Vitalik Buterin's...
Multidimensional gas pricing
7 months ago
Arduino Blog
Explore e-paper technology with Nano Matter and the new EPDK-Matter from Pervasive Displays
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for...
a week ago
We’re excited to share that Pervasive Displays has just launched the E-Paper Development Kit for Matter! This groundbreaking, self-contained kit is designed to revolutionize how smart home devices use e-paper displays, enhancing user experience while driving down energy...
Avestura's Blog
Using Tor outside of the Tor Browser
This post shows how to run Tor with a simple PowerShell script and use it in other apps like...
over a year ago
This post shows how to run Tor with a simple PowerShell script and use it in other apps like Telegram...
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 5: motor/tachometers
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears...
10 months ago
The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses
gears and cams for its mathematics. It was a key part of military planes such as the F-101 and the F-111 fighters,
computing
airspeed, Mach number, and other "air data".
The rotating...
Jonas Hietala
Resurrection
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not...
over a year ago
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
Jonas Hietala
Extracting schedule information from timeedit
At LIU we use timeedit to track our schedules. Recently they updated their interface and improved...
over a year ago
At LIU we use timeedit to track our schedules. Recently they updated their interface and improved some parts. It’s now possible to create a prenumeration of a collection of courses exported as csv which can then be imported to other calendar apps. But they also started to...
Willem's Blog
Vision Pro
My thoughts on using Vision Pro to get some real work done, exploring what Spatial Computing means...
10 months ago
My thoughts on using Vision Pro to get some real work done, exploring what Spatial Computing means and how it can be useful.
Arduino Blog
Coolest controllers ever? Icy gamepads melt in users’ hands
Nintendo’s Joy-Con controller system is very innovative and generally well-regarded, with one major...
5 months ago
Nintendo’s Joy-Con controller system is very innovative and generally well-regarded, with one major exception: stick drift. That’s a reliability issue that eventually affects a large percentage of Joy-Cons, to the frustration of gamers. But what if that was intentional and...
computers are bad
2023-03-24 docker
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a...
a year ago
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a lot of advantages. But I am supposedly a DevOps
professional, and so I will occasionally indulge in giving DevOps advice... or
at least opinions, which are sort of like advice but...
Old Vintage...
What the KIM-1 really needs is an LCD screen
Giving the 1976 1K RAM, 1MHz 6502-based KIM-1 single-board computer bubble memory storage was all...
a year ago
Giving the 1976 1K RAM, 1MHz 6502-based KIM-1 single-board computer bubble memory storage was all well and good, but the basic unit is still just six numeric LEDs for its display. Let's solve that problem.
Sure, you could hook up a serial terminal like the Silent 700 we used...
Good Enough
Our ChatGPT Mission Statement
What follows is an edited transcript of my interaction with ChatGPT to help craft a mission...
a year ago
What follows is an edited transcript of my interaction with ChatGPT to help craft a mission statement for Good Enough.
The resulting mission statement was surprisingly good and I had some literal LOLs along the way.
Though I think we'll leave out the haiku.
You are an expert at...
Arduino Blog
Introducing Arduino Academy: your path to becoming an Arduino-Certified Engineer begins!
Want to upgrade your skills and become a certified Arduino engineer? Welcome to the Arduino Academy,...
a month ago
Want to upgrade your skills and become a certified Arduino engineer? Welcome to the Arduino Academy, the go-to platform for hands-on, interactive learning designed to prepare you for the future of technology. Whether you’re just starting or looking to advance your career, the...
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...
Posts on Made of...
Automounting sshfs
For some time now, many of us around MIT have noticed just how awesome sshfs is. It gives a totally...
over a year ago
For some time now, many of us around MIT have noticed just how awesome sshfs is. It gives a totally lightweight way to access the remote filesystem of any machine you have ssh to, without requiring any extra setup on the host. I’ve been running for at least a year now with my...
Jonas Hietala
ghc 8.8.3 cannot find cabal 3.0.0.0 packages
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system...
over a year ago
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system it suddenly stopped working. I installed my dependencies with cabal install xmonad, and checked that it’s installed under ~/.cabal:
$ ls .cabal/bin/
xmonad@
But still when I...
Matt Mullenweg
Carmack & Rogan
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on...
3 weeks ago
I guess something has changed with the Joe Rogan / Spotify deal and now all the old episodes are on YouTube again, which means the gems from the archives can now pop up. I was alerted to this conversation between Joe Rogan and John Carmack, and it’s pure gold. I know I’m five...
Jonas Hietala
Why Cryptocurrencies? is now available in print
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve...
over a year ago
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve undertaken.
My book ‘Why Cryptocurrencies?’ is released in print today! It’s my attempt to explain what cryptocurrencies are and what problems they solve, in a simple and...
computers are bad
2024-11-23 cablesoft
As an American, I often feel an intense jealousy of Ceefax, one of several
commercially successful...
4 weeks 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...
Yazin Alirhayim
Getting started with Flutter
It used to be that you needed to know Kotlin and Swift to develop apps for both Android and iOS, but...
over a year ago
It used to be that you needed to know Kotlin and Swift to develop apps for both Android and iOS, but those days are long gone.
Even the fundamental reasons for doing so have changed — some sort of compromise between performance and speed to deployment. React Native apps were...
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...
2 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...
Jonas Hietala
How I wrote a book using Pollen
I wrote an online book using Pollen, a static site generator in Racket. An earlier post contains my...
over a year ago
I wrote an online book using Pollen, a static site generator in Racket. An earlier post contains my first impressions of it, but as the book is now completed I think I can summarize some implementation details in more detail with this post.
I really like the markup language and...
Home on Erik...
NYC subway math
Apparently MTA (the company running the NYC subway) has a real-time API. My fascination for the...
over a year ago
Apparently MTA (the company running the NYC subway) has a real-time API. My fascination for the subway takes autistic proportions and so obviously I had to analyze some of the data. The documentation is somewhat terrible, but here's some relevant code for how to use the API:
Buck on Software
Thinking incrementally about SaaS
An overview of the key output of the growth software machine
over a year ago
An overview of the key output of the growth software machine
Applied Cartography
Against Against Innovation Tokens
Glyph (whose writing and contributions to the Python ecosystem I am deeply grateful for) wrote...
5 months ago
Glyph (whose writing and contributions to the Python ecosystem I am deeply grateful for) wrote Against Innovation Tokens yesterday:
In 2015, Dan McKinley laid out a model for software teams selecting technologies. He proposed that each team have a limited supply of “innovation...
Home on Erik...
Luigi Presentation @ NYC Data Science, Dec 16, 2014
More Luigi presentations!
over a year ago
More Luigi presentations!
Home on Erik...
Interviewing is a noisy prediction problem
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence...
over a year ago
I have done roughly 2,000 interviews in my life. When I started recruiting, I had so much confidence in my ability to assess people. Let me just throw a couple of algorithm questions at a candidate and then I'll tell you if they are good or not!
Jonas Hietala
Doing some online Personality tests
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own...
over a year ago
For some reason I’ve done a couple of personality tests the last month, mostly to satisfy my own curiosity.
The Braverman Test
Inspired by Charles Poliquin’s visit on The Tim Ferriss Show I tried out the Braverman test to determine my neurotransmitter type. The point Charles...
Old Vintage...
Niklaus Wirth dies
Reported yesterday. The first computer program I remember in school was Apple Presents Apple, which...
11 months ago
Reported yesterday. The first computer program I remember in school was Apple Presents Apple, which was written in UCSD Pascal; the first actual compiler I ever used was Turbo Pascal 5.5 (purloined from a campus NetWare server), and the first actual compiler I ever used on the...
Electronics etc…
An In-Depth Look at the ICE-V Wireless FPGA Development Board
Introduction
The ICE-V Wireless FPGA Board
Preloading the PSRAM with User Data
The Overall Boot...
a year ago
Introduction
The ICE-V Wireless FPGA Board
Preloading the PSRAM with User Data
The Overall Boot Process
UART Console
Getting Started with the ICE-V Wireless Board for Real
Reinstalling or Modifying the ESP32C3 Firmware
The RISC-V Example FPGA Design
Compiling the RISC-V Example...
Jonas Hietala
2022 in review
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice...
a year ago
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice to see that despite a tough year I’ve done some good things.
2022 Non-Geek Achievements
We got our third child!
This time we got a girl to complement our two boys, and I love them...
./techtipsy
Dell Latitude 5411: the Linux compatibility sweet spot
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my...
a year ago
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my article on why I went back to a ThinkPad T430 in 2022.
Or that other time when I got a new HP laptop for testing and got so frustrated that I wrote about it.
Well, today I’m writing...
Simply Explained
HEIC to JPG: Build a Quick Action with Automator
With the release of iOS 11, Apple switched from JPG to HEIC to store your photos. The...
over a year ago
With the release of iOS 11, Apple switched from JPG to HEIC to store your photos. The High-Efficiency Image File Format saves a lot of storage space on your devices while still maintaining your photos' quality. However, it does become problematic if you want to share those files...
Construction Physics
Does All Semiconductor Manufacturing Depend on Spruce Pine Quartz?
Here’s an idea you see spreading across the internet every so often: that all semiconductor and...
a month ago
Here’s an idea you see spreading across the internet every so often: that all semiconductor and solar PV manufacturing depends on extremely pure quartz from the town of Spruce Pine, North Carolina.
