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.
Vitalik Buterin's...
A Quick Garbled Circuits Primer
over a year ago
axio.ms
Classical virtualisation rules applied to RISC-style atomics
In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable...
over a year ago
In 1974, Gerald Popek and Robert Goldberg published a paper, “Formal Requirements for Virtualizable Third Generation Architectures”, giving a set of characteristics for correct full-machine virtualisation.
Today, these characteristics remain very useful. Computer architects will...
Jonas Hietala
An intriguing new puzzle
Here’s another game made for the experimental gameplay project:
Slidoku which is a sort of mix...
over a year ago
Here’s another game made for the experimental gameplay project:
Slidoku which is a sort of mix between Rubik’s cube and sudoku. I enjoy puzzles like those and I really enjoyed this one too - it took me a while to beat it but I just love the feeling when you do. If you like...
Vitalik Buterin's...
Layer 1 Should Be Innovative in the Short Term but Less in the Long Term
over a year ago
Old Vintage...
Pretty pictures, bootable floppy disks, and the first Canon Cat demo?
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to...
5 months ago
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to get into the operating system and pull some tricks.
from our historical discussion of the Canon Cat, the Cat was designed by Jef Raskin as a sophisticated user-centric computer...
Jonas Hietala
The T-34/1 keyboard layout
This is the revision of the T-34 keyboard layout that I use as my primary driver. I’ve used this...
over a year ago
This is the revision of the T-34 keyboard layout that I use as my primary driver. I’ve used this particular version without any major changes for almost 3 months, so I’d say it’s a good improvement over the last revision.
There are two large changes from T-34/0: swapping o and...
Simply Explained
Impact of Adblockers on Google Analytics (vs. Plausible)
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have...
over a year ago
Adblocker usage is quickly rising, with some estimates saying that almost 25% of internet users have one installed. Not only do they block advertisements, but also analytics scripts (like Google Analytics, Matomo, etc.)So that begs the question: what is the impact of these...
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.
detreville
A writer's autobiography
(Just not mine.)
a year ago
Jonas Hietala
2023 in review
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not...
a year ago
This is my yearly review #14.
Amazing that I’ve kept up with this for 14 years.
Even though it’s not anything advanced, I really like looking back at the year to see what has happened.
Maybe it’s a very light version of a reverse bucket list, and I can see that it provides some...
Good Enough
TIL: Overriding Permalink Generation in FriendlyId
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails...
3 months ago
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails applications. In Pika we're using it to help with
generating permalinks for blog posts and pages as well as slugs for tags. When a customer
wrote in with a request to modify the behavior of...
Louwrentius
Parallel / distributed password cracking with John the Ripper and MPI
This article has been updated to reflect the changes for John version 1.7.8 as released in june...
over a year ago
This article has been updated to reflect the changes for John version 1.7.8 as released in june 2011.
The most important change is the fact that MPI support is now integrated in the jumbo patch.
The original John the Ripper off-line password cracker only uses a single processor...
./techtipsy
VR, VFIO and how latency ruined everything
I’ve been running my all-in-one
PC for a while now. It was my desktop, my NAS and my gaming...
over a year ago
I’ve been running my all-in-one
PC for a while now. It was my desktop, my NAS and my gaming PC.
However, during the next couple of months I kept hitting small bumps along the
road. Most of these were quite straightforward to fix, but there is one that
finally convinced me to go...
Arduino Blog
Save 20% on Arduino Cloud Maker Plan this May!
Enhance your IoT projects with our special offer! Get 20% off a yearly subscription to the Arduino...
7 months ago
Enhance your IoT projects with our special offer! Get 20% off a yearly subscription to the Arduino Cloud Maker Plan using code CLOUD20MAY. Valid until the end of May, this deal saves you $14.38, reducing the price from $71.88 to $57.50. Benefits of the Maker Plan: What is Arduino...
computers are bad
2024-01-21 multi-channel audio part 1
Stereophonic or two-channel audio is so ubiquitous today that we tend to refer
to all kinds of...
11 months ago
Stereophonic or two-channel audio is so ubiquitous today that we tend to refer
to all kinds of pieces of consumer audio reproduction equipment as "a stereo."
As you might imagine, this is a relatively modern phenomenon. While stereo
audio in concept dates to the late 19th...
Abort Retry Fail
The History of Commodore, Part 4
The Amiga, The Decline, The Fall
a year ago
The Amiga, The Decline, The Fall
Construction Physics
Born Sleeping
A personal post about the loss of our son
3 months ago
A personal post about the loss of our son
Arduino Blog
Light up the holiday season, with a new Plug and Make Kit tutorial!
Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make...
3 weeks ago
Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make Kit, you can build an interactive LED light installation that reacts when someone walks by – perfect for spreading cheer and adding a high-tech twist to your decorations. This...
Posts on Made of...
Stripe's monorepo developer environment
I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed...
7 months ago
I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed to many generations of Stripe’s developer environment – the tools that engineers used daily to write and test code. I think Stripe did a pretty good job designing and building that...
Buck on Software
Category velocity
People make decisions, not businesses.
over a year ago
People make decisions, not businesses.
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...
Jonas Hietala
Slackware update
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my...
over a year ago
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my installation and I decided to go through with a larger reinstallation once more. This is a log of some things I did differently.
Kernel
Before installing the kernel it’s nice to...
seangoedecke.com RSS...
Grifters, believers, grinders, and coasters
Why do engineers get mad at each other so often? I think a lot of programmer arguments bottom out...
a month ago
Why do engineers get mad at each other so often? I think a lot of programmer arguments bottom out in a cultural clash between different…
Birchtree
OpenAI is early Googling late-stage Google
Chuck W. Nelson: Google's Search Results Are Infested, and Open AI Is Using Google's Playbook From...
5 days ago
Chuck W. Nelson: Google's Search Results Are Infested, and Open AI Is Using Google's Playbook From the 2000s
In order for Google to keep its crown, it needs to remember what it was in the 2000s and a bit of luck.
Seeing Google grow from the
Louwrentius
How to run victron veconfigure on a mac
Introduction
Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool....
10 months ago
Introduction
Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool. Unforntunately this is a Windows-only tool, but there is still a way for Apple users to run this tool without any problems.
Tip: if you've never worked with the Terminal app on MacOS, it...
Good Enough
Actual Customer Support Is Remarkable
What a sad thing to write.
We believe in good software around here.
There is a lot of poorly built...
a year ago
What a sad thing to write.
We believe in good software around here.
There is a lot of poorly built software on the Internet and in the app stores.
Our motivation with Good Enough is to try to put together a few products that feel just right to the folks using them.
The things we...
lcamtuf’s thing
Dispatches from the farm upstate
Middle-aged computer expert opts to escape civilization, offers dubious life advice.
5 months ago
Middle-aged computer expert opts to escape civilization, offers dubious life advice.
anderegg.ca
My 2024 Upgradies Picks
The latest instalment of The Upgradies is coming soon from our friends at the Upgrade podcast. I...
a month ago
The latest instalment of The Upgradies is coming soon from our friends at the Upgrade podcast. I submitted my recommendations earlier today, and thought it would be fun to share my picks.
Best Overall iOS App
Bear
I once again don’t have a new app for this category, but Bear has...
computers are bad
2023-08-19 meanwhile elsewhere
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard...
a year ago
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard time getting to it. Instead I did the yard work, edited
and uploaded a YouTube video, and then spewed out a Cohost thread as long as a
blog post. So in lieu of your regularly...
Louwrentius
Configuring, attacking and securing VRRP on Linux
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple...
over a year ago
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple routers in an active/passive configuration. If the primary router fails, the backup router takes over almost seamlessly.
This is how VRRP works:
Clients connect to a virtual...
Jonas Hietala
Widening the horizon
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in...
over a year ago
This is a game making site but where are the games? What gives?
I’ve been slightly less motivated in making games lately and I’ve been doing different things, just to get my ideas and my motivation up. As I said in an earlier post I wanted a break from Experimental Games and I...
GitButler
The Future of Open Source
A GitHub founder's musings on the past, present and future of large groups of people collaborating...
4 months ago
A GitHub founder's musings on the past, present and future of large groups of people collaborating on software in awesome ways.
On Life and Lisp
The first conformant M1 GPU driver
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the...
a year ago
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the drivers are compatible with any OpenGL ES
3.1 application. Interested? Just install Linux!
For existing Asahi Linux users,
upgrade your system with dnf
upgrade (Fedora) or pacman
-Syu...
Notes on software...
Interpreting Go
After spending some time at work on tooling for keeping documentation
in sync with Go struct...
over a year ago
After spending some time at work on tooling for keeping documentation
in sync with Go struct definitions I had enough exposure to Go's
built-in parsing package that next steps were clear: write an
interpreter. It's a great way to get more comfortable with a
language's
AST.
In...
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...
Arduino Blog
This Arduino-controlled machine dispenses the perfect bowl of cereal
Breakfast cereal is controversial. Milk or cereal first? Best cereal to milk ratio? Favorite cereal?...
7 months ago
Breakfast cereal is controversial. Milk or cereal first? Best cereal to milk ratio? Favorite cereal? Most attractive mascot? The opportunities for debate never end. But we can all agree that consistency is key when it comes to the milk:cereal ratio — nobody changes that up from...
Posts on Made of...
