Willem's Blog
Creating a minimal iPhone stand
Today I created a minimal iPhone stand from oak wood. I used a single piece of wood to get it done.
over a year ago
Today I created a minimal iPhone stand from oak wood. I used a single piece of wood to get it done.
./techtipsy
Accidentally turning the ASRock DeskMini X300 into a semi-passively cooled PC
After playing around with fan curves on my ASRock DeskMini X300
based home server, I noticed one...
over a year ago
After playing around with fan curves on my ASRock DeskMini X300
based home server, I noticed one interesting thing. At least it was
interesting to me.
Background
I had one goal: to try to see if I could turn it into a semi-passive PC by only
turning the fan on when the PC was...
Louwrentius
'Gzip with parallel compression support: pigz'
The speed at which files are compressed with gzip is currently almost always
determined by the speed...
over a year ago
The speed at which files are compressed with gzip is currently almost always
determined by the speed of the CPU. However, standard unix gzip is single-
threaded and only uses a single CPU (core).
However, the maintainer of the zlib library has released 'pigz' or 'pig-zee'
whichs...
Notes on software...
Finding memory leaks in Postgres C code
This is an external post of mine. Click
here
if you are not redirected.
9 months ago
This is an external post of mine. Click
here
if you are not redirected.
Good Enough
TIL: JavaScript Turbo Stream Requests
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests...
a year ago
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests were not resulting in turbo_stream rendering getting displayed on my page. I checked my logs to see if the render was happening. I looked for missing <%= tags. Debugged and...
Jonas Hietala
An update on my book 'Why Cryptocurrencies?'
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to...
over a year ago
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to finish the book.
Sorry that’s a bit of a lie, I’ve had a nice long vacation where I didn’t work on the book and I’m also on part-time parental leave. And believe me there’s not a...
Jonas Hietala
Autocomplete with nvim-cmp
Autocomplete tags in the frontmatter.
Autocompletion is an absurdly powerful feature that I—and I...
7 months ago
Autocomplete tags in the frontmatter.
Autocompletion is an absurdly powerful feature that I—and I must assume most programmers—use all the time.
It’s not as crucial for writing blog posts as when you’re coding but it’s still easy to come up with examples of how autocomplete...
./techtipsy
Self-hosting Wikipedia using Kiwix
Do you have a need to host Wikipedia on your computer?
Or a StackExchange site, like Super...
over a year ago
Do you have a need to host Wikipedia on your computer?
Or a StackExchange site, like Super User?
It’s easier than you think!
Step 1: download stuff!
The Kiwix project provides ZIM files for many popular websites, including Wikipedia.
These files can be downloaded over at Kiwix...
Matt Mullenweg
Bezos at Dealbook
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew...
3 weeks ago
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew Ross Sorkin, but this one with Jeff Bezos was particularly good.
Arduino Blog
GLEWBOT scales buildings like a gecko to inspect wall tiles
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the...
7 months ago
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the windows are your house is a trivial chore, but cleaning the windows on a skyscraper is serious undertaking that needs specialized equipment and training. To make exterior wall...
Bryan Braun - Blog
Links #10
How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast...
5 months ago
How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast guest. It puts you in the shoes of a podcaster, showing you what they need, and how you can be a “sure thing” for them. As usual, there are no short cuts. You gotta do the work!
A...
Arduino Blog
It’s silver, it’s green, it’s the Batteryrunner! An Arduino-powered, fully custom electric car
Inventor Charly Bosch and his daughter Leonie have crafted something truly remarkable: a fully...
a month ago
Inventor Charly Bosch and his daughter Leonie have crafted something truly remarkable: a fully electric, Arduino-powered car that’s as innovative as it is sustainable. Called the Batteryrunner, this vehicle is designed with a focus on environmental impact, simplicity, and custom...
On Life and Lisp
OpenGL 3.1 on Asahi Linux
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost:...
a year ago
Upgrade your Asahi Linux systems, because your graphics drivers are getting a big boost: leapfrogging from OpenGL 2.1 over OpenGL 3.0 up to OpenGL 3.1! Similarly, the OpenGL ES 2.0 support is bumping up to OpenGL ES 3.0. That means more playable games and more functioning...
Arduino Blog
Make your scary Halloween pumpkin smart with the Plug and Make Kit!
With Halloween just around the corner, we’ve got the perfect project to make your decorations more...
2 months ago
With Halloween just around the corner, we’ve got the perfect project to make your decorations more fun and interactive. All you have to do is take the Arduino UNO R4 WiFi and Modulino nodes included in your Plug and Make Kit to create an awesome jack-o’-lantern that will light up...
Louwrentius
What home NAS builders should understand about silent data corruption
Introduction
When it comes to dealing with storage in a DIY NAS context, two important topics come...
over a year ago
Introduction
When it comes to dealing with storage in a DIY NAS context, two important topics come up:
Unrecoverable read errors (UREs) or what old people like me call 'bad sectors'
Silent data corruption (data corruption unnoticed by the storage layers)
I get a strong impression...
Home on Erik...
Optimizing for iteration speed
I've written before about the importance of iterating quickly but I didn't necessarily talk about...
over a year ago
I've written before about the importance of iterating quickly but I didn't necessarily talk about some concrete things you can do. When I've built up the tech team at Better, I've intentionally optimized for fast iteration speed above almost everything else.
Notes on software...
Picking up volleyball in NYC with Goodrec and New York Urban
I was so intimidated to go at first, but it is in fact easy and fun to
start playing beginner...
a week ago
I was so intimidated to go at first, but it is in fact easy and fun to
start playing beginner volleyball in New York. The people are so
friendly and welcoming that it has been easy to keep playing
consistently every week since I started for the first time this
August. It's been a...
Notes on software...
My favorite software subreddits
Originally published on December 5, 2021.
If you are an experienced software developer whose only...
a year ago
Originally published on December 5, 2021.
If you are an experienced software developer whose only exposure to
reddit is dank memes, proggit or even
language-specific subreddits like
/r/python, you're missing out.
What follows are my favorite subreddits in tech. My criteria is...
Arduino Blog
This robotic kalimba plays melodies with an Arduino Nano
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each...
3 months ago
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each tuned for a specific note, and upon plucking or striking one, a pleasant xylophone-like sound can be heard. Taking inspiration from his mini kalimba, Axel from the YouTube channel...
Computer Ads from...
Maxell's MF 2-DD Floppies
The Gold Standard
a month ago
Old Vintage...
The spawn of AtariLab and the Universal Lab Interface
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't...
a year ago
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't mean I was unaware of Atari 8-bits. There was a family at church who had an 800XL and later a 130XE — and a stack of COMPUTE!'s I used to read through for hours — and it was...
Computer Ads from...
1988 Interview Between Scott McNealy of Sun Microsystems and MicroTimes
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
6 months ago
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
OH8HUB’s Substack
A quick visit to Vaajasalo island
Vaajasalo is a small island in lake Kallavesi in eastern Finland with population less than hundred....
a year ago
Vaajasalo is a small island in lake Kallavesi in eastern Finland with population less than hundred. There’s also a winery called Alahovi Berry Wine Farm. They produce berry wines, cider, beer and liqueur. The temptation to visit them was huge, but I was on tight schedule. Maybe...
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...
Jonas Hietala
The 4-Hour Chef: Scrambled Eggs
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to...
over a year ago
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to make changes and start doing new things. I got introduced to Josh Waitzkin’s excellent The Art of Learning and the meta skill of learning has since then fascinated me. So when I got...
Old Vintage...
Virtualizing the 6502 on a 6502 with 6o6 (and The Incredible KIMplement goes 1.0)
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've...
8 months ago
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've intermittently worked on for literally two decades. Now that I've finally shaken out more bugs, tuned it up and cleaned it off, it's time to let people play with the source...
Willem's Blog
Monolithic vs Microservices software architecture
This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn...
over a year ago
This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn about choosing the right architecture for your app development
computers are bad
2024-10-26 buy payphones and retire
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress...
2 months ago
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress watches, AI-generated SEO spam websites... marginally
legal and ethical passive income schemes, that serve to generate that income
mostly for their promoters, can feel like a...
Matt Mullenweg
I Voted!
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a...
a month ago
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a last-minute flight to Houston and this morning walked over to Congregation Emanu El and voted. It is our most sacred duty as a citizen. I encourage every American to vote.
Louwrentius
Please use ZFS with ECC Memory
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a...
over a year ago
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a NAS. I would argue that if you do not use ECC memory, it's reasonable to also forgo on ZFS altogether and use any (legacy) file system that suits your needs.
Why ZFS?
Many people...
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...
Matt Mullenweg
UH Magazine, Revisiting My Alma Mater
My father attended University of Houston, and it’s where I went to college to study political...
