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.
Birchtree
My lil' Ghostty terminal config
I wrote about Ghosty last week, and since then I've played around with it enough to know it's my new...
6 days ago
I wrote about Ghosty last week, and since then I've played around with it enough to know it's my new terminal emulator of choice. For me the killer feature is how fast it is, putting the most popular apps to shame (Apple Terminal and iTerm, specifically)
Jonas Hietala
Before the Games: The Site
I’ve got some things I want to do before I start with my next game and they’re all about improving...
over a year ago
I’ve got some things I want to do before I start with my next game and they’re all about improving the site. The last week or so has been extremely productive with me throwing out a lot of wasted code, speeding up the site and adding/removing features and I want to continue with...
Posts on Made of...
6.170, CVS, and SVN
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but...
over a year ago
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but one of the most egregious, in my opinion, is that they force you to use CVS for your version control. Problem sets are distributed by the TAs importing them into your repository, and...
./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...
Ian's Blog
Hardware-Protected Apple Distribution Certificates Using a YubiKey
iOS and macOS developers will be familiar with the dreaded distribution certificate, a codesigning...
a year ago
iOS and macOS developers will be familiar with the dreaded distribution certificate, a codesigning certificate issued to you by Apple for signing your release artifacts before you distribute them.
Protecting that signing key is important, as Apple must blindly trust any binaries...
Jonas Hietala
Slackware installation notes
It seems like it’s been a yearly recurrence reinstalling slackware from scratch. This time it...
over a year ago
It seems like it’s been a yearly recurrence reinstalling slackware from scratch. This time it happened during my vacation when I was mucking around with trying to compile erlang with wxWidgets support and somehow a make clean started to remove / and I only noticed it too late…...
Home on Erik...
My favorite management failures
For most people straight out of school, work life is a bit of a culture shock. For me it was an...
over a year ago
For most people straight out of school, work life is a bit of a culture shock. For me it was an awesome experience, but a lot of the constraints were different and I had to learn to optimize for different things.
Arduino Blog
See how this homemade spectrometer analyzes substances with an Arduino Mega
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic...
2 weeks ago
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic spectrum that can give valuable information about their chemical or physical compositions. Traditional setups use a single lamp to emit white light before it is split apart into a...
Home on Erik...
I believe in the 10x engineer, but...
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be...
over a year ago
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be a 10x engineer if they do nothing for 364 days then convinces the team to change programming language to a 2x more productive language.
computers are bad
2025-01-05 pairs not taken
So we all know about twisted-pair ethernet, huh? I get a little frustrated with
a lot of histories...
4 days ago
So we all know about twisted-pair ethernet, huh? I get a little frustrated with
a lot of histories of the topic, like the recent neil breen^w^wserial port
video, because they often fail to
address some obvious questions about the origin of twisted-pair network
cabling. Well, I...
Willem's Blog
Cyber security: 5 easy tips to protect your server against hackers
These 5 practical cyber security measures will improve the safety of server, website and data.
over a year ago
These 5 practical cyber security measures will improve the safety of server, website and data.
Notes on software...
Is it worth writing about?
You acquire a skill or experience through time and effort,
then downplay the impact of writing and...
over a year ago
You acquire a skill or experience through time and effort,
then downplay the impact of writing and sharing the learning
process.
Professionals seem naturally to imagine a high bar for what
is worth writing about.
I think that's misguided. This article is not criticism of folks...
Vitalik Buterin's...
Governance, Part 2: Plutocracy Is Still Bad
over a year ago
Simply Explained
Secure Home Assistant Access with Cloudflare and Ubiquiti Dream Machine
I've become increasingly reliant on Home Assistant to automate various tasks around the house. But...
over a year ago
I've become increasingly reliant on Home Assistant to automate various tasks around the house. But how do you safely expose your instance to the internet for remote access?You want to be able to log in from a remote location, but how to keep others out? This post will show how...
Louwrentius
Monitoring HP MSA P2000 G3 I/O latency with Nagios
At work we have a couple of HP MSA P2000 G3 SANs. These are entry-level SANs that still seem to have...
over a year ago
At work we have a couple of HP MSA P2000 G3 SANs. These are entry-level SANs that still seem to have almost all features you might want from a SAN, except for official SSD-support.
It seems that the new MSA 2040 adds support for SSDs and also provides 4 GB cache per controller...
Lighthouse Blog
How to manually add content to read it later
7 months ago
Applied Cartography
Weird test: internal link checking
I wrote last month about using weird tests. Here's another example: checking for broken internal...
8 months ago
I wrote last month about using weird tests. Here's another example: checking for broken internal links in our upcoming docsite redesign!
const extractInternalLinks = (content: string): string[] => {
// Check for internal links only, in the form of [text](/path).
const...
Avestura's Blog
Creating a Git commit: The Hard Way
Let's create a Git commit using Git's low-level (plumbing) commands
4 months ago
Let's create a Git commit using Git's low-level (plumbing) commands
Jonas Hietala
Sat-E
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme...
over a year ago
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme this time around was Alone and the game I came up with is about a lonely satellite in space, kinda like Wall-E.
Sat-E
Instructions
Collect junk and other items for you to buy...
Good Enough
TIL: Deploying a Sinatra app to Render.com
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me,...
a year ago
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me, so I figured I’d write down what worked in the end.
First, a Gemfile:
# Gemfile
source 'https://rubygems.org'
gem 'sinatra'
gem 'sinatra-contrib'
gem 'puma'
* I’m pretty sure...
Home on Erik...
MCMC for marketing data
The other day I was looking at marketing spend broken down by channel and wanted to compute some...
over a year ago
The other day I was looking at marketing spend broken down by channel and wanted to compute some simple uncertainty estimates. I have data like this:
<th> Total spend </th> <th> Transactions </th> Channel A <td> 2292.
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...
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
Vitalik Buterin's...
Some ways to use ZK-SNARKs for privacy
over a year ago
Matt Mullenweg
Kindness and Techcrunch Disrupt
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their...
2 months ago
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their awesome non-profit kindness.org. You can listen to it through Pocket Casts here: This is kind of funny because I’m obviously in the midst of the big battle with Silver Lake and WP...
watchTowr Labs
Palo Alto - Putting The Protecc In GlobalProtect (CVE-2024-3400)
Welcome to April 2024, again. We’re back, again.
Over the weekend, we were all greeted by...
8 months ago
Welcome to April 2024, again. We’re back, again.
Over the weekend, we were all greeted by now-familiar news—a nation-state was exploiting a “sophisticated” vulnerability for full compromise in yet another enterprise-grade SSLVPN device.
We’ve seen all the commentary around the...
Simply Explained
ESP-IDF: Storing AWS IoT certificates in the NVS partition (for OTA)
When using AWS IoT Core, most tutorials will tell you to include device certificates in your...
over a year ago
When using AWS IoT Core, most tutorials will tell you to include device certificates in your firmware. While that does work, it means you won't be able to run over-the-air updates.In this post, I'll show how to store AWS certificates in the NVS partition. This will make it...
Neil Madden
Regular JSON
For better or worse, depending on your perspective, JSON has become a dominant data format and shows...
a year ago
For better or worse, depending on your perspective, JSON has become a dominant data format and shows no signs of being replaced any time soon. There are good reasons for that: on the face of it, it provides a very simple format with just enough features to cover a lot of...
Old Vintage...
Teaching Apple Cyberdog 1.0 new tricks (featuring OpenDoc)
this cyberdog (image credit).
that cyberdog, though this is one of my favourite weirdo pinball...
a year ago
this cyberdog (image credit).
that cyberdog, though this is one of my favourite weirdo pinball machines.
that cyberdog.
our PowerBook Duo 2300 rehabilitated, guess what we're gonna look at?
Internet document?
Thus was the nucleus of Cyberdog (named for the famous New...
Louwrentius
Blu Ray is dead
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead....
over a year ago
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead. Honestly, who is still burning CD's or DVD's nowadays? (If you
are, why for Christ sake? I can't think of a single good reason) And at 10
euros ($100) for a single Blu Ray disk, you must...
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...
Notes on software...
Exploring a Postgres query plan
I learned this week that you can intercept and redirect Postgres query
execution. You can hook into...
a year ago
I learned this week that you can intercept and redirect Postgres query
execution. You can hook into the execution layer so you're given a
query plan and you get to decide what to do with it. What rows to
return, if any, and where they come from.
That's very interesting. So I...
Posts on Made of...
Wordpress tricks: Disabling editing shortcuts
One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t...
over a year ago
One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t edit text in anything that doesn’t have decent emacs keybindings.
Fortunately, on Linux, at least, GTK provides basic emacs keybindings if you add
gtk-key-theme-name = "Emacs" to...
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...
9 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...
Gwern.net Newsletter
February 2021 Gwern.net Newsletter
links on AI scaling, semaglutide, and ethicist ethics
over a year ago
links on AI scaling, semaglutide, and ethicist ethics
Willem's Blog
The day I killed my LAN
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
over a year ago
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
Notes on software...
How to get better at recursion
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For...
over a year ago
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For a few years after college I spent a lot of free time doing
projects in Standard ML and Scheme. As a result I got really
comfortable doing recursion. The two big reasons for this...
watchTowr Labs
Check Point - Wrong Check Point (CVE-2024-24919)
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and...
7 months ago
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and laying bare a recent in-the-wild exploited bug. This time, it is Check Point who is the focus of our penetrative gaze.
Check Point, for those unaware, is the vendor responsible for...
