Jonas Hietala
Netrunner Winter Kit Tournament Linköping
After quite the hiatus from Netrunner I had a chance to join a tournament here in Linköping with 14...
over a year ago
After quite the hiatus from Netrunner I had a chance to join a tournament here in Linköping with 14 participants. The number of players has grown a lot since the previous tournament which is really great.
As I really wanted to win the wonderful Day Job playmat I went with two of...
Good Enough
TIL: Use randomness to prevent email trimming
With conversation threading (which almost everyone has enabled), Gmail was trimming the bottom of...
a year ago
With conversation threading (which almost everyone has enabled), Gmail was trimming the bottom of the emails we send with our new app because they were too similar to the other emails in the conversation thread.
They’re similar because that’s just the link to get back into the...
Jonas Hietala
Postmortem: MenuCity
Good times, good times. MenuCity has been out a while and thanks for all the positive and...
over a year ago
Good times, good times. MenuCity has been out a while and thanks for all the positive and constructive feedback guys, it’s like my food doing this (programming is my air and the fun is the water… err). Anyway here’s the postmortem of my latest, and greatest, game.
Let’s start...
Applied Cartography
November, 2024
Not a lot to share this month; it was a particularly busy time, between a mystery (and now solved,...
2 weeks ago
Not a lot to share this month; it was a particularly busy time, between a mystery (and now solved, without fanfare or closure) cough and a dearth of time to write as I started to explore easing back into full-time work.
Still, some writing (and selfishly, I'm excited to end the...
Notes on software...
Interview with the D Language Blog: BSDScheme
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Arduino Blog
This smart spice box makes cooking a breeze
Many people shy away from cooking because they’re overwhelmed by all of the different steps and...
6 months ago
Many people shy away from cooking because they’re overwhelmed by all of the different steps and ingredients. Recipes are useful, but they aren’t very intuitive to those who are more comfortable with visual thinking. To help these people enjoy the cooking experience, Purdue...
Good Enough
TIL: Turbo Stream broadcasting needs default_url_options to be set
We've been using Turbo Streams in some of our recent prototypes, which makes it really easy and fun...
a year ago
We've been using Turbo Streams in some of our recent prototypes, which makes it really easy and fun to get responsive and fun interactions set up. However, we kept having issues with images sent in a turbo stream response.
If the response was delivered by a normal controller...
./techtipsy
Life is maintenance, maintenance is life
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building...
a year ago
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building things.
When I was still an inexperienced junior developer who barely survived operating in a Linux
environment and saw backend development as a black box, I was happy to get...
Notes on software...
Writing a document database from scratch in Go: Lucene-like filters and indexes
In this post we'll write a rudimentary document database from scratch
in Go. In less than 500 lines...
over a year ago
In this post we'll write a rudimentary document database from scratch
in Go. In less than 500 lines of code we'll be able to support the
following interactions, inspired by Elasticsearch:
$ curl -X POST -H 'Content-Type: application/json' -d '{"name": "Kevin", "age": "45"}'...
Posts on Made of...
A Brief Introduction to termios: Signaling and Job Control
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read...
over a year ago
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 or part 2 if you’re new here)
For my final entry on termios, I will be looking at job control in the shell (i.e. backgrounding and foreground jobs) and the very closely related...
Willem's Blog
For the love of mini
The iPhone Mini has intangible greatness that most folks don't know about: read along for the love...
over a year ago
The iPhone Mini has intangible greatness that most folks don't know about: read along for the love of mini!
Posts on Made of...
Test suites as classifiers
Suppose we have some codebase we’re considering applying some patch to, and which has a robust and...
over a year ago
Suppose we have some codebase we’re considering applying some patch to, and which has a robust and maintained test suite.
Considering the patch, we may ask, is this patch acceptable to apply and deploy. By this we mean to ask if the patch breaks any important functionality,...
Home on Erik...
Giving more tools to software engineers: the reorganization of the factory
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe...
over a year ago
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe I'm an optimistic person, because my viewpoint is the complete opposite! I had my first job as a software engineer in 1999, and in the last two decades I've seen software engineering...
Yazin Alirhayim
Tracking where a WhatsApp user came from
At Amal, we have an AI chat bot that works over WhatsApp — allowing our customers to speak to their...
over a year ago
At Amal, we have an AI chat bot that works over WhatsApp — allowing our customers to speak to their bank account, asking questions like “What’s my balance” and “How much have I spent on Uber’s this month?”.
A problem we faced really early on when connecting to WhatsApp was that...
./techtipsy
Why you might not want to publicly self-host a Wikipedia clone
A while ago I wrote about how easy it is to download an archive of Wikipedia and host it...
a year ago
A while ago I wrote about how easy it is to download an archive of Wikipedia and host it anywhere
you want using Kiwix.
I’m still hosting Kiwix sites publicly, but here are a few things you might want
to consider before doing so yourself.
The spam
I have a specific e-mail address...
Lighthouse Blog
Overview of the reading view
6 months ago
Louwrentius
Setting up a Squid proxy with Clamav anti-virus using c-icap
Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer...
over a year ago
Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer presenting a different set of challenges, requiring different skill sets and technology. So every layer will increase the time and effort to compromise your environment.
A...
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...
Jonas Hietala
The ASIC pit of despair
Monero has once again changed the POW to brick ASICs following confirmation that 85% of Monero’s...
over a year ago
Monero has once again changed the POW to brick ASICs following confirmation that 85% of Monero’s hashrate were ASICs.
Recurring hard forks to brick ASICs is a very dangerous game and what better to illustrate this than with an xkcd-style plot?
You’re safe on the edges but how do...
Engineers Need Art
Casady & Greene
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software...
3 months ago
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software publishing.
Vitalik Buterin's...
STARKs, Part I: Proofs with Polynomials
over a year ago
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...
Louwrentius
The kind of sound you never want to hear from your computer
The sounds of hard drives that have perished
These sounds are only frightening or scary if you...
over a year ago
The sounds of hard drives that have perished
These sounds are only frightening or scary if you imagine your precious data
only exists on that failing drive. If you make consistent and frequent backups
and/or you run a fault-tolerant RAID flavour, it is but a nuisance.
./techtipsy
Running my ThinkPad T430 with an eGPU in 2024
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I...
4 months ago
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I wasn’t considering remaking this setup with everything I’ve learned 6 years later.
Oops.
I got access to an allegedly-faulty AMD Radeon RX 480 and an NVIDIA GTX 1650 for free...
Willem's Blog
Creating the ultimate commuter bike
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
over a year ago
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
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:
./techtipsy
My self-hosting setup has an UPS now, here's my experience with it
I changed my setup again.
I’m now the proud owner of an APC Smart-UPS 750.
Why? Because I got it as...
over a year ago
I changed my setup again.
I’m now the proud owner of an APC Smart-UPS 750.
Why? Because I got it as a gift, and I have never actually had an UPS before, so
it makes for a good introduction to this world.
Overview
My setup is quite basic: everything that I have on my table...
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!
Vitalik Buterin's...
The Most Important Scarce Resource is Legitimacy
over a year ago
Vitalik Buterin's...
Gitcoin Grants Round 7 Retrospective
over a year ago
seangoedecke.com RSS...
Building multiplayer games with socket.io and HTML5 Canvas
I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps...
over a year ago
I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps was a Visual Basic game - I was in…
Jonas Hietala
Long Term Goals (part 2)
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major...
over a year ago
A few minutes after I wrote about my long term goals, in the shower, I realize I forgot a few major goals I have:
Write my own Programming Language
Why? Because it sounds fun and epic as hell.
Write a Book
So I like books and I like to collect them and I have my whole bookcase...
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.
Jonas Hietala
Let's build a VORON: Build start
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was...
a year ago
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was suddenly very important that I got myself a 3D printer.
Maybe it was an important insight, but it maybe it was only a fix idea I got that somehow became this all-import...
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.
axio.ms
Mac SE/30 odyssey
I’ve always wanted an Apple Macintosh SE/30. Released in 1989, they look quite a lot like the other...
over a year ago
I’ve always wanted an Apple Macintosh SE/30. Released in 1989, they look quite a lot like the other members of the original “compact Mac” series, but pack in a ton of interesting features that the other compact Macs don’t have.
This is the story of my journey to getting to the...
Louwrentius
Some pretty NAS case designs
If you are planning on building your own NAS box, I have some suggestions
regarding the case.
In my...
over a year ago
If you are planning on building your own NAS box, I have some suggestions
regarding the case.
In my opinion, most computer case designers have absolutely no taste.
Antec and Lian Li do create nice cases, but not that spectacular. And Lian Li is
just very expensive. A fairly new...
Avestura's Blog
An opinion on what's a good general-purpose programming language
What features should a programming language have to be ideal, in my opinion?
over a year ago
What features should a programming language have to be ideal, in my opinion?
Arduino Blog
Assess your aquarium’s health with an AI-enabled ultrasonic sensor
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can...
7 months ago
Below the surface of any body of water, harmful amounts of toxic gases and contaminates can accumulate, which leads to a loss in fish and plant populations if not fixed quickly. But because most water testing, especially in aquariums, is done primarily on the surface, vital...
Louwrentius
Do not buy a hardware RAID controller for home use
Hardware RAID controllers are considered 'the best' solution for high
performance and high...
over a year ago
Hardware RAID controllers are considered 'the best' solution for high
performance and high availability. However, this is not entirely true. Using a
hardware RAID controller might even endanger your precious data.
For enterprise environments, where performance is critical, it is...
computers are bad
2024-12-04 operators on the front
At the very core of telephone history, there is the telephone operator. For a
lot of people, the...