2 weeks ago
My father attended University of Houston, and it’s where I went to college to study political science, I started WordPress when there, and then dropped out after two years to move to San Franisco. It was fun seeing UH Magazine feature an article about my journey from a University...
Abort Retry Fail
The History of Slackware
The Oldest Surviving Linux Distribution
a year ago
The Oldest Surviving Linux Distribution
Jonas Hietala
Entering Pintos
First week of school is over and it’s been full throttle from the start, in a good way. We’re having...
over a year ago
First week of school is over and it’s been full throttle from the start, in a good way. We’re having four courses and for once I like them all. We have an interesting math course, a useful course “Software Development in Theory” (boring but useful) and a big project course where...
Simply Explained
Make Your Garage Door Opener Smart: Shelly 1, ESPHome and Home Assistant
I've been adding more and more devices to my smart home lately, so naturally, my garage door opener...
over a year ago
I've been adding more and more devices to my smart home lately, so naturally, my garage door opener had to follow. But instead of swapping it out for a new unit, I used a Shelly 1 and a cheap door contact sensor to make it smart for less than $20!It runs ESPHome (open-source, no...
Vitalik Buterin's...
What do I think about Community Notes?
a year ago
Abort Retry Fail
The History of Windows 2.0
Success and Litigation
a year ago
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"}'...
./techtipsy
Strangling your service with a Kubernetes misconfiguration
This is a quick story about a fun discovery that I made a while ago.
For legal reasons, all of this...
over a year ago
This is a quick story about a fun discovery that I made a while ago.
For legal reasons, all of this is made up and no such service ever existed.
Once upon a time, we had this Java service that handled all the backend
work that you’d expect to occur for a product with a web...
Computer Ads from...
Oberon International' Omni-Reader
Audio Engineers announce a revolution in taking words from page to your computer
2 weeks ago
Audio Engineers announce a revolution in taking words from page to your computer
Home on Erik...
Predicting solar eclipses with Python
As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute...
9 months ago
As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute eclipses in Python. It turns out, ignoring some minor coordinate system head-banging, I was able to get something half-decent working in a couple of hours.
Home on Erik...
Annoy 1.10 released, with Hamming distance and Windows support
I've been a bit bad at posting things with a regular cadence lately, partly because I'm trying to...
over a year ago
I've been a bit bad at posting things with a regular cadence lately, partly because I'm trying to adjust to having a toddler, partly because the hunt for clicks has caused such a high bar for me that I feel like I have to post something Pulitzer-worthy.
Abort Retry Fail
The History of Red Hat
The Billion Dollar Open Source Company
a year ago
The Billion Dollar Open Source Company
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
Debian Linux Preseeding - an installation framework
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully...
over a year ago
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully operational
system is fun. PXE boot and preseeding is not enough however to accomplish
this.
By itself, preseeding only installs a basic operating system. Next, you need
to configure all sorts of...
Home on Erik...
Running Theano on EC2
Inspired by Sander Dieleman's internship at Spotify, I've been playing around with deep learning...
over a year ago
Inspired by Sander Dieleman's internship at Spotify, I've been playing around with deep learning using Theano. Theano is this Python package that lets you define symbolic expressions (cool), does automatic differentiation (really cool), and compiles it down into bytecode to run...
Willem's Blog
Cash is king, or is it?
Is the time right to ditch the wallet?
over a year ago
Is the time right to ditch the wallet?
GitButler
GitButler for Windows
The GitButler client is now available natively on Windows.
8 months ago
The GitButler client is now available natively on Windows.
Style over Substance
How to build your own Goodman ZONE camera, part 2
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her...
over a year ago
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her range of open-source camera models, using the existing Mamiya Press lens series for glass and the Mamiya RB67 backs to hold film. She sells pre-printed kits that contain all the...
watchTowr Labs
Where There’s Smoke, There’s Fire - Mitel MiCollab CVE-2024-35286, CVE-2024-41713 And An 0day
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't...
4 weeks ago
It is not just APTs that like to target telephone systems, but ourselves at watchTowr too.
We can't overstate the consequences of an attacker crossing the boundary from the 'computer system' to the 'telephone system'. We've seen attackers realise this in 2024,
Vitalik Buterin's...
Layer 1 Should Be Innovative in the Short Term but Less in the Long Term
over a year ago
watchTowr Labs
No Way, PHP Strikes Again! (CVE-2024-4577)
Orange Tsai tweeted a few hours ago about “One of [his] PHP vulnerabilities, which affects XAMPP by...
7 months ago
Orange Tsai tweeted a few hours ago about “One of [his] PHP vulnerabilities, which affects XAMPP by default”, and we were curious to say the least. XAMPP is a very popular way for administrators and developers to rapidly deploy Apache, PHP, and a bunch of other tools, and
Vitalik Buterin's...
[Mirror] Quadratic Arithmetic Programs: from Zero to Hero
over a year ago
Posts on Made of...
Indices point between elements
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a...
over a year ago
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this:
In this post, I want to persuade you to replace that image, or,...
seangoedecke.com RSS...
Porting and hacking Llama2.c for fun and profit
Over the last few weeks I’ve been playing around with the excellent llama2.c repository, which is...
a year ago
Over the last few weeks I’ve been playing around with the excellent llama2.c repository, which is basically a simple one-file C…
Neil Madden
Parse, don’t type-check
There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to...
over a year ago
There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to any programmer (along with the more recent follow up Names are not type safety). The basic idea is that there are two ways to check that some input to a function is valid: A...
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...
Posts on Made of...
Disable Transparent Hugepages
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making...
over a year ago
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making more efficient use of your processor’s memory-mapping hardware. It is enabled ("enabled=always") by default in most Linux distributions.
Transparent Hugepages gives some applications...
Willem's Blog
Your own addressbook and calendar cloud
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data...
over a year ago
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data and share it between your devices.
On Life and Lisp
Conformant OpenGL 4.6 on the M1
For years, the M1 has only supported OpenGL 4.1. That changes today –
with our release of full...
10 months ago
For years, the M1 has only supported OpenGL 4.1. That changes today –
with our release of full OpenGL® 4.6 and OpenGL® ES 3.2! Install Fedora for the latest
M1/M2-series drivers.
Already installed? Just dnf –refresh
upgrade.
Unlike the vendor’s non-conformant 4.1 drivers, our...
Jonas Hietala
Balls
Here’s my first ever experimental game! The theme was Addictive Gaming. My first thought was oh god...
over a year ago
Here’s my first ever experimental game! The theme was Addictive Gaming. My first thought was oh god I’ll be making another tetris clone but the end result turned out a bit different. I’m not sure it’s very addictive but it’s actually okay! =D
Balls is a game about… balls. Well...
Nabeel S. Qureshi
Reading Notes on “Lost Time: Lectures on Proust in a Soviet Prison Camp”
by Josef Czapski
over a year ago
Applied Cartography
Linear
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes...
2 weeks ago
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes I wanted to publish on our own experience of migrating from GitHub Issues to Linear, and some reflections on it as a product now that we've been using it for a few months.
One...
Matt Mullenweg
CNBC on WP Engine
Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP...
2 months ago
Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP Engine: Why WordPress [co-]founder Matt Mullenweg has gone ‘nuclear’ against tech investing giant Silver Lake.
Notes on software...
Exploring a Postgres query plan
I learned this week that you can intercept and redirect Postgres query
execution. You can hook into...
a year ago
I learned this week that you can intercept and redirect Postgres query
execution. You can hook into the execution layer so you're given a
query plan and you get to decide what to do with it. What rows to
return, if any, and where they come from.
That's very interesting. So I...
Jonas Hietala
A Simple Thought
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about...
over a year ago
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about that yesterday and I was very, very nervous. The preparations weren’t that hard, but they where very bothersome. Converting the instructions to binary/hex by hand is never nice....
Applied Cartography
Things take time
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi...
8 months ago
Things take time.
Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi Nintendo & Co., LTD — was established nearly fifty years later, in 1933. They spent forty years selling playing cards, then another decade operating merely as a distributor of...
Posts on Made of...
Two Perspectives on the End-to-End Principle
Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read...
over a year ago
Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read numerous classic papers of systems design. I enjoyed and learned a great deal from many of these papers, but one that paper that has stuck with me in particular was Saltzer et al’s...
Vitalik Buterin's...
The promise and challenges of crypto + AI applications
11 months ago
Matt Mullenweg
Michael Palmisano on Collier
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on...
2 months ago
I’ve been obsessed with Jacob Collier since I first saw his Don’t You Worry ‘Bout A Thing cover on YouTube, and one of my favorite genres of videos is genius musicians breaking down the incredible musical stuff Jacob is doing. (He even has his own instrument now.) This reaction...
Engineers Need Art
Mooncraft 2000
A web-based game, Mooncraft 2000 is released.
over a year ago
A web-based game, Mooncraft 2000 is released.
