Christian Selig
Apollo for Reddit 1.9
Apollo 1.9’s a massive update to Apollo that’s taken months and months to complete, but I’m really...
over a year ago
Apollo 1.9’s a massive update to Apollo that’s taken months and months to complete, but I’m really happy with the result, and it brings together a ton of ideas from the community to make Apollo even nicer to use. The update includes a variety of features around crossposts, flair,...
Ian's Blog
Why my Apps Aren't Available on Apple Vision Pro
Recently I have received some questions from users of both TLS Inspector and DNS Inspector enquiring...
5 months ago
Recently I have received some questions from users of both TLS Inspector and DNS Inspector enquiring why the apps aren't available on Apple's new Vision Pro headset. While I have briefly discussed this over on my Mastodon, I figured it might be worthwhile putting things down with...
Willem's Blog
Being a volunteer in Amsterdam-Zuidoost
About my work as volunteer in the local community center in Amsterdam Zuidoost
over a year ago
About my work as volunteer in the local community center in Amsterdam Zuidoost
Good Enough
Season 3, Issue 1: Whale, Hello There!
Dear friends, we have not been good at writing this newsletter regularly. But writing is hard work,...
a year ago
Dear friends, we have not been good at writing this newsletter regularly. But writing is hard work, and there’s only so much time we have, and there was the winter break and Shawn kept getting sick—we have many excuses, how much time do you have?
Gosh, since July of last year?...
Odds and Ends of...
Odds and Ends #49: How bat protection regulations broke Britain's planning system
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should...
a week ago
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should visit Jimmy Carter's hometown.
Vitalik Buterin's...
In-person meatspace protocol to prove unconditional possession of a private key
over a year ago
Good Enough
TIL: Merge nested attributes in Rails permit params
I am working on a new product that's a bit more complicated than our prior releases.
Getting...
a year ago
I am working on a new product that's a bit more complicated than our prior releases.
Getting refamiliarized with nested parameters in Rails has been interesting.
In this case imagine I have a discussion that, when creating it I also want to create the first comment.
The...
Electronics etc…
Symmetricom 58532A GPS Antenna Supply Voltage Mod
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A...
9 months ago
The Symmatricom 58532A
Opening up the 58532A
Voltage Regulation
Result
What about the other 58532A variant?
References
The Symmatricom 58532A
As part of a package deal, I got my hands on a Symmetricom 58532A L1
GPS antenna.
Microchip, which acquired Symmetricom in 2013, doesn’t...
Jonas Hietala
Home office renovation
When we moved back to our childhood community and bought a house I had one pretty big requirement: I...
over a year ago
When we moved back to our childhood community and bought a house I had one pretty big requirement: I had to have a home office as I need to work remote. There simply isn’t any software development work for me here.
So the later part of 2018 and early 2019 we’ve renovated an old...
Arduino Blog
This frighteningly realistic animatronic head features expressive silicone skin
The human face is remarkably complex, with 43 different muscles contorting the skin in all kinds of...
a month ago
The human face is remarkably complex, with 43 different muscles contorting the skin in all kinds of ways. Some of that is utilitarian — your jaw muscles are good for chewing, after all. But a lot of it seems to be the result of evolution giving us fantastic non-verbal...
Notes on software...
Picking up volleyball in NYC with Goodrec and New York Urban
I was so intimidated to go at first, but it is in fact easy and fun to
start playing beginner...
2 weeks ago
I was so intimidated to go at first, but it is in fact easy and fun to
start playing beginner volleyball in New York. The people are so
friendly and welcoming that it has been easy to keep playing
consistently every week since I started for the first time this
August. It's been a...
Odds and Ends of...
Important information if you used my Bluesky MP follows bot
Please read this immediately.
a month ago
Please read this immediately.
Posts on Made of...
Thoughts On Kubernetes
I spent a while the last week porting livegrep.com from running directly AWS to running on...
over a year ago
I spent a while the last week porting livegrep.com from running directly AWS to running on Kubernetes on Google’s Cloud Platform (specifically, the google container engine, which provisions and manages the cluster for me).