2 weeks ago
At the very core of telephone history, there is the telephone operator. For a
lot of people, the vague understanding that an operator used to be involved is
the main thing they know about historic telephony. Of course, telephone
historians, as a group, tend to be much more...
Engineers Need Art
Apple Interview (1995)
Recalling my somewhat unusual interview with Apple back in 1995.
over a year ago
Recalling my somewhat unusual interview with Apple back in 1995.
Arduino Blog
This DIY guitar transmitter sends digital audio to the amp
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer....
4 months ago
When on stage, most guitarists will simply run a long cable from their guitar to the amp or mixer. But that cable can become tangled or get in the way, which is a problem for some of the more animated musicians out there. Wireless transmitters exist for them to express themselves...
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
Buck on Software
Don't be foie gras
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
over a year ago
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
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...
Louwrentius
Ubuntu and full disk encryption (FDE)
Ubuntu is based on Debian Linux. As part of a regular Debian installation, you
can choose to create...
over a year ago
Ubuntu is based on Debian Linux. As part of a regular Debian installation, you
can choose to create an encrypted disk volume based on LUKS. This is different
from the option within the Ubuntu installation to encrypt home directories. To
be able to install Ubuntu and use full disk...
./techtipsy
Control - how to make a game enjoyable for casual audiences
I’ve decided to intentionally take more time to play video games this year,
since it’s a relatively...
a year ago
I’ve decided to intentionally take more time to play video games this year,
since it’s a relatively healthy way to escape from the real world once in a while.
A friend recommended one game in particular: Control: Ultimate Edition.
During the Steam summer sale of 2023, I went...
Willem's Blog
Apple Watch as Phone
Embark on a digital detox journey as I swap my smartphone for an Apple Watch Ultra, exploring the...
a year ago
Embark on a digital detox journey as I swap my smartphone for an Apple Watch Ultra, exploring the liberating yet challenging world of wearable tech.
Notes on software...
Writing an x86 emulator from scratch in JavaScript: 2. system calls
Previously in emulator basics:
1. a stack and register machine
In this post we'll extend x86e...
over a year ago
Previously in emulator basics:
1. a stack and register machine
In this post we'll extend x86e to
support the exit and write Linux system calls, or syscalls. A syscall
is a function handled by the kernel that allows the process to
interact with data outside of its memory....
csvbase blog
Parquet: more than just "Turbo CSV"
Quicker, but also more convenient
a year ago
Quicker, but also more convenient
Birchtree
I’m Not a Panda Person
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web...
2 days ago
Niléane has a new webcam, Chris is downing in keyboards, and everyone installs some web-ass web apps.
Watch it on YouTube or listen in your favorite podcast app!
Arduino Blog
Reimagining the chicken coop with predator detection, Wi-Fi control, and more
The traditional backyard chicken coop is a very simple structure that typically consists of a...
4 months ago
The traditional backyard chicken coop is a very simple structure that typically consists of a nesting area, an egg-retrieval panel, and a way to provide food and water as needed. Realizing that some aspects of raising chickens are too labor-intensive, the Coders Cafe crew decided...
Arduino Blog
Two NEW Arduino Plug and Make Kit projects recreate iconic vintage games
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix...
3 months ago
The Plug and Make Kit is a toolbox you can use for infinite ideas. So what happens if you ask a mix of Arduino designers, engineers, and managers to sit down and brainstorm new ideas to have fun with it? Well, at least one of them is guaranteed to come up with an adorable,...
Willem's Blog
Moving to the countryside
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
over a year ago
Join me on a journey from the bustle of Amsterdam to the tranquility of Noord-Limburg's countryside.
Good Enough
Say hello to Jelly: the simplest way to jam on email as a team
Dear readers, we need to apologize. We know some of you have noticed that Good Enough has gotten...
5 months ago
Dear readers, we need to apologize. We know some of you have noticed that Good Enough has gotten much quieter this year than last, across this blog, our newsletter, and socials. We’ve been heads down for the last few months on something new, but we’re now ready to come back up...
Bryan Braun - Blog
The flood of AI website builders
There are so many of them.
instead of markdown to enable lazy-loading -->
How good...
7 months ago
There are so many of them.
instead of markdown to enable lazy-loading -->
How good are these site builders? I don’t know.
Are you worried about job security? I have two thoughts…
1. We’ve seen this before
Wordpress, Squarespace, Shopify, Webflow… all these tools...
Old Vintage...
So thieves broke into your storage unit - again
If you've been wondering why entries have been a little slow lately, let me tell you a story.
All...
2 months ago
If you've been wondering why entries have been a little slow lately, let me tell you a story.
All collectors tend to be a bit obsessive by nature, and us classic computer nerds probably pick up more hardware than we can (or should) store in our residence — especially if the...
latest projects -...
Analemmagraph
[Concept] Video of a day, one year in every frame
a year ago
[Concept] Video of a day, one year in every frame
Posts on Made of...
Performance engineering, profilers, and seeing the invisible
I was recently introduced to the paper “Seeing the Invisible: Perceptual-Cognitive Aspects of...
a year ago
I was recently introduced to the paper “Seeing the Invisible: Perceptual-Cognitive Aspects of Expertise” by Gary Klein and Robert Hoffman. It’s excellent and I recommend you read it when you have a chance.
Klein and Hoffman discuss the ability of experts to “see what is not...
csvbase blog
I didn't write any Javascript, and other shortcuts
Getting it done by not doing a lot of it
a year ago
Getting it done by not doing a lot of it
Odds and Ends of...
Four big US election takes: Yes, it was the woke stuff.
Plus how to know when the Democrats are taking their problems seriously, the one good thing Trump...
a month ago
Plus how to know when the Democrats are taking their problems seriously, the one good thing Trump might do, and why the polls were right
Louwrentius
Mounting a file system or partition from a disk image
You cannot just make a disk copy with dd and then just mount it as a regular
disk. You must know...
over a year ago
You cannot just make a disk copy with dd and then just mount it as a regular
disk. You must know where the partition starts on the disk. So first, you need
to get the partition table with sfdisk:
sfdisk -l -uS image_file.dd
The output is something like:
Disk...
computers are bad
2024-09-14 the national warning system
Previously on Deep Space Nine, we discussed the extensive and variable products
that AT&T and...
3 months ago
Previously on Deep Space Nine, we discussed the extensive and variable products
that AT&T and telephone operating companies sold as private
lines. One of the
interesting properties of private line systems is that they can be ordered as
four-wire. Internally, the telephone network...
./techtipsy
Things I've learned during my self-hosting adventure
This is a list of lessons that I’ve learned while playing around with my computer setup during the...
over a year ago
This is a list of lessons that I’ve learned while playing around with my computer setup during the last 6-7 years or so.
USB connected storage is a bad idea when you are using BTRFS.
USB connected storage is still a bad idea when you are using ZFS, but it is at least much more...
Vitalik Buterin's...
Travel time ~= 750 * distance ^ 0.6
a year ago
Jonas Hietala
Incomplete game coming up
Man I’m far too much of a perfectionist, with this mentality I’ll never get anything done -...
over a year ago
Man I’m far too much of a perfectionist, with this mentality I’ll never get anything done - seriously. I spent far too many hours, even days, figuring out in my mind how the game should be and I started off going for nothing less than just that. But it turned out to be a lot...
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...
Jonas Hietala
MenuCity: Level 0 Walkthrough
It hasn’t even been a week since I released my latest game MenyCity and already so much positive...
over a year ago
It hasn’t even been a week since I released my latest game MenyCity and already so much positive feedback! I’m so thrilled :) However, all isn’t blue skies and nice sunshine. A lot of times the first question is: How do you play it? or How do you get past the first level? I admit...
Computer Ads from...
T/Maker: Tiny Software Company Takes on the Giants (Interview)
An interesting look at a company with less than 20 employees playing with the big boys
2 months ago
An interesting look at a company with less than 20 employees playing with the big boys
Computer Ads from...
Small Systems Engineering's PETSPEED
Fast Enough for the Human Race
5 months ago
Fast Enough for the Human Race
Arduino Blog
This robotic kalimba plays melodies with an Arduino Nano
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each...
3 months ago
With roots in Africa, the kalimba is a type of hand piano featuring an array of keys that are each tuned for a specific note, and upon plucking or striking one, a pleasant xylophone-like sound can be heard. Taking inspiration from his mini kalimba, Axel from the YouTube channel...
computers are bad
2024-11-09 iron mountain atomic storage
I have quipped before about "underground datacenters," and how they never
succeed. During the late...
a month ago
I have quipped before about "underground datacenters," and how they never
succeed. During the late decades of the Cold War and even into the '00s, the
military and (to a lesser extent) the telecommunications industry parted ways
with a great number of underground facilities....
On Life and Lisp
Growing up Alyssa
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky...
a year ago
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky ones.
After four painful years, I was fortunate enough to access gender-affirming health care. First testosterone blockers. Later estrogen, the stuff my peers soaked in for years while I...
Louwrentius
Performance monitoring using dstat
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is...
over a year ago
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics
about what is currently happening on your Linux box.
Dstat allows you to monitor the system load, disk troughput, disk io, network
bandwith, and many more items.
Dstat is so valuable because it...
./techtipsy
How to start your self-hosting adventure: a high-level overview
Reddit is a great starting point for getting new ideas for your homelab: racks full of machines
in...
over a year ago
Reddit is a great starting point for getting new ideas for your homelab: racks full of machines
in /r/homelab, storage measured in terabytes (or even petabytes) over
at /r/datahoarder, all the different services that people host over at
/r/selfhosted. This can be a bit...