DEF CON
I’m sitting in the airport in Las Vegas on the way back from DEF CON 15. It’s the first time I’ve...
over a year ago
I’m sitting in the airport in Las Vegas on the way back from DEF CON 15. It’s the first time I’ve been at the con, and it wasn’t really what I expected. Frankly, I walked away feeling kinda underwhelmed.
Very few of the talks were as technical as I was hoping – they were almost...
Lighthouse Blog
How to combine multiple RSS feeds in one view
7 months ago
Willem's Blog
Cleaning a vintage watch
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old...
over a year ago
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old beauty underneath layers of dirt!
Notes on software...
Learning a new codebase: hacking on nginx
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up,...
over a year ago
I have never contributed to nginx. My C skills are 1/10. But
downloading the source, hacking it up, compiling it, and running it
doesn't scare me. This post is to help you overcome your own fears
about doing so. Not necessarily because you should be running
out-of-tree diffs in...
Jonas Hietala
Rising from the Dead, it's Ludum Dare
I’ve been a long time gone, been busy with school then having summer vacation and generally not...
over a year ago
I’ve been a long time gone, been busy with school then having summer vacation and generally not making games or blogging. But I have revived! I scrambled to push my new website live because today it’s Ludum Dare time! The theme is “Evolution” and it’s the 24th time for Ludum Dare...
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...
Louwrentius
AI is critically important but not for you
Before Chat-GPT caused a sensation, big tech companies like Facebook and Apple were betting their...
7 months ago
Before Chat-GPT caused a sensation, big tech companies like Facebook and Apple were betting their future growth on virtual reality. But I'm convinced that virtual reality will never be a mainstream thing. If you ever used VR you know why:
A heavy thing on your head that messes up...
Jonas Hietala
Let's build a VORON: Toolhead
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt...
a year ago
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt are installed
Tap is installed
The toolhead with Stealthburner + Clockwork 2 is also installed
Purple means Pretty.
I’ve run into a few problems on the way that I’ll try to...
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...
Louwrentius
Don't use cloud services if you care about secrecy of your data
When you use cloud services, you are storing your data on other people's hard drives.
The moment you...
over a year ago
When you use cloud services, you are storing your data on other people's hard drives.
The moment you put your data within a cloud service, that data is no longer under your control. You don't know who will access that data. Secrecy is lost.
Instead of using services like Gmail...
Applied Cartography
Hidden settings are for cowards
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be...
4 weeks ago
At Stripe, we had two abstractions for branching logic in production: flags, which were meant to be explicitly temporal (temporarily split-testing traffic; rolling out a new feature or code path; exposing a specific path for a cohort of users during a closed beta) and gates,...
Home on Erik...
ML at Twitter
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is...
over a year ago
I recently came across this paper describing how they do ML at Twitter.
TL;DR Their approach is pretty interesting. Everything is a Pig workflow and then they do everything as UDF's.
This approach seems pretty interesting.
Notes on software...
Writing to be read
There is a common struggle in the writing and maintenance of
documentation, checklists, emails,...
over a year ago
There is a common struggle in the writing and maintenance of
documentation, checklists, emails, guides, etc. Each provides immense
value; a document may be the key to an important process. The goal is
to remove barriers -- to encourage understanding and correct
application of...
Posts on Made of...
Configuring dnsmasq with VMware Workstation
I love VMware workstation. I keep VMs around for basically every version of every major Linux...
over a year ago
I love VMware workstation. I keep VMs around for basically every version of every major Linux distribution, and use them heavily for all kinds of kernel testing and development.
This post is a quick writeup of my networking setup with VMware Workstation, using dnsmasq to assign...
Applied Cartography
PSA: mess around with Kolo
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with...
10 months ago
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with Buttondown — a process that I expected to take a couple hours on a lazy Sunday and in fact took ten minutes and three lines of code.
If you have a Django app, I think you should drop...
Jonas Hietala
Fixing Problems
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a...
over a year ago
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a nice thread with a great answer. I solved it by forcefully patching libflashplayer.so
perl -pi.bak -e 's/libvdpau/lixvdpau/g' libflashplayer.so
Worked perfectly!
I fixed the...
Willem's Blog
The day I killed my LAN
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
over a year ago
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.
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...
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...
Louwrentius
The 'hidden' cost of using ZFS for your home NAS
Introduction
Update December 2023:
In June, it was announced that iXsystems would sponsor...
over a year ago
Introduction
Update December 2023:
In June, it was announced that iXsystems would sponsor implementing the VDEV expansion feature. A new pr has been created for this effort. The feature was merged into the code base, but may not be available to the general public before the end...
Old Vintage...
After 41 years, my first assembly program on my first computer, the Tomy Tutor
We got it in 1983, I think, so it only took me about 41 years to get around to it. This Tomy Tutor...
9 months ago
We got it in 1983, I think, so it only took me about 41 years to get around to it. This Tomy Tutor isn't a replacement system I secondarily acquired, nor is it a Ship of Theseus Frankenstein rebuild. This is my actual first computer, in its original case, on its original...
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...
Posts on Made of...
todo.pl ratmenu
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t...
over a year ago
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t use a mac, but I don’t see why linux users shouldn’t get fun toys to. So I hacked up the following two-liner that uses todo.pl and ratmenu to pop up a list of tasks, and mark one...
Jonas Hietala
Moving private repositories to Bitbucket
Long overdue, I recently moved my private repositories from Github to Bitbucket. Github is great of...
over a year ago
Long overdue, I recently moved my private repositories from Github to Bitbucket. Github is great of courseand they even gave me a free students account and I still host all my public repositories there. Still, Bitbucket has unlimited free private repositories for up to 5 users...
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...
Electronics etc…
HP 8656A Signal Generator Schematics
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the...
10 months ago
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the schematics of chapter 8 are all spread over 3 or 4 pages, which makes
them hard to follow.
I spent a good evening extracting the schematics pages, cutting-and-pasting
them together...
Vitalik Buterin's...
What do I think about biometric proof of personhood?
a year ago
csvbase blog
Being on The Semantic Web is easy, and, frankly, well worth the bother
Web 3.0 was not about the blockchain, thank god
4 months ago
Web 3.0 was not about the blockchain, thank god
Louwrentius
Storage and I/O: reads vs. writes
There is a fundamental difference between a read operation and a write operation. Storage can lie...
over a year ago
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned.
About...
Posts on Made of...
amd64 and va_arg
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t...
over a year ago
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t support the va_arg intrinsic, used by functions to accept multiple arguments, at all on amd64. It turns out that clang and llvm-gcc, the compilers that backend to LLVM, have their own...
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...
Gwern.net Newsletter
November newsletter
November 2020 gwern.net newsletter with links on DL and genomics scaling, dark mode rewrite, 1...
over a year ago
November 2020 gwern.net newsletter with links on DL and genomics scaling, dark mode rewrite, 1 essay, and 1 opera review ('The Ring' cycle).
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...
Home on Erik...
Snakebite
Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie....
over a year ago
Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie. It's a super fast tool to access HDFS over CLI/Python, by accessing the namenode directly over sockets/protobuf.
Spotify's developer blog features a nice blog post outlining what...
Willem's Blog
Optimising images for the web and performance
Make your website faster by optimising the images. This posts explains how you can do this.
over a year ago
Make your website faster by optimising the images. This posts explains how you can do this.
Notes on software...
Speeding up Go's builtin JSON encoder up to 55% for large arrays of objects
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.
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
Vitalik Buterin's...
Base Layers And Functionality Escape Velocity
over a year ago
Bryan Braun - Blog
Setting up your /now page with an RSS feed
I have a /now page, which I use to tell people what I’m up to these days.
I like the concept of “now...
2 months ago
I have a /now page, which I use to tell people what I’m up to these days.
I like the concept of “now pages” but I felt like it would be better if it had an RSS feed. The feed would give interested parties a way to subscribe to life changes.
The problem is that RSS feeds aren’t...
Louwrentius
Highpoint RocketRAID 2320 on Debian howto
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed...
over a year ago
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed binary driver.)
http://www.highpoint-tech.com/USA/bios_rr2320.htm
Install the kernel headers if you haven't already
- apt-get install linux-headers-2.6.18-6-k7
- extract the...
Home on Erik...
Software Engineers and Automation
Every once in a while when talking to smart people the topic of automation comes up. Technology has...
over a year ago
Every once in a while when talking to smart people the topic of automation comes up. Technology has made lots of occupations redundant, so what's next?
Switchboard operator, a long time ago
What about software engineers?
Arduino Blog
“Catch me if you can!” — How Alvik learns to dodge trouble with AI, featuring Roni Bandini
Have you ever discovered a cool piece of tech buried in your drawer and thought, “This could make...
3 months ago
Have you ever discovered a cool piece of tech buried in your drawer and thought, “This could make for an awesome project”? That’s exactly what happened to Roni Bandini, maker, writer, electronics artist – and Arduino Alvik Star! Bandini began coding at 10 years old, and has...
Good Enough
Season 3, Issue 3: Cosmic Maelstrom
1. Team Full
It's exciting times over here at Good Enough HQ!
(There is no Good Enough HQ. I'd say...
a year ago
1. Team Full
It's exciting times over here at Good Enough HQ!
(There is no Good Enough HQ. I'd say it's in the cloud, but even clouds are now looked down upon as dirtyish things that should not be enjoyed. And not because of air pollution per se, though perhaps because of...