Jonas Hietala
What's up
It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other...
over a year ago
It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other stuff. I’ve thought about you but I just never really picked up emacs to write to you. I know it’s my fault but I beg of your mercy mr. Blog. You know that I had laid off school for...
Willem's Blog
WordPress: 10 tips to secure your website
A lot of people use WordPress to manage their website. Prevent your site from being hacked using...
over a year ago
A lot of people use WordPress to manage their website. Prevent your site from being hacked using this blog post.
Louwrentius
Script that deletes old files to keep disk from filling up
When a disk has no free space left, all kinds of trouble can occur.
Therefore, I've created a...
over a year ago
When a disk has no free space left, all kinds of trouble can occur.
Therefore, I've created a script that monitors the used space of a volume
and deletes the oldest file if a certain threshold is reached.
The script will keep on deleting the oldest file present on disk until...
Louwrentius
Achieving 220 MB/s network file transfers using Linux Bonding
I wrote an article about the subject of getting beyond the limits of gigabit network file transfers....
over a year ago
I wrote an article about the subject of getting beyond the limits of gigabit network file transfers. My solution is to use multiple gigabit network cards and use Linux interface bonding to create virtual 2 gigabit network interfaces. The solution is to use mode 0 or round robin...
Louwrentius
Why VMware vSphere replication is changing the game
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller...
over a year ago
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller setups, many people do employ multiple VMware hosts, but the SAN is a single point of failure.
SANs are often fully redundant devices, with redundant PSUs, storage controllers,...
Louwrentius
Thunderbolt, a cheap high-speed storage interconnect?
Intel and Apple released Thunderbolt a high-speed (10 Gigabit/s) interface, that seems to replace...
over a year ago
Intel and Apple released Thunderbolt a high-speed (10 Gigabit/s) interface, that seems to replace both USB and Firewire. It is mainly targeted at end-user systems allowing to connect peripherals with just a single cable to a computer. Thunderbolt devices, like external hard...
Notes on software...
Delightful, production-grade replication for Postgres
This is an external post of mine. Click
here
if you are not redirected.
5 months ago
This is an external post of mine. Click
here
if you are not redirected.
Willem's Blog
Hello, stranger
"Discover the transformative power of simple conversations in our tech-dominated world, as one...
a year ago
"Discover the transformative power of simple conversations in our tech-dominated world, as one individual delves into the lost art of talking to strangers and the profound connections it can forge."
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...
Posts on Made of...
Exploiting misuse of Python's "pickle"
If you program in Python, you’re probably familiar with the pickle serialization library, which...
over a year ago
If you program in Python, you’re probably familiar with the pickle serialization library, which provides for efficient binary serialization and loading of Python datatypes. Hopefully, you’re also familiar with the warning printed prominently near the start of pickle’s...
Electronics etc…
Installing Linux GPIB Drivers for the Agilent 82357B
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the...
a year ago
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the Agilent 82357B GPIB Driver on an Ubuntu Linux Distribution
References
Introduction
I’ve started to grow a collection of older test equipment from the eighties, the
nineties, and the...
Jonas Hietala
My MCU movie ranking
I did the MCU Movie Re-Watch again this year in preparation for Avengers: Endgame. I wasn’t a huge...
over a year ago
I did the MCU Movie Re-Watch again this year in preparation for Avengers: Endgame. I wasn’t a huge MCU fan before doing the same re-watch for Infinity War, but after that I became one.
For fun I tried to rank the movies as I saw them, this is some sort of accounting my rankings...
./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...
Willem's Blog
Collecting health data with Biostrap
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.
over a year ago
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.
Applied Cartography
Projects are things with steps
Lots of kind words poured in as a response to My approach to GTD and PKM, and one question was asked...
2 months ago
Lots of kind words poured in as a response to My approach to GTD and PKM, and one question was asked so frequently that I decided to write about it.
Why is “Get mom a birthday present” a project and not a task?
GTD is very orthodox in what a “project” is: it’s anything that:
you...
Vitalik Buterin's...
[Mirror] A Proof of Stake Design Philosophy
over a year ago
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,...
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
10 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Arduino Blog
Build Button Clash in minutes: a new fun game with Plug and Make Kit
The Arduino Plug and Make Kit is all about turning creative sparks into reality in mere minutes....
a month ago
The Arduino Plug and Make Kit is all about turning creative sparks into reality in mere minutes. With its intuitive, snap-together design, even the wildest ideas become achievable – fast, fun, and frustration-free. That’s exactly what Julián Caro Linares, Arduino’s Product...
Posts on Made of...
Using Haskell's 'newtype' in C
A common problem in software engineering is avoiding confusion and errors when dealing with multiple...
over a year ago
A common problem in software engineering is avoiding confusion and errors when dealing with multiple types of data that share the same representation. Classic examples include differentiating between measurements stored in different units, distinguishing between a string of HTML...
./techtipsy
Tech tip: eliminate HDD humming noise
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are...
over a year ago
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are probably familiar
with the acoustic characteristics of the drives. The drives have a loud hum caused
by WD running the drives at 7200rpm while claiming the drives to be...
Jonas Hietala
Let's build a VORON: Build start
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was...
a year ago
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was suddenly very important that I got myself a 3D printer.
Maybe it was an important insight, but it maybe it was only a fix idea I got that somehow became this all-import...
Home on Erik...
Presentation about Luigi
I like the editing!
over a year ago
Vitalik Buterin's...
What else could memecoins be?
9 months ago
Computer Ads from...
Comics from 1982/08 Commodore Computing International Mag
Time for some humor
5 months ago
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
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:
Notes on software...
Writing a simple JSON parser
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format...
over a year ago
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format is extremely simple. It's defined
recursively so you get a slight challenge compared to, say, parsing
Brainfuck; and you probably
already use JSON. Aside from that last point,...
Arduino Blog
An ultra-affordable DIY underwater ROV
ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by...
7 months ago
ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by the possibilities. But traditional ROVs cost a lot of money and often require serious expertise to operate and maintain. Luckily there are affordable alternatives, such as this...
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...
Notes on software...
The world of PostgreSQL wire compatibility
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.
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...
4 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...
Matt Blewitt
Death, and Utsuge
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and...
2 months ago
This post discusses topics some may wish to avoid: terminal illness, hospice care, death, and Japanese visual novels.
Applied Cartography
Bozos
Kevin Twohy has a list of heuristics for new projects/clients, and my favorite is simple:
No Bozos....
2 months ago
Kevin Twohy has a list of heuristics for new projects/clients, and my favorite is simple:
No Bozos. Simple policy. No exceptions. You know it when you see it.
Every founder has a story about the time that they ignored the red flags and bent over backwards for a particularly...
Willem's Blog
Riding with Omata One
If you're looking for an alternative for common cycling computers, the Omata One is something truely...
over a year ago
If you're looking for an alternative for common cycling computers, the Omata One is something truely special: it indicates your speed, distance, ascent and time ridden using mechanical hands!
Arduino Blog
Deploy your smart meeting room management system with Arduino GIGA
Managing shared spaces, especially meeting rooms, can be a headache in busy offices. At Arduino,...
2 weeks ago
Managing shared spaces, especially meeting rooms, can be a headache in busy offices. At Arduino, we’ve experienced it firsthand in our flexible and dynamic offices around the world – where colleagues could often be seen wandering around with their laptops, trying to find a quiet...
Louwrentius
Setting up a Jabber instant messaging server |_http-title: Site doesn't have a title (text/html;...
I wanted to see how dificult it is to setup an instant messaging server based on open source...
over a year ago
I wanted to see how dificult it is to setup an instant messaging server based on open source software. Now I know that it is very easy, unless you are stubborn and do things your own way. In this example, I'm setting up a small IM server that is only for internal company use, but...
Arduino Blog
CapibaraZero: a student’s journey in reinventing hacking tools with Arduino
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a...
a month ago
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a multifunctional security and hacking tool developed by young innovator Andrea Canale. Inspired by the popular Flipper Zero, a portable device used to interact with digital systems, Canale...
Avestura's Blog
Versioning microservices in GitLab monorepos and polyrepos
What are some possible options to version projects for a microservices project in Gitlab?
over a year ago
What are some possible options to version projects for a microservices project in Gitlab?
computers are bad
2023-04-10 solving problems with chatgpt
One of the foundational goals of computer technology, at least as understood by
popular culture, is...
a year ago
One of the foundational goals of computer technology, at least as understood by
popular culture, is to automate away our jobs. When your job is (put simply) to
get computers to work correctly, there's sort of an irony to this view of
things. Still, just within the span of my...
Louwrentius
Why filtering DHCP traffic is not always possible with iptables
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all...
over a year ago
When configuring my new firewall using iptables, I noticed something very
peculiar. Even if all input, forward and output traffic was dropped, DHCP
traffic to and from my DHCP server was not blocked even if there were no
rules permitting this traffic.