Arduino Blog
This DIY guitar transmitter sends digital audio to the amp
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer....
5 months ago
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer. But that cable can become tangled or get in the way, which is a problem for some of the more animated musicians out there. Wireless transmitters exist for them to express themselves...
Jonas Hietala
Rewriting my blog in Rust for fun and profit
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think...
over a year ago
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think I used Jekyll and also more dynamic pages with Mojolicious in Perl and Kohana in PHP, but I can’t be completely sure as the git history doesn’t go back that far.
But all good...
Matt Mullenweg
Everyone’s An Owner
Last Friday we said goodbye to 159 colleagues as part of our alignment offer. It was a tough day,...
2 months ago
Last Friday we said goodbye to 159 colleagues as part of our alignment offer. It was a tough day, there are a lot of close relationships within Automattic, and goodbyes are always hard. On Monday, I got to be Oprah for a few minutes. We had scheduled a town hall for leaders...
lcamtuf’s thing
Lies, damned lies, and photodiodes
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast...
a month ago
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast or infuriatingly slow.
./techtipsy
The minimum viable fan control script
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as...
over a year ago
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as writing crappy
solutions to make up for
deficiencies on the hardware level. After years of dumb experiments I’ve seen
how little you can get away with in cooling and how to run your...
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.
Jonas Hietala
Bitcoin Cash needs a Specification
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a...
over a year ago
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a bunch of heated debates between the different Bitcoin Cash developer teams. Something that stood out from all the noise was problems with communications and a lack of specification...
Arduino Blog
Machine-to-machine communication is easier than ever: Opta now supports OPC UA
OPC Unified Architecture – OPC UA in short – is a cross-platform, open-source machine-to-machine...
2 months ago
OPC Unified Architecture – OPC UA in short – is a cross-platform, open-source machine-to-machine communication protocol for industrial automation. It was developed by the Open Platform Communications (OPC) Foundation and is defined in detail in the IEC 62541 standard. With the...
Jonas Hietala
fish_update_completions in Slackware 14.1
I’ve been trying out fish shell lately. A cool feature with fish is that it can automatically...
over a year ago
I’ve been trying out fish shell lately. A cool feature with fish is that it can automatically generate completions by parsing the installed man pages by running fish_update_completions.
Unfortunately this is what I got:
Traceback (most recent call last):
File...
Arduino Blog
Using Arduino UNO to sync a visual neuroscience lab
Common research methods to study the visual system in the laboratory include recording and...
2 months ago
Common research methods to study the visual system in the laboratory include recording and monitoring neural activity in the presence of sensory stimuli, to help scientists study how neurons encode and respond, for example, to specific visual inputs. One of the biggest technical...
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
Home on Erik...
Why organizations fail
One of my favorite business hobbies is to reduce some nasty decision down to its absolute core...
over a year ago
One of my favorite business hobbies is to reduce some nasty decision down to its absolute core objective, decide the most basic strategy, and then add more and more modifications as you have to confront the complexity of reality (yes I have very lame hobbies thanks I know).
./techtipsy
ThinkPad as a server: third time's the charm
This is a follow-up to my two previous attempts on this topic:
Can a laptop from 2012 be a viable...
2 months ago
This is a follow-up to my two previous attempts on this topic:
Can a laptop from 2012 be a viable home server?
ThinkPad as a server: the follow-up
Since then, I’ve had quite a few changes to my home server setup:
I put my home server stuff on an IKEA pegboard
I tried the...
Applied Cartography
You should use Helpscout
Was digging through old issues of the personal site and found this draft snippet:
I was evaluating...
10 months ago
Was digging through old issues of the personal site and found this draft snippet:
I was evaluating HelpScout as a potential first step in a series of many, many steps to onboard a dedicated support engineer for Buttondown, and it turns out that the process of adding custom...
./techtipsy
Running my ThinkPad T430 with an eGPU in 2024
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I...
5 months ago
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I wasn’t considering remaking this setup with everything I’ve learned 6 years later.
Oops.
I got access to an allegedly-faulty AMD Radeon RX 480 and an NVIDIA GTX 1650 for free...
Vitalik Buterin's...
What do I think about Community Notes?
a year ago
Electronics etc…
Fake Parallel Printer - A Parallel Port Traffic Capturing Tool
Introduction
What Is Out There?
The Parallel Printer Port
Fake Printer Top Level Design Choices
Fake...
a year ago
Introduction
What Is Out There?
The Parallel Printer Port
Fake Printer Top Level Design Choices
Fake Printer HW Details
PCB Revision 1
PCB Revision 2
Firmware
Building a Fake Printer Tool Yourself
Programming the Raspberry Pico
Fake Printer as a USB Serial Device on your...
Ken Shirriff's blog
The Pentium as a Navajo weaving
Hurrying through the National Gallery of Art five minutes before closing, I passed a Navajo weaving...
4 months ago
Hurrying through the National Gallery of Art five minutes before closing, I passed a Navajo weaving with a complex abstract
pattern.
Suddenly, I realized the pattern was strangely familiar, so I stopped and looked closely.
The design turned out to be an image of Intel's Pentium...
somenice
Matter as a Smart home standard
Matter is the name of the smart home standard that promises to bridge IOT devices and different home...
9 months ago
Matter is the name of the smart home standard that promises to bridge IOT devices and different home eco-systems. Amazon Alexa, Google Home, Apple Homekit, Samsung SmartThings, etc. To prevent 6+ flavours of smart lightbulbs working with 6+ different apps, a standard needed to be...
Jonas Hietala
2024 in review
It’s time for my 15th yearly review.
Nerdy things I enjoyed
I read a lot of fantasy books this...
4 days ago
It’s time for my 15th yearly review.
Nerdy things I enjoyed
I read a lot of fantasy books this year!
My favorite new series were The Kingkiller Chronicle, Gentlemen Bastards series, and The Stormlight Archive.
If you’re curious about Sanderson’s books but a little apprehensive...
Notes on software...
Exploring PL/pgSQL: Strings, arrays, recursion, and parsing JSON
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a...
over a year ago
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a builtin imperative programming language called
PL/pgSQL. I used to think this language was scary because it has a bit
more adornment than your usual language does. But looking deeper,...
Jonas Hietala
IDA Summer of Code 2014: Summary
This is a wrap-up post of my entry to IDA Summer of Code this year.
Quick stats
65 merged...
over a year ago
This is a wrap-up post of my entry to IDA Summer of Code this year.
Quick stats
65 merged commits
6790 lines added
2822 lines deleted
36 pull requests, 34 merged
12 pull requests directly fixing issues
rest either documentation or cleanup
1 RFC submitted...
Engineers Need Art
Building Quarter-Cab - Phase I
Lets build a simple virtual pinball controller to bring more immersion to your game.
8 months ago
Lets build a simple virtual pinball controller to bring more immersion to your game.
Louwrentius
Achieving 220 MB/s network file transfers using Linux Bonding
I wrote an article about the subject of getting beyond the limits of gigabit network file transfers....
over a year ago
I wrote an article about the subject of getting beyond the limits of gigabit network file transfers. My solution is to use multiple gigabit network cards and use Linux interface bonding to create virtual 2 gigabit network interfaces. The solution is to use mode 0 or round robin...
Louwrentius
Setting up a Squid proxy with Clamav anti-virus using c-icap
Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer...
over a year ago
Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer presenting a different set of challenges, requiring different skill sets and technology. So every layer will increase the time and effort to compromise your environment.
A...
Applied Cartography
Applied Cartography × People & Blogs
There are few pleasures greater than getting to be profiled for an interview series that you've been...
2 months ago
There are few pleasures greater than getting to be profiled for an interview series that you've been reading for months, and last week I got to do exactly that.
To browse Manu's site — not just this interview series — feels a bit like walking on a quiet beach in autumn: there's a...
Vitalik Buterin's...
Multidimensional gas pricing
8 months ago
Arduino Blog
On-body LEDs help this guitar rock harder
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that...
7 months ago
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that regard. No, you go to enjoy the show as a whole and that includes the visuals. The more a band can do to make the performance look exciting, the more you’re going to enjoy it. […]
The...
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!
Applied Cartography
Hypermodern Django
I've been on the hunt for a new way to dogfood Buttondown for the past month or so, and I've finally...
3 weeks ago
I've been on the hunt for a new way to dogfood Buttondown for the past month or so, and I've finally found it: Hypermodern Django.
At this point, all of my/our usages of Buttondown for Buttondown don't involve archives: we're using it headlessly, with RSS-to-email and APIs...
Jonas Hietala
Embedding youtube videos with Hakyll
A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using...
over a year ago
A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using Hakyll.
I don’t want to remember any special syntax for embedding, I don’t want to bother (remember?) to use something like {% youtube: <link> %} or whatever syntax we might find...
somenice
CBC Spark with Nora Young
Really upset to recently learn that Spark with Nora Young has been cancelled by the CBC, ending in...
7 months ago
Really upset to recently learn that Spark with Nora Young has been cancelled by the CBC, ending in June 2024. (Announcement episode) One of the most intelligent, progressive technology-in-society news shows in Canada or anywhere for that matter. Perhaps that it’s medium is radio...
Arduino Blog
Introducing Arduino cores with ZephyrOS (beta): take your embedded development to the next level
Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to...
a month ago
Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to release the first beta by the end of 2024. Today, we are excited to announce the first release of Arduino cores with ZephyrOS in beta! ZephyrOS is an open-source, real-time operating...
