software engineer. At the end of 2021 I...
3 weeks ago
At the beginning of 2021, Zendesk promoted me to staff software engineer. At the end of 2021 I switched jobs from Zendesk to GitHub. In…
axio.ms
32-bit hat, with LEDs
Built in November 2015 (now-traditional multi-year writeup delay applied)
A hat,...
over a year ago
Built in November 2015 (now-traditional multi-year writeup delay applied)
A hat, bejewelled with 38 RGB LEDs
Is this thing on..? It’s been a while since I’ve written one of these.
So, the hat. It’s been on the writeup pile for almost 6 years, nagging away. Finally...
Simply Explained
Shelly 2.5: Flash ESPHome Over The Air!
It's no secret that I'm a fan of Shelly products to automate various devices in my house. They're...
over a year ago
It's no secret that I'm a fan of Shelly products to automate various devices in my house. They're well built, tiny and rock solid, and best of all: compatible with ESPHome.I flashed ESPHome onto all my Shelly 1's, but for some reason, I have issues with my Shelly 2.5 devices......
Abort Retry Fail
The History of Red Hat
The Billion Dollar Open Source Company
a year ago
The Billion Dollar Open Source Company
Simply Explained
Why I don't take sponsorships
Last year I made that video in response to a sponsorship offer that I got from various VPN...
over a year ago
Last year I made that video in response to a sponsorship offer that I got from various VPN providers. They all told me the same thing: our service is the best way to protect your privacy, and we were hoping you could convey this message in one of your videos.So I decided to do...
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 