Louwrentius
Benchmark results of Random I/O performance of different RAID levels
Introduction
I have performed some benchmarks to determine how different RAID levels perform when...
over a year ago
Introduction
I have performed some benchmarks to determine how different RAID levels perform when handling a 100% random workload of 4K requests. This is a worst-case scenario for almost every storage subsystem. Normal day-to-day workloads may not be that harsh in a real-life...
Louwrentius
Linux RAID 6 performance using software RAID
So after toying around with RAID 0 just for fun, time to get serious. I
created a RAID 6 of 10 x 1...
over a year ago
So after toying around with RAID 0 just for fun, time to get serious. I
created a RAID 6 of 10 x 1 TB disks. This gives me raw device read speeds
of 850 MB/s and write speeds of 300 MB/s. I think this is exactly
what should be expected, but boy it is damn fast. Especially the...
Jonas Hietala
Let's build a VORON: More mods
The printer is done, but I feel one of the best part of a VORON printer is the ability to modify and...
10 months ago
The printer is done, but I feel one of the best part of a VORON printer is the ability to modify and personalize it.
There a tons of mods you can do, and while I’ve done a few there are lots more that I’d like to do some day.
It’s a wonderful feeling to augment the printer with...
./techtipsy
Disk is OK
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of...
over a year ago
Maybe I am unlucky with computer hardware.
Maybe I have the opposite of the golden touch of Midas.
Or maybe it’s just the fact that I use my hardware for things they were never meant to be used for.
Anyway, I have acquired two Seagate 4TB external hard drives for doing some...
Arduino Blog
This disturbing Halloween doll was brought to life with Bottango
Halloween is popular for a lot of reasons and it is safe to say that “creative expression” is near...
2 months ago
Halloween is popular for a lot of reasons and it is safe to say that “creative expression” is near the top of the list. That extends beyond store-bought costumes and decorations to DIY projects. If you want an excuse to make something impractical, Halloween can provide that. And...
Vitalik Buterin's...
Exploring Fully Homomorphic Encryption
over a year ago
Jonas Hietala
Going into Being Busy mode
I’m in the civil service atm and, sadly, we’re going to be extremely busy the coming… two months or...
over a year ago
I’m in the civil service atm and, sadly, we’re going to be extremely busy the coming… two months or something? So I can’t promise a game the next two months. Kinda beats the point of this site doesn’t it? I’m really sorry and that’s all I can say really…
Hopefully I’ll get a week...
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...
Posts on Made of...
How I Write Tests
The longer I spend as a software engineer, the more obsessive I get about testing. I fully subscribe...
over a year ago
The longer I spend as a software engineer, the more obsessive I get about testing. I fully subscribe to the definition of legacy code as “code without an automated test suite.” I’m convinced that the best thing you can do to encourage fast progress in a test suite is to design...
Jonas Hietala
Weekend Tournaments
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament...
over a year ago
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament and on Sunday the local Netrunner community hosted a small summer kit tournament.
Game of Thrones
We’ve had a similar tournament once before when me and my girlfriend invited two of...
./techtipsy
The best laptop is the one somebody else had
In 2011, I was finishing 9th grade. As a gift, I got to choose a laptop in the
400 EUR range. I...
2 months ago
In 2011, I was finishing 9th grade. As a gift, I got to choose a laptop in the
400 EUR range. I ended up picking
an ASUS Eee PC 1201PN. It was new and the
first computer in my life that was 100% mine, but awfully slow for a lot of tasks.
It was so slow that I ended up giving...
Louwrentius
'Linux: using disk labels to counter storage device name changes'
My router decided to change the device name for some USB storage devices. So
/dev/sdc was swapped...
over a year ago
My router decided to change the device name for some USB storage devices. So
/dev/sdc was swapped for /dev/sdd and vice versa. The result was some file
system corruption on /dev/sdc, because it was used on a remote system through
iSCSI, using a different file system from...
Louwrentius
Do not buy a hardware RAID controller for home use
Hardware RAID controllers are considered 'the best' solution for high
performance and high...
over a year ago
Hardware RAID controllers are considered 'the best' solution for high
performance and high availability. However, this is not entirely true. Using a
hardware RAID controller might even endanger your precious data.
For enterprise environments, where performance is critical, it is...
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...
Notes on software...
Obsession
In your professional and personal life, I don't believe there is a stronger motivation than having...
4 months ago
In your professional and personal life, I don't believe there is a stronger motivation than having something in mind and the desire to do it. Yet the natural way to deal with a desire to do something is to justify why it's not possible.
"I want to read more books but nobody reads...
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 3. LLVM
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
4. LLVM conditionals and compiling fibonacci
5. LLVM system calls
6. an x86 upgrade
In this post we'll extend the
compiler to emit LLVM
IR as an option instead of...
Posts on Made of...
Design for Testability
When designing a new software project, one is often faced with a glut of choices about how to...
over a year ago
When designing a new software project, one is often faced with a glut of choices about how to structure it. What should the core abstractions be? How should they interact with each other?
In this post, I want to argue for a design heuristic that I’ve found to be a useful guide to...
Birchtree
Apple’s 2024 report card: the Mac 💻
This is the third in a series of posts reviewing Apple’s 2024 across their major product lines. I...
6 days ago
This is the third in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s Mac report card here.
MacBook Pro
The MacBook Pro continues to get a relentless stream of updates, as
Arduino Blog
Explore underwater with this Arduino-controlled DIY ROV
Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the...
4 months ago
Who doesn’t want to explore underwater? To take a journey beneath the surface of a lake or even the ocean? But a remotely operated vehicle (ROV), which is the kind of robot you’d use for such an adventure, isn’t exactly the kind of thing you’ll find on the shelf at your local...
Opsbros
Artemis 1 Countdown
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it...
over a year ago
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it with serveral people, and I had been regularly posting updated DateandTime countdown links for the revised launch attempts. With the schedule chnages and scrubs that have happened...
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.
Buck on Software
Winds of Change
Software is maybe, just maybe about to get exciting
6 months ago
Software is maybe, just maybe about to get exciting
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...
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 3: pressure transducers
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11 months ago
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The Bendix Central Air...
Electronics etc…
The HP 423A and a Beginner’s Deep Dive into RF Crystal Detectors
MathJax.Hub.Config({
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inlineMath: [...
a year ago
MathJax.Hub.Config({
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tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
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skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Abort Retry Fail
The History of Slackware
The Oldest Surviving Linux Distribution
a year ago
The Oldest Surviving Linux Distribution
Birchtree
I’m Not a Panda Person
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web...
a week ago
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web apps.
Watch it on YouTube or listen in your favorite podcast app!
Nabeel S. Qureshi
Advice That Actually Worked For Me
My contribution to the 'productivity advice' genre.
over a year ago
My contribution to the 'productivity advice' genre.
Arduino Blog
Easily build an energy meter with the Arduino Nano Matter
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded...
3 months ago
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded equivalent of computers — general purpose devices that can perform a wide range of functions. And to get the most out of a microcontroller, you’ll also want connectivity suitable for...
Jonas Hietala
An invisible Remake
What does a guy like me do when not working on a new game? Except living my life, being a coach for...
over a year ago
What does a guy like me do when not working on a new game? Except living my life, being a coach for my little brother’s hockey team and eating strawberries? The last week or so I’ve been working hard with my webpage, yes this page. If you’ve visited my site before today you’ll...
Lighthouse Blog
Introducing Lighthouse - The RSS reader, newsletter reader, and read-it-later app to fight content...
9 months ago
seangoedecke.com RSS...
MCTS and LLMs: what's the big deal?
Everyone on the internet is recently very excited about large language models and Monte Carlo tree...
6 months ago
Everyone on the internet is recently very excited about large language models and Monte Carlo tree search. Going back months, the “Q*” leak…
Arduino Blog
A stroopwafel doneness detection device
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a...
5 months ago
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a sweet treat as well. That is a stroopwafel, a crispy little waffle-syrup sandwich that the Dutch like to rest on top of their drink so that the rising heat will soften the pastry....
Home on Erik...
Momentum strategies
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday...
over a year ago
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday night. Basically I wanted to know whether momentum strategies work well for international stock indexes. I spent a bit of time putting together a strategy that buys the stock index if...
Good Enough
Season 1, Issue 3: Fool Me Three Times
This will be a short one. Barry’s summer vacation has started, and Shawn is deflated after the...
over a year ago
This will be a short one. Barry’s summer vacation has started, and Shawn is deflated after the Warr…iors... sob… It’s just one game, right?
1. No One Likes a Giveaway
Who doesn’t love a good pickle?
Well that didn’t happen. There were no entries to last week’s giveaway. If you...
Vitalik Buterin's...
A Prehistory of the Ethereum Protocol
over a year ago
Notes on software...
Extending gosql to supporting LIMIT and OFFSET
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface...
over a year ago
It's been a few months since I picked up
gosql and I wanted to use it to
prototype a SQL interface for data stored in S3. But one missing
critical feature in gosql is LIMIT and OFFSET support. This post walks
through the few key changes to gosql to support LIMIT and OFFSET.
You...
seangoedecke.com RSS...
Learning incident response with problem sets
It’s hard to teach good incident response. A good understanding of how the system runs in production...
over a year ago
It’s hard to teach good incident response. A good understanding of how the system runs in production is essential, but how do you build that…
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
Bryan Braun - Blog
The flood of AI website builders
There are so many of them.
instead of markdown to enable lazy-loading -->
How good...