Home on Erik...
Conversion rates – you are (most likely) computing them wrong
How hard can it be to compute conversion rate? Take the total number of users that converted and...
over a year ago
How hard can it be to compute conversion rate? Take the total number of users that converted and divide them with the total number of users. Done. Except… it's a lot more complicated when you have any sort of significant time lag.
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom...
4 months ago
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
Lighthouse Blog
Updates September 9: Feed finding
4 months ago
Jonas Hietala
An update on my book 'Why Cryptocurrencies?'
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to...
over a year ago
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to finish the book.
Sorry that’s a bit of a lie, I’ve had a nice long vacation where I didn’t work on the book and I’m also on part-time parental leave. And believe me there’s not a...
Jonas Hietala
Up like a Sun, Down like a Pancake
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But...
over a year ago
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But it just don’t feel right to me. I’m not prepared, I feel a little bit stressed and I don’t really have faith in my game so I’m gonna step down this one as well. But it’s fine, Ludum...
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.
computers are bad
2024-09-26 the GE switched services network
We currently find ourselves in something of a series, working our way from
private lines to...
3 months ago
We currently find ourselves in something of a series, working our way from
private lines to large
private line systems like the four-wire private-line national warning
system.
Let's continue to build on the concept of the private line into large
corporate systems.
In principle, a...
Arduino Blog
Harness the power and connectivity of your Arduino UNO R4 WiFi with this IoT lamp
It can be tough to get started with building an Internet of Things (IoT) project from the ground-up,...
7 months ago
It can be tough to get started with building an Internet of Things (IoT) project from the ground-up, as getting connected, serving a webpage, and managing other devices can all be a challenge to a beginner. This is why the YouTuber known as “Mario’s Ideas” made an end-to-end...
Louwrentius
Recovering a lost partition using gpart
Even today people do not understand how important it is for the safety of your
data to make backups....
over a year ago
Even today people do not understand how important it is for the safety of your
data to make backups. I was asked to perform some data recovery on a hard
drive of an old computer, which still contained important documents and
photo's.
The first thing I did was to make a disk image...
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...
Jonas Hietala
Fun or Frustration? Ludum Dare 33
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule,...
over a year ago
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule, negotiated with my better half and everything is set up for epicness.
At first the idea was to make a game in rust, even tough I basically haven’t used it in almost a year, but when I...
Notes on software...
SQLite in Go, with and without cgo
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Jonas Hietala
The Experimental Games
It’s been nine months since I started doing Experimental Games and I think it’s time to evaluate and...
over a year ago
It’s been nine months since I started doing Experimental Games and I think it’s time to evaluate and maybe go in a new direction.
At first I had been stuck for ages with my never-ending projects and I had literally nothing to show for all my coding. Well now things have changed a...
Jonas Hietala
The games that make me who I am
I read an article the other day where he met someone who didn’t read fiction:
He suggested that...
over a year ago
I read an article the other day where he met someone who didn’t read fiction:
He suggested that fiction was a waste of his time — he read to learn, not for "mere" entertainment
I don’t agree with this view and neither did he:
Fiction allows you to be part of situations that are...
Applied Cartography
Talking to customers
You say that these numbers mean dial it down. I say they mean dial it up. You haven't gotten...
2 months ago
You say that these numbers mean dial it down. I say they mean dial it up. You haven't gotten through. There are people you haven't persuaded yet. These number mean dial it up. Otherwise you're like the French radical, watching the crowd run by and saying, "There go my people. I...
Arduino Blog
Arduino partners with RS/OKdo strategically to further expand the China Market
Arduino is excited to announce a strategic new partnership with RS/OKdo, a prominent leader in the...
2 months ago
Arduino is excited to announce a strategic new partnership with RS/OKdo, a prominent leader in the distribution of industrial and electronic equipment. This collaboration marks a significant step forward in bringing Arduino’s technology closer to China’s thriving maker community...
Notes on software...
Why (and how) to read books
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I...
over a year ago
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I never forced myself to build the
habit. Then three years ago I spent time around my brother and a
coworker who were avid readers. This "peer pressure" helped me get
started.
Since...
Willem's Blog
One year of cycling
GPS recording an entire year of bike rides using Garmin and Strava.
over a year ago
GPS recording an entire year of bike rides using Garmin and Strava.
Louwrentius
Corsair CM PSU-750HX seems ok
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair...
over a year ago
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair CMPSU-750HX. One of the reasons is that Corsair states
that this PSU can withstand 50 degree Celcius in continuous operation on full
load.
The package is very, clean, with all the...
Louwrentius
Linux Mac Mini - temperature monitoring with lm-sensors
This post is about getting temperature monitoring to work with a Mac Mini
running Linux.
Using...
over a year ago
This post is about getting temperature monitoring to work with a Mac Mini
running Linux.
Using Debian Lenny, out of the box, lm-sensors is not working. No sensors can
be found. This is how temperature monitoring and fan speed monitoring can be
made to work:
modprobe applesmc
If...
Engineers Need Art
Adam74
The Adam74 is a small ASCII-based terminal designed for the 8-bit hobbyist.
over a year ago
The Adam74 is a small ASCII-based terminal designed for the 8-bit hobbyist.
Christian Selig
A free, 3D printable Meta Quest 3 stand
People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I...
8 months ago
People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I designed in Fusion 360 with the goal of being visually appealing and compact as it stored the headset vertically so it wouldn’t take up too much space on your desk.
Turns out there were...
Louwrentius
My home network setup based on managed switches and VLANs
My home networking setup
I live in a two story apartment, with on the top floor my utilities closet...
over a year ago
My home networking setup
I live in a two story apartment, with on the top floor my utilities closet and my living room. The bottom floor contains a bedroom with all my servers and networking gear.
So this is my setup (click for a bigger version):
I like to run my own router but...
Jonas Hietala
Pushing toward Git
The time has come; it’s time for me to move my source out in the open for the first time.
Repository...
over a year ago
The time has come; it’s time for me to move my source out in the open for the first time.
Repository deleted, never became anything
Available on Github
It’s nothing special really, if you want take a look at the code and help me improve it.
axio.ms
Colourclock
Original concept circa 2008, revisited 2012, hardware designed Feb 2014, firmware designed...
over a year ago
Original concept circa 2008, revisited 2012, hardware designed Feb 2014, firmware designed April-August 2014, project completed August 2014, installed in spare room in 2016, written up in March 2018 (jeeez…)
Acrylic, LEDs, ARM Cortex-M0 microcontroller.
...
Posts on Made of...
Tracking down a memory leak in Ruby's EventMachine
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services....
over a year ago
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services. Over the last several months, we’ve known that one such service suffered from a gradual memory leak, that would cause its memory usage to gradually balloon from a normal ~50MB to...
Old Vintage...
The Fossil Wrist PDA becomes a tiny Gopher client (with Overbite Palm 0.3)
I don't always often wear watches. But when I do, I prefer Palm PDAs. Wired to my wrist.
all...
a year ago
I don't always often wear watches. But when I do, I prefer Palm PDAs. Wired to my wrist.
all about Palm devices on the Internet.
It turns out there's a reason for that, and we're going to patch the operating system so we can make the Fossil Wrist PDA into what may be the...
Good Enough
TIL: Blocking Password App Autocomplete on Form Fields
I wanted to disable password managers, particularly 1Password, from interacting with a username...
a year ago
I wanted to disable password managers, particularly 1Password, from interacting with a username field in Contact Me. It was pretty simple in the end:
<%= form.text_field :username, "data-lpignore": true, "data-1p-ignore": true %>
Reference: 1Password, Lastpass.
Jonas Hietala
The 4-Hour Chef: Scrambled Eggs
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to...
over a year ago
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to make changes and start doing new things. I got introduced to Josh Waitzkin’s excellent The Art of Learning and the meta skill of learning has since then fascinated me. So when I got...
Applied Cartography
My approach to GTD and PKM
One pernicious thing with writing about productivity and knowledge systems: you only change systems...
2 months ago
One pernicious thing with writing about productivity and knowledge systems: you only change systems that aren’t working, and you tend to write about things during times of change. So most writing about productivity systems stem from people whose systems have failed them.
It is...
Jonas Hietala
Evolution of RTS games
Introduction
This is an essay for the course Game Design and I’m going to give you a ride through...
over a year ago
Introduction
This is an essay for the course Game Design and I’m going to give you a ride through the evolution of RTS game genre. I like RTS games and I’ve played them for as long as I can remember, from the classic Red Alert and Age of Empires to the newer Supreme Commander and...
Arduino Blog
This Flip-Pelt wearable concept enables ultra-fast thermal feedback in VR
Wouldn’t it be great if, while playing a virtual reality game, you could feel the heat of a fire on...
2 months ago
Wouldn’t it be great if, while playing a virtual reality game, you could feel the heat of a fire on your arm? Or the cold of chilly water? Engineers around the world have been trying to make that happen, but there is a big problem: temperature changes are slow. The immersive...
Computer Ads from...
VenturCom's VENIX
Mixing REAL Time With REAL UNIX Is Not Magic...It Is Technology.
10 months ago
Mixing REAL Time With REAL UNIX Is Not Magic...It Is Technology.
Matt Mullenweg
I Voted!
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a...
2 months ago
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a last-minute flight to Houston and this morning walked over to Congregation Emanu El and voted. It is our most sacred duty as a citizen. I encourage every American to vote.
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...
9 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...