Jonas Hietala
Fixing Problems
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a...
over a year ago
Today I have fixed two large annoyances I’ve had!
I fixed the blue people on youtube bug
I found a nice thread with a great answer. I solved it by forcefully patching libflashplayer.so
perl -pi.bak -e 's/libvdpau/lixvdpau/g' libflashplayer.so
Worked perfectly!
I fixed the...
Good Enough
Season 1, Issue 2: Just the Two of Us
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing...
over a year ago
0. Everyone Likes a Giveaway
Stick around to hear how you can win a fabulous prize by hardly doing anything. Take it away, fellas…
1. Still Positive
Did you know that once you acquire COVID-19 your PCR test can be positive for up to 90 days? Did you know that the at-home tests...
Home on Erik...
Never attribute to stupidity that which is adequately explained by opportunity cost
Hanlon's razor is a classic aphorism I'm sure you have heard before: Never attribute to malice that...
over a year ago
Hanlon's razor is a classic aphorism I'm sure you have heard before: Never attribute to malice that which can be adequately explained by stupidity.
I've found that neither malice nor stupidity is the most common reason when you don't understand why something is in a certain way.
Posts on Made of...
Conkeror
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension,...
over a year ago
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension, but nowadays it’s a standalone app built on top of Mozilla’s xulrunner, so it uses the Gecko rendering engine.
What it is, is an emacs implemented in Javascript, for the web. This...
Posts on Made of...
Navigating the Linux Kernel
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way...
over a year ago
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way around the Linux kernel. I’m not sure I have much in the way of systematic advice for tracking down the answers to questions about the Linux kernel, but thinking about what I do when...
Posts on Made of...
Suggestion time: What should I blog about?
I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron...
over a year ago
I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron Blogger, and I’m not totally enthusiastic about any of the items on my “to blog” list.
But, I do enjoy blogging when I actually get into posts, and I’d like to keep updating this blog....
Notes on software...
Bootloader basics
I spent a few days playing around with bootloaders for the first
time. This post builds up to a text...
over a year ago
I spent a few days playing around with bootloaders for the first
time. This post builds up to a text editor with a few keyboard
shortcuts. I'll be giving a virtual talk based on this work at Hacker
Nights on Jan 27.
There are a definitely bugs. But it's hard to find...
Arduino Blog
Clone your IoT projects with Arduino Cloud Custom Templates
Whether you are an IoT enthusiast, an enterprise developer or a high school teacher, we all know the...
4 months ago
Whether you are an IoT enthusiast, an enterprise developer or a high school teacher, we all know the thrill of bringing a new IoT project to life. But we also understand the frustration of repetitive setup processes and the time sink of configuring the same elements over and over...
Opsbros
Debug Header
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor...
over a year ago
After watching a livestream by UnexpectedMaker struggling to put probe pins on his Stepper Motor driver connected to a Raspberry Pi, I thought a breakout header might help; so I whipped up this little board.
Electronics etc…
HP 8656A Signal Generator Schematics
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the...
10 months ago
Agilent has made the 8656A Signal Generator Operating & Service Manual
available as a PDF, but the schematics of chapter 8 are all spread over 3 or 4 pages, which makes
them hard to follow.
I spent a good evening extracting the schematics pages, cutting-and-pasting
them together...
Arduino Blog
A DIY weather display with dedicated outdoor sensor station
Weather stations are popular projects in the maker community because they’re useful and usually...
6 months ago
Weather stations are popular projects in the maker community because they’re useful and usually quite affordable to construct. But most that we see are really weather information displays that gather data through the internet from stations in the region. That data is fairly...
Computer Ads from...
Oberon International' Omni-Reader
Audio Engineers announce a revolution in taking words from page to your computer
5 days ago
Audio Engineers announce a revolution in taking words from page to your computer
Vitalik Buterin's...
La Guía Incompleta de los Rollups
over a year ago
Yazin Alirhayim
Serializing and deserializing a Cookie Jar
I was recently working on a way to serialize and deserialize a Faraday connection that uses...
over a year ago
I was recently working on a way to serialize and deserialize a Faraday connection that uses HTTP::CookieJar to manage persistent cookies across requests.
I needed to do this because I wanted a way to “freeze” an HTTP connection instance, and later “thaw” it to resume the...
Matt Mullenweg
Everyone’s An Owner
Last Friday we said goodbye to 159 colleagues as part of our alignment offer. It was a tough day,...
2 months ago
Last Friday we said goodbye to 159 colleagues as part of our alignment offer. It was a tough day, there are a lot of close relationships within Automattic, and goodbyes are always hard. On Monday, I got to be Oprah for a few minutes. We had scheduled a town hall for leaders...
Posts on Made of...
Towards solving Ultimate Tic Tac Toe
Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey...
over a year ago
Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey into interesting algorithms and high-performance parallel programming in Rust.
Backstory Starting around the beginning of the COVID-19 lockdown, I’ve gotten myself deeply nerdsniped...
Vitalik Buterin's...
The near and mid-term future of improving the Ethereum network's permissionlessness and...
7 months ago
Lighthouse Blog
How to import feeds in Lighthouse
8 months ago
Style over Substance
Leitz Summicron 50mm f/2 rigid (type 2) lens
My newest lens acquisition wasn’t actually originally on my wishlist. I already had a 50mm Summicron...
over a year ago
My newest lens acquisition wasn’t actually originally on my wishlist. I already had a 50mm Summicron lens, though that was the first generation collapsible model known as a Type 1. This lens has lived on my Leica M3 permanently for the past few years, and I have enjoyed the hell...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 4: The Verge
2 months ago
./techtipsy
Testing GPU passthrough on AMD Ryzen 7 5700G APU
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are...
over a year ago
Introduction
Before we jump into all the nitty-gritty details, I’d like to go over what we are dealing with here since these topics
may be unfamiliar to you. VFIO is quite a niche topic and not everyone knows about it.
GPU passthrough: the process of allowing a VM...
Gwern.net Newsletter
March 2021 Gwern.net Newsletter
2 major new site features: 'popins' and recursive Wikipedia popups
over a year ago
2 major new site features: 'popins' and recursive Wikipedia popups
Vitalik Buterin's...
What do I think about network states?
over a year ago
Willem's Blog
Refining my tablet OS experience
Installing Debian GNU/Linux on a Surface Go 2 with LTE/4G to replace my iPad Pro as daily driver.
over a year ago
Installing Debian GNU/Linux on a Surface Go 2 with LTE/4G to replace my iPad Pro as daily driver.
Vitalik Buterin's...
The bulldozer vs vetocracy political axis
over a year ago
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...
anderegg.ca
More details on Bluesky’s subscription plan
Update: I had missed this, but the Bluesky team had already announced a subscription model was on...
2 weeks ago
Update: I had missed this, but the Bluesky team had already announced a subscription model was on the way. I had written this article assuming that was the news. What is new is the work happening on their official apps, which contains details on features and potential pricing. An...
Posts on Made of...
Versioning dotfiles in git
I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines...
over a year ago
I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines for some time. I experimented with keeping all of ~ in subversion for a while, but it never worked out well for me.
I’ve finally settled on a solution that I like using git, and so...
Vitalik Buterin's...
DAOs are not corporations: where decentralization in autonomous organizations matters
over a year ago
Arduino Blog
On-body LEDs help this guitar rock harder
You don’t go to watch a band play live for the audio quality — most venues are atrocious in that...
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...
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!
Jonas Hietala
Let's build a VORON: Wrap-up
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to...
9 months ago
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to leave it alone for a while, so I think it’s time to wrap up this build series with a little retrospective.
Building the printer was really fun and rewarding
I’ve always seen...
Posts on Made of...
Computers can be understood
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially...
over a year ago
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially all of my work with software. I attempt to articulate this mindset, some of its implications and strengths, and some of the ways in which it’s lead me astray.
Software can be...
Jonas Hietala
Let's build a VORON: Major failure
The left POM nut got ground down, making the bed fall down.
After 600 hours, the printer met it’s...
9 months ago
The left POM nut got ground down, making the bed fall down.
After 600 hours, the printer met it’s first major failure.
I know I earlier described how the extruder starter skipping in a big way, but that was just some filament getting stuck in the extruder.
This time a part...
Computer Ads from...
Black Friday - Happy Birthday sale
Let's mix things up!
3 weeks ago
Bryan Braun - Blog
Before you buy a domain name, first check to see if it’s haunted
In mid-2022 I bought a new domain name.
The name was musicbox.fun. I got it for a side-project, an...
a month ago
In mid-2022 I bought a new domain name.
The name was musicbox.fun. I got it for a side-project, an interactive online music box that I had built and hosted at musicboxfun.com. The new name was shorter and more quirky. I felt lucky to have grabbed it.
Unfortunately, musicbox.fun...
Louwrentius
A practical understanding of lead acid batteries
Introduction
The goal of this article is to give you a practical understanding Lead Acid batteries....
over a year ago
Introduction
The goal of this article is to give you a practical understanding Lead Acid batteries. We won't address the underlying chemistry, we'll treat them as a black-box and we will discover their characteristics and how to keep them healthy.
Disclaimer
I'm an amateur. I...
Home on Erik...
Recurrent Neural Networks for Collaborative Filtering
I’ve been spending quite some time lately playing around with RNN’s for collaborative filtering....
over a year ago
I’ve been spending quite some time lately playing around with RNN’s for collaborative filtering. RNN’s are models that predict a sequence of something. The beauty is that this something can be anything really – as long as you can design an output gate with a proper loss function,...