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 4. LLVM conditionals and compiling fibonacci
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
3. LLVM
5. LLVM system calls
6. an x86 upgrade
In this post we'll extend the
compiler's LLVM backend to
support compiling conditionals such that we can support...
Jonas Hietala
First impressions of Pollen
After having consumed Practical Typography I took a look at the library he wrote to create books for...
over a year ago
After having consumed Practical Typography I took a look at the library he wrote to create books for the web called Pollen written in Racket. I’ve only used it a little but I feel I can give my first impressions of it.
What I like
The first thing I really like is Pollen enables...
Louwrentius
My home lab server with 20 cores / 40 threads and 128 GB memory
Update fall 2024
I have decided to decomission this machine and it is no longer in use.
As of this...
over a year ago
Update fall 2024
I have decided to decomission this machine and it is no longer in use.
As of this moment, it's replaced by a cluster of four 1L PCs which use about a third of the idle power usage and boot within 20 seconds. The single-core performance of these low-power 1L PCs...
./techtipsy
Oops, I published my drafts!
Those of you who follow my blog using the RSS feed might have seen that new, incomplete posts popped...
10 months ago
Those of you who follow my blog using the RSS feed might have seen that new, incomplete posts popped up around the time
I published my FOSDEM 2024 post.
Oops.
I recently tried looking for an alternative to writing blog posts in IntelliJ and out of all the options I stuck...
Notes on software...
Writing a web server from scratch: 1. HTTP and sockets
Say we have some HTML:
<html>
<body>
<h1>Hello world!</h1>
</body>
</html>
And say we'd...
over a year ago
Say we have some HTML:
<html>
<body>
<h1>Hello world!</h1>
</body>
</html>
And say we'd like to be able to render this page in a web browser. If
the server is hosted locally we may want to enter
localhost:9000/hello-world.html in the address bar, hit
enter, make a...
Home on Erik...
Storm in the stratosphere: how the cloud will be reshuffled
Here's a theory I have about cloud vendors (AWS, Azure, GCP):
Cloud vendors1 will increasingly...
over a year ago
Here's a theory I have about cloud vendors (AWS, Azure, GCP):
Cloud vendors1 will increasingly focus on the lowest layers in the stack: basically leasing capacity in their data centers through an API. Other pure-software providers will build all the stuff on top of it.
Vitalik Buterin's...
STARKs, Part 3: Into the Weeds
over a year ago
Vitalik Buterin's...
My 40-liter backpack travel guide
over a year ago
Applied Cartography
You need to be frictionlog-maxxing
Lots of people have spent the past few days discussing the perceived increase in difficulty in...
7 months ago
Lots of people have spent the past few days discussing the perceived increase in difficulty in getting an entry-level programming job relative to the halcyon ZIRP days of yesteryear. I am sympathetic to new grads running into this; I am dismayed that when I ask some [1] of them...
Notes on software...
Emulating linux/AMD64 userland: interpreting an ELF binary
In this post we'll stumble toward a working emulator for a barebones C
program compiled for...
over a year ago
In this post we'll stumble toward a working emulator for a barebones C
program compiled for linux/AMD64. The approach will be slightly more
so based on observation than by following a spec; a great way
to quickly become familiar with a topic, and a bad way to...
Birchtree
My default apps of 2024
Last year I was the 27th of four hundred and freaking eight people to write about their default...
5 hours ago
Last year I was the 27th of four hundred and freaking eight people to write about their default apps, and I though it would be fun to turn this into a tradition and revisit the list to see if anything has changed since last year.
✨ next to each change
Louwrentius
Recycle your old laptop display and turn it into a monitor
During a cleaning spree I decided that it was time to recycle two old laptops that were just...
over a year ago
During a cleaning spree I decided that it was time to recycle two old laptops that were just collecting dust on a shelf for many years. Although I didn't have any purpose for them anymore, I realised that the displays were still perfectly fine.
This is the display of my old 13"...
Old Vintage...
The Hall SC-VGA-2 video processor, the Atari ST and NeXTSTEP: more tales of the unscreenshotable
A periodic fascination on this blog is figuring out better ways to get better screenshots of our...
3 weeks ago
A periodic fascination on this blog is figuring out better ways to get better screenshots of our classic systems, which often hail from the Wild Wild West/East in terms of video standards (read all entries in this series). Naturally the best way is a bitwise direct grab of the...
Simply Explained
Smart lights behind a wall switch (Shelly + ESPHome)
Using smart light bulbs means you can no longer use your physical wall switches because the bulbs...
over a year ago
Using smart light bulbs means you can no longer use your physical wall switches because the bulbs need constant power. I think that's pretty dumb. Using a physical switch can be way faster than using an app to control the lights.Here's how you can put a Shelly in between the...
Good Enough
Good Enough, A Serious Business
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you...
a year ago
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you a bit about how Good Enough came to be and what we plan on doing here.
Barry and I started working together again in early 2022. By “work,” I mean that I’d show up on Slack for a...
Arduino Blog
Patrol the pool with this Arduino Nano-powered DIY RC submarine
There is something inherently intriguing about submarines that doesn’t seem to apply to other...
4 months ago
There is something inherently intriguing about submarines that doesn’t seem to apply to other vehicles. Maybe that reflects our natural fears and phobias, or maybe it is a result of our curiosity about the mysterious depths. Maybe it is simply that most of us will never get the...
Vitalik Buterin's...
La votación mediante blockchain está sobrevalorada entre personas desinformadas pero subestimada...
over a year ago
Lars Lofgren
The Sleazy World of Reddit Marketing, Everything is Fake
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of...
4 months ago
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of dollars per month for doing nothing. Maybe tens of thousands. With a 100% real example. I’ve edited nothing. When you’re a Reddit mod, you have a TON of power in that subreddit. You...
Home on Erik...
Functional programming is the libertarianism of software engineering
This is a pretty dumb post, in which I argue that functional programming has a lot of the bad parts...
over a year ago
This is a pretty dumb post, in which I argue that functional programming has a lot of the bad parts of libertarianism and a lot of the good parts:
Both ideologies strive to eliminate [the] state.
Jonas Hietala
Microfeatures in my blog
xkcd: Nerd sniping
A while I ago I encountered a blog post called Microfeatures I Love in Blogs and...
5 months ago
xkcd: Nerd sniping
A while I ago I encountered a blog post called Microfeatures I Love in Blogs and Personal Websites, and together with the related Hacker News discussion I got nerd sniped.
(I spent more time than I care to admit implementing new and exciting microfeatures for...
Arduino Blog
This miniature monorail stays upright with the help of gyro stabilization
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is...
3 months ago
Most monorail systems, like the kind at Disney and in Las Vegas, stay upright because the “rail” is actually a very wide beam. The car’s load tires (often literal truck or trailer tires) roll on top of that beam and guide tires clamp the sides of the beam, preventing the car from...
Abort Retry Fail
The History of Windows NT 4
Taking the Server Market
a year ago
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.
Willem's Blog
No, I Won't Build That!
Discover how saying 'no' can lead to more innovative and meaningful work in this blog post: "No, I...
9 months ago
Discover how saying 'no' can lead to more innovative and meaningful work in this blog post: "No, I Won't Build That!"
Jonas Hietala
How I made a kick-ass cover for my self-published book
If you want to publish a book, one of the most important things to consider is the cover—after all,...
over a year ago
If you want to publish a book, one of the most important things to consider is the cover—after all, we judge the book by the cover.
And I did it the universally recommended way:
I hired a designer.
Simple, right?
But real talk; it’s not exactly that simple and I did a bunch of...
csvbase blog
From Shell to Excel - with a little bit of HTTPS
Write once, read everywhere
4 months ago
Write once, read everywhere
Birchtree
When do the Trump flags come down? (members post)
The flags are still flying, celebrating the man, not the country. Why is this something that happens...
a week ago
The flags are still flying, celebrating the man, not the country. Why is this something that happens now, and why is it something only happening on one end of the political spectrum?
Matt Mullenweg
CNBC on WP Engine
Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP...
2 months ago
Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP Engine: Why WordPress [co-]founder Matt Mullenweg has gone ‘nuclear’ against tech investing giant Silver Lake.
Lighthouse Blog
Updates December 01: UX improvements
a year ago
Matt Mullenweg
Bezos at Dealbook
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew...
2 weeks ago
It looks like the Dealbook Summit had a number of great interviews this year, major props to Andrew Ross Sorkin, but this one with Jeff Bezos was particularly good.
csvbase blog
There are 665 open licences, most are pretty rubbish
you are in a maze of twisty licences, all alike
3 months ago
you are in a maze of twisty licences, all alike
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a...
over a year ago
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a database/sql driver
In this series we'll write a rudimentary database from
scratch in Go. Project source code is available on
Github.
In this first post we'll build enough of a parser to...
Posts on Made of...
Systems that defy detailed understanding
Last week, I wrote about the mindset that computer systems can be understood, and behaviors can be...
over a year ago
Last week, I wrote about the mindset that computer systems can be understood, and behaviors can be explained, if we’re willing to dig deep enough into the stack of abstractions our software is built atop. Some of the ensuing discussion on Twitter and elsewhere lead me to write...
./techtipsy
The minimum viable fan control script
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as...
over a year ago
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as writing crappy
solutions to make up for
deficiencies on the hardware level. After years of dumb experiments I’ve seen
how little you can get away with in cooling and how to run your...