8 months ago
There are so many of them.
instead of markdown to enable lazy-loading -->
How good are these site builders? I don’t know.
Are you worried about job security? I have two thoughts…
1. We’ve seen this before
Wordpress, Squarespace, Shopify, Webflow… all these tools...
Posts on Made of...
A week with the iPhone
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about...
over a year ago
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about it.
First, the little things. It is, in typical Apple fashion, an incredibly slick piece of work. Scrolling and zooming images or webpages is simple, easy, and, well, just fun to do...
Jonas Hietala
Focusing Attention: Study Hacking
A week of drawing is over, but I didn’t draw that much. It was a little bit of a fail from my...
over a year ago
A week of drawing is over, but I didn’t draw that much. It was a little bit of a fail from my part.
But the past is the past and this week I’m going to be study focused. Not that I need to study, but I really need to rework my study technique. I’ve been going on like a classical...
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...
Louwrentius
Which file system for a large storage array under Linux?
There are many file systems available under Linux, however only a few of them
can be used for a...
over a year ago
There are many file systems available under Linux, however only a few of them
can be used for a large storage array.
I am assuming that you want to create a single file system. I don't care if
you use LVM or other layers beneath, this is about which file system to use.
I will...
Arduino Blog
This nature-inspired display reacts to ambient sounds
We all need ways to calm down and relax, and few things are as effective as nature itself. Taking...
2 weeks ago
We all need ways to calm down and relax, and few things are as effective as nature itself. Taking inspiration from organic patterns and smooth, flowing waves, dzeng on Instructables has built an LED wall light that responds in real-time to the sounds within a room. The project...
computers are bad
2024-07-20 minuteman missile communications
A programming note: I am looking at making some changes to how I host things
like Computers Are Bad...
5 months ago
A programming note: I am looking at making some changes to how I host things
like Computers Are Bad and wikimap that are going to
involve a lot more recurring expense. For that and other reasons, I want to see
if y'all would be willing to throw some money my way. If everyone...
Jonas Hietala
Food vacation in Japan
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of...
over a year ago
Me and my friend spent 2 weeks in Japan and had a great time. I wasn’t planning on taking a lot of pictures, but I ended up sending a bunch back home as a ways of keeping my family up to date. When I look back most of them are about food… So I’ll turn this into a post about the...
Louwrentius
The Raspberry Pi 5 is no match for a tini-mini-micro PC
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable...
6 months ago
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable computer. An ideal home server. Until the Pi 4, the Pi was not that capable, and only with the relatively recent Pi 5 (fall 2023) do I feel the Pi is OK performance wise, although...
Willem's Blog
Half Marathon
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness -...
9 months ago
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness - read about my experiences!
Home on Erik...
Nearest neighbors and vector models – epilogue – curse of dimensionality
This is another post based on my talk at NYC Machine Learning. The previous two parts covered most...
over a year ago
This is another post based on my talk at NYC Machine Learning. The previous two parts covered most of the interesting parts, but there are still some topics left to be discussed. To go back and read the meaty stuff, check out
Birchtree
Somehow, more YouTube gems
Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them...
a week ago
Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them 😊
I love Answer in Progress, especially Sabrina’s videos, and she gets about as obsessed with anything she’s ever looked at in this episode (and
Arduino Blog
See how this homemade spectrometer analyzes substances with an Arduino Mega
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic...
a week ago
Materials, when exposed to light, will reflect or absorb certain portions of the electromagnetic spectrum that can give valuable information about their chemical or physical compositions. Traditional setups use a single lamp to emit white light before it is split apart into a...
Willem's Blog
Fixed Gear Gran Fondo
Taking a fixed gear road bike for a gran fondo! Let some of my fun be of inspiration to you!
over a year ago
Taking a fixed gear road bike for a gran fondo! Let some of my fun be of inspiration to you!
Notes on software...
Generating a REST API from a database
I recently published an alpha version of a code generation tool,
DBCore, that reads a...
over a year ago
I recently published an alpha version of a code generation tool,
DBCore, that reads a database
schema from PostgreSQL or MySQL and generates an entire Go API with
CRUD operations, pagination, filtering, and authentication.
But more than just generating code like
xo/xo or...
Christian Selig
Recreating Apple's beautiful visionOS search bar
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front...
9 months ago
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front and center on the window so you can easily search through your content. Oddly, as of visionOS 1.1, replicating this visually as a developer using SwiftUI or UIKit is not...
Willem's Blog
Hospitalised with MCADD
This week our son was hospitalised because a regular illness caused him to keep vomiting, a...
over a year ago
This week our son was hospitalised because a regular illness caused him to keep vomiting, a dangerous situation if you're diagnosed with MCADD.
Jonas Hietala
Christmas break
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and...
over a year ago
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and I really enjoy studying here. We had lisp the whole time which is a pretty sweet little language and if you haven’t, give it a shot. Then we had math and I do like math, although I...
Vitalik Buterin's...
In Defense of Bitcoin Maximalism
over a year ago
Gwern.net Newsletter
September 2020 News
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no...
over a year ago
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no reviews.
Applied Cartography
Applied Cartography × People & Blogs
There are few pleasures greater than getting to be profiled for an interview series that you've been...
2 months ago
There are few pleasures greater than getting to be profiled for an interview series that you've been reading for months, and last week I got to do exactly that.
To browse Manu's site — not just this interview series — feels a bit like walking on a quiet beach in autumn: there's a...
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.
Azad's Blog
Traveling with Apple Vision Pro
The Vision Pro has quickly become an essential item that I take onto every flight. It’s a fantastic...
2 months ago
The Vision Pro has quickly become an essential item that I take onto every flight. It’s a fantastic device to travel with—Be it by train or by plane, it offers an unparalleled opportunity to selectively tune out your environment and sink into an engaging activity like watching a...
Push to Prod
One Key Aspect of Optimizing Computational Throughput
When optimizing throughput, think carefully about how many CPUs you have when adding threads or...
3 months ago
When optimizing throughput, think carefully about how many CPUs you have when adding threads or processes.
Louwrentius
'Improved' image gallery for Blogofile
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports...
over a year ago
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports a small image gallery that has been written to illustrate how to create your own 'controllers' or Blogofile plugins.
My Python skills are horrible buy I managed to improve a bit...
Louwrentius
Unattended automatic installation of Linux nvidia binary driver
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver....
over a year ago
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver. This is a manual proces by default. However, it can be
done fully automatic:
prerequisite: install xserver-xorg-dev package or similar xorg development
package.
sh NVIDIA-.run -q...
Posts on Made of...
Running Tensorflow on AWS GPUs
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that...
over a year ago
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that project I wanted to be able to train models using GPUs on EC2. This post contains some notes on what it took to get that working. As many people have commented, the environment setup...
Home on Erik...
Everything I learned about technical debt
I just made it to Sweden suffering from jet lag induced insomnia, but this blog post will not cover...
over a year ago
I just made it to Sweden suffering from jet lag induced insomnia, but this blog post will not cover that. Instead, I will talk a little bit about technical debt.
The concept of technical debt always resonated with me, partly because I always like the analogy with “real” debt.
Jonas Hietala
Postmortem: A Geek Valentine
Ah man the mush in my brain is finally letting go and I’m starting to feel this tiny little...
over a year ago
Ah man the mush in my brain is finally letting go and I’m starting to feel this tiny little programming urge again… This time it’s not Haskell or a new experimental game that’s luring me on, no this time it’s me longing to create this fantastic awesome epic RTS game. Sadly it’s a...
Jonas Hietala
Swelling with New Shiny Books
So I read the wonderful Design for Hackers and I managed to win some money for books from a course…...
over a year ago
So I read the wonderful Design for Hackers and I managed to win some money for books from a course… So I ran away and ordered some new books, and they just arrived today. Yay!
First off I ordered Introduction to Algorithms which is the de facto book about algorithms and it seemed...
Ken Shirriff's blog
Reverse-engineering a three-axis attitude indicator from the F-4 fighter plane
We recently received an attitude indicator for the F-4 fighter plane, an instrument that
uses a...
3 months ago
We recently received an attitude indicator for the F-4 fighter plane, an instrument that
uses a rotating ball to show the aircraft's orientation and direction.
In a normal aircraft, the artificial horizon shows the orientation in two axes (pitch and roll), but the F-4...
Posts on Made of...
Efficiency trades off against resiliency
What’s the “right” level of CPU utilization for a server? If you look at a monitoring dashboard from...
a year ago
What’s the “right” level of CPU utilization for a server? If you look at a monitoring dashboard from a well-designed and well-run service, what CPU utilization should we hope to see, averaged over a day or two?
It’s a very general question, and it’s not clear it should have a...
Jonas Hietala
Pushing toward Git
The time has come; it’s time for me to move my source out in the open for the first time.
Repository...
over a year ago
The time has come; it’s time for me to move my source out in the open for the first time.
Repository deleted, never became anything
Available on Github
It’s nothing special really, if you want take a look at the code and help me improve it.
Home on Erik...
NYC Machine Learning meetup
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly....
over a year ago
From the NYC Machine Learning talk I had last week:
Haven't looked at it yet except briefly. Unfortunately the quality isn't the best.