I even flushed all rules,...
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...
Home on Erik...
The power of ensembles
From my presentation at MLConf, one of the points I think is worth stressing again is how extremely...
over a year ago
From my presentation at MLConf, one of the points I think is worth stressing again is how extremely well combining different algorithms works.
In this case, we're training machine learning algorithms on different data sets (playlists, play counts, sessions) and different...
Louwrentius
The sorry state of CoW file systems
I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks...
over a year ago
I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks and that it may still be a long way off before we have something truly great.
Both ZFS and BTRFS are two heroic feats of engineering, created by people who are probably ten times...
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:...
GitButler
GitButler 0.12 - "Stingy Baker"
New GitButler release is out! Undo anything, modify your commits with ease, new AI stuff and more!
7 months ago
New GitButler release is out! Undo anything, modify your commits with ease, new AI stuff and more!
Louwrentius
ZFS RAIDZ expansion is awesome but has a small caveat
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The...
over a year ago
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The Github PR about this feature is rather stale and people are wondering what the status is and what the plans are. Meanwhile, FreeBSD has announced In February 2023 that they...
Simply Explained
Tracking gas usage with ESPHome, Home Assistant, and TCRT5000
In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home...
over a year ago
In 2019, I built an energy monitor to keep track of our electricity consumption. Then, in 2021, Home Assistant added an Energy Management feature that keeps track of electricity and gas usage. So naturally, I had to make my gas meter smart as well.
./techtipsy
The IKEA-powered homelab on a wall
I recently learned about the IKEA SKÅDIS series, which is a
pegboard that supports a variety of...
a year ago
I recently learned about the IKEA SKÅDIS series, which is a
pegboard that supports a variety of extras. During my self-hosting journey having to figure out the best
place for putting all my compute stuff to has always been at the back of my mind, especially due to limited...
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features.
I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Home on Erik...
Why software projects take longer than you think: a statistical model
Anyone who built software for a while knows that estimating how long something is going to take is...
over a year ago
Anyone who built software for a while knows that estimating how long something is going to take is hard. It's hard to come up with an unbiased estimate of how long something will take, when fundamentally the work in itself is about solving something.
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...
Notes on software...
An effective product manager
There are three specific activities I have loved in some product
managers I've worked with (and...
a year ago
There are three specific activities I have loved in some product
managers I've worked with (and missed in others).
tldr;
Talk with customers and prospects
Develop and share a vision
Evangelize
Talk with customers and prospects
As a product manager, your superpower over...
Jonas Hietala
Breaking the rule of three
It’s pretty darn stressful making a game in a week, especially when you have this big great vision...
over a year ago
It’s pretty darn stressful making a game in a week, especially when you have this big great vision on how your game should be (which is always grand). For me making Balls, Black and White and Jonas IceCream Stand where truly stressful, MenuCity and Bugger not so much but...
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.
./techtipsy
Disabling the crappy Broadcom Bluetooth adapter in your ThinkPad T430 running Linux
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a...
over a year ago
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a better adapter like the
Intel Dual Band Wireless-AC 7260,
and found that Bluetooth is not working as intended on your ThinkPad T430
running Linux?
Here’s a guide on what you can...
Jonas Hietala
I designed my own keyboard layout. Was it worth it?
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I...
a year ago
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I tried out existing ones, but it didn’t take long before I figured it’s better to develop my own—and things went downhill fast from there.
(Some) combos of the T-34 layout.
But now...
Applied Cartography
Are monopolies bad, actually?
One of the more interesting theses advanced by Zero to One [1] is that monopolies are good to the...
9 months ago
One of the more interesting theses advanced by Zero to One [1] is that monopolies are good to the extent that they afford companies the agency and comfort to engage in long-term activities:
Monopolists can think about things other than making money; non-monopolists can’t. In...
Louwrentius
Setup a VPN on your iPhone with OpenVPN and Linux
⚠️ 🚨 Update 2024 🚨⚠️
I'm not using OpenVPN anymore for my VPN needs and this article is considered...
over a year ago
⚠️ 🚨 Update 2024 🚨⚠️
I'm not using OpenVPN anymore for my VPN needs and this article is considered unmaintained.
It's stronly recommended not to use this tutorial and find up-to-date documentation.
I also have no plans to update this blogpost in the future.
[Update 2018]
This...
Yazin Alirhayim
Serializing and deserializing a Cookie Jar
I was recently working on a way to serialize and deserialize a Faraday connection that uses...
over a year ago
I was recently working on a way to serialize and deserialize a Faraday connection that uses HTTP::CookieJar to manage persistent cookies across requests.
I needed to do this because I wanted a way to “freeze” an HTTP connection instance, and later “thaw” it to resume the...
Bryan Braun - Blog
Unusual Git IDs
You can search Github for unusual commit IDs:
There are over 2k commits starting with...
a month ago
You can search Github for unusual commit IDs:
There are over 2k commits starting with 0000000!
While looking for commits like these, I started to become suspicious that people were intentionally modifying their commits IDs to be unusual:
A commit ID of eeeeeee, with a message...
Old Vintage...
The Hall SC-VGA-2 video processor, the Atari ST and NeXTSTEP: more tales of the unscreenshotable
A periodic fascination on this blog is figuring out better ways to get better screenshots of our...
a month ago
A periodic fascination on this blog is figuring out better ways to get better screenshots of our classic systems, which often hail from the Wild Wild West/East in terms of video standards (read all entries in this series). Naturally the best way is a bitwise direct grab of the...
Computer Ads from...
Small Systems Engineering's PETSPEED
Fast Enough for the Human Race
5 months ago
Fast Enough for the Human Race
Posts on Made of...
reptyr: Changing a process's controlling terminal
reptyr (announced recently on this blog) takes a process that is currently running in one terminal,...
over a year ago
reptyr (announced recently on this blog) takes a process that is currently running in one terminal, and transplants it to a new terminal. reptyr comes from a proud family of similar hacks, and works in the same basic way: We use ptrace(2) to attach to a target process and force...
./techtipsy
Zimaboard: the closest thing to my dream home server setup
I stumbled upon this Hardware Haven video about the Zimaboard recently.
I liked it a lot.
I finally...
a year ago
I stumbled upon this Hardware Haven video about the Zimaboard recently.
I liked it a lot.
I finally bought one.
In short, Zimaboard is a small single-board computer that is relatively affordable and comes
with an interesting selection of ports, which includes an exposed PCI...
Yazin Alirhayim
Part 2: Will greater access to capital spark Bahrain’s economy?
👉 If you haven’t read Part 1, do that first.
In the last post, I discussed the question of access...
over a year ago
👉 If you haven’t read Part 1, do that first.
In the last post, I discussed the question of access to capital and why’s important to verify that we do in fact have a problem before we attempt to “solve” it.
Now, we’re going to talk about the method for measuring the extent of...
Jonas Hietala
Postmortem: Beebop The Island Hopper
So I participated in the Ludum Dare for the first time and this is a postmortem of my game Beebop...
over a year ago
So I participated in the Ludum Dare for the first time and this is a postmortem of my game Beebop The Island Hopper for the theme Islands.
About Ludum Dare
Ludum Dare is a competition which runs maybe two times a year and the competition is 24 hours long with a specific theme....
Christian Selig
Server side Live Activities guide
iOS 17.2 gained the capability to start Live Activities from a server, which is pretty cool and...
3 months ago
iOS 17.2 gained the capability to start Live Activities from a server, which is pretty cool and handy! I’ve been playing around with it a bit and found some parts a bit confusing, so I thought I’d do a little write up for future me as well as anyone else who could benefit!
(For...
./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...
Style over Substance
DIY: Use an IKEA VINDRIKTNING air quality sensor in Home Assistant with ESPHome
IKEA has released some interesting new products lately, focused on air quality. In this product...
over a year ago
IKEA has released some interesting new products lately, focused on air quality. In this product line, one unit that stands out is the VINDRIKTNING air quality sensor. This cheap (just €9,99) sensor measures the air quality in your home, using a simple traffic light scheme to...
Birchtree
When do the Trump flags come down? (members post)
The flags are still flying, celebrating the man, not the country. Why is this something that happens...
3 weeks ago
The flags are still flying, celebrating the man, not the country. Why is this something that happens now, and why is it something only happening on one end of the political spectrum?
Willem's Blog
Six months with MCADD
It's six months since our son was born with MCADD, a good moment to reflect upon the experience of...
over a year ago
It's six months since our son was born with MCADD, a good moment to reflect upon the experience of being a parent with some thoughts and tips.
Jonas Hietala
2013 Read Books
I actually read more books in 2013 than in 2012.
In a somewhat unorganized list:
Fiction
Livet...
over a year ago
I actually read more books in 2013 than in 2012.