Arduino Blog
Amassing a mobile Minion militia
Channeling his inner Gru, YouTuber Electo built a robotic minion army to terrorize and amuse the...
4 months ago
Channeling his inner Gru, YouTuber Electo built a robotic minion army to terrorize and amuse the public in local shopping malls. Building one minion robot is, in theory, pretty straightforward. That is especially true when, like these, that robot isn’t actually bipedal and...
Jonas Hietala
Default audio card in linux
There are a bunch of posts about making your audio work by default in Linux but none that just...
over a year ago
There are a bunch of posts about making your audio work by default in Linux but none that just worked for me.
I had three separate problems:
Getting sound
Playing sound from multiple sources at the same time
Audio card getting different numbers on reboot
Getting sound
Here I...
Simply Explained
Integrate Home Assistant with Apple Reminders
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos....
over a year ago
I recently integrated Home Assistant with Apple Reminders so that automations can create new todos. This is trickier as it sounds, because Reminders has no API that can be accessed from Home Assistant. Here's how I worked around that problem with a script, input text helper and...
./techtipsy
I held a talk about my self-hosting adventure!
There are two reasons why I haven’t written much lately, and one of them is that I was cooking up...
a year ago
There are two reasons why I haven’t written much lately, and one of them is that I was cooking up a
talk about self-hosting, more specifically my own self-hosting adventure (the other one is the Steam Deck, more about
that in the future).
The talk took place on May 25th 2023 at...
computers are bad
2023-08-07 STIRred AND SHAKEN
In a couple of days, I pack up my bags to head for DEFCON. In a rare moment of
pre-planning, perhaps...
a year ago
In a couple of days, I pack up my bags to head for DEFCON. In a rare moment of
pre-planning, perhaps spurred by boredom, I looked through the schedule to see
what's in store in the world of telephony. There is a workshop on SS7, of
course [1], plenty of content on cellular, but...
Simply Explained
How I Built an NFC Movie Library for my Kids
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to...
a year ago
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to today, and my children's movie collection is vastly different. It's completely digital and dispersed across services. I wanted to recreate the tangible magic of my childhood for them.
Louwrentius
Debian Linux Preseeding - an installation framework
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully...
over a year ago
Look Ma!
No hands!
just watching a system PXE-boot and install itself into a fully operational
system is fun. PXE boot and preseeding is not enough however to accomplish
this.
By itself, preseeding only installs a basic operating system. Next, you need
to configure all sorts of...
Style over Substance
CANARY Corrugated Cardboard Cutter
The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases...
over a year ago
The CANARY corrugated cardboard cutter is definitely in my top 10 list of most useful purchases ever. During the COVID-19 lockdowns, we all started shopping online a lot more. The number of cardboard boxes in our house basically quadrupled overnight and cutting them down to size...
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...
a month 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...
Applied Cartography
Fathom
I'd been meaning to jot down some thoughts on Fathom for a while, and did not have a particularly...
2 weeks ago
I'd been meaning to jot down some thoughts on Fathom for a while, and did not have a particularly good reason to do so until the news broke that Paul Jarvis was selling his share of the company to Jack Ellis, the technical co-founder. [1]
Anyway, the two thoughts:
I think Fathom...
Home on Erik...
It's called Berkson's paradox!
As noted by multiple tweets, my previous post describes a phenomenon denoted Berkson's...
over a year ago
As noted by multiple tweets, my previous post describes a phenomenon denoted Berkson's paradox.
Here's another example: Why Are Handsome Men Such Jerks?
Computer Ads from...
Bible Research Systems' THE WORD Processor
For Those Who Seek.
5 months ago
./techtipsy
btrbk is awesome
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use...
over a year ago
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use the btrfs file system for my operating system and my data.
Snapshots are one half of my “whoops, there goes all my work” strategy (backups
are the other half).
I’ve written about...
Buck on Software
Category velocity
People make decisions, not businesses.
over a year ago
People make decisions, not businesses.
Computer Ads from...
MacWorld Interviews Apple CEO John Sculley (1987)
They discuss the future of Apple, personal computing, and the Mac II
a month ago
They discuss the future of Apple, personal computing, and the Mac II
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...
Home on Erik...
Books I consumed in 2017
Turns out having a toddler isn't super compatible with reading. I used to read ~100 books/year as a...
over a year ago
Turns out having a toddler isn't super compatible with reading. I used to read ~100 books/year as a teenager, but it has slowly deteriorated to maybe 20-30 books, at most. And I don't even finish all of them because life is too short!
Willem's Blog
Different ways to visualise health
To better understand how to visualise health I looked at different health/fitness apps and games.
over a year ago
To better understand how to visualise health I looked at different health/fitness apps and games.
Matt Mullenweg
Kindness and Techcrunch Disrupt
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their...
a month ago
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their awesome non-profit kindness.org. You can listen to it through Pocket Casts here: This is kind of funny because I’m obviously in the midst of the big battle with Silver Lake and WP...
Notes on software...
In response to a frontend developer asking about database development
This is an external post of mine. Click
here
if you are not redirected.
a year ago
This is an external post of mine. Click
here
if you are not redirected.
Computer Ads from...
Ergotron's MacTilt
MacTilt is the Solution
3 weeks ago
Willem's Blog
Fietselfstedentocht 2017
Cycling the 235KM long Fietselfstedentocht through Friesland
over a year ago
Cycling the 235KM long Fietselfstedentocht through Friesland
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...
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).
Louwrentius
Why I Do Use ZFS as a File System for My NAS
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system...
over a year ago
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system for my 18 TB NAS.
You have to understand that at the time, I believe the arguments in the article were relevant, but much has changed since then, and I do believe this article is...
Posts on Made of...
Wordpress tricks: Disabling editing shortcuts
One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t...
over a year ago
One of the major reasons I can’t stand webapps is because I’m a serious emacs junkie, and I can’t edit text in anything that doesn’t have decent emacs keybindings.
Fortunately, on Linux, at least, GTK provides basic emacs keybindings if you add
gtk-key-theme-name = "Emacs" to...
Abort Retry Fail
The History of Windows 1.0
Vaporware
a year ago
lcamtuf’s thing
A 15-minute intro to hobby CNC
In which the author tilts at windmills for a brief while.
3 months ago
In which the author tilts at windmills for a brief while.
Applied Cartography
Peak Newsletter
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to...
5 months ago
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to admit this (I don't want more competition lol) but I think we're still probably a year or two away from Peak Newsletter. It's just a really good distribution mechanism for certain...
Gwern.net Newsletter
April 2020 gwern.net newsletter
This is the April 2020 edition of the gwern.net newsletter; previous, March 2020 (archives).
over a year ago
This is the April 2020 edition of the gwern.net newsletter; previous, March 2020 (archives).
Posts on Made of...
Transformers for software engineers
Ever since its introduction in the 2017 paper, Attention is All You Need, the Transformer model...
over a year ago
Ever since its introduction in the 2017 paper, Attention is All You Need, the Transformer model architecture has taken the deep-learning world by storm. Initially introduced for machine translation, it has become the tool of choice for a wide range of domains, including text,...
Ken Shirriff's blog
Inside a vintage aerospace navigation computer of uncertain purpose
I recently obtained an aerospace computer from the early 1970s, apparently part of a navigation...
6 months ago
I recently obtained an aerospace computer from the early 1970s, apparently part of a navigation system.
Aerospace computers are an interesting but mostly neglected area of computer hardware, so I'm always delighted to
examine one up close.
In an era when most computers were large...
./techtipsy
Steam Deck: I like it
I got a Steam Deck.
Only took me a year or so of contemplating getting
one, and trying out HoloISO,...
6 months ago
I got a Steam Deck.
Only took me a year or so of contemplating getting
one, and trying out HoloISO, the unofficial SteamOS installer
finally convinced me to get one.1
It took another year to actually get down to writing down my thoughts on it.
This post is written from the...
Notes on software...
Writing an efficient object previewer for JavaScript
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Engineers Need Art
Stereographer
Experimenting in stereo photography and I write an app to create old-fashioned stereoscopic cards.
4 months ago
Experimenting in stereo photography and I write an app to create old-fashioned stereoscopic cards.
Good Enough
Why We're Writing Blog Software
We’re seven months into our Cosmic Maelstrom
and we have started writing blogging software.
What the...
a year ago
We’re seven months into our Cosmic Maelstrom
and we have started writing blogging software.
What the why?!
First, let me say that, yes, I do realize there are probably 100s of blog software options out there.
In terms of static-site generators (SSGs) alone, there are probably...
Home on Erik...
How to set compensation using commonsense principles
Compensation has always been one of the most confusing parts of management to me. Getting it right...
over a year ago
Compensation has always been one of the most confusing parts of management to me. Getting it right is obviously extremely important. Compensation is what drives our entire economy, and you could look at the market for labor as one gigantic resource-allocating machine in the same...
Arduino Blog
This automatic laser turret keeps the cats entertained for hours
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their...
2 months ago
Cats may be adorable, but they evolved to be predators. Unfortunately, responsible owners keep their cats indoors to avoid decimating the local wildlife population and that means Mr. Whiskers and Ms. Socks don’t get much opportunity to express their hunting urges. That’s why...
Willem's Blog
Enter text without keys
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a...
over a year ago
Worn on your fingers, the Tap Strap recognises tapping and moving to control and type without a mouse or keyboard!
lcamtuf’s thing
A 15-minute intro to resin casting
At one point in my life, I penned an epic, 110-page opus on hobby manufacturing.
yesterday
At one point in my life, I penned an epic, 110-page opus on hobby manufacturing.
