Notes on software...
A reawakening of systems programming meetups
This year has seen a resurgence in really high quality systems
programming meetups. Munich...
5 months ago
This year has seen a resurgence in really high quality systems
programming meetups. Munich Database
Meetup, Berlin
Systems Group, SF Distributed
Systems Meetup, NYC
Systems, Bengaluru
Systems, to name a few.
This post summarizes a bit of disappointing recent tech meetup
history,...
Louwrentius
Linode hacked: thoughts about cloud security
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of...
over a year ago
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of existing users regarding the Linode management console.
Resetting passwords is not something you do when under a simple attack such as a DDOS attack. Such a measure is only taken...
Home on Erik...
Miscellaneous unsolicited (and possibly biased) career advice
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of...
over a year ago
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of mistakes and luck so I thought I'd share some.
Honestly, I feel like I've mostly benefitted from luck.
Avestura's Blog
Explaining The Postgres Meme
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
a year ago
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
Computer Ads from...
Lintek Computer Accessories' Paper Tamer
Restore Order (to your printer)
8 months ago
Restore Order (to your printer)
Matt Mullenweg
Rhino Dehorning
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles,...
2 months ago
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles, elephants. Today wasn’t great: I witnessed a rhino shot with a tranquilizer from a helicopter, then it was held down, had its horns cut off, and then shaved down. I have some photos and...
Arduino Blog
A new Plug and Make Kit challenge! A game of rhythm and creativity
The Arduino Plug and Make Kit is all about unleashing creativity while simplifying the process of...
a week ago
The Arduino Plug and Make Kit is all about unleashing creativity while simplifying the process of turning ideas into reality. It enables everyone to focus on the fun of creating with the power of the UNO R4 WiFi and a user-friendly, modular design – bypassing the complexities of...
Louwrentius
Unattended automatic installation of Linux nvidia binary driver
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver....
over a year ago
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver. This is a manual proces by default. However, it can be
done fully automatic:
prerequisite: install xserver-xorg-dev package or similar xorg development
package.
sh NVIDIA-.run -q...
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...
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...
Abort Retry Fail
The History of GM-NAA I/O and SHARE
The Birth of Computer Operating Systems
a year ago
The Birth of Computer Operating Systems
Abort Retry Fail
The History of Lotus
The Hardest Working Software in the World
a year ago
The Hardest Working Software in the World
Willem's Blog
The value of notifications
It's easy to dismiss your phone's notifications as something that disturbs you, but if you take the...
over a year ago
It's easy to dismiss your phone's notifications as something that disturbs you, but if you take the time to set them up correctly, notifications can actually save you time!
Arduino Blog
Explore two ways to white label with Arduino Cloud
We’re excited to announce a brand-new feature called “Custom Branding,” which allows Enterprise plan...
7 months ago
We’re excited to announce a brand-new feature called “Custom Branding,” which allows Enterprise plan users to white label their workspace and enhance the overall user experience. This announcement is exciting because it empowers businesses to create a truly tailored environment...
Arduino Blog
Seaside Sweeper keeps beaches pristine
Without anyone caring for them, beaches quickly become trash-covered swaths of disappointment. That...
7 months ago
Without anyone caring for them, beaches quickly become trash-covered swaths of disappointment. That care is necessary to maintain the beautiful sandy havens that we all want to enjoy, but it requires a lot of labor. A capstone team of students from the University of Colorado...
Vitalik Buterin's...
Notes on Blockchain Governance
over a year ago
./techtipsy
This page looks better in the app
You’re a web developer at a social media company that has recently made a big push for
modernizing...
over a year ago
You’re a web developer at a social media company that has recently made a big push for
modernizing their frontend for the mobile-first era. It has taken a lot of time and effort from many people.
Countless challenges, arguments, testing.
The release is near. You’re probably a bit...
./techtipsy
Testing GPU passthrough on AMD Ryzen 7 5700G APU
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are...
over a year ago
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are dealing with here since these topics
may be unfamiliar to you. VFIO is quite a niche topic and not everyone knows about it.
GPU passthrough: the process of allowing a VM...
Jonas Hietala
2014 Read Books
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin...
over a year ago
In total I read 20 books, which is 33% less than last year.
Fiction
How to Be a Woman - Catilin Moran
Fun!
The Kill Room - Jeffery Deaver
A Song of Ice and Fire: Game of Thrones - George R.R. Martin
Reread.
A Song of Ice and Fire: A Clash of Kings - George R.R. Martin
Reread.
A...
Applied Cartography
Peak Newsletter
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to...
5 months ago
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to admit this (I don't want more competition lol) but I think we're still probably a year or two away from Peak Newsletter. It's just a really good distribution mechanism for certain...
Applied Cartography
MD5-based uniqueness constraints in Django
Yesterday, I was trying to set a unique constraint for comments in Buttondown to prevent accidental...
3 months ago
Yesterday, I was trying to set a unique constraint for comments in Buttondown to prevent accidental double-commenting, and I ran into a problem that I hadn't seen before:
index row size 2816 exceeds btree version 4 maximum 2704 for index...
Notes on software...
How to recommend books, or, stop recommending SICP
Many "must-read" books are not well-written. I try to read a
lot, but I
still have a low tolerance...
over a year ago
Many "must-read" books are not well-written. I try to read a
lot, but I
still have a low tolerance for bad writing and bad editing. I write
this post both to discourage thoughtless recommendations and to
encourage the receivers of bad recommendations.
For software developers,...
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...
Arduino Blog
Agitating homemade PCBs with ease
If you want to make PCBs at home and you don’t happen to own a CNC mill, then you’ll probably need...
3 months ago
If you want to make PCBs at home and you don’t happen to own a CNC mill, then you’ll probably need to turn to chemical etching. Use one of several different techniques to mask the blank PCB’s copper that you want to keep, then toss the whole thing into a bath to dissolve away the...
Notes on software...
A minimal REST API in Java
There's a style of Java that is a joy to write. This post will cover
how to set up a basic...
over a year ago
There's a style of Java that is a joy to write. This post will cover
how to set up a basic PostgreSQL-integrated REST API using
Jersey and
JOOQ in a style not dissimilar to Flask and
SQLAlchemy in Python.
In particular, we'll try to avoid as much runtime
reflection/class-loading...
Neil Madden
Macaroon access tokens for OAuth: Part 2 – transactional auth
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a...
over a year ago
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a lightweight and easy-to-deploy alternative to proof of possession (PoP) schemes for securing tokens in browser-based apps. The same techniques can be adapted to secure tokens in...
Arduino Blog
Monitoring the weather with an Arduino MKR WiFi 1010-based station
Being able to monitor the weather in real-time is great for education, research, or simply to...
7 months ago
Being able to monitor the weather in real-time is great for education, research, or simply to analyze how the local climate changes over time. This project by Hackster.io user Pradeep explores how he was able to design a simple station outdoors that could communicate with a...
Jordan’s Substack
Coming soon
This is Jordan’s Substack.
a month ago
This is Jordan’s Substack.
Applied Cartography
Migrating someone who's on Stripe Connect Express
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author...
11 months ago
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author has full agency over their account and is the merchant of record;
they can revoke OAuth access from Substack (or whomever) at any time;
Substack continues to take that 10% as an...
Louwrentius
'Linux: show graphical layout of disk temperatures'
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a...
over a year ago
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a small
script. The output of this script looks like this:
This output is tailored to the exact disk lay-out of my storage
server. However, it is also usable for other servers. You have to...
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...
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:
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...
a month 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...
Jonas Hietala
My first rust Contribution
The problem with open-source for most people isn’t writing code, but it’s all the other things.
How...
over a year ago
The problem with open-source for most people isn’t writing code, but it’s all the other things.
How shall I push my changes? How do I handle git? What should I do?
I was the same and I actually dreaded my awesome summer job, just a little bit, because now I’m supposed to...
Arduino Blog
Synjets provide non-contact haptic feedback
If the COVID pandemic showed us anything, it is that our public spaces are overflowing with...
7 months ago
If the COVID pandemic showed us anything, it is that our public spaces are overflowing with opportunity for germ transmission. In 2019, most people didn’t think twice about touching a gas pump handle or an ATM touchscreen, but it quickly became apparent that such contact presents...
GitButler
GitButler is now Fair Source
GitButler is now officially one of the first members of the Fair Source movement, helping to shift...
4 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.
Abort Retry Fail
The History of the IBM 5100
IBM's First Personal Computer
a year ago
IBM's First Personal Computer
Jonas Hietala
The T-34 keyboard layout
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with...
over a year ago
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with much fewer keys, like the 36-key Gergoplex and the 44-key Kyria. I may write another post about the reasons why, but long story short I started getting pain in my thumbs, fingers,...
Electronics etc…
A Hardware Interposer to Fix the Symmetricom SyncServer S200 GPS Week Number Rollover Problem
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to...