GitButler
GitButler for Windows
The GitButler client is now available natively on Windows.
9 months ago
The GitButler client is now available natively on Windows.
Matt Mullenweg
Michael Palmisano on Collier
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on...
2 months ago
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on YouTube, and one of my favorite genres of videos is genius musicians breaking down the incredible musical stuff Jacob is doing. (He even has his own instrument now.) This reaction...
Louwrentius
'Zabbix Security: client-server communication seems insecure'
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring...
over a year ago
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring hosts, Zabbix provides an agent that can be
installed on the hosts that must be monitored.
Based on the supplied documentation and some remarks on the internets,
the 'security' of...
Vitalik Buterin's...
From prediction markets to info finance
2 months ago
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...
4 days 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...
Computer Ads from...
NCR PC4i
Growing with your needs
2 weeks ago
Louwrentius
'Tip of the day: Scrolling in GNU screen'
Just the answer:
By default, on Debian, the scroll back buffer is about 1K lines. This can...
over a year ago
Just the answer:
By default, on Debian, the scroll back buffer is about 1K lines. This can be
changed in the .screenrc file in your home directory. The following example
sets the scroll back buffer to 5K lines.
defscrollback 5000
Set the scroll back buffer on the fly with:
First...
Jonas Hietala
Let's build a VORON: Noise
The build is going well and the printer is printing tons of random stuff and I’m generally in awe of...
10 months ago
The build is going well and the printer is printing tons of random stuff and I’m generally in awe of how cool the printer is.
But there’s one thing that sucks: it’s damn loud.
I knew that it wouldn’t be silent, but I wasn’t prepared for this kind of noise.
Silent controller...
./techtipsy
How I treat my urge to hoard data
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized...
over a year ago
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized that the pursuit to hoard all the things will just keep
on consuming more and more of my time and money. Storage is cheap up until to a
point, once you find yourself tracking hard...
Arduino Blog
Arduino IDE 2.3.3: discover new support for shared spaces and more!
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This...
3 months ago
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This new release is packed with improvements, including one feature we’re particularly proud of: support for shared spaces in Arduino Cloud. If you have a Cloud Business plan or School...
Notes on software...
First month on a database team
A little over a month ago, I joined EnterpriseDB on a
distributed Postgres product
(PGD). The...
10 months ago
A little over a month ago, I joined EnterpriseDB on a
distributed Postgres product
(PGD). The process of onboarding
myself has been pretty similar at each company in the last decade,
though I think I've gotten better at it. The process is of course
influenced by the team, and my...
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!
Louwrentius
Google DNS - what to think of it?
Google now provide an open DNS service. At first I was scared that they use
their service to get...
over a year ago
Google now provide an open DNS service. At first I was scared that they use
their service to get information about users.
However, their privacy statement tells us that no personal identifiable
information is stored for longer than 48 hours. The permanent logs do not
contain such...
Arduino Blog
Adding voice commands to a LEGO planetarium set with an Arduino Nano 33 IoT
From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning...
5 months ago
From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning and creative experiences, and for Electromaker’s Robin Mitchell, this was the LEGO planetarium set. With it, rotational input will cause the Earth and moon models to orbit around the...
Arduino Blog
What if robots could communicate with humans by emitting scents?
Almost all human-robot interaction (HRI) approaches today rely on three senses: hearing, sight, and...
5 months ago
Almost all human-robot interaction (HRI) approaches today rely on three senses: hearing, sight, and touch. Your robot vacuum might beep at you, or play recorded or synthesized speech. An LED on its enclosure might blink to red to signify a problem. And cutting-edge humanoid...
Vitalik Buterin's...
Why sharding is great: demystifying the technical properties
over a year ago
Good Enough
TIL: JavaScript Turbo Stream Requests
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests...
a year ago
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests were not resulting in turbo_stream rendering getting displayed on my page. I checked my logs to see if the render was happening. I looked for missing <%= tags. Debugged and...
Vitalik Buterin's...
Hard Forks, Soft Forks, Defaults and Coercion
over a year ago
Notes on software...
Transparency and communication on small teams
I saw a post on
dev.to
that talks about dysfunctional teams. This is a response that...
over a year ago
I saw a post on
dev.to
that talks about dysfunctional teams. This is a response that focuses
specifically on how to prevent burnout from overworking. This is aimed
at senior/lead engineers and engineering/project managers -- because
everyone in a leadership role is responsible...
Jonas Hietala
2015 Read Books
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good.
Fiction
A Song...
over a year ago
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good.
Fiction
A Song of Ice and Fire: A Dance with Dragons - George R.R. Martin
Reread.
A Knight of the Seven Kingdoms - Gearge R.R. Martin
The Skin Collector - Jeffery Deaver
Best Served Cold - Joe...
Jonas Hietala
Competition Feedback
The voting is over and I got a few ratings I want to comment on. You can view all ratings and...
over a year ago
The voting is over and I got a few ratings I want to comment on. You can view all ratings and comments here.
They’re all from 1 to 5.
Innovation: 3.75
Fun: 3.29
Theme: 3.17
Graphics: 2.54
Audio: 2.14
Humor: 2.54
that ugly.
Overall: 3.13
something playable out of this.
Community:...
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',...
Jonas Hietala
Weekend Tournaments
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament...
over a year ago
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament and on Sunday the local Netrunner community hosted a small summer kit tournament.
Game of Thrones
We’ve had a similar tournament once before when me and my girlfriend invited two of...
Home on Erik...
Modeling conversion rates using Weibull and gamma distributions
This is a blog post originally featured on the Better engineering blog. If you want to link to this...
over a year ago
This is a blog post originally featured on the Better engineering blog. If you want to link to this article or share it, please go to the original post URL! Separately, I'm sorry it's been so long with no posts on this blog.
Old Vintage...
The W65C265SXB gets a SXY case
Don't worry — my favourite single-board computer remains the 6502-based classic MOS/Commodore KIM-1,...
a year ago
Don't worry — my favourite single-board computer remains the 6502-based classic MOS/Commodore KIM-1, and I've got some future projects in the works. But these were recently on sale on Amazon and I couldn't resist getting a little sort-of RPi-sized SBC that runs the 16-bit 65816,...
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...
Applied Cartography
Why can't you just...?
Buried in a snarky thread about why Google Calendar doesn’t support calendar syncing is a long,...
7 months ago
Buried in a snarky thread about why Google Calendar doesn’t support calendar syncing is a long, detailed explanation of why shipping this sort of thing is hard:
Designing a consent experience for the enterprise admin and enterprise end user
Creating a special "read only" object...
Applied Cartography
Why your marketing site should be separate
In Notes on buttondown.com and How Buttondown uses HAProxy, I outlined the slightly kludgy way we...
3 months ago
In Notes on buttondown.com and How Buttondown uses HAProxy, I outlined the slightly kludgy way we serve buttondown.com both as a marketing site (public-facing, Next/Vercel, largely just content pushed by non-developers) and an author-facing app (behind a login, Django/Heroku/Vue)...
Abort Retry Fail
Housekeeping 20241208
Corrections, stats, and an update
a month ago
Corrections, stats, and an update
Matt Mullenweg
GPL Clarification
A quick followup on my prior conversation with Theo. During that chat, I talked briefly about a...
2 months ago
A quick followup on my prior conversation with Theo. During that chat, I talked briefly about a trademark infringer that was also distributing nulled plugins. I said “Not illegal. Legal under the GPL. But they weren’t changing the names. They were selling their customers Pro...
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...
Birchtree
Apple’s 2024 report card: iPhone 📱
This is the first in a series of posts reviewing Apple’s 2024 across their major product lines. I...
2 weeks ago
This is the first in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s iPhone report card here.
iPhone 16 Pro
I really, really liked the 15 Pro lineup, and I would
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...
Arduino Blog
Project Hub’s new featured pages are your gateway to inspiration!
Arduino’s Project Hub is more than just a platform; it’s a vibrant community where members share...
6 months ago
Arduino’s Project Hub is more than just a platform; it’s a vibrant community where members share their ideas and achievements, contributing to our knowledge base and inspiring everyone to make, learn, and try something new. With close to 5,400 projects, including tutorials,...
Notes on software...
Responsibility and ownership
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn...
over a year ago
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn over ownership, don't expect folks to
take responsibility. When you grant ownership and set expectations,
you'll be astounded what folks will accomplish without you.
I am astounded.
./techtipsy
How to make digital copies of your old video tapes
Introduction
This is a short overview of one way to take your old video tapes and make digital...
over a year ago
Introduction
This is a short overview of one way to take your old video tapes and make digital copies of their contents.
To get started, you will need the following:
old video tapes that you want to make copies of (VHS and its variants)
a device that can read analog AV signals...
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...
Computer Ads from...
Two Interviews with Ken Kaplan, One of the Creators of OS-9
Two interview from two different time periods
4 months ago
Two interview from two different time periods
Louwrentius
WFS - WAN Failover Script now available
Since I could not find a WAN failover script for Linux to my likening, I wrote
one myself. If you...
over a year ago
Since I could not find a WAN failover script for Linux to my likening, I wrote
one myself. If you have any use for it: I put it on a Google code project.
WFS tests the availability of your primary WAN connection and switches to your
secondary / backup connection when a failure is...
Notes on software...
Extending gosql to supporting LIMIT and OFFSET
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface...
over a year ago
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface for data stored in S3. But one missing
critical feature in gosql is LIMIT and OFFSET support. This post walks
through the few key changes to gosql to support LIMIT and OFFSET.