In a somewhat unorganized list:
Fiction
Livet Deluxe - Jens Lapidius
Escape from camp 14 - Blaine Harden
Wonderful. A great book.
Edge - Jeffery Deaver
Dollar - Lee Child
Gisslan - Lee Child
Bränd - Lee Child
Besökaren - Lee...
Willem's Blog
The Problem With Bitcoin
Some thoughts on the long term viability of Bitcoin's rising value.
3 weeks ago
Some thoughts on the long term viability of Bitcoin's rising value.
Good Enough
Season 3, Issue 4: Cosmic Staggering Tortoises
1. Weekly Studio Update
Hello. We're going to try doing this newsletter thing regularly. The...
a year ago
1. Weekly Studio Update
Hello. We're going to try doing this newsletter thing regularly. The ambitious goal is to write you a lovely letter every week. Aim for the moon, right? But wait, if you aim for the moon, how in this physical world can you possibly hit a star by...
Arduino Blog
Check out these Arduino-powered research projects from CHI 2024
Held in Hawaii this year, the Association of Computing Machinery (ACM) hosted its annual conference...
7 months ago
Held in Hawaii this year, the Association of Computing Machinery (ACM) hosted its annual conference on Human Factors in Computing Systems (CHI) that focuses on the latest developments in human-computer interaction. Students from universities all across the world attended the...
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
Why should a company?
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my...
9 months ago
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my first paying customer so I know it's not a fake product"; "I want to hit a thousand dollars in revenue so I know it's not just friends humoring me"; "I want to make $10K/mo or else I...
Lighthouse Blog
Introducing Lighthouse - The RSS reader, newsletter reader, and read-it-later app to fight content...
9 months ago
Willem's Blog
Traffic shaping using iptables and tc
This month I responded to an automated alert indicating excessive bandwidth usage on a server,...
over a year ago
This month I responded to an automated alert indicating excessive bandwidth usage on a server, requiring me to apply traffic shaping to mitigate the traffic.
Home on Erik...
Annoy – now without Boost dependencies and with Python 3 Support
Annoy is a C++/Python package I built for fast approximate nearest neighbor search in high...
over a year ago
Annoy is a C++/Python package I built for fast approximate nearest neighbor search in high dimensional spaces. Spotify uses it a lot to find similar items. First, matrix factorization gives a low dimensional representation of each item (artist/album/track/user) so that every item...
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...
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
Notes on software...
Running SQL Server in a container on Github Actions
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Lighthouse Blog
How to combine multiple RSS feeds in one view
7 months ago
Louwrentius
Why security is all about defense in depth
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing...
over a year ago
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing could be further from the truth. Keeping your systems up-to-date only protects you against exploits for publicly known vulnerabilities.
Your systems are still not protected...
Jonas Hietala
Writing a Pollen lexer in Pygments
After writing a few blog posts about Pollen I started getting annoyed that I didn’t have syntax...
over a year ago
After writing a few blog posts about Pollen I started getting annoyed that I didn’t have syntax highlighting for the code snippets. So I did a bit of fooling around with Pygments, and it turns out writing a custom lexer isn’t that unreasonable, so here’s how I did it.
Pollen...
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.
Ian's Blog
What the heck is OCSP?
The online certificate status protocol, or OCSP for short, is a way for TLS clients (like your web...
over a year ago
The online certificate status protocol, or OCSP for short, is a way for TLS clients (like your web browser) to check if a certificate has been revoked or not.
Certificate Revocation?
With asymmetrical encryption, your encryption is only as good as long as your private key remains...
Jonas Hietala
Top ten activities that make me happy
Recently we finally moved out of our old apartment and into a new larger apartment and it’s awesome....
over a year ago
Recently we finally moved out of our old apartment and into a new larger apartment and it’s awesome. It’s no more than a year old and feels very fresh compared to the old one. It’s also larger with an extra room, dishwasher (!) and closer to the city centrum and everything is...
Home on Erik...
Leaving Spotify
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an...
over a year ago
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an amazing experience.
I joined Spotify in Stockholm in 2008, mainly because a bunch of friends from programming competitions had joined already.
Matt Blewitt
Unreasonably Effective Patterns
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data...
over a year ago
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data services. This post explores three patterns used to reduce operational burden and increase system safety and resiliency: state machines (and associated state-transition tables),...
Willem's Blog
My first weeks as dad
Last Christmas my wife gave birth of our son. It's a life changing experience to become a parent....
over a year ago
Last Christmas my wife gave birth of our son. It's a life changing experience to become a parent. Read along for my (biometric) findings and some practical tips.
Notes on software...
One year as a solo dev building open-source data tools without funding
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.
Neil Madden
Newsletter
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably...
12 months ago
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably exploring a few topics around AI and philosophy. If you’d prefer some more technical content around security and cryptography, then take a look at the newsletter I put out for my...
Vitalik Buterin's...
Prediction Markets: Tales from the Election
over a year ago
Jonas Hietala
Resurrection
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not...
over a year ago
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
Notes on software...
Notes on running Electron
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Jonas Hietala
Ludum Dare 29 Entry
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally...
over a year ago
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally unprepared, but I did setup a setup which actually compiles. I never got audio to run but hopefully I can manage something.
Repository: https://github.com/treeman/LD29. Going for C++ this...
Home on Erik...
Optimizing over multinomial distributions
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 +...
over a year ago
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 + ldots + w_n = 1 $$ and $$ 0 le w_i le 1 $$ . Usually, $$ f $$ is concave and differentiable, so there's one unique global maximum and you can solve it by applying gradient ascent.
Vitalik Buterin's...
A Prehistory of the Ethereum Protocol
over a year ago
./techtipsy
I looked at this site on the Wayback Machine
Yesterday was election day in Estonia and the results are in, which is why
I remembered that one...
a year ago
Yesterday was election day in Estonia and the results are in, which is why
I remembered that one time I looked at my website on the Wayback Machine.
This domain used to point to a Wordpress site that hosted
content for a candidate in the local elections,
at least around...
./techtipsy
Quest towards energy efficiency part 1: the water heater
While listening to the SelfHosted podcast, one of the hosts brought up their peculiar...
over a year ago
While listening to the SelfHosted podcast, one of the hosts brought up their peculiar living
arrangement multiple times. Essentially, he and his family are living in an RV that runs off of batteries, has solar
panels, utilizes Home Assistant for automation, supports multiple...
Arduino Blog
7 powerful ways to integrate Collaborative Coding into education with the Arduino Cloud
Collaborative coding in education can be a game-changer for students, providing them with real-world...
2 months ago
Collaborative coding in education can be a game-changer for students, providing them with real-world skills in communication, teamwork, and problem-solving. With the new collaborating coding feature of the Arduino Cloud, students can collaborate in real time on coding projects,...
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...
Computer Ads from...
Creative Computer Publishes Interview with the Guy Behind the Death Star Trench Run (1978)
An Interview With Star Wars Animator Larry Cuba
8 months ago
An Interview With Star Wars Animator Larry Cuba
latest projects -...
3D Model Viewer Improvements
[Software] Unlocking the embedded gimbals
a year ago
[Software] Unlocking the embedded gimbals
Arduino Blog
Team Ikaro scores success with the Arduino Nano RP2040 Connect!
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in...
3 months ago
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in Rome, sharing a strong passion for electronics and turning heads in the world of robotics! Specializing in Soccer Lightweight games (where robot-soccer players compete to score goals...
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...
What MongoDB got Right
MongoDB is perhaps the most-widely-mocked piece of software out there right now.
While some of the...
over a year ago
MongoDB is perhaps the most-widely-mocked piece of software out there right now.
While some of the mockery is out-of-date or rooted in misunderstandings, much of it is well-deserved, and it’s difficult to disagree that much of MongoDB’s engineering is incredibly simplistic,...
Odds and Ends of...
Odds and Ends #49: How bat protection regulations broke Britain's planning system
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should...
4 days ago
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should visit Jimmy Carter's hometown.
Vitalik Buterin's...
An approximate introduction to how zk-SNARKs are possible
over a year ago
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.
2 months ago
A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
Jonas Hietala
A Christmas Game
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly...
over a year ago
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly one thing on my wishlist for this christmas for my little brother: Ticket to Ride: Nordic Countries. Guess what? I got something from my wishlist!
This was our 5th or 6th game (or...
Opsbros
Pro-tip for Baristas
If you've ever filled one of those 'Cheeki' coffee cups, or virtually any other reusable coffee cup,...
over a year ago
If you've ever filled one of those 'Cheeki' coffee cups, or virtually any other reusable coffee cup, you've definitely come across the issue that when it's 'overfilled' it will overflow when the lid is put back on. There is a
Opsbros
The past lives again!