I left this experience profoundly enthusiastic about the...
Jonas Hietala
Recent experiences with Netrunner tournaments
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three...
over a year ago
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three tournaments during February - March. After each of these tournaments I started a writeup of them but they fell off my mind a bit but consider this my break with my blogging...
Jonas Hietala
Understanding the Computer
When I discovered programming it felt like a whole new world opened up for me with endless...
over a year ago
When I discovered programming it felt like a whole new world opened up for me with endless possibilities. It granted unlimited power and I could create virtually anything and it explained so much to me - how did a program work? How could you make a game or a website? But there...
Christian Selig
The Case for Getting Rid of TestFlight Review
I tweeted today about how I think TestFlight review should become a thing of the past and many...
over a year ago
I tweeted today about how I think TestFlight review should become a thing of the past and many developers seemed to agree, but some had questions so I wanted to expand on my thoughts a little.
TestFlight’s awesome. But like App Store submissions, TestFlight betas also require a...
Computer Ads from...
Intel's Inboard 386/PC
Welcome to the 1990s.
2 months ago
Good Enough
Thoughts On Thoughts
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our...
a year ago
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our thoughts and what we believe about them.
Or perhaps we can think of this as an intervention. This post is the circle of friends gathered to help us stop hitting ourselves in the...
computers are bad
2024-01-06 usb on the go
USB, the Universal Serial Bus, was first released in 1996. It did not achieve
widespread adoption...
a year ago
USB, the Universal Serial Bus, was first released in 1996. It did not achieve
widespread adoption until some years later; for most of the '90s RS-232-ish
serial and its
awkward sibling the parallel port
were the norm for external peripheral. It's sort of surprising that USB...
Jonas Hietala
Establishing Habits with Habitica
I have used Habitica the last 18 months to organize my habits and things I want to get done. I...
over a year ago
I have used Habitica the last 18 months to organize my habits and things I want to get done. I believe it all started with an amazing book called The Power of Habit which describes the amazing benefits habits can give, both in the context of your own life but also in business....
./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...
Electronics etc…
Guide Technology GT300 Frequency Standard Teardown
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [...
9 months ago
MathJax.Hub.Config({
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$', '$'], ["\\(", "\\)"] ],
displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ],
processEscapes: true,
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
computers are bad
2023-04-10 solving problems with chatgpt
One of the foundational goals of computer technology, at least as understood by
popular culture, is...
a year ago
One of the foundational goals of computer technology, at least as understood by
popular culture, is to automate away our jobs. When your job is (put simply) to
get computers to work correctly, there's sort of an irony to this view of
things. Still, just within the span of my...
Arduino Blog
Prototype faster and smarter in 2025: Meet the Arduino Pro Portenta Proto Kit
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how...
3 days ago
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how professionals approach prototyping. Designed to empower engineers, designers, and innovators from all walks of life, this kit provides everything you need to turn your ideas into...
Vitalik Buterin's...
Updating my blog: a quick GPT chatbot coding experiment
over a year ago
Lighthouse Blog
Updates September 9: Feed finding
4 months ago
Willem's Blog
Born with MCADD
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were...
over a year ago
Our son was diagnosed with MCADD days after he was born. We experienced a metabolic crisis but were lucky to be just in time!
Willem's Blog
Search like a pro: Google search operators
Read along for a comprehensive list of advanced Google search operators that allow you to filter...
over a year ago
Read along for a comprehensive list of advanced Google search operators that allow you to filter your search results.
Arduino Blog
This machine automatically creates chain art
Art is very personal and we often consider the process of creation itself when evaluating the...
5 months ago
Art is very personal and we often consider the process of creation itself when evaluating the resulting piece. Does a sculpture have more artistic value when molded by human hands rather than a 3D printer? Most would say that it does. But what if the automation was, itself, part...