Louwrentius
'lm-sensors: hardware monitoring with the w83627ehf module'
I have two systems that use the w83627ehf driver for hardware monitoring.
However, if this driver is...
over a year ago
I have two systems that use the w83627ehf driver for hardware monitoring.
However, if this driver is installed with a regular modprobe like:
modprobe w83627ehf
The result will be:
FATAL: Error inserting w83627ehf
(/lib/modules/2.6.28-1-amd64/kernel/drivers/hwmon/w83627ehf.ko):...
Jonas Hietala
Netrunner Summer Tournament Linköping
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs...
over a year ago
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs with Old Hollywood and The Universe of Tomorrow so a lot of new things were tried. I heard a rumor that a full playset of both Aesop’s Pawnshop and Wyldside were available so I...
Notes on software...
Errors and Zig
At TigerBeetle these last few weeks I've been doing a mix of
documenting client libraries, writing...
a year ago
At TigerBeetle these last few weeks I've been doing a mix of
documenting client libraries, writing sample code for client
libraries, and writing integration tests against the sample code.
The client library documentation is generated with a Zig script. The
sample code is...
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...
./techtipsy
This page looks better in the app
You’re a web developer at a social media company that has recently made a big push for
modernizing...
over a year ago
You’re a web developer at a social media company that has recently made a big push for
modernizing their frontend for the mobile-first era. It has taken a lot of time and effort from many people.
Countless challenges, arguments, testing.
The release is near. You’re probably a bit...
Jonas Hietala
Bitcoin Cash needs a Specification
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a...
over a year ago
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a bunch of heated debates between the different Bitcoin Cash developer teams. Something that stood out from all the noise was problems with communications and a lack of specification...
Notes on software...
Zig, Rust, and other languages
Having worked a bit in Zig, Rust, Go and now C, I think there are a
few common topics worth having a...
9 months ago
Having worked a bit in Zig, Rust, Go and now C, I think there are a
few common topics worth having a fresh conversation on: automatic
memory management, the standard library, and explicit allocation.
Zig is not a mature language. But it has made enough useful choices
for a number...
Jonas Hietala
Focusing Attention: Programming
These last two weeks have been a small attempt at clearing up my head a bit. I have far too many...
over a year ago
These last two weeks have been a small attempt at clearing up my head a bit. I have far too many things I’d like to do and even if it’s not possible to do them all at once it didn’t stop me from thinking of them. One minute it’s that and the other it’s something completely...
Vitalik Buterin's...
Making Ethereum alignment legible
2 months ago
Old Vintage...
Ward Christensen dies
There was initially some issue verifying this, but there appears to be direct confirmation now that...
2 months ago
There was initially some issue verifying this, but there appears to be direct confirmation now that Ward Christensen passed away October 11 at the age of 78, co-founder of the pioneering Computerized Bulletin Board System in February 1978 with Randy Suess — now believed to be the...
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...
Jonas Hietala
Hearthstone on Wine
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play...
over a year ago
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play it. It didn’t work in vanilla wine, with a “time out error”, but I found a bug report which makes it work. Here’s a short summary:
Get wine source from git. My version was...
Willem's Blog
iPad Pro next to my primary machine
Using iPad Pro with Apple Pencil next to my computer to form a create powerhouse
over a year ago
Using iPad Pro with Apple Pencil next to my computer to form a create powerhouse
Notes on software...
The impact of management teams as a decision-making group, in startups and enterprise
Ambitious companies form management teams at every level above you,
sometimes including you....
over a year ago
Ambitious companies form management teams at every level above you,
sometimes including you. Management teams meet periodically and have
private chat rooms. They discuss customers, product and organizational
direction. Sometimes discussions are well documented and...
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...
Arduino Blog
Top Arduino Cloud IoT dashboard ideas with the new Image widget
Recently, we announced the exciting new Image widget for Arduino Cloud. This powerful feature opens...
2 months ago
Recently, we announced the exciting new Image widget for Arduino Cloud. This powerful feature opens up a world of possibilities for enhancing your IoT dashboards. But the true potential of the Image widget lies in the applications that you create. Today, we’re excited to dive...
Arduino Blog
3D printing an affordable robot arm
If you have an interest in robotics, then a robot arm is a great educational tool to start your...
5 months ago
If you have an interest in robotics, then a robot arm is a great educational tool to start your journey. But professional robot arms are expensive and the DIY route is more informative anyway. That’s especially true if you take the time to design the arm yourself, as did Oliver...
lcamtuf’s thing
The marvelous disappearing capacitor
The performance of photodiode amplifiers can be improved in a clever way.
2 weeks ago
The performance of photodiode amplifiers can be improved in a clever way.
Willem's Blog
Monolithic vs Microservices software architecture
This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn...
over a year ago
This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn about choosing the right architecture for your app development
Louwrentius
Convert dos file to linux format wit vim
If you have some file that has been saved on a (Win)do(w)s host you may notice
that all lines end...
over a year ago
If you have some file that has been saved on a (Win)do(w)s host you may notice
that all lines end with ^M.
To fix this, you can use the tool dos2unix. If however this tool is not at
your disposal, you may have a problem. If vim is available, you do not have a
problem:
The trick...
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...
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...
Odds and Ends of...
Important information if you used my Bluesky MP follows bot
Please read this immediately.
2 weeks ago
Please read this immediately.
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...
Louwrentius
Understanding Storage Performance - IOPS and Latency
Introduction
The goal of this blogpost is to help you better understand storage performance. I want...
over a year ago
Introduction
The goal of this blogpost is to help you better understand storage performance. I want to discuss some fundamentals that are true regardless of your particular needs.
This will help you better reason about storage and may provide a scaffolding for further learning....
Jonas Hietala
A Nice Weekend
I’ve had a pretty nice weekend. On Friday MLG Orlando began and I’ve been staying up to 2 and...
over a year ago
I’ve had a pretty nice weekend. On Friday MLG Orlando began and I’ve been staying up to 2 and sleeping until at least 10 the last days. My inner night-owl is very happy about it, my early-rising girlfriend perhaps not as much, but I think she’s a bit understanding?
On Saturday we...
anderegg.ca
Using WordPress is risky
It’s been a couple of weeks since I last wrote about WordPress. Stuff’s been happening in the...
a month ago
It’s been a couple of weeks since I last wrote about WordPress. Stuff’s been happening in the background, but I’ve been trying to ignore it. This morning I read a story that bothered me enough to require another round of therapy-by-blog-post.
First up, a couple of things that...
Good Enough
Thoughts On Thoughts
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our...
a year ago
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our thoughts and what we believe about them.
Or perhaps we can think of this as an intervention. This post is the circle of friends gathered to help us stop hitting ourselves in the...
Old Vintage...
Refurb weekend: the Symbolics MacIvory Lisp machine I have hated
Every collector has that machine, the machine they sunk so much time and, often, money into that...
2 months ago
Every collector has that machine, the machine they sunk so much time and, often, money into that they would have defenestrated it years ago except for all the aforementioned time and money. Yours truly is no exception.
a future article.) They existed in highly technical...
Applied Cartography
Notes on ActivityPub
By far the single most-fruitful tactic has been "just look at raw GET responses from Mastodon and...
7 months ago
By far the single most-fruitful tactic has been "just look at raw GET responses from Mastodon and see what things are shaped like." I know that "ActivityPub is under-specified" is a bit of a meme, but it's wild how little prior art there is.
Something that gives distinctly bad...
Louwrentius
Script that shows relevant disk information
I wrote a small Python script called 'showdisks' that displays relevant information about any...
over a year ago
I wrote a small Python script called 'showdisks' that displays relevant information about any physical storage devices supported by hdparm.
Information such as model and capacity are shown, but also controller and device path.
This script only requires python and hdparm.
I hope...
Home on Erik...
More Luigi alternatives
The workflow engine battle has intensified with some more interesting entries lately! Here are a...
over a year ago
The workflow engine battle has intensified with some more interesting entries lately! Here are a couple I encountered in the last few days. I love that at least two of them are direct references to Luigi!
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...
Willem's Blog
Three tips to make a content strategy work
Consider these three things to maximise the effect of the words you write for your website, blog or...
over a year ago
Consider these three things to maximise the effect of the words you write for your website, blog or company.
computers are bad
2023-09-10 the Essex GWEN site
Programming note: this post is in color. I will not debase myself to the
level of sending HTML...
a year ago
Programming note: this post is in color. I will not debase myself to the
level of sending HTML email, so if you receive Computers Are Bad by email
and want the benefit of the pictures, consider reading this online instead
(the link is at the top of the email).
In the aftermath of...
Willem's Blog
Increase traffic to your blog with a RSS feed
Using NodeJS I added RSS feeds to my blog as support for feeds can still provide you with value....
over a year ago
Using NodeJS I added RSS feeds to my blog as support for feeds can still provide you with value. Read about the "how" and "why" in this post.
Posts on Made of...
Some opinionated thoughts on SQL databases
People who work with me tend to realize that I have Opinions about databases, and SQL databases in...
over a year ago
People who work with me tend to realize that I have Opinions about databases, and SQL databases in particular. Last week, I wrote about a Postgres debugging story and tweeted about AWS’ policy ban on internal use of SQL databases, and had occasion to discuss and debate some of...