4 months ago
Introduction
IMPORTANT: Use the Right GPS Antenna!
The Problem: SyncServer Refuses to Lock to GPS
The GPS Week Number Rollover Issue
Making the Furuno GT-8031 Work Again
How It Works
Build Instructions
Power Supply Recapping
The Future: A Software-Only Solution
The...
Home on Erik...
Wikiphilia
I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles...
over a year ago
I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles worth sharing and that's why I created the wikiphilia Twitter handle. Just a long stream of stuff that for one reason or another may be interesting.
Vitalik Buterin's...
Review of Gitcoin Quadratic Funding Round 3
over a year ago
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...
Jonas Hietala
We moved away from the city
When me and my girlfriend Veronica moved to Linköping to study at the University the plan was never...
over a year ago
When me and my girlfriend Veronica moved to Linköping to study at the University the plan was never to stay there permanently. We just moved there to study but the longterm plan, if you can have one at that stage, was always to move back to the north of Sweden where we came...
Jonas Hietala
Doing some online Personality tests
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own...
over a year ago
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own curiosity.
The Braverman Test
Inspired by Charles Poliquin’s visit on The Tim Ferriss Show I tried out the Braverman test to determine my neurotransmitter type. The point Charles...
Buck on Software
The Software Slog
As a newly minted high school grad I had a brief stint as a wildland firefighter.
a year ago
As a newly minted high school grad I had a brief stint as a wildland firefighter.
Electronics etc…
Tesla’s FSD - First and Last Impressions
TLDR: It’s a useless technology demo.
Introduction
Rules of Engagement
Test Ride 1: from Kings Beach...
7 months ago
TLDR: It’s a useless technology demo.
Introduction
Rules of Engagement
Test Ride 1: from Kings Beach to Truckee (11 miles)
Test Ride 2: I-80 from Truckee to Blue Canyon (36 miles)
Test Ride 3: from West-Valley College to I-85 Entrance (1 mile)
Conclusion
Introduction
In the past...
Avestura's Blog
Creating a Git commit: The Hard Way
Let's create a Git commit using Git's low-level (plumbing) commands
3 months ago
Let's create a Git commit using Git's low-level (plumbing) commands
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
I see dead people
This may be Apple Vision Pro's killer feature, enabling you to see dead people: augmenting old...
3 months ago
This may be Apple Vision Pro's killer feature, enabling you to see dead people: augmenting old photos into lifelike representations.
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 5: motor/tachometers
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears...
10 months ago
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears and cams for its mathematics. It was a key part of military planes such as the F-101 and the F-111 fighters,
computing
airspeed, Mach number, and other "air data".
The rotating...
Arduino Blog
Discover the new Arduino UNO SPE Shield: the quick and easy way to advanced connectivity
Arduino and Microchip are excited to open electronica – the “world’s leading trade fair and...
a month ago
Arduino and Microchip are excited to open electronica – the “world’s leading trade fair and conference for electronics” – by introducing the Arduino UNO SPE Shield, a powerful ally to bring advanced connectivity to new and existing projects, with Single-Pair Ethernet (SPE) and...
Louwrentius
Understanding the Ubuntu 20.04 LTS Server Autoinstaller
Introduction
Ubuntu Server version 18.04 LTS uses the debian-installer (d-i) for the installation...
over a year ago
Introduction
Ubuntu Server version 18.04 LTS uses the debian-installer (d-i) for the installation process. This includes support for 'preseeding' to create unattended (automated) installations of ubuntu.
the debian installer
With the introduction of Ubuntu Server 20.04 'Focal...
Home on Erik...
Blogroll
Remember when everyone had a really ugly blog with a blogroll? Anyway, just think the word is...
over a year ago
Remember when everyone had a really ugly blog with a blogroll? Anyway, just think the word is funny.
I follow a few hundred blogs using Feedly and Reeder and have been reading a few hundred thousand blog posts over the last 10 years.
Arduino Blog
Save 20% on Arduino Cloud Maker Plan this May!
Enhance your IoT projects with our special offer! Get 20% off a yearly subscription to the Arduino...
7 months ago
Enhance your IoT projects with our special offer! Get 20% off a yearly subscription to the Arduino Cloud Maker Plan using code CLOUD20MAY. Valid until the end of May, this deal saves you $14.38, reducing the price from $71.88 to $57.50. Benefits of the Maker Plan: What is Arduino...
Louwrentius
Belkin Gigabit USB 2.0 adapter works perfectly with Linux
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am
using a mac mini as my...
over a year ago
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am
using a mac mini as my internet router. As you may be aware, the mini has
only one network interface, so I added a second interface using a USB to
ethernet adapter. This adapter was limited to 100 Mbit, so...
Arduino Blog
Easily build an energy meter with the Arduino Nano Matter
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded...
2 months ago
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded equivalent of computers — general purpose devices that can perform a wide range of functions. And to get the most out of a microcontroller, you’ll also want connectivity suitable for...
Lars Lofgren
How Live Chat Tools Impact Conversions and Why I Launched a Bad Variant
Do those live chat tools actually help your business? Will they get you more customers by allowing...
over a year ago
Do those live chat tools actually help your business? Will they get you more customers by allowing your visitors to chat directly with your team? Like most tests, you can come up with theories that sound great for both sides. Pro Live Chat Theory: Having a live chat tool helps...
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...
Home on Erik...
Where do locals go in NYC?
One obvious thing to anyone living in NYC is how tourists cluster in certain areas. I was curious...
over a year ago
One obvious thing to anyone living in NYC is how tourists cluster in certain areas. I was curious about the larger patterns around this, so I spent some time looking at data. The thing I wanted to understand is: what areas are dominated by tourists?
Arduino Blog
BrainPatch.AI: How a British neurotech startup built a working prototype fast, using Arduino Nano 33...
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and...
3 months ago
The field of neurotechnology has been advancing rapidly in recent years, opening up to safe and effective non-invasive interfaces that can deliver tiny milliamp currents to the right stimulation location on the head, neck or body. One example of the new players in this field is...
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...
Jonas Hietala
Dbot
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl...
over a year ago
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl Dbot
Commands
.name - Echo the bots name
.hello - Output “hello world!”
.src - Dump the source code
Code
use IO::Socket;$s=IO::Socket::INET->new("158.38.8.251:6667");sub o{print$s...
Birchtree
Somehow, more YouTube gems
Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them...
2 days ago
Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them 😊
I love Answer in Progress, especially Sabrina’s videos, and she gets about as obsessed with anything she’s ever looked at in this episode (and
Abort Retry Fail
Housekeeping for 20240102
Some stats, updates, and whatnot
11 months ago
Some stats, updates, and whatnot
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...
Home on Erik...
Interviewing is a noisy prediction problem
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence...
over a year ago
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence in my ability to assess people. Let me just throw a couple of algorithm questions at a candidate and then I'll tell you if they are good or not!
Christian Selig
Recreating Apple's beautiful visionOS search bar
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front...
9 months ago
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front and center on the window so you can easily search through your content. Oddly, as of visionOS 1.1, replicating this visually as a developer using SwiftUI or UIKit is not...
Home on Erik...
Deep learning for… Go
This is the last post about deep learning for chess/go/whatever. But this really cool paper by...
over a year ago
This is the last post about deep learning for chess/go/whatever. But this really cool paper by Christopher Clark and Amos Storkey was forwarded to me by Michael Eickenberg. It's about using convolutional neural networks to play Go.
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom...
3 months ago
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
Willem's Blog
The day I sold my car
This week I sold my car, I now no longer own one. I look back at my years of owning a sports car, if...
over a year ago
This week I sold my car, I now no longer own one. I look back at my years of owning a sports car, if you're looking for a reason to buy one you should check this out.
./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...
Arduino Blog
A beautiful custom calculator built with IV-12 VFD tubes
Nixie tubes have been the go-to option for makers looking for retro display aesthetics for many...
6 months ago
Nixie tubes have been the go-to option for makers looking for retro display aesthetics for many years, because their distinct orange glow carries a lot of vintage appeal. But VFD (vacuum fluorescent display) tubes have been gaining in popularity recently and have different —...
Louwrentius
Got myself a Norco RPC-4020
I've got this fetish for storage. So I bought a case that gives me some room
for future expantion....
over a year ago
I've got this fetish for storage. So I bought a case that gives me some room
for future expantion. The current 6 TB RAID 6 storage server does not have any
room for expantion.
This Norco RPC-4020 case with 20 hot swap drive bays does however. Don't know
what to fill it with yet.
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.
Matt Blewitt
On That Okta LDAP Bug
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance...
a month ago
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance of sensible defaults.
Notes on software...
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...
Vitalik Buterin's...
La votación mediante blockchain está sobrevalorada entre personas desinformadas pero subestimada...
over a year ago
Notes on software...
Implementing a simple jq clone in Go, and basics of Go memory profiling
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of...
over a year ago
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of each object it reads. It won't be able to
do filters, mapping, etc.