Vitalik Buterin's...
Having a safe CEX: proof of solvency and beyond
over a year ago
Jonas Hietala
Postmortem: Jonas IceCream Stand
Ah my latest game Jonas IceCream Stand is finished and up and running and I’m really proud of it!...
over a year ago
Ah my latest game Jonas IceCream Stand is finished and up and running and I’m really proud of it! And thanks for the feedback guys, it’s always welcome.
I spent almost exactly fifty hours on this game and that’s by far the most I’ve spent on a 7day project. To be honest it’s...
Opsbros
Nokia 5110 - Back from the dead. Part 1: Nostalgia
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and...
over a year ago
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and still-memed mobile phone. As it turns out, not only is it possible, but it's going to be a lot easier than I anticipated.
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.
Good Enough
TIL: Listen for JavaScript events only once!
A common thing I find myself doing in Javascript is adding some event driven behavior that I only...
a year ago
A common thing I find myself doing in Javascript is adding some event driven behavior that I only want to happen once. Let’s say I have a big button that starts the process of lowering a certain spy into a pool of certain doom — I don’t want a second button press to awkwardly...
./techtipsy
They make USB-C cables with displays now!
I’ve reached a point in my setup where most of the devices that I use are
based around the coveted...
7 months ago
I’ve reached a point in my setup where most of the devices that I use are
based around the coveted USB-C port. This meant that I had a valid reason to get
a few extra because I didn’t yet have a stockpile of good USB-C cables.
That’s when I found out that there exist cables that...
Jonas Hietala
Postmortem: Sat-E
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The...
over a year ago
This is my postmortem for my Ludum Dare 22 entry, Sat-E. You can find the timelapse over here.
The Good
Motivation
I was really motivated for this dare and it showed in the game and outside it. It’s super hard to make a game in only 48 hours but this time it went pretty well. My...
Notes on software...
Running SQL Server in a container on Github Actions
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Applied Cartography
Applied Cartography × People & Blogs
There are few pleasures greater than getting to be profiled for an interview series that you've been...
2 months ago
There are few pleasures greater than getting to be profiled for an interview series that you've been reading for months, and last week I got to do exactly that.
To browse Manu's site — not just this interview series — feels a bit like walking on a quiet beach in autumn: there's a...
Notes on software...
Building a fast SCSS-like rule expander for CSS using fuzzy parsing
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.
Applied Cartography
Peak Newsletter
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to...
5 months ago
A handful of folks sent me this quip from Nate Silver a few days ago:
Slightly against interest to admit this (I don't want more competition lol) but I think we're still probably a year or two away from Peak Newsletter. It's just a really good distribution mechanism for certain...
Azad's Blog
RealityCapture to Gaussian Splatting using PostShot
TLDR: Tutorial on using RealityCapture to align an image dataset, export the alignment, and import...
5 months ago
TLDR: Tutorial on using RealityCapture to align an image dataset, export the alignment, and import it into PostShot to train Gaussian Splats without using COLMAP. Video tutorial RealityCapture Import your images and align them. If you ever need help with tricky dataset, refer to...
computers are bad
2024-07-31 just disconnect the internet
So, let's say that a security vendor, we'll call them ClownStrike, accidentally
takes down most of...
5 months ago
So, let's say that a security vendor, we'll call them ClownStrike, accidentally
takes down most of their Windows install base with a poorly tested content
update. Rough day at the office, huh? There are lots of things you could say
about this, lots of reasons it happens this way,...
Buck on Software
23 things you should know
1: Management’s true confidence is reflected in how fast they are hiring
over a year ago
1: Management’s true confidence is reflected in how fast they are hiring
Computer Ads from...
MicroSpeed PC-TRAC
Let's Get Right To the Point
7 months ago
Let's Get Right To the Point
Arduino Blog
Exercise while you game with this interactive treadmill add-on
Motion-based controls for games have been around for decades, but even with the latest generation of...