You...
Home on Erik...
Stuff that bothers me: “100x faster than Hadoop”
The simple way to get featured on big data blog these days seem to be
Build something that does 1...
over a year ago
The simple way to get featured on big data blog these days seem to be
Build something that does 1 thing super well but nothing else Benchmark it against Hadoop Publish stats showing that it's 100x faster than Hadoop $$$ Spark claims their 100x faster than Hadoop and there's a...
Louwrentius
The downside of 120 Mbit broadband internet
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of...
over a year ago
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of providging 120 Mbit downstream and 10 Mbit upstream, for an affordable price.
In a way this is mind boggling. Most people have 100 Mbit home networks that are not capable of handling...
Notes on software...
A database without dynamic memory allocation
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Vitalik Buterin's...
[Mirror] Cantor was Wrong: debunking the infinite set hierarchy
over a year ago
Vitalik Buterin's...
Exit games for EVM validiums: the return of Plasma
a year ago
./techtipsy
The optimization treadmill: why I keep changing my computing setup all the time
I have a bad habit of changing my computing setups all the time. I tend to see new gear, then I...
a year ago
I have a bad habit of changing my computing setups all the time. I tend to see new gear, then I get
some new ideas, and then I obsessively think about it for weeks and months until I just buy it.
And then the cycle repeats.
I’ve had time to think about why that keeps happening...
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.
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...
Ken Shirriff's blog
Two interesting XOR circuits inside the Intel 386 processor
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a...
a year ago
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching to a CMOS implementation.
I've been reverse-engineering parts of the 386 chip and came across two interesting and completely different
circuits...
./techtipsy
My attempt at archiving nfscars.net
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which...
over a year ago
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which later got “upgraded” to Windows 98 SE
after I managed to completely screw up the OS, a whopping 96MB of RAM and a hard drive that probably wasn’t much larger
than 1-3GB. It wasn’t...
Willem's Blog
Space travelling from El Teide
On Tenerife you'll find Teide, the world's second highest volcano with extra terestial views and a...
over a year ago
On Tenerife you'll find Teide, the world's second highest volcano with extra terestial views and a perfect altitude for stargazing.
Notes on software...
A write-ahead log is not a universal part of durability
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its...
6 months ago
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its long-term data structure durably
to disk before returning to a client. Granted, this is a bad idea! And
granted, a WAL is critical for durability by design in most
databases. But I...
Willem's Blog
Free from the iCloud: Escaping Apple Photos
Recently I freed myself from Apple Photos, using free software to manage my photo library. Read...
over a year ago
Recently I freed myself from Apple Photos, using free software to manage my photo library. Read along to find out what software I use and how to make it play nice with your devices.
Notes on software...
Confusion and disengagement in meetings
The quickest way to cut through confusion or disagreement among
otherwise amiable and honest folks...
over a year ago
The quickest way to cut through confusion or disagreement among
otherwise amiable and honest folks is to ask questions.
Ask early so you don't waste time. But it's not enough to just ask
clarifying questions because the answers won't always be clear.
Sounds like Human Interaction...
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
Netrunner Summer Tournament Linköping
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs...
over a year ago
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs with Old Hollywood and The Universe of Tomorrow so a lot of new things were tried. I heard a rumor that a full playset of both Aesop’s Pawnshop and Wyldside were available so I...
seangoedecke.com RSS...
How I ship projects at big tech companies
I have shipped a lot of different projects over the last ~10 years in tech. I often get tapped to...
2 months ago
I have shipped a lot of different projects over the last ~10 years in tech. I often get tapped to lead new ones when it’s important to get…
Home on Erik...
Language pitch
Here's a fun analysis that I did of the pitch (aka. frequency) of various languages. Certain...
over a year ago
Here's a fun analysis that I did of the pitch (aka. frequency) of various languages. Certain languages are simply pronounced with lower or higher pitch. Whether this is a feature of the language or more a cultural thing is a good question, but there are some substantial...
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...
Good Enough
How We Built Quack (Beta)
We recently launched Quack, a simple utility for you to share a beautifully rendered version of any...
a year ago
We recently launched Quack, a simple utility for you to share a beautifully rendered version of any Markdown text. This software is completely front-end based, and for me personally it was a bit of a challenging puzzle to implement. Thankfully we have genius hackers like Arun...
Opsbros
Artemis 1 Countdown
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it...
over a year ago
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it with serveral people, and I had been regularly posting updated DateandTime countdown links for the revised launch attempts. With the schedule chnages and scrubs that have happened...
Jonas Hietala
Microfeatures in my blog
xkcd: Nerd sniping
A while I ago I encountered a blog post called Microfeatures I Love in Blogs and...
6 months ago
xkcd: Nerd sniping
A while I ago I encountered a blog post called Microfeatures I Love in Blogs and Personal Websites, and together with the related Hacker News discussion I got nerd sniped.
(I spent more time than I care to admit implementing new and exciting microfeatures for...
somenice
Cake Hole Whistler Mountain
Often inviting. This terrain just off the Whistler peak road can be an enticing sun-swept run of...
a month ago
Often inviting. This terrain just off the Whistler peak road can be an enticing sun-swept run of untouched powder.Understanding that you need to come back up the same way you go down, can make you question if it’s really worth it.Know before you go. Cake Hole by Andrew...
Home on Erik...
3D
Andy Sloane decided to call my 2D visualization and raise it to 3D.
(Looks a little weird in the...
over a year ago
Andy Sloane decided to call my 2D visualization and raise it to 3D.
(Looks a little weird in the iframe but check out the link). It's based on a LDA model with 200 topics, so the artists tend to stick to clusters where each cluster is a topic.
Notes on software...
The case for comments in code
When I first started programming, especially when asked for code
samples, my comments lacked purpose...
over a year ago
When I first started programming, especially when asked for code
samples, my comments lacked purpose and would often duplicate in
English what the code clearly indicated. I knew that "commenting is
good" but as a beginner I had no further insight.
Over time with the help of books...
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...
6 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...
Lars Lofgren
The Billion-Dollar World of Parasite SEO: How to Cash In
Parasite SEO is when a third-party company partners with an established domain, then posts a bunch...
2 months ago
Parasite SEO is when a third-party company partners with an established domain, then posts a bunch of SEO content to make a bunch of money. Content often gets published in a subfolder or subdomain or the website. The goal is to leverage the domain’s trust with Google to get...
Home on Erik...
I'm looking for data engineers
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers...
over a year ago
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers at Better. You would be the first one to join and would work a lot directly with me.
Some fun things you could work on (these are all projects I'm working on right now):
Posts on Made of...
Indices point between elements
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a...
over a year ago
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this:
In this post, I want to persuade you to replace that image, or,...
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...
Good Enough
Cosmic Maelstrom
As Barry wrote in his recent blogpost, we're busy building prototypes here at Good Enough.
It's...
a year ago
As Barry wrote in his recent blogpost, we're busy building prototypes here at Good Enough.
It's weird to be in this situation. Most of the Good Enough team are used to working on just one software at a time, focusing on steadily improving it. But right now we're doing the...
Notes on software...
Windows
It has been six years since I last used Windows for any remotely
serious software development. I've...
over a year ago
It has been six years since I last used Windows for any remotely
serious software development. I've used Ubuntu, Arch, or FreeBSD
since. But eventually I spent so much time working around common
workplace tasks that I decided to put Windows 10 Pro on my work
laptop.
Windows...
./techtipsy
Tech rants: PC-s use way too much power in 2021
Welcome to 2021. We have:
supply chain issues
no reasonably priced GPU-s
consumer-grade CPU-s with...
over a year ago
Welcome to 2021. We have:
supply chain issues
no reasonably priced GPU-s
consumer-grade CPU-s with peak power consumption at 296W
GPU-s that consume 350-400W of power under normal use
At the same time, we have made great leaps in CPU/GPU architectures and chip manufacturing...
./techtipsy
What running out of SATA ports looks like
One day I stumbled upon a Craft Computing video
about his new server build, and on the parts list...
over a year ago
One day I stumbled upon a Craft Computing video
about his new server build, and on the parts list was a Sedna PCI Express 2x SATA adapter card:
There are different designs out there, including a 4x SATA card, which is bonkers.
Anyway, I thought that I might as well give this a...
Home on Erik...
Scala Data Pipelines for Music Recommendations
Chris Johnson‘s presentation from Data Day Texas:
over a year ago
Chris Johnson‘s presentation from Data Day Texas:
Willem's Blog
CAPTCHA Alternative
If you're looking for a user-friendly alternative for CAPTCHA's you should check this post out where...
over a year ago
If you're looking for a user-friendly alternative for CAPTCHA's you should check this post out where I outline how I protect web forms against malicious actors and spammers.
Nabeel S. Qureshi
Advice That Actually Worked For Me
My contribution to the 'productivity advice' genre.
over a year ago
My contribution to the 'productivity advice' genre.
Gwern.net Newsletter
Jan 2021 Gwern.net Newsletter
January 2021 gwern.net newsletter with links on AI scaling up and down.
over a year ago
January 2021 gwern.net newsletter with links on AI scaling up and down.
lcamtuf’s thing
A 15-minute intro to resin casting
At one point in my life, I penned an epic, 110-page opus on hobby manufacturing.
2 weeks ago
At one point in my life, I penned an epic, 110-page opus on hobby manufacturing.