$ cat large-file.json | head -n2 | ./jqgo...
Jonas Hietala
Habits to start
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or...
over a year ago
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or goals for this spring and I don’t have a clear vision of what to do currently but it also feels… fine? Maybe I will cruise in a lower gear for a while and rev up when my mood...
Notes on software...
We put a distributed database in the browser – and made a game of it
This is an external post of mine. Click
here
if you are not redirected.
a year ago
This is an external post of mine. Click
here
if you are not redirected.
Louwrentius
Configuring, attacking and securing VRRP on Linux
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple...
over a year ago
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple routers in an active/passive configuration. If the primary router fails, the backup router takes over almost seamlessly.
This is how VRRP works:
Clients connect to a virtual...
Jonas Hietala
Writing Home Assistant automations using Genservers in Elixir
I’ve been a fan of Home Assistant a while now;
it’s a great platform for home automation with its...
2 months ago
I’ve been a fan of Home Assistant a while now;
it’s a great platform for home automation with its beginner friendly and feature rich UI,
support for a ton of different devices and integrations,
and there’s a bunch of ways to create automations.
But there’s no engine for writing...
Good Enough
TIL: Tapback Keyboard Shortcuts
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant...
a year ago
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant past, simple reactions to messages were added: what Apple calls Tapbacks.
These are great for a quick way to say yes (or no, or WTF!?!), but they are a bit of a pain to actually...
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...
Avestura's Blog
How optimistic or pessimistic are the Kurzgesagt videos?
A sentiment analysis on the last 20 videos of Kurzgesagt.
a year ago
A sentiment analysis on the last 20 videos of Kurzgesagt.
Home on Erik...
Looking for smart people
I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small...
over a year ago
I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small startup called Better. We're going after one of the biggest industries in the world that also turns out to be completely broken.
Home on Erik...
The Filter Bubble is Silly and you Can't Guess What Happened Next
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here...
over a year ago
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here was about the filter bubble which prompted me to formalize my own thoughts.
I firmly believe that it's the role of a system to respect the user's intent.
Lighthouse Blog
How to import feeds in Lighthouse
8 months ago
Willem's Blog
Riding with a power meter on your bike
In this post I describe my experience with installing the 4iiii Precision Powermeter on my road...
over a year ago
In this post I describe my experience with installing the 4iiii Precision Powermeter on my road bike.
Good Enough
That time Marvel secretly endorsed my podcast with “the greatest comic book cover of all time”
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a...
a year ago
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a record of this somewhere on the internet!” and I don’t have my own blog.
Years ago my friend and I ran a radio show called Gorilla Madness, which we also spun out into a podcast after...
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.
Computer Ads from...
Plus Post: Rockwell AIM 65
The Company Rockwell International has been around for quite a while. Willard Rockwell started the...
7 months ago
The Company Rockwell International has been around for quite a while. Willard Rockwell started the company in 1919 to sell a newly designed truck axle bearing. Over the years, Rockwell acquired businesses in many different fields, including defense, industrial electronics,...
Willem's Blog
Born with MCADD
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were...
over a year ago
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were lucky to be just in time!
Jonas Hietala
Black and White
Here it is at last! Boasting a unoriginal name, themed Bare Minimum. My thoughts where to create a...
over a year ago
Here it is at last! Boasting a unoriginal name, themed Bare Minimum. My thoughts where to create a game where graphics where included into the gameplay but sadly it didn’t come out nearly as good as I expected it too.
Yes I know there are a lot of things bad and wrong with this...
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...
./techtipsy
AMD Ryzen 7 5700G: first impressions on Fedora 34
Introduction
I’ve covered my self-hosting setup in a previous post. It has been a couple of
months...
over a year ago
Introduction
I’ve covered my self-hosting setup in a previous post. It has been a couple of
months and the setup has mostly been fine. Sure, the power usage was pretty big under load, and yes, my internet did cut
out every time I turned the VM on with all the services starting,...
Christian Selig
Theming Apps on iOS is Hard
Theming apps (the ability to change up the color scheme for an app from say, a white background with...
over a year ago
Theming apps (the ability to change up the color scheme for an app from say, a white background with blue links to a light green background with green links) is a pretty common feature across a lot of apps. It’s one of the core features of the new “Twitter Blue” subscription,...
Jonas Hietala
Reinstalling Slackware
So I reinstalled slackware on my machine and decided to take some rough notes of the most important...
over a year ago
So I reinstalled slackware on my machine and decided to take some rough notes of the most important steps I made. I did not document the steps in detail, and some are very specific for my setup. But maybe it can be useful for someone, or myself.
Basic steps
Make slackware usb...
Notes on software...
Notes from Neal Gabler's Walt Disney
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though...
a year ago
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though politically the 1930s was considered the decade of
Roosevelt (elected President in 1933), culturally the 1930s was
considered the decade of Mickey Mouse.
Almost every new...
Posts on Made of...
A brief look at Linux's security record
After the fuss of the last two weeks because of CVE-2010-3081 and CVE-2010-3301, I decided to take a...
over a year ago
After the fuss of the last two weeks because of CVE-2010-3081 and CVE-2010-3301, I decided to take a look at a handful of the high-profile privilege escalation vulnerabilities in Linux from the last few years. So, here's a summary of the ones I picked out. There are also a large...
latest projects -...
Analemmagraph
[Concept] Video of a day, one year in every frame
a year ago
[Concept] Video of a day, one year in every frame
./techtipsy
ASRock DeskMini X300: the future form factor of desktop PC-s?
I wasn’t happy with my “one machine that does it all”
setup, which is why I finally bit the bullet...
over a year ago
I wasn’t happy with my “one machine that does it all”
setup, which is why I finally bit the bullet and got myself an ASRock DeskMini X300 bare-bones kit.
This is a fantastic little desktop PC kit that is very small, quiet and can
still be configured to have ridiculous amounts of...
detreville
A writer's autobiography
(Just not mine.)
a year ago
Louwrentius
Using ncat to provide SSL-support to non-ssl capable software
Sometimes, people are using software that does not support encrypted
connections using SSL. To...
over a year ago
Sometimes, people are using software that does not support encrypted
connections using SSL. To provide SSL-support to such a client, ncat can be
used. Ncat is part of nmap, the famous port-scanner.
The main principle is that the non-ssl capable software does not connect to
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...
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...
Birchtree
Squashing links on social media
Anil Dash: “Link in Bio” Is a Slow Knife
For a closed system, those kinds of open connections are...
2 weeks ago
Anil Dash: “Link in Bio” Is a Slow Knife
For a closed system, those kinds of open connections are deeply dangerous. If anyone on Instagram can just link to any old store on the web, how can Instagram — meaning Facebook, Instagram’s increasingly-overbearing owner — tightly
Home on Erik...
NYC Machine Learning meetup
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly....
over a year ago
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly. Unfortunately the quality isn't the best.
Abort Retry Fail
The History of OS/2
Getting a Divorce
a year ago
Home on Erik...
Tumblr's awesome project names
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about...
over a year ago
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about their projects named after Arrested Development topics: Gob, Parmesan, Buster, Jetpants, Oscar, George and Motherboy.
Still, the best software project name is probably still Apple's...
Louwrentius
Understanding Windows KMS and MAK volume license activation
Introduction
If you have to administer a large number of PCs running Windows, you will end up...
over a year ago
Introduction
If you have to administer a large number of PCs running Windows, you will end up creating an automated deployment platform for your Windows clients. You may implement something like Windows Deployment Services.
I used WDS to create a fully automated installation of...
Home on Erik...
Norvig's claim that programming competitions correlate negatively with being good on the job
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation...
over a year ago
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation between being good at programming competitions and being good at the job. There were some decent Hacker News comments on it.
Home on Erik...
Benchmark of Approximate Nearest Neighbor libraries
Annoy is a library written by me that supports fast approximate nearest neighbor queries. Say you...
over a year ago
Annoy is a library written by me that supports fast approximate nearest neighbor queries. Say you have a high (1-1000) dimensional space with points in it, and you want to find the nearest neighbors to some point.
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…...
Jonas Hietala
Going into Being Busy mode
I’m in the civil service atm and, sadly, we’re going to be extremely busy the coming… two months or...
over a year ago
I’m in the civil service atm and, sadly, we’re going to be extremely busy the coming… two months or something? So I can’t promise a game the next two months. Kinda beats the point of this site doesn’t it? I’m really sorry and that’s all I can say really…
Hopefully I’ll get a week...
Louwrentius
Most Technical debt is just bullshit
Introduction
I made an offhand remark about technical debt to a friend and he interrupted me,...
over a year ago
Introduction
I made an offhand remark about technical debt to a friend and he interrupted me, saying: "technical debt is just bullshit". In his experience, people talking about technical debt were mostly trying to:
cover up bad code
cover up unfinished work
source1
Calling...