Willem's Blog
Tips for Long-Distance Cycling
Embark on your own long-distance cycling adventure by learning from my post-COVID...
a year ago
Embark on your own long-distance cycling adventure by learning from my post-COVID Fietselfstedentocht experience, packed with invaluable tips and tricks.
Notes on software...
The year in books: 11 to recommend in 2021
Last year (2021) I finished 17 books, a five year low. But that's ok!
4 fiction and 13 non-fiction....
over a year ago
Last year (2021) I finished 17 books, a five year low. But that's ok!
4 fiction and 13 non-fiction. Another 30 started but not finished.
Non-fiction
It seems I was pretty focused on business history books and history of
tech. The 8 non-fiction books I liked the most:
Designing...
Applied Cartography
Auth.js + Square
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the...
7 months ago
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the periphery of your understanding, and a Third South project has led me to spin up a small Next project using Bun [1] and Auth.js (nee next-auth), which has been quite bad and I...
Opsbros
Tasmota Quad Switch Breakout
The Tasmota Quad Switch Breakout is designed to make connecting a custom quad light switch to a...
over a year ago
The Tasmota Quad Switch Breakout is designed to make connecting a custom quad light switch to a Wemos D1 mini running Tasmota super super easy.
Louwrentius
Howto get the hard disk size under Linux?
A: There is no single tool for this job, but it seems that Fdisk is just fine:
server:~# fdisk -l 2>...
over a year ago
A: There is no single tool for this job, but it seems that Fdisk is just fine:
server:~# fdisk -l 2> /dev/null | grep Disk | grep -v identifier
Disk /dev/sda: 500.0 GB, 500028145664 bytes
Disk /dev/sdb: 500.0 GB, 500028145664 bytes
Disk /dev/sdc: 1000.1 GB, 1000123400192...
Good Enough
Season 1, Issue 5: Promotes Regularity
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each...
over a year ago
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each have at least two children in our homes, begging for attention. And we each truly appreciate extended breaks as a means of reinvigorating ourselves to the ever important task of...
Style over Substance
How to build your own Goodman ZONE camera, part 2
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her...
over a year ago
The Goodman ZONE is a medium-format 3D-printed film camera designed by Dora Goodman as part of her range of open-source camera models, using the existing Mamiya Press lens series for glass and the Mamiya RB67 backs to hold film. She sells pre-printed kits that contain all the...
Avestura's Blog
Oversimplified ideas of the great philosophers of all times
Ideas of the great philosophers of all times explained in a few lines
a year ago
Ideas of the great philosophers of all times explained in a few lines
Willem's Blog
Migrating to the Cloud
Helping a customer clear its on-premise data room and migrate to the cloud: an adventure full of...
over a year ago
Helping a customer clear its on-premise data room and migrate to the cloud: an adventure full of cables, cabinets and bandwidth!
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features.
I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Nabeel S. Qureshi
Reflections on Palantir
A retrospective of an eight-year stint.
2 months ago
A retrospective of an eight-year stint.
computers are bad
2024-02-11 the top of the DNS hierarchy
In the past (in fact two years ago, proof I have been doing this for a while
now!) I wrote
about
the...
10 months ago
In the past (in fact two years ago, proof I have been doing this for a while
now!) I wrote
about
the "inconvenient truth" that structural aspects of the Internet make truly
decentralized systems infeasible, due to the lack of a means to perform
broadcast discovery. As a result,...
Jonas Hietala
Ludum Dare 29 Entry
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally...
over a year ago
After months of procrastination it is time for me to enter Ludum Dare again!
I am totally unprepared, but I did setup a setup which actually compiles. I never got audio to run but hopefully I can manage something.
Repository: https://github.com/treeman/LD29. Going for C++ this...
Willem's Blog
Measuring cholesterol levels in blood
This week I had my blood examined to measure my cholesterol levels, taking a lipid profile. Know...
over a year ago
This week I had my blood examined to measure my cholesterol levels, taking a lipid profile. Know your LDL, HDL and Triglycerides numbers with a simple test.
Notes on software...
Implementing a simple jq clone in Go, and basics of Go memory profiling
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of...
over a year ago
In this post we'll build a basic jq clone in Go. It will only be able
to pull a single path out of each object it reads. It won't be able to
do filters, mapping, etc.
$ cat large-file.json | head -n2 | ./jqgo...
Electronics etc…
Fake Parallel Printer - A Parallel Port Traffic Capturing Tool
Introduction
What Is Out There?
The Parallel Printer Port
Fake Printer Top Level Design Choices
Fake...
a year ago
Introduction
What Is Out There?
The Parallel Printer Port
Fake Printer Top Level Design Choices
Fake Printer HW Details
PCB Revision 1
PCB Revision 2
Firmware
Building a Fake Printer Tool Yourself
Programming the Raspberry Pico
Fake Printer as a USB Serial Device on your...
Good Enough
Season 1, Issue 1: The Loneliest Number
1. Confirmed Positive
After two years of running from reality, it has finally happened for my...
over a year ago
1. Confirmed Positive
After two years of running from reality, it has finally happened for my family. I have tested positive for SARS Coronavirus-2, the virus that causes COVID-19. For this honor, I would like to thank our society’s collective tiring of virus mitigation. It truly...
Home on Erik...
Ping the world
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some...
over a year ago
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some notes:
What's going on with Sweden? Too much torrenting? Ireland is likewise super slow, but not Northern Ireland Eastern Ukraine is also super slow, maybe not surprising given...
Applied Cartography
11ty
.njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a...
10 months ago
.njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a good amount. Maybe that's a me thing!
It is extremely fast. This site has around 2300 pages; Eleventy is compiling it in around two seconds.
The extensibility ergonomics are...
Arduino Blog
How makers can use AR and VR
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in...
6 months ago
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in popularity, with the combined market expected to reach $77 billion by 2025, from just $15.3 billion in 2020. For makers, AR and VR represent exciting opportunities to build new...
Vitalik Buterin's...
Why sharding is great: demystifying the technical properties
over a year ago
computers are bad
2024-05-25 grc spinrite
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean,...
7 months ago
I feel like I used to spend an inordinate amount of time dealing with suspect
hard drives. I mean, like, back in high school. These days I almost never do,
or on the occasion that I have storage trouble, it's a drive that has
completely stopped responding at all and there's...
./techtipsy
Tech rants: PC-s use way too much power in 2021
Welcome to 2021. We have:
supply chain issues
no reasonably priced GPU-s
consumer-grade CPU-s with...
over a year ago
Welcome to 2021. We have:
supply chain issues
no reasonably priced GPU-s
consumer-grade CPU-s with peak power consumption at 296W
GPU-s that consume 350-400W of power under normal use
At the same time, we have made great leaps in CPU/GPU architectures and chip manufacturing...
Louwrentius
Lion's FileVault does not support Bootcamp and external boot disks
Read the comments as they may provide useful information for your particular situation
I boot my...
over a year ago
Read the comments as they may provide useful information for your particular situation
I boot my iMac from an external FW800 SSD. I found out that it is impossible to
encrypt this disk using the new FileVault as part of Lion.
Furthermore, I also found out that if you have a disk...
Arduino Blog
On-body LEDs help this guitar rock harder
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that...
6 months ago
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that regard. No, you go to enjoy the show as a whole and that includes the visuals. The more a band can do to make the performance look exciting, the more you’re going to enjoy it. […]
The...
Jonas Hietala
Moving to FastMail
About two years ago after Lavabit’s shutdown I searched for a replacement email provider. For some...
over a year ago
About two years ago after Lavabit’s shutdown I searched for a replacement email provider. For some reason I settled on eumx which I used since then. Yesterday I got an email saying the recurring billing could not be renewed as I had my old credit card registered and it got me...
Lighthouse Blog
Updates September 16: Explore all available articles of a feed
3 months ago
computers are bad
2024-05-06 matrix
For those of you who are members of the Matrix project, I wanted to let you
know that I am running...
7 months ago
For those of you who are members of the Matrix project, I wanted to let you
know that I am running for the Governing Board, and a bit about why. For those
of you who are not, I hope you will forgive the intrusion. Maybe you'll find my
opinions on the topic interesting anyway.
I...
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...
Home on Erik...
The half-life of code & the ship of Theseus
As a project evolves, does the new code just add on top of the old code? Or does it replace the old...
over a year ago
As a project evolves, does the new code just add on top of the old code? Or does it replace the old code slowly over time? In order to understand this, I built a little thing to analyze Git projects, with help from the formidable GitPython project.
Jonas Hietala
September theme: Failure
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon...
over a year ago
I’m out of the busy mode and here’s the new theme! I’ve got an idea and I’ll be beginning very soon I hope and again I’m following Experimental Gameplay Project’s site.
Let’s rock!!
Neil Madden
From KEMs to protocols
This is the third part of my series on Key Encapsulation Mechanisms (KEMs) and why you should care...
over a year ago
This is the third part of my series on Key Encapsulation Mechanisms (KEMs) and why you should care about them. Part 1 looked at what a KEM is and the KEM/DEM paradigm for constructing public key encryption schemes. Part 2 looked at cases where the basic KEM abstraction is not...
Christian Selig
Trials and tribulations of 360° video in Juno
In building Juno, a visionOS app for YouTube, a question that’s come up from users a few times is...
10 months ago
In building Juno, a visionOS app for YouTube, a question that’s come up from users a few times is whether it supports 360° and 180° videos (for the unfamiliar, it’s an immersive video format that fully surrounds you). The short answer is no, it’s sort of a niche feature without...