Jonas Hietala
Vacation
Finally back from a 2 week vacation up at Övertorneå. It’s been pretty great to be taken care of and...
over a year ago
Finally back from a 2 week vacation up at Övertorneå. It’s been pretty great to be taken care of and not doing anything. Well, I did get my ass kicked in Terra Mystica and I played a bit of Minecraft, but still. We got some nice food and my in-laws and my parents were nice.
I’m...
Matt Mullenweg
Falling Snow
The talented Felix Arntz has given an incredible Christmas gift to the WordPress community with his...
2 weeks ago
The talented Felix Arntz has given an incredible Christmas gift to the WordPress community with his fast, light, and accessible Snow Fall plugin, which is live on this site and you can install on yours. I hope everyone is having a happy holidays! Search for “snow fall” in your...
Electronics etc…
Remote Controlling an HP 1670G Logic Analyzer with a Linux PC X Server
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the...
a year ago
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the logic analyzer
Allow the logic analyzer to access your Ubuntu X server
Configure the X-window Settings on the logic analyzer
Install and declare the HP logic analyzer font...
Willem's Blog
Tablet as Tool
Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and...
a year ago
Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and personal experiences to help you maximise the tablet's potential and redefine your workflow.
Engineers Need Art
Apple Interview (1995)
Recalling my somewhat unusual interview with Apple back in 1995.
over a year ago
Recalling my somewhat unusual interview with Apple back in 1995.
Computer Ads from...
E-Z Tax
The Tax Break You've Been Looking for !
8 months ago
The Tax Break You've Been Looking for !
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?
Louwrentius
1.0 GB/s using Linux software RAID
I filled the Norco case with hardware. It is now up and running, based on
Debian Linux (Lenny).
I...
over a year ago
I filled the Norco case with hardware. It is now up and running, based on
Debian Linux (Lenny).
I immediately performed some initial tests with software RAID 0. The results
are just astounding.
debian:~# dd if=/dev/md0 of=/dev/null bs=1M count=50000
50000+0 records in
50000+0...
Notes on software...
Be someone who does things
I wrote last
month that
what you want to do is one of the most useful motivations in life. I
want to...
3 months ago
I wrote last
month that
what you want to do is one of the most useful motivations in life. I
want to follow that up by saying that the only thing more important
than wanting to do something is to actually do something.
The most valuable trait you can develop for yourself is to...
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...
Jonas Hietala
Let's build a VORON: Printing & Tuning
It’s up and running, and now it’s finally printing time!
Less exciting—but necessary—tuning the...
a year ago
It’s up and running, and now it’s finally printing time!
Less exciting—but necessary—tuning the printer to make the prints better.
Filament shipment
Even though I’ve been building the printer for more than a month, I wasn’t ready for it being time for printing so soon.
I don’t...
Vitalik Buterin's...
A Note On Charity Through Marginal Price Discrimination
over a year ago
Arduino Blog
A drone remote designed to enhance magic shows
Maker culture has always been a major part of magic performance. Some tricks are well-rehearsed...
7 months ago
Maker culture has always been a major part of magic performance. Some tricks are well-rehearsed slight of hand, but many of them rely on clever engineering to sell an illusion. And modern technology offers a great deal of interesting possibilities. That is the idea behind Peter...
Vitalik Buterin's...
El recurso escaso más importante es la legitimidad
over a year ago
Louwrentius
'Tool of the month: iftop - advanced bandwidth monitoring'
The utility iftop allows you to monitor bandwidth usage. It is in some
sense similar to tools like...
over a year ago
The utility iftop allows you to monitor bandwidth usage. It is in some
sense similar to tools like iptraf, dstat and bwm-ng. Iftop is more special
than those. Because iftop lets you monitor the speed of individual TCP / UDP
connections. Basically, you will be able to determine...
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...
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...
computers are bad
2023-11-19 Centrex
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened...
a year ago
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened to "PBX" in today's world where the "automatic" is
implied. (Relatively) modern small and medium business PABXs of the type I like
to collect are largely solid-state devices that...
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...
Simply Explained
Home Energy Monitor: V2
My DIY home energy monitor has been running for almost a year now. It's been recording my...
over a year ago
My DIY home energy monitor has been running for almost a year now. It's been recording my electricity consumption every second and everything is neatly archived in my AWS account.Still, though, there is room for improvement. It's time to look back, evaluate & improve the design....
./techtipsy
DIY cloud gaming: NVIDIA and Moonlight
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming...
over a year ago
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming setup running. I have one powerful desktop PC, one virtual machine with a GPU attached
to it, and client machines that can be used to stream games from. To keep things simple (and...
Vitalik Buterin's...
Making Ethereum alignment legible
3 months ago
Applied Cartography
Notebook as marketing primitive
Earlier this week, I stumbled upon this brilliant marketing-slash-documentation idea from...
2 months ago
Earlier this week, I stumbled upon this brilliant marketing-slash-documentation idea from SingleStore — notebooks as a first-party page! There are a handful of nice things about this idea:
Very easy to fan out. You're not going to really run out of sample notebooks from which you...
Gwern.net Newsletter
October 2020 news
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization &...
over a year ago
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization & improvement.
./techtipsy
How I treat my urge to hoard data
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized...
over a year ago
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized that the pursuit to hoard all the things will just keep
on consuming more and more of my time and money. Storage is cheap up until to a
point, once you find yourself tracking hard...
Louwrentius
'Linux: show graphical layout of disk temperatures'
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a...
over a year ago
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a small
script. The output of this script looks like this:
This output is tailored to the exact disk lay-out of my storage
server. However, it is also usable for other servers. You have to...
Jonas Hietala
Offset coordinates in Krita with Xinerama
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want...
over a year ago
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want to learn how to draw. And what better way to do it than with a drawing tablet, while satisfying my need for new things?
With little experience I boldly set forth and I found a...
Ken Shirriff's blog
Inside an unusual 7400-series chip implemented with a gate array
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple...
9 months ago
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple die,
implemented in a straightforward, cost-effective way.
However, when I looked inside a military-grade chip built by Integrated Device Technology (IDT)4
I found a very unexpected...
Jonas Hietala
March Theme: 10 seconds
Well well here’s something interesting. The Experimental Gameplay Project has given us a really...
over a year ago
Well well here’s something interesting. The Experimental Gameplay Project has given us a really interesting thing to focus on: Time. Like Braid, it’s time for us to make something interesting with time itself. 10 seconds is the constraint and that’s not a lot, but perhaps enough?
Jonas Hietala
Rewriting my blog in Rust for fun and profit
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think...
over a year ago
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think I used Jekyll and also more dynamic pages with Mojolicious in Perl and Kohana in PHP, but I can’t be completely sure as the git history doesn’t go back that far.
But all good...
Matt Blewitt
7 Databases in 7 Weeks for 2025
I’ve been running databases-as-a-service for a long time, and there are always new things to keep...
a month ago
I’ve been running databases-as-a-service for a long time, and there are always new things to keep abreast of - new technologies, different ways of solving problems, not to mention all the research coming out of universities. In 2025, consider spending a week with each of these...
Home on Erik...
Exploding offers are bullshit
I do a lot of recruiting and have given maybe 50 offers in my career. Although many companies do, I...
over a year ago
I do a lot of recruiting and have given maybe 50 offers in my career. Although many companies do, I never put a deadline on any of them. Unfortunately, I've often ended up competing with other companies who do, and I feel really bad that this usually tricks younger developers...
On Life and Lisp
Vulkan 1.3 on the M1 in 1 month
u{text-decoration-thickness:0.09em;text-decoration-color:skyblue}
Finally, conformant Vulkan for the...
7 months ago
u{text-decoration-thickness:0.09em;text-decoration-color:skyblue}
Finally, conformant Vulkan for the M1! The new “Honeykrisp” driver is
the first conformant
Vulkan® for Apple hardware on any operating system, implementing the
full 1.3 spec without “portability”...
GitButler
GitButler is joining the Open Source Pledge
GitButler is joining the Open Source Pledge to help move towards a more sustainable open source...
4 months ago
GitButler is joining the Open Source Pledge to help move towards a more sustainable open source ecosystem.
Notes on software...
Metaprogramming in Zig and parsing CSS
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it....
a year ago
I knew Zig supported some sort of reflection on types. But I had been
confused about how to use it. What's the difference between
@typeInfo and @TypeOf? I ignored this aspect of Zig until a
problem came up at work where reflection
made sense.
The situation was parsing and storing...
Jonas Hietala
New Year, New Theme: 100 Things
Happy New Year, Everyone! 2009 was great in many ways; I drove a submarine (yeah quite literally), I...
over a year ago
Happy New Year, Everyone! 2009 was great in many ways; I drove a submarine (yeah quite literally), I released 6 experimental games and recently I discovered the completely amazing game Evil Genius but lets try to make 2010 even better!
So let’s forget our small mishaps (yes I’m...
Applied Cartography
My approach to GTD and PKM
One pernicious thing with writing about productivity and knowledge systems: you only change systems...
2 months ago
One pernicious thing with writing about productivity and knowledge systems: you only change systems that aren’t working, and you tend to write about things during times of change. So most writing about productivity systems stem from people whose systems have failed them.
It is...