I found a GameBoy Camera for my GBC and thought it'd be a good idea to extract the photos from eons...
over a year ago
I found a GameBoy Camera for my GBC and thought it'd be a good idea to extract the photos from eons ago and bring them to the era of the internet.
Arduino Blog
The Club Master is a Nano RP2040 Connect-powered device that improves your golf swing
When playing golf, few things are as important as using the correct form when swinging, since even...
7 months ago
When playing golf, few things are as important as using the correct form when swinging, since even small deviations can be the difference between a hole-in-one and additional strokes. To improve his game, Concept Bytes has designed a small clip-on device called the “Club Master.”...
Arduino Blog
This miniature monorail stays upright with the help of gyro stabilization
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is...
4 months ago
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is actually a very wide beam. The car’s load tires (often literal truck or trailer tires) roll on top of that beam and guide tires clamp the sides of the beam, preventing the car from...
Avestura's Blog
Hiding a photo inside another photo
How to hide a small photo inside a larger photo?
over a year ago
How to hide a small photo inside a larger photo?
Birchtree
How Flight Simulator helped my flying anxiety (members post)
It turns out video games really can impact how you view the world.
3 weeks ago
It turns out video games really can impact how you view the world.
Notes on software...
Let's build a distributed Postgres proof of concept
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies...
over a year ago
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies that do a lot of work: a
PostgreSQL wire protocol
implementation, a storage
layer, a Raft implementation
for distributed consensus. And not
part of go.mod but still building on 3rd...
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian
I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
6 months ago
I use note-taking software every day. I use it for journaling, blogging, capturing ideas, researching technologies, managing my projects, and many other things. Writing is how I think through problems, and note-taking software makes all that thinking easy to search and...
Posts on Made of...
Why the Sorbet typechecker is fast
This is the second in an indefinite series of posts about things that I think went well in the...
over a year ago
This is the second in an indefinite series of posts about things that I think went well in the Sorbet project. The previous one covered our testing approach.
Sorbet is fast. Numerous of our early users commented specifically on how fast it was, and how much they appreciated this...
Jonas Hietala
Long Term Goals (part 2)
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major...
over a year ago
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major goals I have:
Write my own Programming Language
Why? Because it sounds fun and epic as hell.
Write a Book
So I like books and I like to collect them and I have my whole bookcase...
Jonas Hietala
I beat FTL on Hard with all ships in the game
For 2023 I wanted to do something different than usual—I wanted to start playing computer games...
a year ago
For 2023 I wanted to do something different than usual—I wanted to start playing computer games again.
So I gave myself a late Christmas gift and bought a Steam Deck (and like any self-serving gentleman I took care to pitch it as being for my kids) and I started loading it up...
Jonas Hietala
September theme: Failure
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon...
over a year ago
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon I hope and again I’m following Experimental Gameplay Project’s site.
Let’s rock!!
Good Enough
TIL: Managing Raspberry Pi software with a bit less pain
For the printer project I'm working on, most of the software behind it runs "in the cloud", but...
a year ago
For the printer project I'm working on, most of the software behind it runs "in the cloud", but there's some software that needs to run beside each printer, to check for new things to print and manage the process of downloading and sending those things to the printer component...
Willem's Blog
Refining my tablet OS experience
Installing Debian GNU/Linux on a Surface Go 2 with LTE/4G to replace my iPad Pro as daily driver.
over a year ago
Installing Debian GNU/Linux on a Surface Go 2 with LTE/4G to replace my iPad Pro as daily driver.
Engineers Need Art
SystemSix
SystemSix is a desk calendar project that displays the weather forecast and phase of the moon on an...
over a year ago
SystemSix is a desk calendar project that displays the weather forecast and phase of the moon on an e-ink display.
Good Enough
Jelly was #1 on Hacker News
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious...
a month ago
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious for it's mercurial population of tech-maybe-too-saavy experts. Jelly is a tough sell for some of them, those with the technical skill to pipe email at a low level through...
Vitalik Buterin's...
Quadratic Payments: A Primer
over a year ago
Home on Erik...
Iterate or die
Here's a conclusion I've made building consumer products for many years: the speed at which a...
over a year ago
Here's a conclusion I've made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed.
I don't even mean throughput here. I just mean the cycle time.
Jonas Hietala
Faster than Light
So I returned to Faster than Light again this weekend, this time for real. I bought it when it came...
over a year ago
So I returned to Faster than Light again this weekend, this time for real. I bought it when it came out and I played it only in passing, but this weekend I played it a ton.
Aaahh a new beginning in FTL. Will it be death once more
I generally don’t like games where you have to...
Louwrentius
Corsair CM PSU-750HX seems ok
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair...
over a year ago
I had to replace my Coolermaster PSU and after some searching on the interweb,
I chose the Corsair CMPSU-750HX. One of the reasons is that Corsair states
that this PSU can withstand 50 degree Celcius in continuous operation on full
load.
The package is very, clean, with all the...
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
Avestura's Blog
An opinion on what's a good general-purpose programming language
What features should a programming language have to be ideal, in my opinion?
over a year ago
What features should a programming language have to be ideal, in my opinion?
watchTowr Labs
Hop-Skip-FortiJump-FortiJump-Higher - Fortinet FortiManager CVE-2024-47575
It’s been a tricky time for Fortinet (and their customers) lately - arguably, even more so than...
a month ago
It’s been a tricky time for Fortinet (and their customers) lately - arguably, even more so than usual. Adding to the steady flow of vulnerabilities in appliances recently was a nasty CVSS 9.8 vulnerability in FortiManager, their tool for central management of FortiGate...
Home on Erik...
Optimizing things: everything is a proxy for a proxy for a proxy
Say you build a machine learning model, like a movie recommender system. You need to optimize for...
over a year ago
Say you build a machine learning model, like a movie recommender system. You need to optimize for something. You have 1-5 stars as ratings so let's optimize for mean squared error. Great.
Then let's say you build a new model.
Jonas Hietala
8-puzzle in rust
I think rust is one of the most interesting upcoming programming languages out there. So I wrote a...
over a year ago
I think rust is one of the most interesting upcoming programming languages out there. So I wrote a solution to the 8-puzzle (see the 15-puzzle) using A*. It also has a breadth first search for solutions on a specific distance away from the goal.
The solution is not by any means a...
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.
Lighthouse Blog
Updates November 4: Free newsletter to RSS tool
2 months ago
Arduino Blog
This beautiful table creates art in the sand
Kinetic sand art tables are pretty hot right now, because they look really cool. They’re like zen...
4 months ago
Kinetic sand art tables are pretty hot right now, because they look really cool. They’re like zen gardens that rake themselves in intricate patterns. But most of the builds we’ve seen use a conventional cartesian CNC layout or polar layout. This table by Newsons Electronics takes...
Computer Ads from...
Creative Computing Magazine Interviews Clive Sinclair (1980)
This British inventor speaking about his ZX-80 computer system
3 weeks ago
This British inventor speaking about his ZX-80 computer system
Home on Erik...
hdfs2cass
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra...
over a year ago
Just open sourced hdfs2cass which is a Hadoop job (written in Java) to do efficient Cassandra bulkloading. The nice thing is that it queries Cassandra for its topology and uses that to partition the data so that each reducer can upload data directly to a Cassandra node.
Good Enough
TIL: Rails Testing
I had to figure out how to run browser-based tests in Rails again. In part that meant working around...
a year ago
I had to figure out how to run browser-based tests in Rails again. In part that meant working around my lack of Chrome. Rails System Tests with Safari.
I also had some problems with Rails Turbo Drive taking over EVERYTHING, which required me to figure out how to deal with a Rails...
Computer Ads from...
OS-9 Bonus Content
A detailed look at OS-9 for Tandy Color Computers
4 months ago
A detailed look at OS-9 for Tandy Color Computers
Notes on software...
Compiling dynamic programming languages
It can be difficult to disassociate the idea that dynamically typed
programming languages are tied...
over a year ago
It can be difficult to disassociate the idea that dynamically typed
programming languages are tied to byte-code interpreters (e.g. YARV
Ruby, CPython, V8, Zend Engine, etc.). But for many languages, a
compiled implementation also exists. Cython, Chicken Scheme and SBCL
are good...
Louwrentius
'A Moment Of Silence: OpenSolaris Is Dead'
The last release of OpenSolaris dates back to July 2009. The next release was
scheduled for March...
over a year ago
The last release of OpenSolaris dates back to July 2009. The next release was
scheduled for March 2010, but Oracle did not release anything. It is dead
silent around OpenSolaris.
On 12 July 2010, the OpenSolaris Government Board sent out an ultimatum
to Oracle: "please...
Christian Selig
More Efficient/Faster Average Color of Image
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of...
over a year ago
Skip to the ‘Juicy Code 🧃’ section if you just want the code and don’t care about the preamble of why you might want this!