Louwrentius
Determining smartphone market share using wireless sniffing
I started a project to see if I could track smartphone users by sniffing for
wifi-clients. Most...
over a year ago
I started a project to see if I could track smartphone users by sniffing for
wifi-clients. Most smartphones support wifi and most people don't bother disabling
wifi when they go outdoors1. If wifi is left on, it is possible to detect these
smartphones and track their movement. To...
Jonas Hietala
Slackware update
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my...
over a year ago
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my installation and I decided to go through with a larger reinstallation once more. This is a log of some things I did differently.
Kernel
Before installing the kernel it’s nice to...
Christian Selig
Waterfield's weirdly compact Apple Vision Pro Case
Disclosure: Waterfield sent this in exchange for a review. Yeah, that probably colors something on a...
8 months ago
Disclosure: Waterfield sent this in exchange for a review. Yeah, that probably colors something on a deep-down, subconscious level, but I won’t say anything that I don’t truly believe.
Unlike a phone or laptop, the Vision Pro is one of those products that is particularly tricky...
Willem's Blog
Inspiration from a child
Explore the world together with your kids and reap the rewards of adventure and fun!
over a year ago
Explore the world together with your kids and reap the rewards of adventure and fun!
Arduino Blog
UNO Rev3 or UNO R4? Choosing the perfect Arduino for your project
The Arduino UNO is legendary among makers, and with the release of the UNO R4 in 2023, the family...
4 days ago
The Arduino UNO is legendary among makers, and with the release of the UNO R4 in 2023, the family gained a powerful new member. But with two incredible options, which UNO should you pick for your project? Here’s a breakdown of what makes each board shine, depending on your needs,...
Vitalik Buterin's...
Why sharding is great: demystifying the technical properties
over a year ago
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...
Vitalik Buterin's...
Layer 1 Should Be Innovative in the Short Term but Less in the Long Term
over a year ago
Neil Madden
When a KEM is not enough
In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation...
over a year ago
In my previous post, I described the KEM/DEM paradigm for hybrid encryption. The key encapsulation mechanism is given the recipient’s public key and outputs a fresh AES key and an encapsulation of that key that the recipient can decapsulate to recover the AES key. In this post I...
Notes on software...
Responsibility and ownership
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn...
over a year ago
Responsibility is only possible by granting ownership and setting
expectations. If you don't turn over ownership, don't expect folks to
take responsibility. When you grant ownership and set expectations,
you'll be astounded what folks will accomplish without you.
I am astounded.
Home on Erik...
It's hard to write code for computers, but it's even harder to write code for humans
Writing code for a computer is hard enough. You take something big and fuzzy, some large vague...
2 months ago
Writing code for a computer is hard enough. You take something big and fuzzy, some large vague business outcome you want to achive. Then you break it down recursively and think about all the cases until you have clear logical statements a computer can follow.
Applied Cartography
Two weeks of parenthood
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about...
2 months ago
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about parenthood. (In all seriousness, consider the below descriptive and not prescriptive: mostly, it's a notepad filled with things that were remarkable or surprising or divergent from...
./techtipsy
This site will be offline on 2022-08-17 between 18:00-19:00 EEST
There really isn’t much to say here, nor is there a rational reason behind this.
I just see it as an...
over a year ago
There really isn’t much to say here, nor is there a rational reason behind this.
I just see it as an opportunity to send a signal and test the capabilities of
my UPS.
I’ve prepared for this moment with my self-hosting setup, let’s see how well it
holds up. Hopefully better than...
Posts on Made of...
Disable Transparent Hugepages
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making...
over a year ago
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making more efficient use of your processor’s memory-mapping hardware. It is enabled ("enabled=always") by default in most Linux distributions.
Transparent Hugepages gives some applications...
computers are bad
2023-10-09 prolific counterfeiting
I'm working on a side project right now, one of several, which involves
telematics devices...
a year ago
I'm working on a side project right now, one of several, which involves
telematics devices (essentially GPS trackers with i/o) from a fairly reputable
Chinese manufacturer. The device is endlessly configurable and so, like you see
with a lot of radios, it has a UART for...
Louwrentius
'Improved' image gallery for Blogofile
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports...
over a year ago
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports a small image gallery that has been written to illustrate how to create your own 'controllers' or Blogofile plugins.
My Python skills are horrible buy I managed to improve a bit...
Willem's Blog
Designing and implementing a (micro) payment system
Designing and implementing a micro payment system with an emphasis on simplicity. Read about how I...
over a year ago
Designing and implementing a micro payment system with an emphasis on simplicity. Read about how I did it in this post.
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!!
Arduino Blog
This UNO R4 WiFi-controlled device streamlines a restaurant’s online order system
Most successful restaurants operating today have to take advantage of online ordering, as a huge...
4 months ago
Most successful restaurants operating today have to take advantage of online ordering, as a huge chunk of customers have switched to takeout and delivery. But point-of-sale (POS) systems don’t always integrate well into a kitchen’s workflow and that can lead to missed orders —...
./techtipsy
Stupid project ideas: the War Machine
LinusTechTips has some pretty great videos about building
insane PC and server setups, such...
over a year ago
LinusTechTips has some pretty great videos about building
insane PC and server setups, such as:
unboxing and deploying petabytes of storage
7 gamers, 1 CPU
building sleeper PC-s
testing sketchy CPU-s
opening up a 100TB SSD
I have the ideas, but not the budget of LinusTechTips, so...
Home on Erik...
We are still early with the cloud: why software development is overdue for a change
This is is in many respects a successor to a blog post I wrote last year about what I want from...
over a year ago
This is is in many respects a successor to a blog post I wrote last year about what I want from software infrastructure, but the ideas morphed in my head into something sort of wider.
Louwrentius
Why VMware vSphere replication is changing the game
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller...
over a year ago
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller setups, many people do employ multiple VMware hosts, but the SAN is a single point of failure.
SANs are often fully redundant devices, with redundant PSUs, storage controllers,...
On Life and Lisp
The Apple GPU and the Impossible Bug
In late 2020, Apple debuted the M1 with Apple’s GPU architecture, AGX, rumoured to be derived from...
over a year ago
In late 2020, Apple debuted the M1 with Apple’s GPU architecture, AGX, rumoured to be derived from Imagination’s PowerVR series. Since then, we’ve been reverse-engineering AGX and building open source graphics drivers. Last January, I rendered a triangle with my own code, but...
Opsbros
Docker and CumulusMX
I wanted to find out if I could successfully redeploy my Weather Station monitoring software into a...
over a year ago
I wanted to find out if I could successfully redeploy my Weather Station monitoring software into a Docker container. Let's battle the elements together...
Jonas Hietala
IDA Summer of Code 2014
IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in...
over a year ago
IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in a project of their choice and if selected they get paid to work on it for 4 weeks during the summer. In return the university get to show off the students and their projects in...
Avestura's Blog
Problems of C, and how Zig addresses them
What are the problems of C, and how Zig addresses them?
a year ago
What are the problems of C, and how Zig addresses them?
Louwrentius
RAID 5 vs. RAID 6 or do you care about your data?
Storage is cheap. Lots of storage with 10+ hard drives is still cheap. Running
10 drives increases...
over a year ago
Storage is cheap. Lots of storage with 10+ hard drives is still cheap. Running
10 drives increases the risk of a drive failure tenfold. So often RAID 5 is
used to keep your data up and running if one single disks fails.
But disks are so cheap and storage arrays are getting so...
Computer Ads from...
Flash Sale and a Slight Change to Subscriptions
Time for a little business
3 months ago
Time for a little business
Arduino Blog
CapibaraZero: a student’s journey in reinventing hacking tools with Arduino
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a...
3 weeks ago
Inventive, open-source, and cost-effective – these words perfectly describe CapibaraZero, a multifunctional security and hacking tool developed by young innovator Andrea Canale. Inspired by the popular Flipper Zero, a portable device used to interact with digital systems, Canale...
Computer Ads from...
Two Interviews with Ken Kaplan, One of the Creators of OS-9
Two interview from two different time periods
4 months ago
Two interview from two different time periods
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.
Neil Madden
A controversial opinion about REST API design
I was just reading yet another article on REST API design guidelines. Some of it is good advice,...
a year ago
I was just reading yet another article on REST API design guidelines. Some of it is good advice, some of it I could quibble with. But several of the rules are about how to design the path hierarchy of your API: use plural nouns, don’t use nested sub-paths unnecessarily, etc. In...
Louwrentius
Core i7 920 @ 3,6 Ghz is a true beast!
Even today, Core 2 Duo processors clocked at 2 ghz are no slugs. However, the
Core i7 920 is of a...
over a year ago
Even today, Core 2 Duo processors clocked at 2 ghz are no slugs. However, the
Core i7 920 is of a different kind. First, it is not only clocked at a higher
speed (default 2,8 Ghz), it is also a quad-core processor. Thanks to the re-
introduction of hyperthreading, this processor...
Lighthouse Blog
How to manage content subscriptions
6 months ago
Jonas Hietala
2016 Read Books
Yeah so I managed to not read a single fiction book this year. To compensate and make myself feel...
over a year ago
Yeah so I managed to not read a single fiction book this year. To compensate and make myself feel better I’ll add in some new mangas I’ve read, but I may may have missed some.
Fiction
Crickets
Non-Fiction
Getting to Yes
Relax into Stretch
Thinking, Fast and Slow
59 seconds
The...
Jonas Hietala
Making a Game Again?
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my...
over a year ago
I’ve gotta do a lab today at school, tomorrow I need to do the exam I missed when I had my glasses-missing headaches and I’m going to Ikea and some other shops for, you guessed it, shopping! Sure it’s fun and sure I need to do these things but the only thing on my mind now is...
lcamtuf’s thing
Weekend projects: getting silly with C
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
5 months ago
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
Louwrentius
Storage and I/O: reads vs. writes
There is a fundamental difference between a read operation and a write operation. Storage can lie...
over a year ago
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned.