Lighthouse Blog
Updates December 15: Rebranding to Lighthouse and complete redesign
a year ago
Electronics etc…
Installing Linux GPIB Drivers for the Agilent 82357B
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the...
a year ago
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the Agilent 82357B GPIB Driver on an Ubuntu Linux Distribution
References
Introduction
I’ve started to grow a collection of older test equipment from the eighties, the
nineties, and the...
Vitalik Buterin's...
Quadratic Payments: A Primer
over a year ago
lcamtuf’s thing
Against the hydraulic analogy
The most popular tool for teaching electronics makes the trade harder to learn.
a week ago
The most popular tool for teaching electronics makes the trade harder to learn.
anderegg.ca
The “Home Alone” / “NiGHTS into Dreams” connection
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one...
a month ago
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one of my favourites from the Saturn lineup, and it also had a free Christmas version.
In it, there’s a song I really love that plays on the level select screen called Gate of Your...
./techtipsy
The absolute state of Bluetooth audio in 2022
I have the Sony WH-1000XM3 headphones. They’re good for consuming content.
Audio calls with your...
over a year ago
I have the Sony WH-1000XM3 headphones. They’re good for consuming content.
Audio calls with your colleagues? Forget about it.
This is the setup I have to go with, and it has all to do with how Bluetooth
works. Your options with Bluetooth headsets are the following:
high quality...
Applied Cartography
Order, Tailwind, DRY
(Order in the CSS rule sense, not the metaphysical sense.)
The time has come to begin exfiltrating...
3 weeks ago
(Order in the CSS rule sense, not the metaphysical sense.)
The time has come to begin exfiltrating some higher-traffic, higher-leverage parts of Buttondown's admin UI away from the autogenerated Django admin and into some more bespoke components.
Take, for instance, this rather...
Simply Explained
Integrate Home Assistant with Apple Reminders
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos....
over a year ago
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos. This is trickier as it sounds, because Reminders has no API that can be accessed from Home Assistant. Here's how I worked around that problem with a script, input text helper and...
Willem's Blog
The best bike computer app: Cyclemeter
Collect advanced bike ride data using your smartphone connected to external Bluetooth sensors and a...
over a year ago
Collect advanced bike ride data using your smartphone connected to external Bluetooth sensors and a steer mounted display.
Louwrentius
Why I believe the new Mac Pro won't be a great machine for gaming
In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking...
over a year ago
In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking about buying a new Mac Pro for gaming.
I believe that gaming on the new Mac Pro will be a mediocre experience.
Driver support: as John mentioned himself, the video cards are...
Vitalik Buterin's...
Should Ethereum be okay with enshrining more things in the protocol?
a year ago
Home on Erik...
What is the right level of specialization? For data teams and anyone else.
This isn't as much of a blog post as an elaboration of a tweet I posted the other day:
I think this...
over a year ago
This isn't as much of a blog post as an elaboration of a tweet I posted the other day:
I think this specialization of data teams into 99 different roles (data scientist, data engineer, analytics engineer, ML engineer etc) is generally a bad thing driven by the fact that tools are...
Notes on software...
Make small changes and solve the problems you have
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that...
over a year ago
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that aren’t clearly associated with a known
problem. It’s even worse in that order.
These situations tend to happen when a problem remain unaddressed for
too long. These situations tend to...
Posts on Made of...
Reflections on software performance
At this point in my career, I’ve worked on at least three projects where performance was a defining...
over a year ago
At this point in my career, I’ve worked on at least three projects where performance was a defining characteristic: Livegrep, Taktician, and Sorbet (I discussed sorbet in particular last time, and livegrep in an earlier post). I’ve also done a lot of other performance work on the...
Applied Cartography
Why should a company?
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my...
9 months ago
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my first paying customer so I know it's not a fake product"; "I want to hit a thousand dollars in revenue so I know it's not just friends humoring me"; "I want to make $10K/mo or else I...
Home on Erik...
Learning from users faster using machine learning
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're...
over a year ago
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're running an e-commerce site (I kind of do) and you want to optimize the number of purchases.
Let's also say we try to learn as much as we can from users, both using A/B tests but also...
Willem's Blog
Limitations of sleep tracking using a wearable
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
over a year ago
Limitations of heart rate analyses during sleep, why you should reconsider tracking your sleep.
Arduino Blog
Use sound to trigger your camera’s flash with this DIY device
In the world of photography, the exposure triangle is immutable. To get a properly exposed photo...
2 months ago
In the world of photography, the exposure triangle is immutable. To get a properly exposed photo (not too bright or too dark), you need a balance of aperture size (how much light gets in), shutter speed (how long the light gets in), and ISO (sensitivity to light at the expense of...
seangoedecke.com RSS...
What kind of work I want
This article is to help recruiters, hiring managers and myself have a better idea of the kind of...
over a year ago
This article is to help recruiters, hiring managers and myself have a better idea of the kind of places I’d like to work. The short version…
Arduino Blog
5 ways to use Arduino with kids
One of the great things about making is that it really is for everyone — every budget, every skill...
7 months ago
One of the great things about making is that it really is for everyone — every budget, every skill level, and every age group. Children are one of the groups that can benefit the most from Arduino. Getting exposed to making and home automation from an early age can be enormously...
Willem's Blog
Impact of training
Join me on an intriguing journey as I explore the transformative impact of effective training and...
a year ago
Join me on an intriguing journey as I explore the transformative impact of effective training and data analysis on my performance in the Fietselfstedentocht 2023.
Notes on software...
Generating a REST API from a database
I recently published an alpha version of a code generation tool,
DBCore, that reads a...
over a year ago
I recently published an alpha version of a code generation tool,
DBCore, that reads a database
schema from PostgreSQL or MySQL and generates an entire Go API with
CRUD operations, pagination, filtering, and authentication.
But more than just generating code like
xo/xo or...
Jonas Hietala
The Arty Timeline
While working on Jonas IceCream Stand I took a screenshot every day and I thought they looked pretty...
over a year ago
While working on Jonas IceCream Stand I took a screenshot every day and I thought they looked pretty cool so here they are:
And now I’m off with New World Order and (for once) I’ve got a really really good idea!
Yazin Alirhayim
The Meem app: it sucks
If you’re a “digital only” bank like Meem, the app your customers use is all they see: it’s like a...
over a year ago
If you’re a “digital only” bank like Meem, the app your customers use is all they see: it’s like a virtual 🏦 branch.
That’s fitting, because you know what my impression of meem is as a user? When I open up their app, it feels like walking into a crowded butcher shop, with...
Birchtree
Apple’s 2024 report card: Apple Watch
This is the fourth in a series of posts reviewing Apple’s 2024 across their major product lines. I...
a week ago
This is the fourth in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s Apple Watch report card here.
Series 10
It’s always fun when we get a new Apple
Home on Erik...
When machine learning matters
I joined Spotify in 2008 to focus on machine learning and music recommendations. It's easy to...
over a year ago
I joined Spotify in 2008 to focus on machine learning and music recommendations. It's easy to forget, but Spotify's key differentiator back then was the low-latency playback. People would say that it felt like they had the music on their own hard drive.
csvbase blog
DuckDB isn't just fast
A whistlestop tour of the cool bits of DuckDB
7 months ago
A whistlestop tour of the cool bits of DuckDB
Jonas Hietala
Rising from the Dead, it's Ludum Dare
I’ve been a long time gone, been busy with school then having summer vacation and generally not...
over a year ago
I’ve been a long time gone, been busy with school then having summer vacation and generally not making games or blogging. But I have revived! I scrambled to push my new website live because today it’s Ludum Dare time! The theme is “Evolution” and it’s the 24th time for Ludum Dare...
Birchtree
I don’t care about bad or missing features that I don’t use
Sometimes I’ll talk about something I like online and people will express shock that I can use a...
a month ago
Sometimes I’ll talk about something I like online and people will express shock that I can use a product that has such a clear downside. I’ve gotten people ask how I can use Things since it doesn’t have shared task lists. More recently I
Opsbros
Tasmota Quad Switch Breakout
The Tasmota Quad Switch Breakout is designed to make connecting a custom quad light switch to a...
over a year ago
The Tasmota Quad Switch Breakout is designed to make connecting a custom quad light switch to a Wemos D1 mini running Tasmota super super easy.
Louwrentius
Compiling Ceph on the Raspberry Pi 3B+ (armhf) using Clang/LLVM
UPDATE 2019 / 2020
There are official ARM64 binaries of Ceph that you can run on a 64-bit version of...
over a year ago
UPDATE 2019 / 2020
There are official ARM64 binaries of Ceph that you can run on a 64-bit version of Ubuntu 18.04.
Important: I consider this page obsolete. I will keep it up for transparency's sake
Introduction
In this blog post I'll show you how to compile Ceph Luminous for...
Jonas Hietala
Poking at Emacs
I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty...
over a year ago
I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty confident and happy with it. For those who don’t know it’s basically a text editor, like notepad, but with a lot of keycommands which allows you to edit code (and text in general)...
Applied Cartography
Tailwind black magic: styling paragraphs within tables
The new version of the Buttondown docs site is all in on Keystatic, Markdoc, and Tailwind's...
9 months ago
The new version of the Buttondown docs site is all in on Keystatic, Markdoc, and Tailwind's typography plugin — which makes it really easy to author beautiful docs in plaintext.
We ran into one small issue, which is that the Markdoc renderer likes to place paragraph tags in table...
./techtipsy
The Fedora Linux starter pack: everything you need for a smooth experience
I like Fedora Linux.