Jonas Hietala
The current T-34 keyboard layout
I’ve been documenting my own keyboard layout in a series for a while now. But as the layout is...
over a year ago
I’ve been documenting my own keyboard layout in a series for a while now. But as the layout is constantly changing it’s been difficult to piece together how the layout currently looks like, so this post tries to show how the layout looks right now in it’s entirety.
If you want to...
Louwrentius
The future of ZFS now that OpenSolaris is dead
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very...
over a year ago
With the probable loss of OpenSolaris, there may be another, maybe more
devastating loss.
The very popular and very advanced Zetabyte File System (ZFS)
The only open source platform that actively supports ZFS is FreeBSD. And they
just 'copied' the code from OpenSolaris. Are they...
computers are bad
2023-02-07 secret government telephone numbers
Very nearly a year ago, I wrote a popular article about secret military
telephone
buttons.
To be...
a year ago
Very nearly a year ago, I wrote a popular article about secret military
telephone
buttons.
To be clear, the "secret" here was a joke and these buttons are in fact well
documented. The buttons I was talking about were the AUTOVON call precedence
buttons, used for a five-level...
Vitalik Buterin's...
Don't overload Ethereum's consensus
a year ago
Matt Mullenweg
On with Theo / T3.gg
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled...
2 months ago
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled This might be the end of WordPress. It was very harsh. In that video you’ll hear him say about me, “he’s a chronic hater” (7:55), “seems like he’s been a pretty petty bastard for a...
Jonas Hietala
Writing lessons learned after writing a book
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for...
a year ago
A good writer isn’t born; a good writer is created
It may sound dumb, but one of my reasons for writing a book was to improve my writing ability.
Maybe I could’ve practiced on the blog instead, but putting things on paper gave it some added weight I don’t think I would’ve gotten...
Computer Ads from...
Small Systems Engineering's PETSPEED
Fast Enough for the Human Race
5 months ago
Fast Enough for the Human Race
Arduino Blog
This automatic laser turret keeps the cats entertained for hours
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their...
2 months ago
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their cats indoors to avoid decimating the local wildlife population and that means Mr. Whiskers and Ms. Socks don’t get much opportunity to express their hunting urges. That’s why...
Arduino Blog
How makers can use AR and VR
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in...
6 months ago
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in popularity, with the combined market expected to reach $77 billion by 2025, from just $15.3 billion in 2020. For makers, AR and VR represent exciting opportunities to build new...
computers are bad
2023-06-12 radio on the tv
Like many people in my generation, my memories of youth are heavily defined by
cable television. I...
a year ago
Like many people in my generation, my memories of youth are heavily defined by
cable television. I was fortunate enough to have a premium cable package in
my childhood home, Comcast's early digital service based on Motorola equipment.
It included a perk that fascinated me but...
Lars Lofgren
The 9 Delusions From the Halo Effect
You’re being lied to. Well, not intentionally. We’re constantly being pinged with stories of...
over a year ago
You’re being lied to. Well, not intentionally. We’re constantly being pinged with stories of companies that have rocketed to success. Especially in tech, there’s always another $1 billion unicorn around the corner. Uber, Facebook, Airbnb, Slack, Zenefits, Box, Shopify, yadda...
Ken Shirriff's blog
Reverse engineering CMOS, illustrated with a vintage Soviet counter chip
I recently came across an interesting die photo of a Soviet1 chip, probably designed in the...
10 months ago
I recently came across an interesting die photo of a Soviet1 chip, probably designed in the 1970s.
This article provides an introductory guide to reverse-engineering CMOS circuits, using this chip as an
example.
Although the chip looks like a tangle of lines at first,
its large...
Notes on software...
What's the big deal about key-value databases like FoundationDB and RocksDB?
Let's assume you're familiar with basic SQL databases like PostgreSQL
and MySQL, and document...
over a year ago
Let's assume you're familiar with basic SQL databases like PostgreSQL
and MySQL, and document databases like MongoDB and Elasticsearch. You
probably know Redis too.
But you're hearing more and more about embedded key-value stores like
RocksDB,
LevelDB,
PebbleDB, and so on....
computers are bad
2023-09-10 the Essex GWEN site
Programming note: this post is in color. I will not debase myself to the
level of sending HTML...
a year ago
Programming note: this post is in color. I will not debase myself to the
level of sending HTML email, so if you receive Computers Are Bad by email
and want the benefit of the pictures, consider reading this online instead
(the link is at the top of the email).
In the aftermath of...
Arduino Blog
This Arduino-controlled machine dispenses the perfect bowl of cereal
Breakfast cereal is controversial. Milk or cereal first? Best cereal to milk ratio? Favorite cereal?...
7 months ago
Breakfast cereal is controversial. Milk or cereal first? Best cereal to milk ratio? Favorite cereal? Most attractive mascot? The opportunities for debate never end. But we can all agree that consistency is key when it comes to the milk:cereal ratio — nobody changes that up from...
Opsbros
WiFi Binary Clock
Who doesn't love a classic Binary Clock? I remember getting one of these when I was in my 20's from...
over a year ago
Who doesn't love a classic Binary Clock? I remember getting one of these when I was in my 20's from ThinkGeek, and it was pride of place on my desk. LED's are a thing of beauty.
Odds and Ends of...
Book now! Where we're going, we need roads (and trains)
My next in-person event/meet-up, with transport policy expert Michael Dnes!
3 weeks ago
My next in-person event/meet-up, with transport policy expert Michael Dnes!
Applied Cartography
Pytest: test for print statements
Inspired by Adam Johnson's test for pending migrations, and of course in conversation with my own...
5 months ago
Inspired by Adam Johnson's test for pending migrations, and of course in conversation with my own love of weird tests, I offer a similar concept: a test for finding stray print statements in your codebase, with a ratchet array for stuff to ignore.
import glob
PATH =...
Notes on software...
Writing a document database from scratch in Go: Lucene-like filters and indexes
In this post we'll write a rudimentary document database from scratch
in Go. In less than 500 lines...
over a year ago
In this post we'll write a rudimentary document database from scratch
in Go. In less than 500 lines of code we'll be able to support the
following interactions, inspired by Elasticsearch:
$ curl -X POST -H 'Content-Type: application/json' -d '{"name": "Kevin", "age": "45"}'...
Vitalik Buterin's...
A Note On Charity Through Marginal Price Discrimination
over a year ago
Buck on Software
Model transitions: A framework for value creation
And a quick and dirty look at SPLK, NTNX, and GWRE
over a year ago
And a quick and dirty look at SPLK, NTNX, and GWRE
Applied Cartography
The taste of beer
Unlike stories, real life, when it has passed, inclines toward obscurity, not clarity.
There’s a...
6 months ago
Unlike stories, real life, when it has passed, inclines toward obscurity, not clarity.
There’s a relatively famous line from Bezos, circulated first at YC in ’08 and then more recently by the folks at Acquired (a great pod!):
Jeff uses this analogy for AWS. He talks about...
Louwrentius
Why Debian/Ubuntu Linux is to be preferred
There are many Linux distributions around. However, I always come back to just
one: Debian. The...
over a year ago
There are many Linux distributions around. However, I always come back to just
one: Debian. The reason why so many people use Debian is the same reason I
like it so much: software management. With good old apt-get or the new
aptitude, software is installed within minutes. Due to...
Posts on Made of...
Reader/reader blocking in reader/writer locks
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition...
over a year ago
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition queue, all future accesses block behind any in-flight reads. Thus, if any readers hold the lock for extended periods of time, this can lead to extreme pauses and loss of throughput...
Louwrentius
Scanning many hosts in parallel with Nmap using PPSS
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output...
over a year ago
Scanning a large number of hosts using Nmap often takes a lot of time. During
this time, no output is written to a file or disk. Only when Nmap is finished,
is all output written to the output file. Often, I want to start processing
results of hosts that have already been...
Arduino Blog
Improve laser engraving speeds with an Arduino-controlled turntable
Engraving items with a laser-based system at home is amazingly convenient for one-off parts, but...
6 months ago
Engraving items with a laser-based system at home is amazingly convenient for one-off parts, but what happens when the production volume needs to increase? For element14 Presents host Clem Mayer, this usually meant preparing many uniform pieces of engraving stock, opening the...
Computer Ads from...
MacWorld Interviews Apple CEO John Sculley (1987)
They discuss the future of Apple, personal computing, and the Mac II
a month ago
They discuss the future of Apple, personal computing, and the Mac II
Applied Cartography
Notes on buttondown.com
We spent $85,000 for buttondown.com in April; this was the biggest capital expenditure I've ever...
3 months ago
We spent $85,000 for buttondown.com in April; this was the biggest capital expenditure I've ever made, and though it was coming from cash flow generated by Buttondown rather than my own checking account it was by rough estimation the largest non-house purchase I've ever made.
As...
Home on Erik...