About...
Good Enough
TIL: Overriding Permalink Generation in FriendlyId
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails...
3 months ago
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails applications. In Pika we're using it to help with
generating permalinks for blog posts and pages as well as slugs for tags. When a customer
wrote in with a request to modify the behavior of...
Posts on Made of...
CVE-2010-4258: Turning denial-of-service into privilege escalation
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different...
over a year ago
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different kernel vulnerabilities I reported recently. This post is about CVE-2010-4258, the most interesting of them, and, as Dan writes, the reason he wrote the exploit in the first place. In...
Notes on software...
Deploying FreeBSD on Linode unattended in minutes
I became a FreeBSD user over 2 years ago when I wanted to see what all
the fuss was about. I swapped...
over a year ago
I became a FreeBSD user over 2 years ago when I wanted to see what all
the fuss was about. I swapped my y410p dual-booting Windows / Ubuntu
with FreeBSD running Gnome 3. I learned a lot during the transition
and came to appreciate FreeBSD as a user. I soon began running...
Louwrentius
Highpoint RocketRAID 2320 on Debian howto
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed...
over a year ago
Get the 'open source' driver from www.highpoint-tech.com. (It's not open
source, it uses a closed binary driver.)
http://www.highpoint-tech.com/USA/bios_rr2320.htm
Install the kernel headers if you haven't already
- apt-get install linux-headers-2.6.18-6-k7
- extract the...
Style over Substance
Our favorite places to eat and drinks during our Portugal vacation
In the summer of 2023, we went on an amazing trip through Portugal. We’d already visited Lisbon on a...
7 months ago
In the summer of 2023, we went on an amazing trip through Portugal. We’d already visited Lisbon on a short city trip a few years earlier, and that experience was so good we knew we had to return. This time, we decided to take a full three weeks and see the sights. We were...
Ken Shirriff's blog
Reverse-engineering an analog Bendix air data computer: part 4, the Mach section
MathJax = {
tex: {
inlineMath: [['$', '$'], ['\\(', '\\)']]
},
svg: {
fontCache:...
10 months ago
MathJax = {
tex: {
inlineMath: [['$', '$'], ['\\(', '\\)']]
},
svg: {
fontCache: 'global'
},
chtml: { displayAlign: 'left' }
};
MathJax.Hub.Config({
"HTML-CSS": { scale: 175}
});
.MathJax {font-size: 1em !important}
In the 1950s, many fighter...
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...
Louwrentius
Improving web application security by implementing database security
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement...
over a year ago
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement defense-in-depth security in web applications. 99.9% of applications use a single database account, with root-like privileges. Easiest for the developer of course, and the database is just a...
Nabeel S. Qureshi
Reading Notes on “Lost Time: Lectures on Proust in a Soviet Prison Camp”
by Josef Czapski
over a year ago
Electronics etc…
Teardown of the TM4313 GPS Disciplined Oscillator
Introduction
What is a GPSDO?
The TM4313 GPSDO
Power Consumption
Inside the TM4313
The TM4313...
a year ago
Introduction
What is a GPSDO?
The TM4313 GPSDO
Power Consumption
Inside the TM4313
The TM4313 Schematic
Frequency or Phase Lock Loop?
OCXO Temperature
The Curious Case of the MAX6192 Voltage Reference
The Discrete Tuning DAC
GPS Module
Microcontroller instead of NMEA Serial...
Vitalik Buterin's...
On Nathan Schneider on the limits of cryptoeconomics
over a year ago
Louwrentius
How to compile HAProxy from source and setup a basic configuration
To learn more about HAProxy I decided to compile it from source and use it to load-balance traffic...
over a year ago
To learn more about HAProxy I decided to compile it from source and use it to load-balance traffic to louwrentius.com across two different web servers.
I run HAProxy on a VPS based on Ubuntu 12.04 LTS. Let's dive right in.
First, we need to download the source. Don't copy/pased...
Electronics etc…
$17 GM1312 Thermometer Review, Test, and Teardown
Introduction
What is a thermocouple
The GM1213 Thermometer
A few...
a year ago
Introduction
What is a thermocouple
The GM1213 Thermometer
A few tests
Internals
Conclusion
References
Introduction
I’ve been doing a bunch of measurements on oven-controlled oscillators lately,
including their temperature. There are multiple ways to measure...
Odds and Ends of...
Odds and Ends #47: I think this YouTube video just changed my life
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
a week ago
Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
On Life and Lisp
AAA gaming on Asahi Linux
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which...
2 months ago
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which integrates our Vulkan 1.3 drivers with x86
emulation and Windows compatibility. Plus a bonus: conformant OpenCL
3.0.
Asahi Linux now ships the only conformant OpenGL®,
OpenCL™,
and...
Jonas Hietala
Goals for Autumn 2016
Every once and a while I like to redo my priorities and set new goals for myself.
I recently read...
over a year ago
Every once and a while I like to redo my priorities and set new goals for myself.
I recently read the book 59 seconds which among other things presented a way of structuring goals I will try out. In short you should divide your main goal into 5 subgoals with a date of completion,...
Home on Erik...
Optimizing things: everything is a proxy for a proxy for a proxy
Say you build a machine learning model, like a movie recommender system. You need to optimize for...
over a year ago
Say you build a machine learning model, like a movie recommender system. You need to optimize for something. You have 1-5 stars as ratings so let's optimize for mean squared error. Great.
Then let's say you build a new model.
Good Enough
Cool URLs Don’t Die
If you've been reading our newsletter (and you should be reading our newsletter) you will have seen...
a year ago
If you've been reading our newsletter (and you should be reading our newsletter) you will have seen that I've been building some printers.
This is actually the resurrection of a project I began in 2012 with the help of some colleagues, and while I've been updating it, it's been...
Opsbros
Artemis 1 Countdown
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it...
over a year ago
I've been following the Artemis 1 Launch Schedule quite closely on a few forums and discussing it with serveral people, and I had been regularly posting updated DateandTime countdown links for the revised launch attempts. With the schedule chnages and scrubs that have happened...
Jonas Hietala
A friendly game of Twilight Imperium
A few weeks ago I played my first game of Twilight Imperium (Fourth Edition). It was fantastic.
We...
over a year ago
A few weeks ago I played my first game of Twilight Imperium (Fourth Edition). It was fantastic.
We were six players, most had played the third edition before. As I was quite hyped before the game, I had read up on the rules, watched a let’s play or two and listened to a podcast...
Home on Erik...
Pareto efficency
Pareto efficiency is a useful concept I like to think about. It often comes up when you compare...
over a year ago
Pareto efficiency is a useful concept I like to think about. It often comes up when you compare items on multiple dimensions. Say you want to buy a new TV. To simplify it let's assume you only care about two factors: price and quality.
Applied Cartography
Notes on 'Founder Mode' / Lieutenancy
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom...
3 months ago
In Paul Graham’s latest essay, he writes:
The theme of Brian's talk was that the conventional wisdom about how to run larger companies is mistaken. As Airbnb grew, well-meaning people advised him that he had to run the company in a certain way for it to scale. Their advice could...
Arduino Blog
Simplifying IoT for smarter manufacturing: Join the chat with Arduino, AWS, and Atlas Machine
We all know that the future of manufacturing lies in IoT — yet the path to adoption can sometimes...
2 weeks ago
We all know that the future of manufacturing lies in IoT — yet the path to adoption can sometimes feel daunting. But what if you could simplify the process and start seeing results quickly? That’s exactly what we’re going to explore in our upcoming Arduino Cloud Café webinar on...
Matt Blewitt
Thoughts on User Safety: 2
Following up from last time, let’s explore the internal and insider fronts when moving beyond...
over a year ago
Following up from last time, let’s explore the internal and insider fronts when moving beyond security towards safety for our users.
Applied Cartography
Content debt
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis,...
5 months ago
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis, handbooks, etc.) to the public as a bit of a marketing push. This is essentially a form of debt, to the extent that you’re taking a lump-sum payment now in exchange for the implicit cost...
Notes on software...
Speeding up Go's builtin JSON encoder up to 55% for large arrays of objects
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Arduino Blog
Adding proximity unlock to an old car with the Arduino Nano 33 BLE
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically...
5 months ago
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically unlocks the doors when the driver approaches while carrying their key fob. When paired with a push-to-start ignition switch, the driver never has to take their keys out of their pocket....
Jonas Hietala
2012 in Review
Like the last two years I’m summarizing the year. At the end of the year like this it always feel...
over a year ago
Like the last two years I’m summarizing the year. At the end of the year like this it always feel like I didn’t accomplish much, but after the yearly summary it always feels better.
2012 Geek Achievements
Designed a processor which fulfills the Core Wars 88 standard. Includes a...
Neil Madden
Newsletter
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably...
11 months ago
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably exploring a few topics around AI and philosophy. If you’d prefer some more technical content around security and cryptography, then take a look at the newsletter I put out for my...
Louwrentius
HP Proliant Microserver N40L is a great NAS or Router
Update 2012-12-11: It seems that a new and faster version is on the horizon.
Update 2012-12-21:...
over a year ago
Update 2012-12-11: It seems that a new and faster version is on the horizon.
Update 2012-12-21: Yes, the new model G7 N54L is out.
Some products seem almost too good to be true and I think the HP Proliant Microserver N40L is one of them. If you are into the market for a very...