It’s the Linux distro that stopped my habit of distro-hopping. Big
deal? Ooh,...
2 months ago
I like Fedora Linux.
It’s the Linux distro that stopped my habit of distro-hopping. Big
deal? Ooh, big deal!
It’s stable in day-to-day use, ships with up-to-date software, and the software selection is adequate out of the box.
It also ships with a fresh Linux kernel version1,...
Computer Ads from...
Sundial Systems' Relish
The Premier Workplace Shell Calendar, Phone Book, To Do List, and Program Runner, too
3 months ago
The Premier Workplace Shell Calendar, Phone Book, To Do List, and Program Runner, too
Jonas Hietala
(Fake) Bittman Chinese Chicken
Lesson 6! I went to Cervera and bought a holder to allow me to steam chicken.
I broke the recipe on...
over a year ago
Lesson 6! I went to Cervera and bought a holder to allow me to steam chicken.
I broke the recipe on multiple fronts: chicken wings instead of chicken breasts, mushroom soy instead of tamarin, roman salad instead of baby bok choi (where the heck do you find that…) and I even...
Home on Erik...
Nearest neighbor methods and vector models – part 1
This is a blog post rewritten from a presentation at NYC Machine Learning last week. It covers a...
over a year ago
This is a blog post rewritten from a presentation at NYC Machine Learning last week. It covers a library called Annoy that I have built that helps you do (approximate) nearest neighbor queries in high dimensional spaces.
Jonas Hietala
No game this month
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack...
over a year ago
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack inspiration and then it’s really hard to do something. Instead I’ve been thinking of something I could do that would make me wanna code like really bad again. I’m thinking of...
Jonas Hietala
Swelling with New Shiny Books
So I read the wonderful Design for Hackers and I managed to win some money for books from a course…...
over a year ago
So I read the wonderful Design for Hackers and I managed to win some money for books from a course… So I ran away and ordered some new books, and they just arrived today. Yay!
First off I ordered Introduction to Algorithms which is the de facto book about algorithms and it seemed...
Posts on Made of...
reptyr: Attach a running process to a new terminal
Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an...
over a year ago
Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an existing running program and attaching it to a new terminal. Started a long-running process over ssh, but have to leave and don’t want to interrupt it? Just start a screen, use...
Lighthouse Blog
Improvements and fixes: December 2024
a week ago
Willem's Blog
Building a product platform
Leverage platform capabilities to quickly launch new products, designing for reusability,...
over a year ago
Leverage platform capabilities to quickly launch new products, designing for reusability, flexibility and extensibility.
Jonas Hietala
Postmortem: Sat-E
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The...
over a year ago
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The Good
Motivation
I was really motivated for this dare and it showed in the game and outside it. It’s super hard to make a game in only 48 hours but this time it went pretty well. My...
Electronics etc…
The HP 423A and a Beginner’s Deep Dive into RF Crystal Detectors
MathJax.Hub.Config({
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tex2jax: {
inlineMath: [...
a year ago
MathJax.Hub.Config({
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tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Electronics etc…
HP 8656A Signal Generator Schematics
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the...
10 months ago
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the schematics of chapter 8 are all spread over 3 or 4 pages, which makes
them hard to follow.
I spent a good evening extracting the schematics pages, cutting-and-pasting
them together...
Jonas Hietala
Balls
Here’s my first ever experimental game! The theme was Addictive Gaming. My first thought was oh god...
over a year ago
Here’s my first ever experimental game! The theme was Addictive Gaming. My first thought was oh god I’ll be making another tetris clone but the end result turned out a bit different. I’m not sure it’s very addictive but it’s actually okay! =D
Balls is a game about… balls. Well...
Louwrentius
An ode to the 10,000 RPM Western Digital (Veloci)Raptor
Introduction
Back in 2004, I visited a now bankrupt Dutch computer store called MyCom1, located at...
over a year ago
Introduction
Back in 2004, I visited a now bankrupt Dutch computer store called MyCom1, located at the Kinkerstraat in Amsterdam. I was there to buy a Western Digital Raptor model WD740, with 74 GB of capacity, running at 10,000 RPM.
When I bought this drive, we were still in...
Arduino Blog
This smart spice box makes cooking a breeze
Many people shy away from cooking because they’re overwhelmed by all of the different steps and...
6 months ago
Many people shy away from cooking because they’re overwhelmed by all of the different steps and ingredients. Recipes are useful, but they aren’t very intuitive to those who are more comfortable with visual thinking. To help these people enjoy the cooking experience, Purdue...
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 3: pressure transducers
MathJax = {
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11 months ago
MathJax = {
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The Bendix Central Air...
Opsbros
Saibah Securitah
It's always okay to buy the domain for the meme!
over a year ago
It's always okay to buy the domain for the meme!
Good Enough
Why We Built Quack (Beta)
Today we're launching a tiny beta tool called Quack. It is a simple utility for you to share a...
a year ago
Today we're launching a tiny beta tool called Quack. It is a simple utility for you to share a beautifully rendered version of any markdown text. Type away in our simple editor. When you're done writing, click Share to grab the link for sending to others. There are no servers in...
Nabeel S. Qureshi
Reflections on Palantir
A retrospective of an eight-year stint.
2 months ago
A retrospective of an eight-year stint.
Style over Substance
Our favorite places to eat and drinks during our Portugal vacation
In the summer of 2023, we went on an amazing trip through Portugal. We’d already visited Lisbon on a...
7 months ago
In the summer of 2023, we went on an amazing trip through Portugal. We’d already visited Lisbon on a short city trip a few years earlier, and that experience was so good we knew we had to return. This time, we decided to take a full three weeks and see the sights. We were...
Louwrentius
Benchmarking storage with Fio and generating charts of the results
Introduction
Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of...
over a year ago
Introduction
Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of options to create a storage benchmark that would best reflect your needs. Fio allows you to assess if your storage solution is up to its task and how much headroom it has.
Fio outputs...
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......
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...
Louwrentius
I resurrected my Dutch movie review site from 2003
Introduction
Between 2003 and 2006, I ran a Dutch movie review site called moevie.nl.1
I built the...
over a year ago
Introduction
Between 2003 and 2006, I ran a Dutch movie review site called moevie.nl.1
I built the site and wrote the reviews. It never made any money. It cost me money to host, and it cost me a lot of time writing reviews, but I remember enjoying writing reviews about films I...
Electronics etc…
Symmetricom 58532A GPS Antenna Supply Voltage Mod
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A...
9 months ago
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A variant?
References
The Symmatricom 58532A
As part of a package deal, I got my hands on a Symmetricom 58532A L1
GPS antenna.
Microchip, which acquired Symmetricom in 2013, doesn’t...
Vitalik Buterin's...
Engineering Security Through Coordination Problems
over a year ago
Vitalik Buterin's...
Why we need wide adoption of social recovery wallets
over a year ago
Jonas Hietala
2022 in review
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice...
a year ago
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice to see that despite a tough year I’ve done some good things.
2022 Non-Geek Achievements
We got our third child!
This time we got a girl to complement our two boys, and I love them...
Home on Erik...
Lessons from content marketing myself (aka blogging) for five years
I started writing this blog in late 2012, partly because I felt like it would help me improve my...
over a year ago
I started writing this blog in late 2012, partly because I felt like it would help me improve my English and my writing skills, partly because I kept having a lot of random ideas in my head and I wanted to write them down somewhere.
Computer Ads from...
Flash Sale and a Slight Change to Subscriptions
Time for a little business
3 months ago
Time for a little business
Good Enough
Thoughts On Thoughts
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our...
a year ago
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our thoughts and what we believe about them.
Or perhaps we can think of this as an intervention. This post is the circle of friends gathered to help us stop hitting ourselves in the...
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian
I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
7 months ago
I use note-taking software every day. I use it for journaling, blogging, capturing ideas, researching technologies, managing my projects, and many other things. Writing is how I think through problems, and note-taking software makes all that thinking easy to search and...
Louwrentius
Installation of ZFS on Linux hangs on Debian Wheezy
This article is no longer relevant.
After a fresh net-install of Debian Wheezy, I was unable to...
over a year ago
This article is no longer relevant.
After a fresh net-install of Debian Wheezy, I was unable to compile the ZFS for Linux kernel module. I've installed apt-get install build-essential but that wasn't enough.
The apt-get install debian-zfs command would just hang.
I noticed a...
Jonas Hietala
Making a Game Again?
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my...
over a year ago
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my glasses-missing headaches and I’m going to Ikea and some other shops for, you guessed it, shopping! Sure it’s fun and sure I need to do these things but the only thing on my mind now is...
Opsbros
Nokia 5110 - Back from the dead. Part 1: Nostalgia
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and...
over a year ago
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and still-memed mobile phone. As it turns out, not only is it possible, but it's going to be a lot easier than I anticipated.
Posts on Made of...
Property-Based Testing Is Fuzzing
“Property-based testing” refers to the idea of writing statements that should be true of your code...
over a year ago
“Property-based testing” refers to the idea of writing statements that should be true of your code (“properties”), and then using automated tooling to generate test inputs (typically, randomly-generated inputs of an appropriate type), and observe whether the properties hold for...
Notes on software...
Reviewing the Surface Book 2
The first few paragraphs cover what I was looking for and what I
considered. Then the review.
Why...
over a year ago
The first few paragraphs cover what I was looking for and what I
considered. Then the review.