The mathematical principles of management
I've read about 100 management books by now but if there's something that always bothered me it's...
over a year ago
I've read about 100 management books by now but if there's something that always bothered me it's the lack of first principles thinking. Basically it's a ton of heuristics. And heuristics are great, but when you present heuristics as true objectives, it kind of clouds the...
Electronics etc…
Guide Technology GT300 Frequency Standard Teardown
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [...
8 months ago
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Arduino Blog
Storing ephemeral micropoetry on RFID cards for bite-sized readings
Most people don’t consume poetry in the same way that they do novels. Instead of reading a book of...
3 months ago
Most people don’t consume poetry in the same way that they do novels. Instead of reading a book of poetry from cover-to-cover over the course of a few sessions, the majority of people seem to prefer enjoying poetry in occasional little chunks. And unlike the epic poems of Greek...
Willem's Blog
Moving to the countryside
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
over a year ago
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
Louwrentius
Creating a basic ZFS file system on Linux
Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux.
I'm...
over a year ago
Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux.
I'm documenting the scenario where I just want to create a file system that can tollerate at least a single drive failure and can be shared over NFS.
Identify the drives you want to use for the...
Jonas Hietala
Fixing Problems
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a...
over a year ago
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a nice thread with a great answer. I solved it by forcefully patching libflashplayer.so
perl -pi.bak -e 's/libvdpau/lixvdpau/g' libflashplayer.so
Worked perfectly!
I fixed the...
Notes on software...
Writing a Jinja-inspired template library in Python
In this post we'll build a minimal text templating library in Python
inspired by Jinja. It will be...
over a year ago
In this post we'll build a minimal text templating library in Python
inspired by Jinja. It will be able to display variables and iterate
over arrays.
By the end of this article, with around 300 lines of code, we'll be
able to create this program:
from pytemplate import...
Posts on Made of...
Thoughts On Kubernetes
I spent a while the last week porting livegrep.com from running directly AWS to running on...
over a year ago
I spent a while the last week porting livegrep.com from running directly AWS to running on Kubernetes on Google’s Cloud Platform (specifically, the google container engine, which provisions and manages the cluster for me).
I left this experience profoundly enthusiastic about the...
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...
Vitalik Buterin's...
Two thought experiments to evaluate automated stablecoins
over a year ago
./techtipsy
How to copy media off of an iPhone the hard way (using Linux)
I helped a family member upgrade to a newer iPhone and make some room so that the internal storage...
3 months ago
I helped a family member upgrade to a newer iPhone and make some room so that the internal storage does not run out.
They had Nextcloud installed on the current phone, but due to limitations of the Nextcloud iOS
app, the backups only take place if the app itself is open, meaning...
Push to Prod
How Would You Design Amazon S3?
One of my favorite system design questions from a few years ago and a fascinating thing I learned...
2 months ago
One of my favorite system design questions from a few years ago and a fascinating thing I learned while answering it.
Arduino Blog
Explore underwater with this Arduino-controlled DIY ROV
Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the...
4 months ago
Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the ocean? But a remotely operated vehicle (ROV), which is the kind of robot you’d use for such an adventure, isn’t exactly the kind of thing you’ll find on the shelf at your local...
Posts on Made of...
Write yourself an strace in 70 lines of code
Basically anyone who’s used Linux for any amount of time eventually comes to know and love the...
over a year ago
Basically anyone who’s used Linux for any amount of time eventually comes to know and love the strace command. strace is the system-call tracer, which traces the calls that a program makes into the kernel in order to interact with the outside world. If you’re not already familiar...
Posts on Made of...
A Brief Introduction to termios: termios(3) and stty
(This is part two of a multi-part introduction to termios and terminal emulation on UNIX. Read part...
over a year ago
(This is part two of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 if you’re new here)
In this entry, we’ll look at the interfaces that are used to control the behavior of the “termios” box sitting between the master and slave pty. The behaviors...
Posts on Made of...
Git in pictures
In my previous blog post, I discussed how git is distinctive among version control system in the way...
over a year ago
In my previous blog post, I discussed how git is distinctive among version control system in the way in which it makes the backend model that is being used to store data the most important element of the tool, and that experts use it by having the complete model in their head,...
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...
Ian's Blog
Securing Your GitHub Account
Let's talk about some of the simple & practical steps you can take to improve your GitHub account...
over a year ago
Let's talk about some of the simple & practical steps you can take to improve your GitHub account security.
There's plenty of good reasons why you should try to keep any online account safe, but I feel that GitHub deserves special attention among developers. With automation...
Matt Blewitt
Shunn
The Shunn manuscript format is a set of guidelines for writers to follow when submitting manuscripts...
6 months ago
The Shunn manuscript format is a set of guidelines for writers to follow when submitting manuscripts to publishers. It was created by author William Shunn and is widely used in the publishing industry. Here is a brief demonstration of a tool I wrote to facilitate generating...
Willem's Blog
Tudor Black Bay 36 long-term review
For the past six months I have been wearing the same watch, every day and night. Read along to learn...
over a year ago
For the past six months I have been wearing the same watch, every day and night. Read along to learn what makes the Tudor Black Bay 36 the perfect every day watch.
Push to Prod
Metrics Are The Map, Not The Territory
We can never obtain a complete and perfect understanding of what our systems are doing. All we have...
4 months ago
We can never obtain a complete and perfect understanding of what our systems are doing. All we have are incomplete signals to inform our theories.
Louwrentius
Migration from blogger to blogofile and disqus is complete
As stated in my previous post, I migrated all posts from blogger.com to my own host running...
over a year ago
As stated in my previous post, I migrated all posts from blogger.com to my own host running blogofile.
At the time of my previous post, I was not able to restore all comments made on my old blog. Thanks to some help
from disqcus I fixed an error on my behalf and all old comments...
Computer Ads from...
Black Friday - Happy Birthday sale
Let's mix things up!
3 weeks ago
Christian Selig
Smart Open Xcode
If you’re like me, you often have multiple versions of Xcode installed. One or two beta versions, a...
a year ago
If you’re like me, you often have multiple versions of Xcode installed. One or two beta versions, a stable version, and maybe another version in case the most recent stable version has something weird about it.
I also really like mapping my Caps Lock key to something more useful,...
Push to Prod
Making an AB Test Allocator 20x Faster Using Non-blocking IO
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it...
a month ago
Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it effectively.
Louwrentius
The impact of the MDADM bitmap on RAID performance
Introduction
I'm aware that most people with intensive storage workloads won't run those workloads...
over a year ago
Introduction
I'm aware that most people with intensive storage workloads won't run those workloads on hard drives anymore, that ship has sailed a long time ago. SSDs have taken their place (or 'the cloud').
For those few left who do use hard drives in Linux software RAID setups...
Notes on software...
Controlled HTML select element in React has weird default UX
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Gwern.net Newsletter
May Gwern.net Newsletter
Link compilation newsletter with anime GAN updates, links on AI scaling, discussion of GPT-3, and 1...
over a year ago
Link compilation newsletter with anime GAN updates, links on AI scaling, discussion of GPT-3, and 1 book review.
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 week ago
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast or infuriatingly slow.
Jonas Hietala
Favourite Programming Language
All the programmers love to promote their favourite language, or to hate on others. Now I read a...
over a year ago
All the programmers love to promote their favourite language, or to hate on others. Now I read a post which claimes my favourite language is not good enough! But he’s correct of course, there is no one language to rule them all. You should always choose the mest language for the...
GitButler
Git Merge 2024 Talks are Up
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
a month ago
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
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...
Arduino Blog
Exploring fungal intelligence with biohybrid robots powered by Arduino
At Cornell University, Dr. Anand Kumar Mishra and his team have been conducting groundbreaking...
a month ago
At Cornell University, Dr. Anand Kumar Mishra and his team have been conducting groundbreaking research that brings together the fields of robotics, biology, and engineering. Their recent experiments, published in Science, explore how fungal mycelia can be used to control robots....
Applied Cartography
Letters to a Young Bartender
Every straight white male is forced, character-creation-screen-style, to choose one overtly...
2 weeks ago
Every straight white male is forced, character-creation-screen-style, to choose one overtly consumptive hobby that in some small part defines their twenties and – God willing — their enduring adulthood. Some choose sourdough; many choose barbecue; I chose mixology.
(A...
Louwrentius
Highpoint RocketRAID 2320 on Debian howto
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed...
over a year ago
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed binary driver.)
http://www.highpoint-tech.com/USA/bios_rr2320.htm
Install the kernel headers if you haven't already
- apt-get install linux-headers-2.6.18-6-k7
- extract the...
Arduino Blog
You can now work in collaboration in Arduino Cloud
In today’s busy world, getting students or engineers to work together is key to tackling complex IoT...
3 months ago
In today’s busy world, getting students or engineers to work together is key to tackling complex IoT projects. Traditional code sharing and editing methods, like using offline IDEs or swapping files manually, often slow down projects and lead to mistakes. This can be a hassle and...
seangoedecke.com RSS...