Louwrentius
Monitor power usage with your UPS
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how...
over a year ago
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how much power it consumes. For this purpose, I wrote a
small script:
Host:~# ./ups.sh
UPS model: Back-UPS RS 1200 LCD
APC model: Back-UPS RS 1200 LC
Capacity: 720 Watt
Load: 18...
On Life and Lisp
The Apple GPU and the Impossible Bug
In late 2020, Apple debuted the M1 with Apple’s GPU architecture, AGX, rumoured to be derived from...
over a year ago
In late 2020, Apple debuted the M1 with Apple’s GPU architecture, AGX, rumoured to be derived from Imagination’s PowerVR series. Since then, we’ve been reverse-engineering AGX and building open source graphics drivers. Last January, I rendered a triangle with my own code, but...
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.
Applied Cartography
Git one-liner: get the earliest commit from X hours ago
I wanted to get a commit that was temporally some distance back as part of my experimentation with...
7 months ago
I wanted to get a commit that was temporally some distance back as part of my experimentation with git cliff. This took some time to do, but here's what I ended up with:
git log --since="72 hours ago" --until="now" --reverse --pretty=format:"%h" | head -1
Nothing particularly...
Arduino Blog
Adding voice commands to a LEGO planetarium set with an Arduino Nano 33 IoT
From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning...
5 months ago
From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning and creative experiences, and for Electromaker’s Robin Mitchell, this was the LEGO planetarium set. With it, rotational input will cause the Earth and moon models to orbit around the...
Notes on software...
Container scheduling strategies for integration testing 14 different databases in Github Actions
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Arduino Blog
Arduino Cloud is now available in AWS Marketplace!
We’re excited to announce that Arduino Cloud is now available in AWS Marketplace, making it easier...
3 months ago
We’re excited to announce that Arduino Cloud is now available in AWS Marketplace, making it easier than ever for developers and businesses worldwide to integrate our powerful IoT platform into their AWS infrastructure. This development is particularly relevant for those in...
Abort Retry Fail
The History of Windows 1.0
Vaporware
a year ago
Posts on Made of...
Write testable code by writing generic code
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains...
over a year ago
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains several software engineers nearly as obsessed with software testing as I am):
uhh, so I’m writing some code to handle an econnreset… how do I test this?
This is a good question!...
Home on Erik...
Momentum and mean reversion might just be volatility bias
The Economist just published an article called The best, the worst and the ugly. By looking at...
over a year ago
The Economist just published an article called The best, the worst and the ugly. By looking at historical performance for mutual funds, they find strong support for momentum and mean reversion. Picking the best or the worst fund over the previous five years gives great returns...
Jonas Hietala
Exploring the Gleam FFI
My brain is a curious thing.
I’m on a business trip right now and I’ve set aside time to finish some...
11 months ago
My brain is a curious thing.
I’m on a business trip right now and I’ve set aside time to finish some important todos I want and need to get done.
But instead of focusing on them, I started playing around with Gleam—a young and interesting programming language.
My (current)...
Louwrentius
The downside of 120 Mbit broadband internet
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of...
over a year ago
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of providging 120 Mbit downstream and 10 Mbit upstream, for an affordable price.
In a way this is mind boggling. Most people have 100 Mbit home networks that are not capable of handling...
Electronics etc…
Tektronix TDS 684B Oscilloscope Button Swap
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End...
8 months ago
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End Result
Introduction
I recently bought a TDS 684B for cheap at a government auction. With 1 GHz BW
and 5 Gsps sample rate, it can be used for those cases where my 350 MHz/2Gsps
Siglent...
Arduino Blog
A pair of Arduino UNO R4 boards power this Tron-inspired, decked-out shop room
Bob Clagett of the “I Like to Make Stuff” YouTube channel has recently undertaken an extensive shop...
6 months ago
Bob Clagett of the “I Like to Make Stuff” YouTube channel has recently undertaken an extensive shop renovation project where he is rearranging tools, tidying up various spaces, and even creating a dedicated “clean” room for his collection of 3D printers/electronics work. With its...
Arduino Blog
RIoT Secure joins Arduino’s SIPP as Gold Partner
We are excited to announce that RIoT Secure has joined Arduino’s System Integrators Partnership...
6 months ago
We are excited to announce that RIoT Secure has joined Arduino’s System Integrators Partnership Program at the Gold level. Founded in 2017 in Stockholm, Sweden, RIoT Secure is at the forefront of IoT security, especially in regards to resource-constrained microcontrollers,...
Louwrentius
Lustre and the risk of Serious Data Loss
Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm
interested. So I was...
over a year ago
Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm
interested. So I was thinking about how you would setup a large, scalable
storage infrastructure. How should such a thing work?
Very simple: you should be able just to add hosts with some bad-ass huge...
lcamtuf’s thing
The marvelous disappearing capacitor
The performance of photodiode amplifiers can be improved in a clever way.
3 weeks ago
The performance of photodiode amplifiers can be improved in a clever way.
Arduino Blog
Making a car more secure with the Arduino Nicla Vision
Shortly after attending a recent tinyML workshop in Sao Paolo, Brazil, Joao Vitor Freitas da Costa...
5 months ago
Shortly after attending a recent tinyML workshop in Sao Paolo, Brazil, Joao Vitor Freitas da Costa was looking for a way to incorporate some of the technologies and techniques he learned into a useful project. Given that he lives in an area which experiences elevated levels of...
Vitalik Buterin's...
DAOs are not corporations: where decentralization in autonomous organizations matters
over a year ago
Jonas Hietala
Getting Comfortable
So I physically built the computer and now I’ve been using it a while, configuring stuff and getting...
over a year ago
So I physically built the computer and now I’ve been using it a while, configuring stuff and getting used to my new screens. I think they’re about three times wide as my old laptop and now I have this one huge vertical space which is absolutely wonderful for surfing forums and...
anderegg.ca
A look back at 2024, and what’s next for 2025
At the end of last year, I wrote about wanting to focus on the web in 2024. How did that shake...
3 days ago
At the end of last year, I wrote about wanting to focus on the web in 2024. How did that shake out?
Top level stats
I considered 2023 the first year that I honestly tried getting back into blogging. My goal then was to post something every month, and I managed that with 14 posts...
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...
Applied Cartography
Stripe Sessions 2024
Stripe held the keynote for Sessions, their annual WWDC/re:invent-esque conference, this morning. I...
8 months ago
Stripe held the keynote for Sessions, their annual WWDC/re:invent-esque conference, this morning. I wanted to jot down some thoughts while they’re still fresh. (I think the changelog is the best way to poke around both the changes I’m writing about and the ones that I...
Home on Erik...
New benchmarks for approximate nearest neighbors
UPDATE(2018-06-17): There are is a later blog post with newer benchmarks!
One of my super nerdy...
over a year ago
UPDATE(2018-06-17): There are is a later blog post with newer benchmarks!
One of my super nerdy interests include approximate algorithms for nearest neighbors in high-dimensional spaces. The problem is simple. You have say 1M points in some high-dimensional space.
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...
Home on Erik...
Are data sets the new server rooms?
This blog post Data sets are the new server rooms makes the point that a bunch of companies raise a...
over a year ago
This blog post Data sets are the new server rooms makes the point that a bunch of companies raise a ton of money to go get really proprietary awesome data as a competitive moat. Because once you have the data, you can build a better product, and no one can copy it (at least not...
Abort Retry Fail
The History of OS/2
Getting a Divorce
a year ago
Home on Erik...
Machine, Platform, Crowd
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it...
over a year ago
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it mentions my blog – in particular the post When machine learning matters.
Ok, I lied a little bit. I didn't discover it serendipitously.
Arduino Blog
The end of Mbed marks a new beginning for Arduino
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially...
5 months ago
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially destined to reach end of life in July 2026, and therefore will no longer be maintained. The news has sent ripples through the embedded development community, particularly affecting...
Louwrentius
Is the iPhone OS a threat to our freedom?
There is one fundamental flaw with both the iPhone and the iPad. As a user,
you do not have full...
over a year ago
There is one fundamental flaw with both the iPhone and the iPad. As a user,
you do not have full control over your device. You can only install or run
software that is approved by Apple.
This is something that is unprecedented. All major platforms, Windows, Linux,
Mac OS X do...
Arduino Blog
Ride safer with these DIY bicycle lights
Many people around the world live in cities designed for cars, with bicycle use being a distant...
5 months ago
Many people around the world live in cities designed for cars, with bicycle use being a distant afterthought. That makes cycling dangerous and lights can do a lot to make riding safer. That’s why Giovanni Aggiustatutto designed this DIY system that includes headlights, a...
Home on Erik...
My favorite management failures
For most people straight out of school, work life is a bit of a culture shock. For me it was an...
over a year ago
For most people straight out of school, work life is a bit of a culture shock. For me it was an awesome experience, but a lot of the constraints were different and I had to learn to optimize for different things.
Arduino Blog
Boring rice cooker becomes uruchimai powerhouse
Rice cookers are staple appliances in about half of the world and basic models are very affordable....
5 months ago
Rice cookers are staple appliances in about half of the world and basic models are very affordable. But those are simple machines that are about as “dumb” as electric kettles. The result is often rice that has been sitting in the warming stage for too long, making the bottom...
Louwrentius
Benchmarking cheap SSDs for fun, no profit (be warned)
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now...
a year ago
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now possible to buy a 1TB solid-state drive for less than €60. However, at such low price points, there is a catch.