Why the Surface Book 2
I used a Macbook throughout my professional career until I had the
choice a few years ago when I started my current job. Here, I ran
Gentoo, then FreeBSD, then...
Jonas Hietala
Back to lazy.nvim
Around a month ago I had an affair with rocks.nvim.
It was fun, but I’m back together with lazy.nvim...
6 months ago
Around a month ago I had an affair with rocks.nvim.
It was fun, but I’m back together with lazy.nvim again.
This is a short post to explain why—at this point in time—the grass wasn’t greener on the other side.
Problems with rocks.nvim
Too many weird issues.
I had quite a few...
Christian Selig
More Efficient/Faster Average Color of Image
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of...
over a year ago
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of why you might want this!
Finding the average color of an image is a nice trick to have in your toolbelt for spicing up views. For instance on iOS, it’s used by Apple to make their...
Home on Erik...
MLConf 2014
Just spent a day at MLConf where I was talking about how we do music recommendations. There was a...
over a year ago
Just spent a day at MLConf where I was talking about how we do music recommendations. There was a whole range of great speakers (actually almost 2/3 women which was pretty cool in itself).
Here are my slides:
Home on Erik...
Analyzing 50k fonts using deep neural networks
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I...
over a year ago
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I had a bunch of scrapy scripts pulling down fonts and a few days later I had more than 50k fonts on my computer.
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...
9 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...
Style over Substance
Using the Olympus XA as an everyday carry camera
The Olympus XA has been my EDC camera this year and I gotta say – it’s a ton of fun. The concept of...
over a year ago
The Olympus XA has been my EDC camera this year and I gotta say – it’s a ton of fun. The concept of EDC – Every Day Carry – is that a piece of equipment should be light and compact enough to have with you every day, yet still versatile enough to be useful in […]
The post Using...
Jonas Hietala
Good and Bad Programmers
Every now and day blog posts about what it takes to be a good programmer or how you figure out if...
over a year ago
Every now and day blog posts about what it takes to be a good programmer or how you figure out if someone is a bad programmer arrives. There’s always talk about how you find the good programmers in interviews and the topic is always hot in schools and universities.
Today I read...
Jonas Hietala
addwatch: resource exhausted
While tampering with Hakyll and running site preview I stumbled upon this error message:
site:...
over a year ago
While tampering with Hakyll and running site preview I stumbled upon this error message:
site: addWatch: resource exhausted (No space left on device)
At first I tried to clear /tmp but, so clearly the device did have some space left. After a bit of googling I found a solution...
Willem's Blog
Using the reMarkable paper tablet
The paper-like display makes you forget about reMarkable's digital innards, working with this tablet...
over a year ago
The paper-like display makes you forget about reMarkable's digital innards, working with this tablet is therefore quite remarkable!
Willem's Blog
Tablet as Tool
Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and...
a year ago
Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and personal experiences to help you maximise the tablet's potential and redefine your workflow.
Neil Madden
Some incomplete thoughts about Gödel
I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve...
over a year ago
I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve wanted to write about for some time. Although many articles do a decent job in giving an idea of what the big deal is (and this one is pretty good), they can sometimes give a...
Louwrentius
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...
Arduino Blog
Reimagining the chicken coop with predator detection, Wi-Fi control, and more
The traditional backyard chicken coop is a very simple structure that typically consists of a...
5 months ago
The traditional backyard chicken coop is a very simple structure that typically consists of a nesting area, an egg-retrieval panel, and a way to provide food and water as needed. Realizing that some aspects of raising chickens are too labor-intensive, the Coders Cafe crew decided...
Jonas Hietala
October theme says: Numbers
New month and a new theme. As with the two previous games I’m following The Experimental Gameplay...
over a year ago
New month and a new theme. As with the two previous games I’m following The Experimental Gameplay Project theme which this month is numbers. What’s it gonna be? A sudoku game or something more… thrilling? I’ll see what I can do :)
Vitalik Buterin's...
[Mirror] Central Planning as Overfitting
over a year ago
Louwrentius
Script that shows relevant disk information
I wrote a small Python script called 'showdisks' that displays relevant information about any...
over a year ago
I wrote a small Python script called 'showdisks' that displays relevant information about any physical storage devices supported by hdparm.
Information such as model and capacity are shown, but also controller and device path.
This script only requires python and hdparm.
I hope...
./techtipsy
Disk is OK
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of...
over a year ago
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of Midas.
Or maybe it’s just the fact that I use my hardware for things they were never meant to be used for.
Anyway, I have acquired two Seagate 4TB external hard drives for doing some...
./techtipsy
I encourage you to write a blog
It’s been over 4 years since my first post on this blog.
During those 4 years I’ve written over 90...
4 months ago
It’s been over 4 years since my first post on this blog.
During those 4 years I’ve written over 90 posts, received over 1 million clicks,
a dozen legitimate reader e-mails and thousands of spam e-mails.
And I love it!
I’ve found that writing can be very fulfilling and I encourage...
computers are bad
2024-12-21 something over New Jersey
There were thousands of reports: strange aircraft, floating through the sky. A
retrospective sum of...
2 weeks ago
There were thousands of reports: strange aircraft, floating through the sky. A
retrospective sum of press accounts finds that some 100,000 people were
reported to have witnessed aerial intruders. Despite the scant details
associated with most reports, an eager press repeated the...
Willem's Blog
Increase traffic to your blog with a RSS feed
Using NodeJS I added RSS feeds to my blog as support for feeds can still provide you with value....
over a year ago
Using NodeJS I added RSS feeds to my blog as support for feeds can still provide you with value. Read about the "how" and "why" in this post.
Notes on software...
Zig, Rust, and other languages
Having worked a bit in Zig, Rust, Go and now C, I think there are a
few common topics worth having a...
10 months ago
Having worked a bit in Zig, Rust, Go and now C, I think there are a
few common topics worth having a fresh conversation on: automatic
memory management, the standard library, and explicit allocation.
Zig is not a mature language. But it has made enough useful choices
for a number...
Birchtree
How Flight Simulator helped my flying anxiety (members post)
It turns out video games really can impact how you view the world.
a month ago
It turns out video games really can impact how you view the world.
Home on Erik...
Software Engineers and Automation
Every once in a while when talking to smart people the topic of automation comes up. Technology has...
over a year ago
Every once in a while when talking to smart people the topic of automation comes up. Technology has made lots of occupations redundant, so what's next?
Switchboard operator, a long time ago
What about software engineers?
Jonas Hietala
Failed mime type for Krita
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open)...
over a year ago
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open) a file and gave the error:
Could not find mime type "application/x-krita"
Turns out if you reinstall the package shared-mime-info which comes natively with Slackware the...
Matt Blewitt
Riding the Risk Railway
When building and operating a user-facing system, especially one that is open to the public, it is...
over a year ago
When building and operating a user-facing system, especially one that is open to the public, it is important to consider the riskiness of a user, which can also be characterised as trustworthiness. These will typically be negatively correlated, with low trust indicating high risk...
Notes on software...
Learning a new codebase: hacking on nginx
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up,...
over a year ago
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up, compiling it, and running it
doesn't scare me. This post is to help you overcome your own fears
about doing so. Not necessarily because you should be running
out-of-tree diffs in...
Louwrentius
Fully unattended deployment of Windows clients using limited resources
Introduction
Anyone who ever installed Windows on a computer by hand must have wished for a solution...
over a year ago
Introduction
Anyone who ever installed Windows on a computer by hand must have wished for a solution that automate this task. It's just waiting a lot and pressing a button now and then. But installing the operating system itself is only the beginning. Once installed, you need to...
Arduino Blog
Explore e-paper technology with Nano Matter and the new EPDK-Matter from Pervasive Displays
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for...
3 weeks ago
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for Matter! This groundbreaking, self-contained kit is designed to revolutionize how smart home devices use e-paper displays, enhancing user experience while driving down energy...
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...
Willem's Blog
Protecting VMware ESXi
In response to a possible security breach on a VMware ESXi host machine, I search for a way to...
over a year ago
In response to a possible security breach on a VMware ESXi host machine, I search for a way to improve security of the management console using NGINX and a firewall
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.
Willem's Blog
Scalable application design without magic
I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I...
over a year ago
I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I did this by leveraging the client's computing power having it handle most of the user interaction workload.
Arduino Blog
Enhance your IoT dashboards with Arduino Cloud’s new Image widget
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited...
4 months ago
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited to announce a new feature for Arduino Cloud that will allow you to enhance your IoT dashboards: the Image widget. The new Image widget The Image widget is a simple yet powerful...
Ken Shirriff's blog
Inside the tiny chip that powers Montreal subway tickets
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it...
6 months ago
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens.
The ticket works through a system called NFC, but what's happening internally?
How does the ticket work without a battery? How does it communicate with the turnstile?
And how can it...
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,...
Jonas Hietala
Jonas IceCream Stand
Ahoy there! This time I’ll take you along for a ride with an arty Tycoon game.
Jonas IceCream...
over a year ago
Ahoy there! This time I’ll take you along for a ride with an arty Tycoon game.
Jonas IceCream Stand
Instructions
It should be pretty self-explanatory, it’s a very simply tycoon game.
Credits
Music:
Eric Maskol
Steve Chatterton
Sound effects:
freesound
Rest:
Me
On Life and Lisp
Growing up Alyssa
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky...
a year ago
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky ones.
After four painful years, I was fortunate enough to access gender-affirming health care. First testosterone blockers. Later estrogen, the stuff my peers soaked in for years while I...
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