Acing the design interview
If you haven’t designed an actual system before, design interviews can be tough. Knowing how to work...
over a year ago
If you haven’t designed an actual system before, design interviews can be tough. Knowing how to work with a particular web service or…
Arduino Blog
Enjoy a perpetual solar eclipse with this machine
Total solar eclipses are rare — at least from the perspective of any specific point on the planet. A...
5 months ago
Total solar eclipses are rare — at least from the perspective of any specific point on the planet. A total eclipse will occur somewhere on Earth once every 18 months or so, but that is more likely to track across the middle of the Pacific Ocean than wherever you happen to be....
Jonas Hietala
Let's build a VORON: Toolhead
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt...
a year ago
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt are installed
Tap is installed
The toolhead with Stealthburner + Clockwork 2 is also installed
Purple means Pretty.
I’ve run into a few problems on the way that I’ll try to...
Willem's Blog
The Ultimate Freedom Bike
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and...
over a year ago
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and wherever you please!
Simply Explained
MAX17043: Battery Monitoring Done Right (Arduino & ESP32)
Building a battery-powered IoT device? Then you'll want to monitor the battery's percentage. Here's...
over a year ago
Building a battery-powered IoT device? Then you'll want to monitor the battery's percentage. Here's how to do it properly.
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 6. an x86 upgrade
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
3. LLVM
4. LLVM conditionals and compiling fibonacci
5. LLVM system calls
This post upgrades the ulisp x86 backend from using a limited set of
registers (with no spilling...
Good Enough
TIL: Turbo Frames
DoEvery.Day calendar navigation was broken. We built it using Turbo Rails as it was being developed....
a year ago
DoEvery.Day calendar navigation was broken. We built it using Turbo Rails as it was being developed. As we have updated libraries, including Rails, the API has changed. In order to get the calendar navigation working again, I had to pull out some old hacks that made use of...
Vitalik Buterin's...
An Incomplete Guide to Rollups
over a year ago
Jonas Hietala
Minor site updates
As it happens I got a little tired of the syntax highlighter Pandoc uses so on a whim I started...
over a year ago
As it happens I got a little tired of the syntax highlighter Pandoc uses so on a whim I started looking at moving to Pygments as my highlighter. With some searching around I found a blog post about just that! That’s lucky because while I like Haskell, I’ve never really grocked it...
Good Enough
TIL: Turbo Stream broadcasting needs default_url_options to be set
We've been using Turbo Streams in some of our recent prototypes, which makes it really easy and fun...
a year ago
We've been using Turbo Streams in some of our recent prototypes, which makes it really easy and fun to get responsive and fun interactions set up. However, we kept having issues with images sent in a turbo stream response.
If the response was delivered by a normal controller...
Good Enough
TIL: Use randomness to prevent email trimming
With conversation threading (which almost everyone has enabled), Gmail was trimming the bottom of...
a year ago
With conversation threading (which almost everyone has enabled), Gmail was trimming the bottom of the emails we send with our new app because they were too similar to the other emails in the conversation thread.
They’re similar because that’s just the link to get back into the...
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.
Old Vintage...
Thou shalt follow these Vintage Computing Commandments
Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote...
10 months ago
Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote and release smoke. This is sometimes very hard to judge without a load, but they should be somewhere in the ballpark, verily, and you should get in the habit of checking any new...
Style over Substance
CANARY Corrugated Cardboard Cutter
The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases...
over a year ago
The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases ever. During the COVID-19 lockdowns, we all started shopping online a lot more. The number of cardboard boxes in our house basically quadrupled overnight and cutting them down to size...
Abort Retry Fail
The History of Commodore, Part 1
Chuck Peddle, the 6502, MOS, and the PET
a year ago
Chuck Peddle, the 6502, MOS, and the PET
Computer Ads from...
Salamander Software's Franklin's Tomb
My name is Diamond, Dan Diamond. I'm a private cop.
9 months ago
My name is Diamond, Dan Diamond. I'm a private cop.
Engineers Need Art
VPX Scripting - Part 3 (Cut & Paste)
Sound code is added in this third in a series of posts about scripting Visual Pinball tables.
8 months ago
Sound code is added in this third in a series of posts about scripting Visual Pinball tables.
Notes on software...
Metaprogramming in Zig and parsing CSS
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it....
a year ago
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it. What's the difference between
@typeInfo and @TypeOf? I ignored this aspect of Zig until a
problem came up at work where reflection
made sense.
The situation was parsing and storing...
Arduino Blog
These Shattered Space helmet replicas stay video game accurate using an Arduino Nano
Starfield, a game set in the vast expanse of our galaxy, is receiving a new expansion called...
2 months ago
Starfield, a game set in the vast expanse of our galaxy, is receiving a new expansion called “Shattered Space” in which players can don novel weapons and gear to take on the latest challenge. As part of its release, the expansion’s publisher Bethesda reached out to cosplayer...
anderegg.ca
The “Home Alone” / “NiGHTS into Dreams” connection
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one...
2 weeks ago
NiGHTS into Dreams is one of those games I tend to think about when Christmas rolls around. It’s one of my favourites from the Saturn lineup, and it also had a free Christmas version.
In it, there’s a song I really love that plays on the level select screen called Gate of Your...
Home on Erik...
The number of letters in the word for each number
Just for fun, I generated these graphs of the number of letters in the word for each number. I...
over a year ago
Just for fun, I generated these graphs of the number of letters in the word for each number. I really spent about 10 minutes on this (ok…possibly also another 40 minutes tweaking the plots):
More languages!
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...
Home on Erik...
Domains for sale
Contact me at mail at erik bern dot com!
over a year ago
Contact me at mail at erik bern dot com!
Push to Prod
When Things Are Slow, Look for Queues
When your system is slower than desired, queues are often heavily involved. Here's an overview of...
4 months ago
When your system is slower than desired, queues are often heavily involved. Here's an overview of the most common situations.
Neil Madden
A few clarifications about CVE-2022-21449
Just a few quick notes/updates to correct some potentially inaccurate statements that are floating...
over a year ago
Just a few quick notes/updates to correct some potentially inaccurate statements that are floating around on Reddit/Twitter etc: The bug only impacts Java 15 and above. The original advisory from Oracle incorrectly listed earlier versions (like 7, 8 and 11) as being impacted....
computers are bad
2023-04-30 los alamos - compound to county pt II
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly...
a year ago
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly administered by the Atomic Energy Commission (AEC).
The Atomic Energy Communities Act (AECA) mandated the AEC to dispose of the
towns it owned by transferring the property to private...
Notes on software...
Build a serverless ACID database with this one neat trick (atomic PutIfAbsent)
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability,...
2 months ago
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability, and the number of open-source
implementations, it's quickly becoming the DuckDB of serverless
transactional databases for analytics workloads. Iceberg is a
contender too, and is...
lcamtuf’s thing
Deep dive: the (in)stability of op-amps
A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
a month ago
A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
Posts on Made of...
Towards solving Ultimate Tic Tac Toe
Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey...
over a year ago
Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey into interesting algorithms and high-performance parallel programming in Rust.
Backstory Starting around the beginning of the COVID-19 lockdown, I’ve gotten myself deeply nerdsniped...
Home on Erik...
Detecting corporate fraud using Benford's law
Note: This is a silly application. Don't take anything seriously.
Benford's law describes a...
over a year ago
Note: This is a silly application. Don't take anything seriously.
Benford's law describes a phenomenon where numbers in any data series will exhibit patterns in their first digit. For instance, if you took a list of the 1,000 longest rivers of Mongolia, or the average daily...
Louwrentius
I switched my blog from Blogofile to Pelican
This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile...
over a year ago
This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile but I switched to Pelican.
Blogofile has seen almost no updates over the years and I consider the project dead. Realising that blogofile is dead, I decided to look around for...
./techtipsy
I finally found an use case for my Raspberry Pi Model B+
You have probably heard about the Raspberry Pi. It’s a nice little affordable
single-board computer...
over a year ago
You have probably heard about the Raspberry Pi. It’s a nice little affordable
single-board computer with a huge community using it for all sorts of projects.
I got my first Raspberry Pi, the Model B+,
during my first year at university, which was around the winter of...
Home on Erik...
3D in D3
I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for...
over a year ago
I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for instance this demo (will provide a longer writeup soon).
D3 doesn't have support for 3D but you can do projections into 2D pretty easily.
Notes on software...
Make your own way
Over the years, I have repeatedly felt like I missed the timing for a
meetup or an IRC group or...
12 months ago
Over the years, I have repeatedly felt like I missed the timing for a
meetup or an IRC group or social media in general. I'd go to a meetup
every so often but I'd never make a meaningful connection with people,
whereas everyone else knew each other. I'd join an IRC group and...
Vitalik Buterin's...