Louwrentius
Benchmarking cheap SSDs for fun, no profit (be warned)
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now...
a year ago
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now possible to buy a 1TB solid-state drive for less than €60. However, at such low price points, there is a catch.
Although cheap SSDs do perform fine regarding reads, sustained write...
Jonas Hietala
Netrunner ID draft Örebro
I entered an ID draft tournament in Netrunner hosted in Örebro and this is a brief overview of what...
over a year ago
I entered an ID draft tournament in Netrunner hosted in Örebro and this is a brief overview of what happened. Disclaimer: My memory is a little bit fuzzy and the events may or may not correspond to what actually happened.
The draft
The idea was to randomly sort all entrants and...
computers are bad
2024-01-21 multi-channel audio part 1
Stereophonic or two-channel audio is so ubiquitous today that we tend to refer
to all kinds of...
11 months ago
Stereophonic or two-channel audio is so ubiquitous today that we tend to refer
to all kinds of pieces of consumer audio reproduction equipment as "a stereo."
As you might imagine, this is a relatively modern phenomenon. While stereo
audio in concept dates to the late 19th...
Notes on software...
Writing to be read
There is a common struggle in the writing and maintenance of
documentation, checklists, emails,...
over a year ago
There is a common struggle in the writing and maintenance of
documentation, checklists, emails, guides, etc. Each provides immense
value; a document may be the key to an important process. The goal is
to remove barriers -- to encourage understanding and correct
application of...
Louwrentius
'Syslog: the hidden security risk'
People sometimes forget that there are also a number of UDP-based services
that may pose a threat to...
over a year ago
People sometimes forget that there are also a number of UDP-based services
that may pose a threat to the security of your systems. SNMP is a well-known
service, notorious for being configured with a default password (or community
string).
But there is another service that is...
Jonas Hietala
Faster than Light
So I returned to Faster than Light again this weekend, this time for real. I bought it when it came...
over a year ago
So I returned to Faster than Light again this weekend, this time for real. I bought it when it came out and I played it only in passing, but this weekend I played it a ton.
Aaahh a new beginning in FTL. Will it be death once more
I generally don’t like games where you have to...
GitButler
Git Merge 2024 Talks are Up
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
a month ago
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
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,...
./techtipsy
I finally found an use case for my Raspberry Pi Model B+
You have probably heard about the Raspberry Pi. It’s a nice little affordable
single-board computer...
over a year ago
You have probably heard about the Raspberry Pi. It’s a nice little affordable
single-board computer with a huge community using it for all sorts of projects.
I got my first Raspberry Pi, the Model B+,
during my first year at university, which was around the winter of...
Arduino Blog
Speed up your project’s compile time by up to 50% in Arduino Cloud!
At Arduino, we know how precious your time is when you’re building your next big project or...
a week ago
At Arduino, we know how precious your time is when you’re building your next big project or experimenting with new ideas. That’s why we’re thrilled to introduce a game-changing update to the Cloud Editor Builder — the engine behind compiling your sketches in Arduino Cloud. This...
Home on Erik...
Miscellaneous unsolicited (and possibly biased) career advice
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of...
over a year ago
No one asked for this, but I'm something like ~12 years into my career and have had my fair share of mistakes and luck so I thought I'd share some.
Honestly, I feel like I've mostly benefitted from luck.
Willem's Blog
Realtime human pose recognition through computer vision
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose...
over a year ago
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose detection using PoseNet.
Willem's Blog
The joy of a simple laptop
This week I tested the Surface Laptop Go with Windows 10 and quite frankly was amazed by the...
over a year ago
This week I tested the Surface Laptop Go with Windows 10 and quite frankly was amazed by the experience!
Electronics etc…
Zephyr Ravenna Control Board Replacement
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing...
7 months ago
Blog post that probably has an audience of one, myself.
Introduction
Zephyr Ravenna - Confusing Information
Two PCBs - Control Board & Switch Assembly
Switch of the Breaker!!!
Glass Canopy Removal
Duct Cover Removal
Swapping the Control...
Posts on Made of...
Confessions of a programmer: I hate code review
Most of the projects I've been working on today have fairly strict code review policies. My work...
over a year ago
Most of the projects I've been working on today have fairly strict code review policies. My work requires code review on most of our code, and as we bring on an army of interns for the summer, I've been responsible for reviewing lots of code. Additionally, about five months ago...
Good Enough
Season 3, Issue 2: Britney Coltrane
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I...
a year ago
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I tried to deal with the company-side of work: setting up payroll, health insurance, and making sure we’re compliant (hello, bureaucracy!). Back in the day when Danny and I started...
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...
Jonas Hietala
My book 'Why Cryptocurrencies?' is done
My first commit on my book Why Cryptocurrencies? is from Dec 19, 2018, and now about 17 months later...
over a year ago
My first commit on my book Why Cryptocurrencies? is from Dec 19, 2018, and now about 17 months later and 1006 more commits I’m finally done!
Well, I’m done with the online version at least. I still plan to create an e-book, a PDF and a paperback and who knows how long that will...
Computer Ads from...
Bible Research Systems' THE WORD Processor
For Those Who Seek.
5 months ago
Jonas Hietala
Weekend Tournaments
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament...
over a year ago
This weekend was filled by playing cards. On Saturday I hosted a small Game of Thrones tournament and on Sunday the local Netrunner community hosted a small summer kit tournament.
Game of Thrones
We’ve had a similar tournament once before when me and my girlfriend invited two of...
GitButler
Fearless Rebasing
GitButler now supports first class conflicts, which makes rebasing much less annoying. What is...
2 months ago
GitButler now supports first class conflicts, which makes rebasing much less annoying. What is "fearless rebasing"?
Neil Madden
Towards a standard for bearer token URLs
In XSS doesn’t have to be Game Over, and earlier when discussing Can you ever (safely) include...
over a year ago
In XSS doesn’t have to be Game Over, and earlier when discussing Can you ever (safely) include credentials in a URL?, I raised the possibility of standardising a new URL scheme that safely allows encoding a bearer token into a URL. This makes it more convenient to use lots of...
Arduino Blog
Ready for SPS Italia 2024? Ready for accessible industrial automation!
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our...
7 months ago
Save the date on May 28th-30th, Arduino will be back at SPS Italia in Parma, showcasing how our open-source solutions are revolutionizing the industrial sector with high performance and accessibility. At Arduino’s booth #C020, hall 7, we’ll be presenting the latest additions to...
Construction Physics
How China Is Like the 19th Century U.S.
I spend a lot of time reading about manufacturing and its evolution, which means I end up repeatedly...
a month ago
I spend a lot of time reading about manufacturing and its evolution, which means I end up repeatedly reading about the times and places where radical changes in manufacturing were taking place: Britain in the late 18th century, the US in the late 19th and early 20th centuries,...
Vitalik Buterin's...
Binius: highly efficient proofs over binary fields
7 months ago
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,...
Louwrentius
Apple is killing off the optical drive just like the floppy disk
With the release of the new MacBook Air we are one step closer to killing off
the cd-rom and the...
over a year ago
With the release of the new MacBook Air we are one step closer to killing off
the cd-rom and the dvd. As with the previous MacBook Air, this device has no
optical drive. And that is a good thing. People do not need an optical drive.
You have the network and you have USB disks....
./techtipsy
Tech tip: eliminate HDD humming noise
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are...
over a year ago
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are probably familiar
with the acoustic characteristics of the drives. The drives have a loud hum caused
by WD running the drives at 7200rpm while claiming the drives to be...
watchTowr Labs -...
Veeam Backup & Response - RCE With Auth, But Mostly Without Auth (CVE-2024-40711)
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup &...
3 months ago
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup & Replication’. Unfortunately, so is every ransomware operator, given it's somewhat 'privileged position' in the storage world of most enterprise's networks. There's no point deploying...
Jonas Hietala
Settled on an unoriginal idea
I think I’ve decided what to do. Some very slight progress has been made.
over a year ago
I think I’ve decided what to do. Some very slight progress has been made.
Home on Erik...
Antipodes
I was playing around with D3 last night and built a silly visualization of antipodes and how our...
over a year ago
I was playing around with D3 last night and built a silly visualization of antipodes and how our intuitive understanding of the world sometimes doesn't make sense. Check out the visualization at bl.ocks.org!
Basically the idea is if you fly from Beijing to Buenos Aires then you...
Vitalik Buterin's...
The promise and challenges of crypto + AI applications
10 months ago
Vitalik Buterin's...
The Limits to Blockchain Scalability
over a year ago
Matt Blewitt
Leadership Power Tools: SQL and Statistics
A common pattern I’ve seen over the years have been folks in engineering leadership positions that...
2 weeks ago
A common pattern I’ve seen over the years have been folks in engineering leadership positions that are not super comfortable with extracting and interpreting data from stores, be it databases, CSV files in an object store, or even just a spreadsheet. We’re going to cover SQL &...
Jonas Hietala
My Minions
So I think I made it! It became a pretty different game from what I set out to create, but I’m glad...
over a year ago
So I think I made it! It became a pretty different game from what I set out to create, but I’m glad with how it turned out.
My Minions
Instructions
Build a pathway and then place objects or release minions on it, everything must be on a path. Place musical objects or make the...
Push to Prod
One Key Aspect of Optimizing Computational Throughput
When optimizing throughput, think carefully about how many CPUs you have when adding threads or...
3 months ago
When optimizing throughput, think carefully about how many CPUs you have when adding threads or processes.
Louwrentius
Blu Ray is dead
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead....
over a year ago
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead. Honestly, who is still burning CD's or DVD's nowadays? (If you
are, why for Christ sake? I can't think of a single good reason) And at 10
euros ($100) for a single Blu Ray disk, you must...