Finding the average color of an image is a nice trick to have in your toolbelt for spicing up views. For instance on iOS, it’s used by Apple to make their...
Home on Erik...
Google diversity memo, global warming, Pascal's wager, and other stuff
There's about 765 million blog posts about the diversity “memo” that leaked out of Google a couple...
over a year ago
There's about 765 million blog posts about the diversity “memo” that leaked out of Google a couple of weeks ago. I think the case for any biological difference is pretty weak, and it bothers me when people refer to an “interest gap” as anything else than caused by the...
Arduino Blog
Arduino IDE 2.3.3: discover new support for shared spaces and more!
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This...
3 months ago
We’re excited to announce that the Arduino IDE 2.3.3 is now live! What’s in the new version This new release is packed with improvements, including one feature we’re particularly proud of: support for shared spaces in Arduino Cloud. If you have a Cloud Business plan or School...
Simply Explained
How I Structure My ESPHome Config Files
I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know...
over a year ago
I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know they can run ESPHome.ESPHome is a modular firmware that you have to configure with YAML files. You define what components it should load and how it should talk to the hardware of...
Vitalik Buterin's...
What kind of layer 3s make sense?
over a year ago
Arduino Blog
This Arduino-controlled Spin Meister helps spin up the perfect pizza
Dedicated pizza ovens are all the rage right now, as they provide a better-distributed and higher...
6 months ago
Dedicated pizza ovens are all the rage right now, as they provide a better-distributed and higher heat that many find more preferable than a conventional kitchen oven. But even a nice gas-powered pizza oven like the Ooni Koda 12 will have some hot spots and cold spots. To get an...
somenice
CBC Spark with Nora Young
Really upset to recently learn that Spark with Nora Young has been cancelled by the CBC, ending in...
6 months ago
Really upset to recently learn that Spark with Nora Young has been cancelled by the CBC, ending in June 2024. (Announcement episode) One of the most intelligent, progressive technology-in-society news shows in Canada or anywhere for that matter. Perhaps that it’s medium is radio...
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
TIL: Fixing Broken Action Text Images in Atom Feeds
For a while now we've seen that images in our Pika atom feeds were not displaying in some feed...
7 months ago
For a while now we've seen that images in our Pika atom feeds were not displaying in some feed readers.
In fact, they weren't displaying in my own feed reader, which routes through Feedly.
I was sad.
I spent a lot of time troubleshooting this.
Compared our feed with a lot of atom...
./techtipsy
My attempt at archiving nfscars.net
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which...
over a year ago
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which later got “upgraded” to Windows 98 SE
after I managed to completely screw up the OS, a whopping 96MB of RAM and a hard drive that probably wasn’t much larger
than 1-3GB. It wasn’t...
Style over Substance
My Home Assistant setup (2023 edition)
For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s...
a year ago
For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s become such a hobby of mine that I’ve even started coding add-ons for it. While there are other popular automation platforms, Home Assistant’s versatility blows the rest out of the...
Home on Erik...
More Luigi!
Continuing in the same spirit of shameless self-promotion, here's some recent Luigi press:
Reddit...
over a year ago
Continuing in the same spirit of shameless self-promotion, here's some recent Luigi press:
Reddit thread A Guide to Python Frameworks for Hadoop (slides from the NYC Hadoop User Group) This presentation from the Open Analytics NYC meetup about how Foursquare uses Luigi Luigi...
Matt Blewitt
Thoughts on User Safety: 2
Following up from last time, let’s explore the internal and insider fronts when moving beyond...
over a year ago
Following up from last time, let’s explore the internal and insider fronts when moving beyond security towards safety for our users.
Notes on software...
Standard ML in 2020
Incredibly, Standard ML implementations are still actively
developed. MLton, Poly/ML,
MLKit,
SML#...
over a year ago
Incredibly, Standard ML implementations are still actively
developed. MLton, Poly/ML,
MLKit,
SML# and
SML/NJ
are the most prominent. Discussion on the future direction of Standard
ML remains healthy as
well.
And somehow OCaml's lesser known cousin still beats out OCaml...
Jonas Hietala
Long Term Goals
I have a lot of things I want to do. Right now I want to go to the kids training tomorrow and also...
over a year ago
I have a lot of things I want to do. Right now I want to go to the kids training tomorrow and also to our training time. I haven’t trained a lot lately so it feels good to do something again and training the kids is very rewarding. On Monday I have the next graph theory lecture...
On Life and Lisp
Software freedom isn't about licenses -- it's about power.
A restrictive end-user license agreement is one way a company can exert power over the user. When...
over a year ago
A restrictive end-user license agreement is one way a company can exert power over the user. When the free software movement was founded thirty years ago, these restrictive licenses were the primary user-hostile power dynamic, so permissive and copyleft licenses emerged as...
Louwrentius
Redhat explains why chroot is not a security feature
I came across this Redhat security blog post that explains why the chroot command has it's uses, but...
over a year ago
I came across this Redhat security blog post that explains why the chroot command has it's uses, but it isn't magic security pixie dust. Running an application from within a chrooted jail or just on a well-configured system would result in the same level of security.
Josh...
Gwern.net Newsletter
May 2021 Gwern.net Newsletter
links on AI hardware, diffusion models, optogenetics, brain scanning.
over a year ago
links on AI hardware, diffusion models, optogenetics, brain scanning.
Birchtree
Everything is a reaction, nothing is forever, and everything comes back (members post)
Why nothing stays popular forever.
a month ago
Why nothing stays popular forever.
Jonas Hietala
Postmortem: Bugger
It’s time for the follow up on my latest game Bugger.
Wow it seems like forever since I begun this...
over a year ago
It’s time for the follow up on my latest game Bugger.
Wow it seems like forever since I begun this monthly game business, but it’s only been two months since I first thought about this and here I am having finished my third game. I’ve really come a long way, in the beginning I...
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...
3 weeks 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 —
Notes on software...
Writing a simple JSON library from scratch: a tour through modern C++
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is...
over a year ago
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is cheap. std::shared_ptr
means I don't have to manage any memory; no
more new/delete! (But try as I might to
understand std::unique_ptr, I'm just not there yet.)
The syntax has also...
Willem's Blog
Search like a pro: Google search operators
Read along for a comprehensive list of advanced Google search operators that allow you to filter...
over a year ago
Read along for a comprehensive list of advanced Google search operators that allow you to filter your search results.
Ken Shirriff's blog
Intel's $475 million error: the silicon behind the Pentium division bug
In 1993, Intel released the high-performance Pentium processor, the start of the long-running...
6 days ago
In 1993, Intel released the high-performance Pentium processor, the start of the long-running Pentium line.
The Pentium had many improvements over the previous processor, the Intel 486, including a faster floating-point division algorithm.
A year later, Professor Nicely, a number...
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...
Posts on Made of...
New reptyr feature: TTY-stealing
Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally...
over a year ago
Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally didn’t know how to solve within the reptyr model. Most annoyingly, reptyr fundamentally only worked on single processes, and could not attach processes with children, making it...
Jonas Hietala
Fun or Frustration? Ludum Dare 33
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule,...
over a year ago
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule, negotiated with my better half and everything is set up for epicness.
At first the idea was to make a game in rust, even tough I basically haven’t used it in almost a year, but when I...
Willem's Blog
Clouds below my floor
Building a little datacenter in my basement utilising a very fast internet connection.
over a year ago
Building a little datacenter in my basement utilising a very fast internet connection.
./techtipsy
Good reads
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule,...
a year ago
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule, Manager’s Schedule
a must-read for anyone working in a software development team. Helps
express what most of us have felt at some point in our careers.
The case of the 500-mile...
Simply Explained
Integrate Home Assistant with Apple Reminders
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos....
over a year ago
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos. This is trickier as it sounds, because Reminders has no API that can be accessed from Home Assistant. Here's how I worked around that problem with a script, input text helper and...
Notes on software...
Thinking about functional programming
Someone on Discord asked about how to learn functional programming.
The question and my initial...
a year ago
Someone on Discord asked about how to learn functional programming.
The question and my initial tweet on the subject prompted an
interesting
discussion
with Shriram
Krishnamurthi and other folks.
So here's a slightly more thought out exploration.
And just for backstory sake: I...
Neil Madden
Entity authentication with a KEM
In cryptography, the process of authenticating a user (or app/service) is known as entity...
a year ago
In cryptography, the process of authenticating a user (or app/service) is known as entity authentication or identification (to distinguish it from message authentication or data origin authentication). There are lots of ways to do this. In this post I’m going to talk about...
lcamtuf’s thing
A 15-minute intro to involute gears
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their...
a month ago
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their shape?
Notes on software...
The year in books: 11 to recommend in 2021
Last year (2021) I finished 17 books, a five year low. But that's ok!
4 fiction and 13 non-fiction....
over a year ago
Last year (2021) I finished 17 books, a five year low. But that's ok!