[Mirror] A Proof of Stake Design Philosophy
over a year ago
Abort Retry Fail
Housekeeping for 20240309
Super quick updates
9 months ago
Electronics etc…
Remote Controlling an HP 1670G Logic Analyzer with a Linux PC X Server
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the...
12 months ago
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the logic analyzer
Allow the logic analyzer to access your Ubuntu X server
Configure the X-window Settings on the logic analyzer
Install and declare the HP logic analyzer font...
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...
2 weeks 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
Abort Retry Fail
Housekeeping for 20240701
Another correction
5 months ago
Yazin Alirhayim
Tracking where a WhatsApp user came from
At Amal, we have an AI chat bot that works over WhatsApp — allowing our customers to speak to their...
over a year ago
At Amal, we have an AI chat bot that works over WhatsApp — allowing our customers to speak to their bank account, asking questions like “What’s my balance” and “How much have I spent on Uber’s this month?”.
A problem we faced really early on when connecting to WhatsApp was that...
Christian Selig
The Caldera: a sleek split and wireless keyboard
I designed my own keyboard and it’s freely available! I’m calling it the Caldera, and it’s basically...
5 months ago
I designed my own keyboard and it’s freely available! I’m calling it the Caldera, and it’s basically my dream wireless split keyboard.
I’ve been using it for months, and I love it.
Video overview
If you’re a visual person, I made a fun little video showcasing the...
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...
./techtipsy
Whacky setups: seedbox on a wall
The Orange Pi Zero is one hell of an SBC. It has served as
a Wi-Fi access point for months without...
over a year ago
The Orange Pi Zero is one hell of an SBC. It has served as
a Wi-Fi access point for months without issues
and as a testbed for playing around with MySQL.
I wanted it to be a useful device again, but had trouble finding an use case for it due to its hardware limitations.
After...
Willem's Blog
Talking tablets: what makes a great tablet?
Over the past few weeks I worked with Microsoft Surface Pro X to see if it is any good, can it be...
over a year ago
Over the past few weeks I worked with Microsoft Surface Pro X to see if it is any good, can it be your main computer?
Notes on software...
Interpreting Go
After spending some time at work on tooling for keeping documentation
in sync with Go struct...
over a year ago
After spending some time at work on tooling for keeping documentation
in sync with Go struct definitions I had enough exposure to Go's
built-in parsing package that next steps were clear: write an
interpreter. It's a great way to get more comfortable with a
language's
AST.
In...
Avestura's Blog
Understanding zero-knowledge proofs
What are zero-knowledge proofs, really?
over a year ago
What are zero-knowledge proofs, really?
Christian Selig
Juno 1.1
If you’re new, Juno is a visionOS app for YouTube!
Juno’s initial launch blew my socks off. It was...
10 months ago
If you’re new, Juno is a visionOS app for YouTube!
Juno’s initial launch blew my socks off. It was such a cool feeling to release an app on day one of the Apple Vision Pro’s launch, and having people be so excited about it and have such great feedback made it that much better....
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.
Willem's Blog
The birth of a child
Witnessing the birth of a child changes a man, for science and curiosity I wore a biometric sensor...
over a year ago
Witnessing the birth of a child changes a man, for science and curiosity I wore a biometric sensor capturing the impact of birth on yours truly.
Applied Cartography
How shadcn/ui examples work
I’m increasingly convinced that for developer-first tools, a really good docs experience is a...
7 months ago
I’m increasingly convinced that for developer-first tools, a really good docs experience is a durable, non-trivial advantage.
Part of this thesis is that Really Good Docs Experiences, in addition to having great information architecture and strong writing/prose, should be thought...
Vitalik Buterin's...
On Nathan Schneider on the limits of cryptoeconomics
over a year ago
Lighthouse Blog
How to manually add content to read it later
6 months ago
Posts on Made of...
Using wpa_supplicant on Debian/Ubuntu
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that...
over a year ago
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that it’s pretty close to what I want for managing wireless — closer than anything else I’ve found, at least. I figured I should document my setup and experiences.
Some Background You...
Buck on Software
Explaining the growth software sell-off
The terminal value double whammy of rising interest rates
over a year ago
The terminal value double whammy of rising interest rates
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)...
Simply Explained
Migrating This Blog From Jekyll to Eleventy
Jekyll has been powering this site for many years now. It replaced my WordPress setup, and I haven't...
over a year ago
Jekyll has been powering this site for many years now. It replaced my WordPress setup, and I haven't looked back. Over the last few months, I have become fed up with Jekyll. It's slowing me down. Time to replace it with something new and shiny!
Christian Selig
First on New Blog
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will...
a year ago
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will remove.
This goat’s name is apparently Gubgub, and very cute.
Posts on Made of...
Why node.js is cool (it's not about performance)
For the past N months, it seems like there is no new technology stack that is either hotter or more...
over a year ago
For the past N months, it seems like there is no new technology stack that is either hotter or more controversial than node.js. node.js is cancer! node.js cures cancer! node.js is bad ass rock star tech!. I myself have given node.js a lot of shit, often involving the phrase...
GitButler
GitButler 0.13 - "Lucky Baseball"
It has been 4 months since our last minor release. In that time, we have done 27 patch releases,...
2 months ago
It has been 4 months since our last minor release. In that time, we have done 27 patch releases, adding lots of small features, bug fixes, performance improvements and experiments.
Last week we released GitButler 0.13, which is our first release with our new Fearless Rebasing...
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...
Home on Erik...
Spotify's Discovery page
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage...
over a year ago
The Discovery page, the new start page in Spotify, is finally out to a fairly significant percentage of all users. Really happy since we have worked on it for the past six months. Here's a screen shot:
Matt Mullenweg
My Freedom of Speech
WP Engine has filed hundreds pages of legal documents seeking an injunction against me and...
2 months ago
WP Engine has filed hundreds pages of legal documents seeking an injunction against me and Automattic. They say this is about community or some nonsense, but if you look at the core, what they’re trying to do is ask a judge to curtail my First Amendment rights. The First...
Arduino Blog
Kick off the Monaco Grand Prix weekend with these Formula 1-inspired Arduino projects
The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the...
7 months ago
The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the season. While most fans can’t participate directly — except as spectators — they can celebrate their passion through DIY projects. That’s why we’ve scoured the community to find the...
Jonas Hietala
Being Productive
School’s been going on now for… Is it a month and a half maybe? I don’t know really but it’s all...
over a year ago
School’s been going on now for… Is it a month and a half maybe? I don’t know really but it’s all going so fast, week after week is disappearing and I don’t know where they go but I know that I’m at least not wasting them like I did most of last year!
Last year I managed school...
Arduino Blog
This 3D-printed robotic arm can be built with just a few inexpensive components
Robotics is already an intimidating field, thanks to the complexity involved. And the cost of parts,...
2 months ago
Robotics is already an intimidating field, thanks to the complexity involved. And the cost of parts, such as actuators, only increases that feeling of inaccessibility. But as FABRI Creator shows in their most recent video, you can build a useful robotic arm with just a handful of...
Lighthouse Blog
Updates September 16: Explore all available articles of a feed
3 months ago
Notes on software...
Starting a minimal Common Lisp project
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like...
over a year ago
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like what you'd expect. While
functional programming is all the rage in Scheme, Common Lisp was
"expressly designed to be a real-world engineering language rather
than a theoretically...
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.
Jonas Hietala
Building my ultimate keyboard
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate...
3 weeks ago
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate keyboard”?
There are many keyboards in this world; here are some that might fit the “ultimate” moniker:
Das Keyboard 4 Ultimate mechanical keyboard
DataHand
Ergodox EZ
Glove80
Happy...
Electronics etc…
Zephyr Ravenna Control Board Replacement
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing...
7 months ago
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing Information
Two PCBs - Control Board & Switch Assembly
Switch of the Breaker!!!
Glass Canopy Removal
Duct Cover Removal
Swapping the Control...
./techtipsy
Back to roots
This blog is running on a home server again.
I have once again gained access to a competent internet...
6 months ago
This blog is running on a home server again.
I have once again gained access to a competent internet connection1, and
I think I have figured out the IPv6 setup as well2, leading to this change.
The IP address is dynamic, there are occasional power outages and I might just
mess up...
Applied Cartography
Notes from April
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past...
7 months ago
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past two years as an independent technologist.
On the media side of things: brief words on Murderville (meh), The Parallax View (incredible), This is Personal (meh), Cribsheet...
Lars Lofgren
The Stupidity of Google’s Site Reputation Abuse Policy
Site reputation abuse is when a third-party abuses the reputation of a domain to rank a bunch of...
a month ago
Site reputation abuse is when a third-party abuses the reputation of a domain to rank a bunch of pages in Google. The SEO community refers to this type of thing as parasite SEO. Google has gone so far as to publish an official policy (documented here) on how this isn’t allowed:...