Nabeel S. Qureshi
How To Sell
Sales at a startup is counter-intuitive.
over a year ago
Sales at a startup is counter-intuitive.
somenice
Matter as a Smart home standard
Matter is the name of the smart home standard that promises to bridge IOT devices and different home...
8 months ago
Matter is the name of the smart home standard that promises to bridge IOT devices and different home eco-systems. Amazon Alexa, Google Home, Apple Homekit, Samsung SmartThings, etc. To prevent 6+ flavours of smart lightbulbs working with 6+ different apps, a standard needed to be...
Notes on software...
Let's build a distributed Postgres proof of concept
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies...
over a year ago
What is CockroachDB under the hood? Take a look at
its go.mod
and notice a number of dependencies that do a lot of work: a
PostgreSQL wire protocol
implementation, a storage
layer, a Raft implementation
for distributed consensus. And not
part of go.mod but still building on 3rd...
Applied Cartography
Are monopolies bad, actually?
One of the more interesting theses advanced by Zero to One [1] is that monopolies are good to the...
9 months ago
One of the more interesting theses advanced by Zero to One [1] is that monopolies are good to the extent that they afford companies the agency and comfort to engage in long-term activities:
Monopolists can think about things other than making money; non-monopolists can’t. In...
computers are bad
2023-10-03 overheard overhead
Let's talk about overhead paging. The concept goes by various names: paging,
public address, even...
a year ago
Let's talk about overhead paging. The concept goes by various names: paging,
public address, even intercom, although the accuracy of the latter term can be
questionable. It's probably one of the aspects of business telephone systems
that gets the most public attention, on account...
Louwrentius
I made my blog solar-powered, then things escalated
In 2020 I wondered if I could run my blog on solar power, being inspired by Low-tech Magazine, doing...
a year ago
In 2020 I wondered if I could run my blog on solar power, being inspired by Low-tech Magazine, doing the same thing (but better)1. The answer was 'yes', but only through spring and summer.
I live in an apartment complex in The Netherlands and my balcony is facing west. This...
Home on Erik...
More recommender algorithms
I wanted to share some more insight into the algorithms we use at Spotify. One matrix factorization...
over a year ago
I wanted to share some more insight into the algorithms we use at Spotify. One matrix factorization algorithm we have used for a while assumes that we have user vectors $$ bf{a}_u $$ and item vectors $$ bf{b}_i $$ .
Neil Madden
Entity authentication with a KEM
In cryptography, the process of authenticating a user (or app/service) is known as entity...
a year ago
In cryptography, the process of authenticating a user (or app/service) is known as entity authentication or identification (to distinguish it from message authentication or data origin authentication). There are lots of ways to do this. In this post I’m going to talk about...
Lars Lofgren
CNN and USA Today Have Fake Websites, I Believe Forbes Marketplace Runs Them
What if I told you that Forbes Marketplace, the affiliate company operating on Forbes.com ALSO had...
2 months ago
What if I told you that Forbes Marketplace, the affiliate company operating on Forbes.com ALSO had agreements with CNN and USA Today? And that Forbes Marketplace was stuffing those sites full of affiliate content just like it is with Forbes? And what if Forbes Marketplace went to...
Home on Erik...
Momentum strategies
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday...
over a year ago
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday night. Basically I wanted to know whether momentum strategies work well for international stock indexes. I spent a bit of time putting together a strategy that buys the stock index if...
Vitalik Buterin's...
Why Proof of Stake (Nov 2020)
over a year ago
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...
Christian Selig
The Caldera: a sleek split and wireless keyboard
I designed my own keyboard and it’s freely available! I’m calling it the Caldera, and it’s basically...
5 months ago
I designed my own keyboard and it’s freely available! I’m calling it the Caldera, and it’s basically my dream wireless split keyboard.
I’ve been using it for months, and I love it.
Video overview
If you’re a visual person, I made a fun little video showcasing the...
./techtipsy
About the time my ThinkPad T430 ran with an external GPU
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in...
5 months ago
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in 2016 when the first university scholarship money dropped,
and it’s still my backup laptop of choice.
Around 2017 I did something every reasonable poor computer science...
Notes on software...
Starting a minimal Common Lisp project
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like...
over a year ago
If you've only vaguely heard of Lisp before or studied Scheme in
school, Common Lisp is nothing like what you'd expect. While
functional programming is all the rage in Scheme, Common Lisp was
"expressly designed to be a real-world engineering language rather
than a theoretically...
Willem's Blog
One year on the ultimate commuter bike
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike...
over a year ago
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike after one year of extensive use through winter and summer.
Posts on Made of...
Exploiting misuse of Python's "pickle"
If you program in Python, you’re probably familiar with the pickle serialization library, which...
over a year ago
If you program in Python, you’re probably familiar with the pickle serialization library, which provides for efficient binary serialization and loading of Python datatypes. Hopefully, you’re also familiar with the warning printed prominently near the start of pickle’s...
Jonas Hietala
The Coinparty hackathon, take two
In December I declared that I would enter a Bitcoin Cash hackathon and I was excited to give my...
over a year ago
In December I declared that I would enter a Bitcoin Cash hackathon and I was excited to give my procrastination a kick in the balls. Unfortunately the hackathon was postponed to January just an hour later. Maybe the organizers didn’t think my project was exciting enough or...
Vitalik Buterin's...
Layer 2s as cultural extensions of Ethereum
6 months ago
Vitalik Buterin's...
My 40-liter backpack travel guide
over a year ago
Notes on software...
How do databases execute expressions?
Databases are fun. They sit at the confluence of Computer
Science topics that might otherwise not...
a year ago
Databases are fun. They sit at the confluence of Computer
Science topics that might otherwise not seem practical in life as a
developer. For example, every database with a query language is also a
programming language implementation of some caliber. That doesn't
include all...
Applied Cartography
Applied Cartography × Val Town
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If...
a month ago
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If you haven't used Val, well, watch the stream — think live, zero-deploy code snippets that can be arbitrarily extended and executed.)
Reflecting on the experience, the most exciting...
Vitalik Buterin's...
Review of Gitcoin Quadratic Funding Round 4
over a year ago
Notes on software...
Transparency and communication on small teams
I saw a post on
dev.to
that talks about dysfunctional teams. This is a response that...
over a year ago
I saw a post on
dev.to
that talks about dysfunctional teams. This is a response that focuses
specifically on how to prevent burnout from overworking. This is aimed
at senior/lead engineers and engineering/project managers -- because
everyone in a leadership role is responsible...
Willem's Blog
Programming on Apple Watch
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard
over a year ago
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard
Computer Ads from...
The Grand Stand
Joystick Stabilizer Support & Score Enhancer
a month ago
Joystick Stabilizer Support & Score Enhancer
Jonas Hietala
Robot Project Start
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot....
over a year ago
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot. We’re gonna do battle with infrared lasers instead of axes but it might be fun anyway. Luckily for me I’m responsible for software and nothing harder than that! w00p!
We could...
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.
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.
Abort Retry Fail
The History of OS/2
Getting a Divorce
a year ago
Arduino Blog
Circuit Canvas can help you quickly create illustrated wiring diagrams
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit...
5 months ago
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit designs, but traditional schematics and technical drawings are difficult for non-professionals to interpret and create. Makers can benefit from intuitive illustrations that look good...
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!
Posts on Made of...
amd64 and va_arg
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t...
over a year ago
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t support the va_arg intrinsic, used by functions to accept multiple arguments, at all on amd64. It turns out that clang and llvm-gcc, the compilers that backend to LLVM, have their own...
Vitalik Buterin's...
Notes on Blockchain Governance
over a year ago
Jonas Hietala
Up like a Sun, Down like a Pancake
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But...
over a year ago
I was looking forward to this weekend, for Ludum Dare and for me to finally make a game again. But it just don’t feel right to me. I’m not prepared, I feel a little bit stressed and I don’t really have faith in my game so I’m gonna step down this one as well. But it’s fine, Ludum...
Posts on Made of...
Design for Testability
When designing a new software project, one is often faced with a glut of choices about how to...
over a year ago
When designing a new software project, one is often faced with a glut of choices about how to structure it. What should the core abstractions be? How should they interact with each other?
In this post, I want to argue for a design heuristic that I’ve found to be a useful guide to...
Simply Explained
Analyzing Link Rot in My Newsletter (After 31 Editions)
I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to...
a year ago
I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to interesting articles related to science and technology. I thought it would be interesting to analyze how many of those links are still accessible, and how many have succumbed to link rot....
Jonas Hietala
Friend of the Tree
I just noticed I was recognized as a friend of the tree in a weekly meeting by the rust team. It...
over a year ago
I just noticed I was recognized as a friend of the tree in a weekly meeting by the rust team. It came during my documentation sprint during IDA Summer of Code and I discovered it now, only two and a half month later. Still a very pleasant surprise!
Home on Erik...
Benchmarking nearest neighbor libraries in Python
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in...
over a year ago
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in Python. This is exciting, because one of the libraries he's covering, annoy, was built by me.
After introducing the problem, he goes through the list of contestants and sticks with...
Applied Cartography
PSA: mess around with Kolo
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with...
9 months ago
I had bookmarked Kolo many months ago to try out and finally got a chance to integrate it with Buttondown — a process that I expected to take a couple hours on a lazy Sunday and in fact took ten minutes and three lines of code.
If you have a Django app, I think you should drop...
Louwrentius
Switching away from Debian to Ubuntu LTS
Over the last couple of years, Debian Linux has released new stable versions about every two years....
over a year ago
Over the last couple of years, Debian Linux has released new stable versions about every two years. This pace is great for progress, but there is a serious problem. This problem is related to their support for older Debian stable versions.