4 fiction and 13 non-fiction. Another 30 started but not finished.
Non-fiction
It seems I was pretty focused on business history books and history of
tech. The 8 non-fiction books I liked the most:
Designing...
Good Enough
Season 1, Issue 5: Promotes Regularity
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each...
over a year ago
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each have at least two children in our homes, begging for attention. And we each truly appreciate extended breaks as a means of reinvigorating ourselves to the ever important task of...
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...
Vitalik Buterin's...
Two thought experiments to evaluate automated stablecoins
over a year ago
Jonas Hietala
Postmortem: Balls
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one...
over a year ago
So it’s been what? Two, three years since I discovered the art of programming and I haven’t made one single game?! Well now I’m not counting the visual basic nightmare mastermind I made a long time ago but a real game. Whatever that means. I’ve had these monster-projects;
Point...
Louwrentius
This blog is now running on solar power
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which...
over a year ago
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which is connected to a solar charge controller. This device charges an old worn-out car battery and provides power to a Raspberry Pi ~~3b+~~ 4B, which in turn powers this (static)...
Louwrentius
Why I Do Use ZFS as a File System for My NAS
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system...
over a year ago
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system for my 18 TB NAS.
You have to understand that at the time, I believe the arguments in the article were relevant, but much has changed since then, and I do believe this article is...
Arduino Blog
A DIY weather display with dedicated outdoor sensor station
Weather stations are popular projects in the maker community because they’re useful and usually...
6 months ago
Weather stations are popular projects in the maker community because they’re useful and usually quite affordable to construct. But most that we see are really weather information displays that gather data through the internet from stations in the region. That data is fairly...
Notes on software...
Implementing zip archiving in Golang: unzipping
All code for this post is available on Github.
Let's take a look at how zip files work. Take a small...
over a year ago
All code for this post is available on Github.
Let's take a look at how zip files work. Take a small file for example:
$ cat hello.text
Hello!
Let's zip it up.
$ zip test.zip hello.text
adding: hello.text (stored 0%)
$ ls -lah test.zip
-rw-r--r-- 1 phil phil 177 Nov 23 23:04...
Willem's Blog
Multi-Window support in your iPad app
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI...
over a year ago
Take advantage of the improved support for multiple windows on iPadOS by implementing new UI concepts enabling different use cases for your app.
Notes on software...
Interpreting TypeScript
In addition to providing a static type system and compiler for a
superset of JavaScript, TypeScript...
over a year ago
In addition to providing a static type system and compiler for a
superset of JavaScript, TypeScript makes much of its functionality
available programmatically. In this post we'll use the TypeScript
compiler API to build an interpreter. We'll build off of a...
Applied Cartography
Globals in Histoire
Histoire, like so many other tools in the Vue ecosystem, is a bit of a neglected younger sibling to...
9 months ago
Histoire, like so many other tools in the Vue ecosystem, is a bit of a neglected younger sibling to Storybook — a little bit uglier, with worse documentation and a couple rough edges, but much more tightly integrated with Vue and Vite. [1]
One thing that was not particularly...
csvbase blog
Client libraries are better when they have no API
fsspec is secretly everywhere, and boss
8 months ago
fsspec is secretly everywhere, and boss
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...
3 weeks 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...
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.
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...
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...
Applied Cartography
Tailwind black magic: swallowing all pointer events
I wrote two days ago about a real and useful application of Tailwind black magic; here's...
9 months ago
I wrote two days ago about a real and useful application of Tailwind black magic; here's another.
Buttondown has a dropzone component lets folks drag-and-drop items or click on it to get a file-picker. It's used for importing images, archives, CSVs, the works: because it's so...
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...
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...
Arduino Blog
Meet Mr. Wallplate, an animatronic wall plate that speaks to you
Interactive robots always bring an element of intrigue, and even more so when they feature unusual...
7 months ago
Interactive robots always bring an element of intrigue, and even more so when they feature unusual parts and techniques to perform their actions. Mr. Wallplate, affectionately named by Tony K on Instructables, is one such robot that is contained within an electrical wall plate...
Applied Cartography
Improving Django's default pagination performance
Buttondown's API calls are very fast, and one of the reasons why is that we've removed every single...
4 months ago
Buttondown's API calls are very fast, and one of the reasons why is that we've removed every single possible database query that we can.
The most recent was what looked like a fairly benign COUNT(*) query, coming from the default Django paginator; if you're gonna paginate things,...
Arduino Blog
This smart spice box makes cooking a breeze
Many people shy away from cooking because they’re overwhelmed by all of the different steps and...
6 months ago
Many people shy away from cooking because they’re overwhelmed by all of the different steps and ingredients. Recipes are useful, but they aren’t very intuitive to those who are more comfortable with visual thinking. To help these people enjoy the cooking experience, Purdue...
Jonas Hietala
Done this, done that. What now?
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and...
over a year ago
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and starting some new courses in school. I’m liking my choice of Computer Science more and more. Data structures and Algorithms was a super fun course, I actually ordered a new book...
Matt Blewitt
Sensibly Default
There are two programming principles that I hold dear to my heart: the principle of least surprise...
2 months ago
There are two programming principles that I hold dear to my heart: the principle of least surprise and provide sensible defaults. I’ve recently been working within the GraphQL ecosystem, and the number of violations of both here has frustrated me. This will be a little bit ranty.
Electronics etc…
ThinMachine - a $25 Thin Client MacOS Time Machine Appliance
The instructions below set up Time Machine using the Apple File Protocol
(AFP). After publishing...
a year ago
The instructions below set up Time Machine using the Apple File Protocol
(AFP). After publishing this blog post, I’ve been told that this is now
deprecated and that Samba should be used instead. I’ll update this blog
post in the near future.
Introduction
The HP t520 Thin...
Jonas Hietala
Ludum Dare 22 results!
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was...
over a year ago
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was quite happy with it.
#24 Community 3.71
#40 Fun 3.38
#49 Theme 3.69
#65 Overall 3.42
#95 Humor 2.82
#167 Mood 2.92
#247 Innovation 2.69
#338 Audio 2.23
#340 Graphics 2.62
#376...
Louwrentius
Laptop or netbook as router?
If you want a router for distribution of internet to your computers at home,
there are several...
over a year ago
If you want a router for distribution of internet to your computers at home,
there are several options.
buy some embedded device from Linksys, Draytek, Asus, 3com, ZyXtel or
netgear
This type of hardware is cheap, economical, and gets you up and running in a
few minutes. The...
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?
Home on Erik...
Waiting time, load factor, and queueing theory: why you need to cut your systems a bit of slack
I've been reading up on operations research lately, including queueing theory. It started out as a...
over a year ago
I've been reading up on operations research lately, including queueing theory. It started out as a way to understand the very complex mortgage process (I work at a mortgage startup) but it's turned into my little hammer and now I see nails everywhere.
./techtipsy
My very first Dungeons and Dragons campaign
In December 2024, I did something that I had never done before: I participated in a short (~6 hours)...
6 hours ago
In December 2024, I did something that I had never done before: I participated in a short (~6 hours) Dungeons and
Dragons campaign.
It was the nerdiest thing ever, and I loved it!
The setting
After another day of keeping a critical production service up, the whole team met up at...
Arduino Blog
This UNO R4 WiFi-controlled device streamlines a restaurant’s online order system
Most successful restaurants operating today have to take advantage of online ordering, as a huge...
4 months ago
Most successful restaurants operating today have to take advantage of online ordering, as a huge chunk of customers have switched to takeout and delivery. But point-of-sale (POS) systems don’t always integrate well into a kitchen’s workflow and that can lead to missed orders —...
Applied Cartography
Against Against Innovation Tokens
Glyph (whose writing and contributions to the Python ecosystem I am deeply grateful for) wrote...
6 months ago
Glyph (whose writing and contributions to the Python ecosystem I am deeply grateful for) wrote Against Innovation Tokens yesterday:
In 2015, Dan McKinley laid out a model for software teams selecting technologies. He proposed that each team have a limited supply of “innovation...
Bryan Braun - Blog
Made in 2024
Here are some things I made in 2024:
Music Box Fun: Advanced Editing (a new major feature):
...
2 days ago
Here are some things I made in 2024:
Music Box Fun: Advanced Editing (a new major feature):
Adds multiple-note selection for bulk operations on notes (like deletion, copy/paste, nudging and dragging)
Also includes a “space editor” for arbitrarily adding/removing space...
Jonas Hietala
Calling closures in a Vec
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs:...
over a year ago
In rust one might want to have a list of closures, for example as a list of callbacks.
let mut fs: Vec<||> = Vec::new();
fs.push(|| { println!("imma firing my lazer"); });
for f in fs.iter() {
f(); // error: expected function but found `&||`
};
Maybe if we borrow...
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 