4 months ago
Motion-based controls for games have been around for decades, but even with the latest generation of virtual reality headsets, gaming is still done with relatively limited movement unless one has access to an expensive VR walking/running setup. As an effort to get more physical...
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
Building my ultimate keyboard
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate...
a month ago
The Cybershard keyboard.
What comes to mind when you see the description “the ultimate keyboard”?
There are many keyboards in this world; here are some that might fit the “ultimate” moniker:
Das Keyboard 4 Ultimate mechanical keyboard
DataHand
Ergodox EZ
Glove80
Happy...
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...
Arduino Blog
Track the location history of your devices in Arduino Cloud IoT dashboards
Asset tracking has become increasingly crucial across various industries and applications. Whether...
7 months ago
Asset tracking has become increasingly crucial across various industries and applications. Whether you’re a logistics company monitoring your fleet, a conservation organization tracking wildlife, or an individual passionate about outdoor adventures, the ability to track and...
Style over Substance
How I made HA-meural: a Meural Canvas integration for Home Assistant
One of my 2020 lockdown projects I’m extremely proud of is HA-meural – a custom integration for the...
over a year ago
One of my 2020 lockdown projects I’m extremely proud of is HA-meural – a custom integration for the Home Assistant home automation software that lets you control a NETGEAR Meural Canvas digital frame. It’s the result of a few months of work, lots of trial and error, and many...
Notes on software...
A write-ahead log is not a universal part of durability
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its...
6 months ago
A database does not need a write-ahead log (WAL) to achieve
durability. A database can write its long-term data structure durably
to disk before returning to a client. Granted, this is a bad idea! And
granted, a WAL is critical for durability by design in most
databases. But I...
Home on Erik...
The half-life of code & the ship of Theseus
As a project evolves, does the new code just add on top of the old code? Or does it replace the old...
over a year ago
As a project evolves, does the new code just add on top of the old code? Or does it replace the old code slowly over time? In order to understand this, I built a little thing to analyze Git projects, with help from the formidable GitPython project.
Notes on software...
Leaders, you need to share organization success stories more frequently
This post goes out to anyone who leads a team: managers, directors,
VPs, executives. You need to...
over a year ago
This post goes out to anyone who leads a team: managers, directors,
VPs, executives. You need to share organization success stories with
your organization on a regular and frequent basis. Talk about sales
wins, talk about new services released, talk about the positive impact
of a...
Posts on Made of...
What's with ML software and pickles?
I have spent many years as an software engineer who was a total outsider to machine-learning, but...
a year ago
I have spent many years as an software engineer who was a total outsider to machine-learning, but with some curiosity and occasional peripheral interactions with it. During this time, a recurring theme for me was horror (and, to be honest, disdain) every time I encountered the...
Louwrentius
Benchmark results of Random I/O performance of different RAID levels
Introduction
I have performed some benchmarks to determine how different RAID levels perform when...
over a year ago
Introduction
I have performed some benchmarks to determine how different RAID levels perform when handling a 100% random workload of 4K requests. This is a worst-case scenario for almost every storage subsystem. Normal day-to-day workloads may not be that harsh in a real-life...
Good Enough
My Tears of the Kingdom Addiction
I don’t know how big my internet social bubble really is, but it feels like everyone in the world...
a year ago
I don’t know how big my internet social bubble really is, but it feels like everyone in the world that bubble has been playing a lot of The Legend of Zelda: Tears of the Kingdom lately. Me included! It’s amazing, and I’m thoroughly engrossed—I think I’ve stayed up playing until...
Posts on Made of...
Stripe's monorepo developer environment
I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed...
7 months ago
I worked at Stripe for about seven years, from 2012 to 2019. Over that time, I used and contributed to many generations of Stripe’s developer environment – the tools that engineers used daily to write and test code. I think Stripe did a pretty good job designing and building that...
Neil Madden
How do you use a bearer URL?