Although cheap SSDs do perform fine regarding reads, sustained write...
Neil Madden
On PBKDF2 iterations
There has been a lot of discussion recently around the LastPass breach, especially with regards to...
a year ago
There has been a lot of discussion recently around the LastPass breach, especially with regards to the number of PBKDF2 iterations applied to the master password to derive the vault encryption key. Other people have already dissected this particular breach, but I want to more...
Applied Cartography
Notes from April
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past...
8 months ago
Welcome to spring, bona fide and humid. Lots of writing this month:
I wrote about spending the past two years as an independent technologist.
On the media side of things: brief words on Murderville (meh), The Parallax View (incredible), This is Personal (meh), Cribsheet...
csvbase blog
My favourite API is a zipfile on the European Central Bank's website
Simple data pipeline powertools: sqlite, pandas, gnuplot and friends
a year ago
Simple data pipeline powertools: sqlite, pandas, gnuplot and friends
Posts on Made of...
Reader/reader blocking in reader/writer locks
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition...
over a year ago
Abstract In writer-priority reader/writer locks, as soon as a single writer enters the acquisition queue, all future accesses block behind any in-flight reads. Thus, if any readers hold the lock for extended periods of time, this can lead to extreme pauses and loss of throughput...
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.
Computer Ads from...
Bible Research Systems' THE WORD Processor
For Those Who Seek.
5 months ago
Louwrentius
Shunit2, unit testing for shell scripts
This may be of interest to people who are as stupid as I am and write
elaborate shell scripts...
over a year ago
This may be of interest to people who are as stupid as I am and write
elaborate shell scripts instead of using a proper scripting language such as
Python or Ruby. No I am deliberately not mentioning Perl here.
Anyway, testing is always an issue. With PPSS, I encountered many...
Louwrentius
Finding a good blu-ray player for Mac OS X
I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these...
over a year ago
I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these free open-source products are all a usability nightmare.
To play a Blu-ray movie, you have to perform these steps:
right-click on the BDMV file
choose 'show packet contents'
go to...
Opsbros
JSON and PowerShell
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will...
over a year ago
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will allow you to manipulate these objects efficiently.
Style over Substance
Create a Hue-compatible DIY LED light sculpture
Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art,...
over a year ago
Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art, using cheap LED strips and DIY parts you can order online.
The post Create a Hue-compatible DIY LED light sculpture appeared first on Style over Substance.
computers are bad
2024-12-11 travelers information stations
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For...
3 weeks ago
Histories of radio broadcasting often make a particular focus on the most
powerful stations. For historic reasons, WBCT of Grand Rapids, Michigan
broadcasts FM at 320¸000 watts. Many AM stations are licensed to operate at
50,000 watts, but this modern license limit represented a...
lcamtuf’s thing
Lies, damned lies, and photodiodes
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast...
3 weeks ago
Diffusion and drift currents: depending on what you're trying to do, photodiodes can be really fast or infuriatingly slow.
Buck on Software
Vertical Aggregation
I’ve written in the past that I think returns for SaaS won’t be as attractive over the next decade.
over a year ago
I’ve written in the past that I think returns for SaaS won’t be as attractive over the next decade.
Notes on software...
A database without dynamic memory allocation
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Home on Erik...
Business secrets from terrible people
I get bored reading management books very easily and lately I've been reading about a wide range of...
over a year ago
I get bored reading management books very easily and lately I've been reading about a wide range of almost arbitrary topics. One of the lenses I tend to read through is to see different management styles in different environments.
Jonas Hietala
Giving the blog a facelift
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed...
a year ago
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed me:
It wasn’t pretty (even ugly in some parts).
No dark mode support.
Some elements were broken, for instance images or code blocks overlapping the header when it was floating to the...
Louwrentius
Bash Shell Function Library (BSFL) released.
The Bash Shell Function Library (BSFL) is a small Bash script that acts as a
library for bash...
over a year ago
The Bash Shell Function Library (BSFL) is a small Bash script that acts as a
library for bash scripts. It provides a couple of functions that makes the
lives of most people using shell scripts a bit easier.
The purpose of this library is to provide pre-build functions for...
Home on Erik...
The Filter Bubble is Silly and you Can't Guess What Happened Next
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here...
over a year ago
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here was about the filter bubble which prompted me to formalize my own thoughts.
I firmly believe that it's the role of a system to respect the user's intent.
Vitalik Buterin's...
STARKs, Part I: Proofs with Polynomials
over a year ago
Arduino Blog
Two NEW Arduino Plug and Make Kit projects recreate iconic vintage games
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix...
3 months ago
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix of Arduino designers, engineers, and managers to sit down and brainstorm new ideas to have fun with it? Well, at least one of them is guaranteed to come up with an adorable,...
Home on Erik...
Domains for sale
Contact me at mail at erik bern dot com!
over a year ago
Contact me at mail at erik bern dot com!
Posts on Made of...
Implementing a declarative mini-language in the C preprocessor
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time,...
over a year ago
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time, I want to talk about the tricks I used to implement a declarative minilanguage using the C preprocessor (and some GCC extensions).
The Problem We want to write some toplevel...
Louwrentius
'Zabbix Security: client-server communication seems insecure'
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring...
over a year ago
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring hosts, Zabbix provides an agent that can be
installed on the hosts that must be monitored.
Based on the supplied documentation and some remarks on the internets,
the 'security' of...
Jonas Hietala
2019 in Review
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on...
over a year ago
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on the past year, and see that I did indeed do some things, and to look ahead a little.
2019 Non-Geek Achievements
Played around with Isidor.
It’s hard to describe how happy a kid can...
Louwrentius
Understanding Ceph: open-source scalable storage
Introduction
In this blog post I will try to explain why I believe Ceph is such an interesting...
over a year ago
Introduction
In this blog post I will try to explain why I believe Ceph is such an interesting storage solution. After you finished reading this blog post you should have a good high-level overview of Ceph.
I've written this blog post purely because I'm a storage enthusiast and I...
Arduino Blog
Circuit Canvas can help you quickly create illustrated wiring diagrams
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit...
5 months ago
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit designs, but traditional schematics and technical drawings are difficult for non-professionals to interpret and create. Makers can benefit from intuitive illustrations that look good...
Arduino Blog
Receive an alert when your device goes offline in Arduino Cloud
You’re managing a network of IoT sensors that monitor air quality across multiple locations....
a month ago
You’re managing a network of IoT sensors that monitor air quality across multiple locations. Suddenly, one of the sensors goes offline, but you don’t notice until hours later. The result? A gap in your data and a missed opportunity to take corrective action. This is a common...
Old Vintage...
Adding a cooling fan to the Commodore 128DCR
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a...
a year ago
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a hot, horrid summer in Floodgap Very Sub-Orbital Headquarters and I was somewhat concerned about the heat in the house computer lab even with the A/C cranked up to "Vegas weekend for...
Neil Madden
A controversial opinion about REST API design
I was just reading yet another article on REST API design guidelines. Some of it is good advice,...
a year ago
I was just reading yet another article on REST API design guidelines. Some of it is good advice, some of it I could quibble with. But several of the rules are about how to design the path hierarchy of your API: use plural nouns, don’t use nested sub-paths unnecessarily, etc. In...
Jonas Hietala
2021 in review
A new year is always a good time to review the past year. Funny how this is already the 12th year...
over a year ago
A new year is always a good time to review the past year. Funny how this is already the 12th year I’ve done this kind of quick review… Time sure flies.
2021 Non-Geek Achievements
Started strength training using a strength coach from Kabuki.
I got inspired by the book Peak that...
Vitalik Buterin's...
A Quick Gasprice Market Analysis
over a year ago
Vitalik Buterin's...
The Dawn of Hybrid Layer 2 Protocols
over a year ago
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...
somenice
Gold and Ghosts
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest...
2 months ago
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest mountains, searching for a legend as old as the hills: the lost crate of gold. The tale of “Shining Creek Gold” was whispered in every saloon from Seattle to San Francisco, a cache...
Louwrentius
The impact of the MDADM bitmap on RAID performance
Introduction
I'm aware that most people with intensive storage workloads won't run those workloads...
over a year ago
Introduction
I'm aware that most people with intensive storage workloads won't run those workloads on hard drives anymore, that ship has sailed a long time ago. SSDs have taken their place (or 'the cloud').
For those few left who do use hard drives in Linux software RAID setups...
Louwrentius
Creating storage benchmark charts with FIO and GNUplot
Edit 2019: I've made a new tool called 'fio-plot'to create various graphs.
I use FIO to perform...
over a year ago
Edit 2019: I've made a new tool called 'fio-plot'to create various graphs.
I use FIO to perform storage IO performance benchmarks. FIO does provide a script called "fio_generate_plots" which generates PNG or JPG based charts based on the data generated by FIO. The charts are...
Louwrentius
'Linux RAID level and chunk size: the benchmarks'
Introduction
When configuring a Linux RAID array, the chunk size needs to get chosen. But
what is...
over a year ago
Introduction
When configuring a Linux RAID array, the chunk size needs to get chosen. But
what is the chunk size?
When you write data to a RAID array that implements striping (level 0, 5, 6,
10 and so on), the chunk of data sent to the array is broken down in to
pieces, each part...
Home on Erik...