Simply Explained
ESP32: Keep WiFi connection alive with a FreeRTOS task
I have a few ESP32's running in my house. A few of them are running 24/7 and require an always-on...
over a year ago
I have a few ESP32's running in my house. A few of them are running 24/7 and require an always-on WiFi connection. That's been quite tricky to implement. I used to include various checks throughout my code, but that's not scalable.What I need is something running in the...
Louwrentius
HP Proliant Microserver Gen10 as router or NAS
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine...
over a year ago
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine replaces the older Gen8 model.
For hobbyists, the Microserver always has been an interesting device for a custom home NAS build or as a router.
Let's find out if this is still the case....
Arduino Blog
Introducing Opta Expansions: scalable simplicity!
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and...
7 months ago
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and allowed us to reach PLC engineers with a new solution specifically designed for their needs. To further expand Opta’s capabilities, today the Arduino ecosystem welcomes various...
detreville
Newsletter 1: What's next?
This is the first in a series of newsletters covering this blog
a year ago
This is the first in a series of newsletters covering this blog
Christian Selig
Qi2 is kinda underwhelming
Using MagSafe for portable battery packs has so many niceties versus Qi1:
Increased communication...
8 months ago
Using MagSafe for portable battery packs has so many niceties versus Qi1:
Increased communication with the device, allowing for better efficiency due to better thermal management and charging
Easily view the charge percentage of the external battery when first attaching it, and...
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...
Christian Selig
Logging information from iOS Widgets
Lately users have been emailing me with a few odd things happening with their Apollo iOS 14 home...
over a year ago
Lately users have been emailing me with a few odd things happening with their Apollo iOS 14 home screen widgets, and some well-placed logs can really help with identifying what’s going wrong. iOS has a sophisticated built in logging mechanism, os_log, and now with SwiftLogger in...
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...
computers are bad
2024-04-05 the life of one earth station
Sometimes, when I am feeling down, I read about failed satellite TV (STV)
services. Don't we all?...
8 months ago
Sometimes, when I am feeling down, I read about failed satellite TV (STV)
services. Don't we all? As a result, I've periodically come across a company
called AlphaStar Television Network. PrimeStar may have had a rough life, but
AlphaStar barely had one at all: it launched in...
Lars Lofgren
My 7 Rules for A/B Testing That Triple Conversion Rates
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I...
over a year ago
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I double or triple conversion rates without caring how a test performs? I actually care about the whole SYSTEM of testing. All the pieces need to fit together just right. If not,...
Vitalik Buterin's...
[Mirror] Bir Proof of Stake Tasarım Felsefesi
over a year ago
Notes on software...
Administering Kubernetes is hard
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to...
over a year ago
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to set up.
eksctl is a good tool for folks who don't want to
spend hours/days/weeks debugging VPC configuration in 1000s of lines
of CloudFormation. None of the other tools seem to be...
Posts on Made of...
Three kinds of memory leaks
So, you’ve got a program that’s using more and more over time as it runs. Probably you can...
over a year ago
So, you’ve got a program that’s using more and more over time as it runs. Probably you can immediately identify this as a likely symptom of a memory leak.
But when we say “memory leak”, what do we actually mean? In my experience, apparent memory leaks divide into three broad...
Nabeel S. Qureshi
The Serendipity Machine
Notes on Using Twitter
11 months ago
Good Enough
TIL: Rails Testing
I had to figure out how to run browser-based tests in Rails again. In part that meant working around...
a year ago
I had to figure out how to run browser-based tests in Rails again. In part that meant working around my lack of Chrome. Rails System Tests with Safari.
I also had some problems with Rails Turbo Drive taking over EVERYTHING, which required me to figure out how to deal with a Rails...
Posts on Made of...
Getting carried away with hack value
Recently, I’ve been working on some BarnOwl branches that move more of the core functionality of...
over a year ago
Recently, I’ve been working on some BarnOwl branches that move more of the core functionality of BarnOwl into perl code, instead of C (BarnOwl is written in an unholy mix of C and perl code that call each other back and forth obsessively).
Moving code into perl has many...
Jonas Hietala
Changes
A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but...
over a year ago
A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but there are things I’d like to change after the exam period this week.
Program more!
nothing since christmas or someting. I need to finish:
Ada project for school. Can’t believe I...
Jonas Hietala
I'm writing a book: Why Cryptocurrencies?
I decided to write a book. It’s called “Why Cryptocurrencies?” and I will be uploading chapters as I...
over a year ago
I decided to write a book. It’s called “Why Cryptocurrencies?” and I will be uploading chapters as I complete them. It’s available to read online for free. I’ve only uploaded the introductory parts but I’ve got a bunch more planned.
Why write a book you ask? Well, why not?
I...
Jonas Hietala
An update on my book 'Why Cryptocurrencies?'
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to...
over a year ago
Five months ago I gloriously declared that “my book was done”. Since then I’ve been working hard to finish the book.
Sorry that’s a bit of a lie, I’ve had a nice long vacation where I didn’t work on the book and I’m also on part-time parental leave. And believe me there’s not a...
Jonas Hietala
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...
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...
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...
computers are bad
2023-04-27 los alamos - compound to county pt I
This weekend, I found myself staying in Los Alamos for a volunteer role in
which I judge children on...
a year ago
This weekend, I found myself staying in Los Alamos for a volunteer role in
which I judge children on the quality of their software. Clearly this is not
the kind of opportunity I would turn down, but I also always take an excuse to
drive back up the hill. I only lived in Los...
Posts on Made of...
Distributed cloud builds for everyone
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous....
over a year ago
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous. All the major cloud providers offer generous free tiers, and services like GitHub Actions offer free compute resources to open-source repositories. So why do so many developers...
Arduino Blog
Arduino CLI 1.0 is out!
We are excited to share some incredible news with you all! We recently released the Arduino CLI...
3 months ago
We are excited to share some incredible news with you all! We recently released the Arduino CLI version 1.0.0, marking a significant milestone for our software. This release is a big deal because it signifies the stabilization of the software API, bringing greater reliability and...
Computer Ads from...
Mark Williams' C Programming System
What C did for Programming Mark Williams has done for C Programming
4 months ago
What C did for Programming Mark Williams has done for C Programming
Notes on software...
Build a serverless ACID database with this one neat trick (atomic PutIfAbsent)
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability,...
2 months ago
Delta Lake is an open protocol for serverless ACID databases. Due to
its simplicity, scalability, and the number of open-source
implementations, it's quickly becoming the DuckDB of serverless
transactional databases for analytics workloads. Iceberg is a
contender too, and is...
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.
Jonas Hietala
What's up
It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other...
over a year ago
It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other stuff. I’ve thought about you but I just never really picked up emacs to write to you. I know it’s my fault but I beg of your mercy mr. Blog. You know that I had laid off school for...
Jonas Hietala
Doing Stuff
The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left...
over a year ago
The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left the standard math course behind a bit. Actually more than a bit but hopefully I’ll correct things later.
No my life is going along just fine, it almost feels like my life is runing...
computers are bad
2023-02-17 something up there pt II
As we discussed previously,
the search for UAP is often contextualized in terms of the events of...
a year ago
As we discussed previously,
the search for UAP is often contextualized in terms of the events of 2017:
the public revelation of the AATIP and alien-hunting efforts by Robert Bigelow
and Tom DeLonge. While widely publicized, these programs seem to have lead to
very little. I...
Ken Shirriff's blog
Interesting double-poly latches inside AMD's vintage LANCE Ethernet chip
I've studied a lot of chips from the 1970s and 1980s, so I usually know what to expect.
But an...
11 months ago
I've studied a lot of chips from the 1970s and 1980s, so I usually know what to expect.
But an Ethernet chip from 1982 had something new: a strange layer of yellow wiring on the die.
After some study, I learned that the yellow wiring is a second layer of resistive polysilicon,...
Posts on Made of...
reptyr: Attach a running process to a new terminal
Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an...
over a year ago
Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an existing running program and attaching it to a new terminal. Started a long-running process over ssh, but have to leave and don’t want to interrupt it? Just start a screen, use...
Jonas Hietala
CS:GO AWP Nerf
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I...
over a year ago
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I ever make a game and I want someone to balance it and I had the money, I would hire Thorin.
Good Enough
Strong Prototypes, Weakly Held
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in...
a year ago
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in the Bush of Ghosts by Brian Eno and David Byrne as my soundtrack. This is an album I've never listened to before, and apparently I'm supposed to love it or hate it. Mostly the...
Louwrentius
Benchmarking a 1.44 MB floppy drive
I've used fio - a storage benchmarking tool - to benchmark a 1.44 MB floppy drive to gauge its...
over a year ago
I've used fio - a storage benchmarking tool - to benchmark a 1.44 MB floppy drive to gauge its random I/O performance. I have no real reason for doing this. I just thought it was funny.
I've run a benchmark against the floppy drives for different queue depths. The results are...
Vitalik Buterin's...
La Guía Incompleta de los Rollups
over a year ago
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.
Notes on software...
Delightful, production-grade replication for Postgres
This is an external post of mine. Click
here
if you are not redirected.
4 months ago
This is an external post of mine. Click
here
if you are not redirected.
./techtipsy
Anything's a portable speaker if you're brave enough
I hate buying things that are single-purpose, which is why I ended up with this
setup.