If you read the quote below from the...
Notes on software...
Writing a simple JSON parser
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format...
over a year ago
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format is extremely simple. It's defined
recursively so you get a slight challenge compared to, say, parsing
Brainfuck; and you probably
already use JSON. Aside from that last point,...
watchTowr Labs -...
Visionaries Have Democratised Remote Network Access - Citrix Virtual Apps and Desktops...
Well, we’re back again, with yet another fresh-off-the-press bug chain (and associated Interactive...
a month ago
Well, we’re back again, with yet another fresh-off-the-press bug chain (and associated Interactive Artifact Generator). This time, it’s in Citrix’s “Virtual Apps and Desktops” offering.
This is a tech stack that enables end-users (and likely, your friendly neighbourhood...
Willem's Blog
MUSE in Carré
MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying...
over a year ago
MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying experience - read about my experience!
Lighthouse Blog
How to stay on top of (new) content
6 months ago
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian
I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
6 months ago
I use note-taking software every day. I use it for journaling, blogging, capturing ideas, researching technologies, managing my projects, and many other things. Writing is how I think through problems, and note-taking software makes all that thinking easy to search and...
Posts on Made of...
How is duct tape like the force?
I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con...
over a year ago
I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con again, I needed to do something in terms of costuming, and I wanted it to be something unique – I wasn’t going to come anywhere near as epic as some of the costumes people pull...
Louwrentius
RAID array size and rebuild speed
When a disk fails of a RAID 5 array, you are no longer protected against
(another) disk failure and...
over a year ago
When a disk fails of a RAID 5 array, you are no longer protected against
(another) disk failure and thus data loss. During this rebuild time, you are
vulnerable. The longer it takes to rebuild your array, the longer you are
vulnerable. Especially during a disk-intensive period,...
Home on Erik...
I'm featured in Mashable
This article from today in Mashable describes some of the fun stuff I get to work with:
Erik...
over a year ago
This article from today in Mashable describes some of the fun stuff I get to work with:
Erik Bernhardsson is technical lead at Spotify, where he helped to build a music recommendation system based on large-scale machine learning algorithms, mainly matrix factorization of big...
Ken Shirriff's blog
Reverse engineering the barrel shifter circuit on the Intel 386 processor die
The Intel 386 processor (1985) was a large step from the 286 processor, moving x86 to a 32-bit...
a year ago
The Intel 386 processor (1985) was a large step from the 286 processor, moving x86 to a 32-bit architecture.
The 386 also dramatically improved the performance of shift and rotate operations by adding a
"barrel shifter", a circuit that can shift by multiple bits in one step.
The...
seangoedecke.com RSS...
From hours to seconds: AI tools to detect animal calls
If you’re currently spending time listening to long audio recordings of birdcalls or animal noises,...
8 months ago
If you’re currently spending time listening to long audio recordings of birdcalls or animal noises, it’s likely that the last four years of…
Lighthouse Blog
Updates November 4: Free newsletter to RSS tool
a month ago
Arduino Blog
Meet Real Robot One V2: A mini DIY industrial robot arm
Started in 2022 as an exploration of what’s possible in the field of DIY robotics, Pavel Surynek’s...
5 months ago
Started in 2022 as an exploration of what’s possible in the field of DIY robotics, Pavel Surynek’s Real Robot One (RR1) project is a fully-featured 6+1-axis robot arm based on 3D-printed parts and widely available electronics. The initial release was constructed with PETG...
Good Enough
The Space Between Us
Good Enough is a fully-remote team, and I think it's safe to say that we'll never have a physical...
a year ago
Good Enough is a fully-remote team, and I think it's safe to say that we'll never have a physical office. I've been working remotely for more than ten years, and overall I really like it. I love the flexibility it affords, being more present with our families, and that my...
Louwrentius
Redhat explains why chroot is not a security feature
I came across this Redhat security blog post that explains why the chroot command has it's uses, but...
over a year ago
I came across this Redhat security blog post that explains why the chroot command has it's uses, but it isn't magic security pixie dust. Running an application from within a chrooted jail or just on a well-configured system would result in the same level of security.
Josh...
csvbase blog
Take the tools out of 'Data', but don't take the data out of the tools
Using dataframes to write smaller, faster programs
a year ago
Using dataframes to write smaller, faster programs
Home on Erik...
Welcome Echo Nest!
In case you missed it, we just acquired a company called Echo Nest in Boston. These people have been...
over a year ago
In case you missed it, we just acquired a company called Echo Nest in Boston. These people have been obsessed with understanding music for the past 8 years since it was founded by Brian Whitman and Tristan Jehan out of MIT Medialab.
./techtipsy
Monitoring energy usage with smart plugs, Prometheus and Grafana
This post isn’t a detailed line-by-line tutorial on how to set up each individual piece of the setup...
7 months ago
This post isn’t a detailed line-by-line tutorial on how to set up each individual piece of the setup as those types of
guides tend to get out of date really easily, but if you know your way around Linux and the command line, then you can
definitely replicate this setup on your...
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!
lcamtuf’s thing
Building a phosphorescence detector
There's very little written about natural phosphorescence. Let's design a device that can spot it in...
3 weeks ago
There's very little written about natural phosphorescence. Let's design a device that can spot it in the wild.
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...
Louwrentius
The downside of 120 Mbit broadband internet
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of...
over a year ago
My Dutch ISP Ziggo provides internet access through DOCSIS cable modems. They are now capable of providging 120 Mbit downstream and 10 Mbit upstream, for an affordable price.
In a way this is mind boggling. Most people have 100 Mbit home networks that are not capable of handling...
Gwern.net Newsletter
February 2021 Gwern.net Newsletter
links on AI scaling, semaglutide, and ethicist ethics
over a year ago
links on AI scaling, semaglutide, and ethicist ethics
Arduino Blog
This DIY smart chicken coop features AI-based predator detection
Raising chickens can be a very rewarding endeavor, as they can provide fresh daily eggs and help get...
a month ago
Raising chickens can be a very rewarding endeavor, as they can provide fresh daily eggs and help get rid of pests in the yard. But, like all animals, they require care. Most importantly, you’ll need to ensure that they have regular food and water, and you’ll need to protect them...
Jonas Hietala
Monaco What's Yours is Mine
I’ve been waiting for soon to be three years for Monaco What’s Yours is Mine, and today I was...
over a year ago
I’ve been waiting for soon to be three years for Monaco What’s Yours is Mine, and today I was granted an early christmas present - I was given a beta key! w00p!!
I was planning on studying and sending some emails to some companies… But who knows what I’ll end up doing?
Tomorrow...
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!
Arduino Blog
Make your scary Halloween pumpkin smart with the Plug and Make Kit!
With Halloween just around the corner, we’ve got the perfect project to make your decorations more...
2 months ago
With Halloween just around the corner, we’ve got the perfect project to make your decorations more fun and interactive. All you have to do is take the Arduino UNO R4 WiFi and Modulino nodes included in your Plug and Make Kit to create an awesome jack-o’-lantern that will light up...
Notes on software...
Why (and how) to read books
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I...
over a year ago
The last time I read for fun was in elementary school. Since college I
knew I must read more, but I never forced myself to build the
habit. Then three years ago I spent time around my brother and a
coworker who were avid readers. This "peer pressure" helped me get
started.
Since...
Home on Erik...
More Luigi!
Continuing in the same spirit of shameless self-promotion, here's some recent Luigi press:
Reddit...
over a year ago
Continuing in the same spirit of shameless self-promotion, here's some recent Luigi press:
Reddit thread A Guide to Python Frameworks for Hadoop (slides from the NYC Hadoop User Group) This presentation from the Open Analytics NYC meetup about how Foursquare uses Luigi Luigi...
Home on Erik...
The Filter Bubble is Silly and you Can't Guess What Happened Next
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here...
over a year ago
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here was about the filter bubble which prompted me to formalize my own thoughts.
I firmly believe that it's the role of a system to respect the user's intent.
Old Vintage...
xa (xa65) 2.4.1
A quick one: xa (xa65), André Fachat's compatible fast two-pass cross-assembler for 6502, 65C02,...
9 months ago
A quick one: xa (xa65), André Fachat's compatible fast two-pass cross-assembler for 6502, 65C02, R65C02 and 65816 processors that André and I maintain is now at version 2.4.1. This optionally expands the syntax from 2.4.0 and fixes some bugs primarily with relocatable .o65...
Louwrentius
overview of open-source load balancers
I was looking at open-source load balancing software and it seems that there isn't a nice overview...
over a year ago
I was looking at open-source load balancing software and it seems that there isn't a nice overview except from this website, although many of the listed projects seem dead.
I've made a selection of products that seem to be relevant. The biggest problem with open-source software...
csvbase blog
Client libraries are better when they have no API
fsspec is secretly everywhere, and boss
8 months ago
fsspec is secretly everywhere, and boss
Style over Substance
How to use a Phase One H20 digital back on a medium format Hasselblad V camera (500EL/M)
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my...
over a year ago
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my Hasselblad 500EL/M medium format camera. Or, simply put, I bought an expensive old gadget for my even older analog camera, making it a digital camera. A gadget that was released in the...
Home on Erik...
Why organizations fail
One of my favorite business hobbies is to reduce some nasty decision down to its absolute core...
over a year ago
One of my favorite business hobbies is to reduce some nasty decision down to its absolute core objective, decide the most basic strategy, and then add more and more modifications as you have to confront the complexity of reality (yes I have very lame hobbies thanks I know).
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