Pareto efficency
Pareto efficiency is a useful concept I like to think about. It often comes up when you compare...
over a year ago
Pareto efficiency is a useful concept I like to think about. It often comes up when you compare items on multiple dimensions. Say you want to buy a new TV. To simplify it let's assume you only care about two factors: price and quality.
Jonas Hietala
2016 in Review
See the previous reviews.
2016 Geek Achievements
Placed 2nd in Linköping’s Regional in...
over a year ago
See the previous reviews.
2016 Geek Achievements
Placed 2nd in Linköping’s Regional in Netrunner.
Won a couple of smaller Netrunner tournaments.
Got Veronica to play Game of Thrones with us. She beat us and she loved it!
Programmed a little bit of Elixir and a tiny bit of front...
Willem's Blog
Cutting Cloud Costs
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud...
a year ago
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud expenses!
Arduino Blog
Arduino partners with RS/OKdo strategically to further expand the China Market
Arduino is excited to announce a strategic new partnership with RS/OKdo, a prominent leader in the...
a month ago
Arduino is excited to announce a strategic new partnership with RS/OKdo, a prominent leader in the distribution of industrial and electronic equipment. This collaboration marks a significant step forward in bringing Arduino’s technology closer to China’s thriving maker community...
Jonas Hietala
Monaco What's Yours is Mine
I’ve been waiting for soon to be three years for Monaco What’s Yours is Mine, and today I was...
over a year ago
I’ve been waiting for soon to be three years for Monaco What’s Yours is Mine, and today I was granted an early christmas present - I was given a beta key! w00p!!
I was planning on studying and sending some emails to some companies… But who knows what I’ll end up doing?
Tomorrow...
Jonas Hietala
Groar
Download
Linux 64bit
Windows
So I actually finished Ludum Dare 33. I can’t believe how hard it was...
over a year ago
Download
Linux 64bit
Windows
So I actually finished Ludum Dare 33. I can’t believe how hard it was to actually make something! It continues to amaze me what fantastic stuff everyone manage to make in just 48 hours. This is what I came up with for the theme You are the Monster....
Bryan Braun - Blog
Why we prefer computers over consoles when introducing kids to gaming
I grew up gaming on consoles like Nintendo 64 and Gamecube. I have a lot of fond memories playing...
10 months ago
I grew up gaming on consoles like Nintendo 64 and Gamecube. I have a lot of fond memories playing games with my brothers on those devices.
But as my own kids have gotten older, my wife and I have decided to first introduce them to gaming with computers, instead of consoles.
The...
Posts on Made of...
Using wpa_supplicant on Debian/Ubuntu
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that...
over a year ago
I’ve been using wpa_supplicant to manage wifi on my Ubuntu laptop for a while, and have found that it’s pretty close to what I want for managing wireless — closer than anything else I’ve found, at least. I figured I should document my setup and experiences.
Some Background You...
Avestura's Blog
Creating a Git commit: The Hard Way
Let's create a Git commit using Git's low-level (plumbing) commands
4 months ago
Let's create a Git commit using Git's low-level (plumbing) commands
Home on Erik...
Norvig's claim that programming competitions correlate negatively with being good on the job
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation...
over a year ago
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation between being good at programming competitions and being good at the job. There were some decent Hacker News comments on it.
Vitalik Buterin's...
Review of Gitcoin Quadratic Funding Round 3
over a year ago
computers are bad
2024-11-23 cablesoft
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful...
a month ago
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful teletext services in the UK and Europe. "Teletext" is
sometimes a confusing term because of its apparent relation to telecom-industry
technologies like the teletypewriter and...
Birchtree
Apple’s 2024 report card: Vision Pro 👓
This is the fifth and final post in a series of posts reviewing Apple’s 2024 across their major...
4 days ago
This is the fifth and final post in a series of posts reviewing Apple’s 2024 across their major product lines. I did this last year and you can read last year’s Vision Pro report card here.
Year one of Vision Pro
This is a bit of
Jonas Hietala
Design for Hackers has arrived!
Design for Hackers
It’s here! After about a month of waiting I’ve finally gotten the book that will...
over a year ago
Design for Hackers
It’s here! After about a month of waiting I’ve finally gotten the book that will make me a design god! Or at least make me aware of something called design. Joking aside I’m really terrible at design and making things look good. Admittedly my programming art...
Louwrentius
'Linux: monitor a directory for files'
Inotify is a mechanism in the Linux kernel that reports when a file system
event occurs.
The...
over a year ago
Inotify is a mechanism in the Linux kernel that reports when a file system
event occurs.
The inotifywait comand line utility can be used in shell scripts to monitor
directories for new files. It can also be used to monitor files for changes.
Inotifywait must be installed and is...
seangoedecke.com RSS...
Writing good technical explanations
Software engineering is mainly learning. There is a great demand for technical explanations, and...
over a year ago
Software engineering is mainly learning. There is a great demand for technical explanations, and many thousands of books, talks and blog…
Notes on software...
Reviewing the Surface Book 2
The first few paragraphs cover what I was looking for and what I
considered. Then the review.
Why...
over a year ago
The first few paragraphs cover what I was looking for and what I
considered. Then the review.
Why the Surface Book 2
I used a Macbook throughout my professional career until I had the
choice a few years ago when I started my current job. Here, I ran
Gentoo, then FreeBSD, then...
./techtipsy
Fairphone 5: my heavily biased overview after 58 days of use (and counting)
After months of contemplating I finally pulled the trigger and got myself
a Fairphone 5. The...
10 months ago
After months of contemplating I finally pulled the trigger and got myself
a Fairphone 5. The fact
that iPhone X stopped receiving major iOS updates certainly helped make that decision.
“But why? My Xiaomi/Oneplus/Samsung/other glued-together device is like so much cheaper and...
Old Vintage...
The W65C265SXB gets a SXY case
Don't worry — my favourite single-board computer remains the 6502-based classic MOS/Commodore KIM-1,...
a year ago
Don't worry — my favourite single-board computer remains the 6502-based classic MOS/Commodore KIM-1, and I've got some future projects in the works. But these were recently on sale on Amazon and I couldn't resist getting a little sort-of RPi-sized SBC that runs the 16-bit 65816,...
Applied Cartography
Au revoir, Invoke
It's not quite interesting or noteworthy enough to warrant a full-on essay, but yesterday we...
7 months ago
It's not quite interesting or noteworthy enough to warrant a full-on essay, but yesterday we unshipped the last remaining Invoke commands and ported them over to just.
I think Invoke is a good, cool project, and I wish it well. If you're at the precise intersection of "you have...
anderegg.ca
The trouble with openness
Back in the early 2000s, there was this nebulous idea called the semantic web. It never really went...
a month ago
Back in the early 2000s, there was this nebulous idea called the semantic web. It never really went anywhere, but I found it exciting at the time.
One piece that particularly spoke to me was the notion of including data in websites so that web scrapers could easily get at it....
lcamtuf’s thing
The 8-bit (MCU) manifesto
Eight-bit microcontrollers aren't relics; they are a design philosophy. You might want to use them...
6 months ago
Eight-bit microcontrollers aren't relics; they are a design philosophy. You might want to use them more.
Jonas Hietala
Starcraft 2 Keycaps
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure...
over a year ago
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure they cost almost 10x as much as a “regular” one and they didn’t even have these funky multimedia keys, what gives? Did I loose my insanity? It was supposed to give a great typing...
Abort Retry Fail
Housekeeping for 20240309
Super quick updates
9 months ago
Home on Erik...
Missing the point about microservices: it's about testing and deploying independently
Ok, so I have to first preface this whole blog post by a few things:
I really struggle with the...
over a year ago
Ok, so I have to first preface this whole blog post by a few things:
I really struggle with the term microservices. I can't put my finger on exactly why. Maybe because the term is hopelessly ill-defined, maybe because it's gotten picked up by the hype train.
Louwrentius
HighPoint RocketRAID and staggered spinup with Samsung F1
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using...
over a year ago
I have experienced problems using a HighPoint RocketRaid 2320 and 2340 when
they are using 'staggered spinup' in combination with Samsung Spinpoint F1, 1
(one) terrabyte disks.
The problem is that the F1 disks spinup very slowly and often seem to 'hang'
while making ticking...
Home on Erik...
Calculating cosine similarities using dimensionality reduction
This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity...
over a year ago
This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity Computation (DISCO)
I just glanced at the paper, and there's some cool stuff going on from a theoretical perspective. What I'm curious about is why they didn't decide to use...
Vitalik Buterin's...
The promise and challenges of crypto + AI applications
11 months ago
Jonas Hietala
Beginning Programming
I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree...
over a year ago
I read a wonderful post, 3 Things I hate about “beginner” programming books, which I couldn’t agree more with. Basically he has these points:
Too long
Too many examples like “Hello World!”
No answers to exercises.
Nr 1 is a pretty curious one. Even though I think a book is good,...
watchTowr Labs
Pots and Pans, AKA an SSLVPN - Palo Alto PAN-OS CVE-2024-0012 and CVE-2024-9474
It'll be no surprise that 2024, 2023, 2022, and every other year of humanities' existence has been...
a month ago
It'll be no surprise that 2024, 2023, 2022, and every other year of humanities' existence has been tough for SSLVPN appliances.
Anyhow, there are new vulnerabilities (well, two of them) that are being exploited in the Palo Alto Networks firewall and SSLVPN offering, and as ever,...
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