Take a...
a year ago
I hate buying things that are single-purpose, which is why I ended up with this
setup.
Take a speaker, a battery, put them together, and what you now have is a
portable speaker. Since I had access to both, I felt no need to buy a separate
portable speaker for use in social...
Home on Erik...
Some more font links
My blog post about fonts generated lots of traffic – it landed on Hacker News, took down my site...
over a year ago
My blog post about fonts generated lots of traffic – it landed on Hacker News, took down my site while I was sleeping, and then obviously vanished from HN before I woke up. But it also got retweeted by a ton of people.
Vitalik Buterin's...
Binius: highly efficient proofs over binary fields
7 months ago
Willem's Blog
Data versus Feeling
Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to...
4 days ago
Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to find out the differences!
Lighthouse Blog
How to rate content and find it again
6 months ago
detreville
But why "detreville"?
(But why not?)
a year ago
Computer Ads from...
Vote for the April 2004 Plus Post Topic
If you are a paid subscriber, voting is open for one week
8 months ago
If you are a paid subscriber, voting is open for one week
Opsbros
Volumer
I've always wanted a good USB volume control, so I decided to design one.
over a year ago
I've always wanted a good USB volume control, so I decided to design one.
Lighthouse Blog
Deep dive into finding RSS feeds
2 weeks ago
Jonas Hietala
HandCash handles require trust and are insecure
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their...
over a year ago
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their $handle concept. It’s basically a username you use instead of the normal Bitcoin Cash address, similar to how domain names abstract away IP addresses. For example instead of...
Notes on software...
Intercepting and modifying Linux system calls with ptrace
How software fails is interesting. But real-world errors can be
infrequent to manifest....
a year ago
How software fails is interesting. But real-world errors can be
infrequent to manifest. Fault
injection
is a formal-sounding term that just means: trying to explicitly
trigger errors in the hopes of discovering bad logic, typically
during automated tests.
Jepsen
and ChaosMonkey...
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.
Ken Shirriff's blog
The Intel 8088 processor's instruction prefetch circuitry: a look inside
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor.
IBM's...
9 months ago
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor.
IBM's decision to use the 8088 processor in the IBM PC (1981) was a critical point in computer history,
leading to the dominance of the x86 architecture that continues to the present.1
One...
Jonas Hietala
Eduroam for wicd in Linkoping's University
So we have eduroam at our University and unsurprisingly wicd is not on their official support list...
over a year ago
So we have eduroam at our University and unsurprisingly wicd is not on their official support list but with some googling the wonderful Arch Wiki had the answer. Well, almost.
Save the following as /etc/wicd/encryption/templates/ttls-80211:
name = TTLS for Wireless
author =...
Simply Explained
Year in review: 2022
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my...
a year ago
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my YouTube channel and newsletter, but there are personal reflections in here as well. Last year was an off year for me, and I'm gearing up to make up for lost time in 2023.
Willem's Blog
Impact of training
Join me on an intriguing journey as I explore the transformative impact of effective training and...
a year ago
Join me on an intriguing journey as I explore the transformative impact of effective training and data analysis on my performance in the Fietselfstedentocht 2023.
Christian Selig
Announcing Apollo: a new Reddit app for iPhone
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called...
over a year ago
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called Apollo and it’s a new Reddit app for iPhone.
I’ve been a Reddit user for about four years now, and the site is a constant source of interesting discussion, hilarity and news for me...
computers are bad
2024-08-19 mining for meteors
Billboards
Route 66 is often viewed through the lens of its billboards. The Jack Rabbit
Trading...
4 months ago
Billboards
Route 66 is often viewed through the lens of its billboards. The Jack Rabbit
Trading Post, a small store a few miles out of Joseph City, would hardly be
remembered were it not for its billboards spanning four states. The tradition
of far-advance billboards is still...
Neil Madden
API Security in Action is published!
I wasn’t expecting it so quickly, so it caught me a little off guard, but API Security in Action is...
over a year ago
I wasn’t expecting it so quickly, so it caught me a little off guard, but API Security in Action is now finally published. PDF copies are available now, with printed copies shipping by the end of the month. Kindle/ePub take a little bit longer but should be out in a few weeks...
Avestura's Blog
What is the type of Type?
Should type of `Type` be also `Type`? Or is there an alternative?
over a year ago
Should type of `Type` be also `Type`? Or is there an alternative?
Jonas Hietala
No game this month
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack...
over a year ago
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack inspiration and then it’s really hard to do something. Instead I’ve been thinking of something I could do that would make me wanna code like really bad again. I’m thinking of...
Old Vintage...
An Apple district manager's Macintosh Portable in 1989-91 (featuring GEIS AppleLink and a look at...
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than...
9 months ago
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than what it has on it: a beta version of System 6.0.6 (the doomed release that Apple pulled due to bugs), Apple sales databases, two online services — the maligned Mac Prodigy client,...
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...
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...
6 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”...
Avestura's Blog
Understanding zero-knowledge proofs
What are zero-knowledge proofs, really?
over a year ago
What are zero-knowledge proofs, really?
./techtipsy
The little Wi-Fi AP that could
I have a bad habit of testing things whenever a “good” idea pops into my head. This is a short...
over a year ago
I have a bad habit of testing things whenever a “good” idea pops into my head. This is a short overview of one of them.
The Orange Pi Zero is a SBC (single board computer) that has a slow 32-bit ARM 4 core CPU, 512MB of RAM and no display output.
It’s actually quite OK for many...
Louwrentius
The security risk of vendor-supplied default SSL certificates
Often, software comes supplied with some default SSL certificate, for testing
purposes, such as...
over a year ago
Often, software comes supplied with some default SSL certificate, for testing
purposes, such as those 'snake oil' certificates (they are called snake oil
certificates for a reason). In practice, I often encounter usage of such
certificates. People may seem to think that as long...
Home on Erik...
Fun with trigonometry: the world's most twisted coastline
I just spent a few days in Italy, on the Ligurian coast. Even though we were on the west side of...
over a year ago
I just spent a few days in Italy, on the Ligurian coast. Even though we were on the west side of Italy, the Mediterranean sea was to the east, because the house was situated on a long bay.
Vitalik Buterin's...
Review: museums of the future, Dubai and Tokyo
4 months ago
Home on Erik...
What is your motivation?
I've been trying to learn Clojure. I keep telling people I meet that I really want to learn Clojure,...
over a year ago
I've been trying to learn Clojure. I keep telling people I meet that I really want to learn Clojure, but still every night I can't get myself to spend time with it. It's unclear if I really want to learn Clojure or just want to have learned Clojure?
Jonas Hietala
Postmortem: The Chronicles of Bim: The 100 Fake Afros
My first shooter! It’s working (although a friend got a null pointer error) so I’m a little...
over a year ago
My first shooter! It’s working (although a friend got a null pointer error) so I’m a little happy.
The Time
I spent about 24 hours on this game. A whopping 30% was break time, mostly me eating, reading manga or playing games… This is proof of me being really lazy this month I...
Posts on Made of...
Regular Expression Search with Suffix Arrays
Back in January of 2012, Russ Cox posted an excellent blog post detailing how Google Code Search had...
over a year ago
Back in January of 2012, Russ Cox posted an excellent blog post detailing how Google Code Search had worked, using a trigram index.
By that point, I’d already implemented early versions of my own livegrep source-code search engine, using a different indexing approach that I...
Vitalik Buterin's...
Should there be demand-based recurring fees on ENS domains?
over a year ago
Ken Shirriff's blog
Two interesting XOR circuits inside the Intel 386 processor
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a...
a year ago
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching to a CMOS implementation.
I've been reverse-engineering parts of the 386 chip and came across two interesting and completely different
circuits...
Home on Erik...
Annoying blog post
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which...
over a year ago
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which is an open source C++/Python library for Approximate Nearest Neighbor search.
I set up Travis-CI integration and spent some time on one of the issues that multiple people had...
Simply Explained
ESP32: Tips to increase battery life
Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes...
over a year ago
Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes great responsibility. In this post, I’ll outline how I got an ESP32 to run for over 15 weeks (and counting) on a single 1000mAh battery.
Matt Blewitt
Table Stakes
This is a short post on what I see are table stakes for any new user-facing service, security-wise....
over a year ago
This is a short post on what I see are table stakes for any new user-facing service, security-wise. Mostly focused on user-focused, rather than intra-service, considerations.
Jonas Hietala
The great Hochstapler
Hey there. A lot has happened lately since my last update and my last game here.
I’m now a pretty...
over a year ago
Hey there. A lot has happened lately since my last update and my last game here.
I’m now a pretty happy student at Linköpings university and I’m reading something similar to Computer Science or Computer engineering, but I guess it’ll become whatever you make it to be. For...
Electronics etc…
Symmetricom 58532A GPS Antenna Supply Voltage Mod
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A...
9 months ago
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A variant?
References
The Symmatricom 58532A
As part of a package deal, I got my hands on a Symmetricom 58532A L1
GPS antenna.
Microchip, which acquired Symmetricom in 2013, doesn’t...
Notes on software...
Notes from Neal Gabler's Walt Disney
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though...
a year ago
Disney was a celebrity by his mid-30s, Disney the company was famous
by 1930s.
Even though politically the 1930s was considered the decade of
Roosevelt (elected President in 1933), culturally the 1930s was
considered the decade of Mickey Mouse.
Almost every new...