Good Enough
Season 1, Issue 2: Just the Two of Us
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing...
over a year ago
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing anything. Take it away, fellas…
1. Still Positive
Did you know that once you acquire COVID-19 your PCR test can be positive for up to 90 days? Did you know that the at-home tests...
axio.ms
Pickle plus mains
Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with...
over a year ago
Back in February 2014, it was a cold (but dry) winter’s night and we decided to warm our hearts with some science.
Our experiment was to observe the conduction of electricity through a pickle, using salt ions. We connected a pickle to the mains supply. Pickles have a strong...
Willem's Blog
Around town in an electric car
For one week I drove the electric Smart EQ fortwo in and around town. I found out what it's like to...
over a year ago
For one week I drove the electric Smart EQ fortwo in and around town. I found out what it's like to drive electrically: fun!
./techtipsy
Dell Latitude 5411: the Linux compatibility sweet spot
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my...
a year ago
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my article on why I went back to a ThinkPad T430 in 2022.
Or that other time when I got a new HP laptop for testing and got so frustrated that I wrote about it.
Well, today I’m writing...
Jonas Hietala
On The Decline of FPS Games
Mr. Eriksson just sent me this link as a fitting video on my post on The Decline of FPS...
over a year ago
Mr. Eriksson just sent me this link as a fitting video on my post on The Decline of FPS Games.
https://www.youtube.com/watch?v=W1ZtBCpo0eU
Oh How true!
Computer Ads from...
Plus Post: Lobo MAX-80
The Computer Tandy Should Have Built (at least according to the ad).
9 months ago
The Computer Tandy Should Have Built (at least according to the ad).
./techtipsy
Oops, I published my drafts!
Those of you who follow my blog using the RSS feed might have seen that new, incomplete posts popped...
10 months ago
Those of you who follow my blog using the RSS feed might have seen that new, incomplete posts popped up around the time
I published my FOSDEM 2024 post.
Oops.
I recently tried looking for an alternative to writing blog posts in IntelliJ and out of all the options I stuck...
Odds and Ends of...
Nobody knows what the National Data Library is (not even the government)
A policy wrapped in a mystery inside an enigma
a month ago
A policy wrapped in a mystery inside an enigma
Notes on software...
io_uring basics: Writing a file to disk
King and I wrote a blog
post
about building an event-driven cross-platform IO library that...
a year ago
King and I wrote a blog
post
about building an event-driven cross-platform IO library that used
io_uring on Linux. We sketched out how it works at a high level but I
hadn't yet internalized how you actually code with io_uring. So I
strapped myself down this week and wrote...
Matt Mullenweg
Welcoming Harper
As announced by Automattic and covered by TechCrunch, I want to take a moment to welcome Elijah...
a month ago
As announced by Automattic and covered by TechCrunch, I want to take a moment to welcome Elijah Potter and Harper to join Automattic. Harper is a super-fast (way faster than LanguageTool and Grammarly), local English grammar checker. The technology is nascent, but I’m very...
Willem's Blog
Health and fitness data
Exploring the balance between health data and intuition, this blog post delves into how personal...
11 months ago
Exploring the balance between health data and intuition, this blog post delves into how personal well-being and fitness goals shape our relationship with technology and self-awareness.
Notes on software...
AOT-compilation of Javascript with V8
tldr; I'm working on a AOT-compiled Javascript implementation called
jsc.
Many dynamically typed...
over a year ago
tldr; I'm working on a AOT-compiled Javascript implementation called
jsc.
Many dynamically typed programming languages have implementations that
compile to native binaries:
Python: Cython
Common Lisp: SBCL
Scheme: Chicken Scheme
The benefits of compiling dynamically typed...
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...
Louwrentius
ZFS: resilver performance of various RAID schemas
When building your own DIY home NAS, it is important that you simulate and test drive failures...
over a year ago
When building your own DIY home NAS, it is important that you simulate and test drive failures before you put your important data on it. It makes sense to know what to do in case a drive needs to be replaced. I also recommend putting a substantial amount of data on your NAS and...
computers are bad
2023-06-30 calling in the alarm
I currently find myself on vacation in the Canadian Rockies, where internet is
hard to come by. But...
a year ago
I currently find myself on vacation in the Canadian Rockies, where internet is
hard to come by. But here's something short while I'm temporarily back in the
warm embrace of 5G: more about burglar alarms. I recently gave a presentation
on this topic and I'll probably record it for...
Home on Erik...
Meta-blogging
(This is not a very relevant/useful post for regular readers – feel free to skip. I thought I would...
over a year ago
(This is not a very relevant/useful post for regular readers – feel free to skip. I thought I would share it so people can find it on Google.)
My blog blew up twice in a week earlier this year when I landed on Hacker News.
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...
Notes on software...
Writing a minimal Lua implementation with a virtual machine from scratch in Rust
By the end of this guide we'll have a minimal, working implementation
of a small part of Lua from...
over a year ago
By the end of this guide we'll have a minimal, working implementation
of a small part of Lua from scratch. It will be able to run the
following program (among others):
function fib(n)
if n < 2 then
return n;
end
local n1 = fib(n-1);
local n2 = fib(n-2);
...
Notes on software...
Book Review: ANSI Common Lisp
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow....
over a year ago
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow. The only awkward component of the book's organization
is that he tends to use a concept one section before explicitly
introducing and defining that concept. I'm not sure yet if this...
Birchtree
Gemini 2.0: speed and deep research impress
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today...
a week ago
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today we’re excited to launch our next era of models built for this new agentic era: introducing Gemini 2.0, our most capable model yet. With new advances in multimodality —
Vitalik Buterin's...
In-person meatspace protocol to prove unconditional possession of a private key
over a year ago
Notes on software...
The limitations of LLMs, or why are we doing RAG?
This is an external post of mine. Click
here
if you are not redirected.
6 months ago
This is an external post of mine. Click
here
if you are not redirected.
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
Applied Cartography
A good H1
Buttondown was kindly featured in H1 Gallery last week, and Ryan asked me to opine a bit on how we...
3 weeks ago
Buttondown was kindly featured in H1 Gallery last week, and Ryan asked me to opine a bit on how we arrived at our current iteration, which is the anodyne yet pointed Email for you. Yes, you.
Historically, we've called Buttondown a 'newsletter tool' — the h1 before this was 'The...
Louwrentius
Mounting a file system or partition from a disk image
You cannot just make a disk copy with dd and then just mount it as a regular
disk. You must know...
over a year ago
You cannot just make a disk copy with dd and then just mount it as a regular
disk. You must know where the partition starts on the disk. So first, you need
to get the partition table with sfdisk:
sfdisk -l -uS image_file.dd
The output is something like:
Disk...
Simply Explained
Tuya IR Hub: control Daikin AC (Home Assistant + ESPHome)
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to...
over a year ago
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to finally make my YTF IR Hub useable. Here's how I flashed ESPHome onto it and how I configured it for my Daikin AC and Home Assistant.
csvbase blog
My favourite API is a zipfile on the European Central Bank's website
Simple data pipeline powertools: sqlite, pandas, gnuplot and friends
a year ago
Simple data pipeline powertools: sqlite, pandas, gnuplot and friends
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...
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...
Jonas Hietala
My Dream Game: The RTS
Even if there are a million great games there’s one that has a very special place in my heart:...
over a year ago
Even if there are a million great games there’s one that has a very special place in my heart: Supreme Commander. It’s not the game I’ve played the most and there might even be games which are better and more fun but supcom was the game that introduced me to competitive gaming...
Willem's Blog
Influencing purchase behaviour
For my work I am continuously looking into scientific sources to improve e-commerce performance,...
over a year ago
For my work I am continuously looking into scientific sources to improve e-commerce performance, conversion rates and online revenue. Use this useful report to apply behavioural sciences principles to your advantage.
Willem's Blog
Swimming and cycling with Apple Watch
This month I tested the newest watchOS while swimming and cycling.
over a year ago
This month I tested the newest watchOS while swimming and cycling.
Jonas Hietala
Giving the blog a facelift
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed...
a year ago
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed me:
It wasn’t pretty (even ugly in some parts).
No dark mode support.
Some elements were broken, for instance images or code blocks overlapping the header when it was floating to the...
watchTowr Labs -...
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623)
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a week ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely.
Cleo have a...
Arduino Blog
Adding real-time local voice controls to a SMARS Quad Mod robot with an Arduino RP2040 Connect
Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools...
4 months ago
Robotics kits like the Screwless/Screwed Modular Assemblable Robotic System (SMARS) are great tools for learning more about how electronics, mechanics, and software can combine to perform useful tasks in the physical world. And in his latest project, Edge Impulse’s senior...
Engineers Need Art
Offline Advocate
Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of...
a month ago
Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of mind.
Willem's Blog
Rescuing photos from a crashed iMac
This week I attempted to recover two decades of personal photo history from a crashed iMac.
over a year ago
This week I attempted to recover two decades of personal photo history from a crashed iMac.
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