Good Enough
Season 1, Issue 4: Issue 4-evah
0. It’s Been a Long Time
Sorry 4 the silence these past weeks. Life happened fast and furious....
over a year ago
0. It’s Been a Long Time
Sorry 4 the silence these past weeks. Life happened fast and furious. Barry’s daughters all had marching band, and he chaperoned 4 the parades. His eldest daughter also went and got a boyfriend. Shawn’s been feeling a little under the weather, and his two...
Willem's Blog
Minimalistic road bike with Gates carbon drive
For the past few months I have been riding the Schindelhauer Siegfried Road bike with the Gates CDX...
over a year ago
For the past few months I have been riding the Schindelhauer Siegfried Road bike with the Gates CDX Carbon Drive, read about this beautiful minimal bike in this post.
anderegg.ca
How decentralized is Bluesky really?
Here’s an excellent article from Christine Lemmer-Webber that takes a deeper technical look into...
4 weeks ago
Here’s an excellent article from Christine Lemmer-Webber that takes a deeper technical look into some of the criticisms I had in my previous piece.
The article is long, but very much worth a read. From the conclusion:
Bluesky is built by good people who care, and it is providing...
Old Vintage...
The unreleased Commodore HHC-4's secret identity
Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one...
a month ago
Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one and only handheld computer, the Commodore HHC-4. It was never released and never seen again, at least not in that form. But it turns out that not only did the HHC-4 actually exist,...
Arduino Blog
Enhance your IoT dashboards with Arduino Cloud’s new Image widget
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited...
3 months ago
At Arduino, we’re constantly working to improve your IoT management experience. Today, we’re excited to announce a new feature for Arduino Cloud that will allow you to enhance your IoT dashboards: the Image widget. The new Image widget The Image widget is a simple yet powerful...
Willem's Blog
Realtime service uptime monitoring
Downtime happens and it is nothing to be ashamed of, just make sure that you set yourself up to...
over a year ago
Downtime happens and it is nothing to be ashamed of, just make sure that you set yourself up to discover problems as soon as possible! Know about problems before your customers do!
seangoedecke.com RSS...
Keep incidents boring
The internet is full of exciting incident war stories. Tough engineering problems, solved under...
over a year ago
The internet is full of exciting incident war stories. Tough engineering problems, solved under pressure by sleep-deprived developers. In an…
Jonas Hietala
Habits to start
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or...
over a year ago
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or goals for this spring and I don’t have a clear vision of what to do currently but it also feels… fine? Maybe I will cruise in a lower gear for a while and rev up when my mood...
lcamtuf’s thing
Electric chainsaws and the gorge of misery
Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
4 months ago
Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
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
Jonas Hietala
Embedding youtube videos with Hakyll
A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using...
over a year ago
A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using Hakyll.
I don’t want to remember any special syntax for embedding, I don’t want to bother (remember?) to use something like {% youtube: <link> %} or whatever syntax we might find...
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)...
Matt Blewitt
A Love Letter to Giant Robots
Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first...
6 months ago
Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first exposure to them was probably through 1994’s BattleTech animated series, where Adam Steiner piloted an AXM-2N Axman, in its frankly ridiculous neon green and purple paint job. And from...
Jonas Hietala
The T-34 keyboard layout
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with...
over a year ago
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with much fewer keys, like the 36-key Gergoplex and the 44-key Kyria. I may write another post about the reasons why, but long story short I started getting pain in my thumbs, fingers,...
computers are bad
2024-03-17 wilhelm haller and photocopier accounting
In the 1450s, German inventor Johannes Gutenburg designed the movable-type
printing press, the first...
9 months ago
In the 1450s, German inventor Johannes Gutenburg designed the movable-type
printing press, the first practical method of mass-duplicating text. After
various other projects, he applied his press to the production of the Bible,
yielding over one hundred copies of a text that...
Notes on software...
What makes a great technical blog
I want to explain why the blogs in My favorite technical
blogs are my favorite. That
page is solely...
8 months ago
I want to explain why the blogs in My favorite technical
blogs are my favorite. That
page is solely about non-corporate tech blogs. So this post is
too. I'll have to make another list for favorite corporate tech blogs.
In short, they:
Tackle hard and confusing topics
Show working...
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
This is "detreville"
It's my name, and the name of my Substack too. That's one less thing for everyone to remember.
a year ago
It's my name, and the name of my Substack too. That's one less thing for everyone to remember.
Arduino Blog
An ultra-affordable DIY underwater ROV
ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by...
7 months ago
ROVs (remotely operated vehicles) let us explore bodies of water and it is hard not to be excited by the possibilities. But traditional ROVs cost a lot of money and often require serious expertise to operate and maintain. Luckily there are affordable alternatives, such as this...
Notes on software...
Two books I recommend to developers
Originally published on February 1, 2021. The original version
included two books I don't think...
a year ago
Originally published on February 1, 2021. The original version
included two books I don't think are actually so worthwhile. This
list is down to two. I think that's a good thing actually.
These are the books I recommend to developers wanting to improve their
skills as...
Jonas Hietala
A Christmas Game
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly...
over a year ago
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly one thing on my wishlist for this christmas for my little brother: Ticket to Ride: Nordic Countries. Guess what? I got something from my wishlist!
This was our 5th or 6th game (or...
computers are bad
2023-04-30 los alamos - compound to county pt II
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly...
a year ago
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly administered by the Atomic Energy Commission (AEC).
The Atomic Energy Communities Act (AECA) mandated the AEC to dispose of the
towns it owned by transferring the property to private...
Jonas Hietala
I designed my own keyboard layout. Was it worth it?
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I...
a year ago
Almost two and a half years ago I embarked on the journey to change keyboard layout.
At first I tried out existing ones, but it didn’t take long before I figured it’s better to develop my own—and things went downhill fast from there.
(Some) combos of the T-34 layout.
But now...
Push to Prod
When Overwhelmed, Make a List of Questions
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
4 months ago
In my first big project at Netflix, I learned this disturbingly simple problem-solving technique.
./techtipsy
Turning leftover PC parts into a decent gaming PC
Introduction
About a year ago, I bought an used PC based off of
a Lenovo Erazer X510. It had a...
over a year ago
Introduction
About a year ago, I bought an used PC based off of
a Lenovo Erazer X510. It had a dual-core Intel Pentium
G3220 CPU, 4GB of DDR3 RAM, a crappy Codegen 400W power supply and a 60GB SSD. I added an Nvidia GTX 1050 and just like
that, a budget gaming PC was born. My...
Home on Erik...
HubSpot's Picture Shows how to Maintain Monocultures in the 21st Century
I thought this article about the company culture at HubSpot is kind of funny. “HubSpot's Awesome...
over a year ago
I thought this article about the company culture at HubSpot is kind of funny. “HubSpot's Awesome Presentation Shows how to Create a 21st Century Culture”.
Just FYI: You're not different. You're a bunch of white hipsters aged 25-30 dressed up in the same theme.
Vitalik Buterin's...
Quadratic Payments: A Primer
over a year ago
Jonas Hietala
Geekhack Toxic
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it...
over a year ago
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it be?
With a crummy mobile phone photo I give you my TOXIC keycaps mounted on my trusty old das keyboard:
Woooo
If only my GH60 could arrive some time this decade…
Home on Erik...
Iterate or die
Here's a conclusion I've made building consumer products for many years: the speed at which a...
over a year ago
Here's a conclusion I've made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed.
I don't even mean throughput here. I just mean the cycle time.
Applied Cartography
Migrating someone who's on Stripe Connect Express
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author...
11 months ago
Most Stripe accounts on Substack are “Standard Connect”, which essentially means that:
the author has full agency over their account and is the merchant of record;
they can revoke OAuth access from Substack (or whomever) at any time;
Substack continues to take that 10% as an...
Ian's Blog
Mourning the Loss of Cohost
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting...
3 months ago
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting down, with the site going read-only on October 1st 2024. This news was deeply upsetting to receive, as Cohost filled a space left by other social media websites when they stopped...
Willem's Blog
Commuting by bike
One week on the VanMoof Electrified S E-bike testing it for commuting and comparing it to a normal...
over a year ago
One week on the VanMoof Electrified S E-bike testing it for commuting and comparing it to a normal bike.
Good Enough
TIL: Turbo Frames
DoEvery.Day calendar navigation was broken. We built it using Turbo Rails as it was being developed....
a year ago
DoEvery.Day calendar navigation was broken. We built it using Turbo Rails as it was being developed. As we have updated libraries, including Rails, the API has changed. In order to get the calendar navigation working again, I had to pull out some old hacks that made use of...
Home on Erik...
Data architecture vs backend architecture
A modern tech stack typically involves at least a frontend and backend but relatively quickly also...
over a year ago
A modern tech stack typically involves at least a frontend and backend but relatively quickly also grows to include a data platform. This typically grows out of the need for ad-hoc analysis and reporting but possibly evolves into a whole oil refinery of cronjobs, dashboards, bulk...
Home on Erik...
I'm looking for data engineers
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers...
over a year ago
I'm interrupting the regular programming for a quick announcement: we're looking for data engineers at Better. You would be the first one to join and would work a lot directly with me.
Some fun things you could work on (these are all projects I'm working on right now):
Notes on software...
Make small changes and solve the problems you have
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that...
over a year ago
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that aren’t clearly associated with a known
problem. It’s even worse in that order.
These situations tend to happen when a problem remain unaddressed for
too long. These situations tend to...
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