In “Towards a standard for bearer token URLs”, I described a URL scheme that can be safely used to...
over a year ago
In “Towards a standard for bearer token URLs”, I described a URL scheme that can be safely used to incorporate a bearer token (such as an OAuth access token) into a URL. That blog post concentrated on the technical details of how that would work and the security properties of the...
Engineers Need Art
Casady & Greene
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software...
4 months ago
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software publishing.
Arduino Blog
Project Hub’s new featured pages are your gateway to inspiration!
Arduino’s Project Hub is more than just a platform; it’s a vibrant community where members share...
6 months ago
Arduino’s Project Hub is more than just a platform; it’s a vibrant community where members share their ideas and achievements, contributing to our knowledge base and inspiring everyone to make, learn, and try something new. With close to 5,400 projects, including tutorials,...
Old Vintage...
Commodore does the iPad "crush" concept right ... in 1985
I get what Apple was trying to say with their infamous Crush ad, even though they made it a little...
7 months ago
I get what Apple was trying to say with their infamous Crush ad, even though they made it a little weird. They should have simply done what Commodore did for the C128 — ironically, competing with the Apple IIc. Notice the emphasis on audio and sound, plus the Commodore 64 perched...
Louwrentius
20 disk 18 TB RAID 6 storage based on Debian Linux
This system is no longer operational and has been decomissioned (2017)
This is my NAS storage server...
over a year ago
This system is no longer operational and has been decomissioned (2017)
This is my NAS storage server based on Debian Linux. It uses software RAID and 20 one
terrabyte hard drives. It provides a total usable storage capacity of 18 terrabytes in a single RAID 6 array.
One of the...
lcamtuf’s thing
A 15-minute intro to hobby CNC
In which the author tilts at windmills for a brief while.
4 months ago
In which the author tilts at windmills for a brief while.
./techtipsy
Cool projects
This is an unsorted list of projects that really cool and neat.
Chromebook cluster
someone took...
a year ago
This is an unsorted list of projects that really cool and neat.
Chromebook cluster
someone took some old Chromebooks, stripped them down and built a cluster. I love this kind of jank!
Willem's Blog
From tree to table
Creating a night stand from a raw slab of chestnut wood.
over a year ago
Creating a night stand from a raw slab of chestnut wood.
Matt Mullenweg
Cloudflare Stories
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s...
2 months ago
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s incredible story about Tim Jenkin, who created a secure communication protocol for the African National Congress to overthrow the apartheid regime in South Africa. Cloudflare’s CTO,...
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...
Avestura's Blog
Explaining The Postgres Meme
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
a year ago
Have you seen this legendary SQL iceberg meme? Let's talk about it while wearing our PostgreSQL hat!
Simply Explained
Retrospective: My Fifth Year on YouTube
For the past 4 years, I have made a habit of reflecting on the previous year and set goals for the...
over a year ago
For the past 4 years, I have made a habit of reflecting on the previous year and set goals for the new year. This year is no exception, but now I try to set better goals while reflecting on some personal things in life.
computers are bad
2024-10-19 land art and isolation
Prescript: I originally started writing this with the intent to send it out to
my supporter's...
2 months ago
Prescript: I originally started writing this with the intent to send it out to
my supporter's newsletter, EYES ONLY, but it
got to be long and took basically all day so I feel like it deserves wider
circulation. You will have to tolerate that it begins in the more
conversational...
Jonas Hietala
Let's build a VORON: Smaller fixes
I’ve been busy.
Busy printing stuff.
Which is awesome, because one big worry I had was if I’d...
11 months ago
I’ve been busy.
Busy printing stuff.
Which is awesome, because one big worry I had was if I’d actually use the printer or just end up modding and tweaking it until the end of time.
But of course, I’ve been slowly working through my large mods-I-want list.
My initial plan was to...
Push to Prod
4 Ways To Say No, Elegantly and Effectively
In my early days at Netflix, my inability to say no led me into unpleasant terrain. Here's how I...
4 months ago
In my early days at Netflix, my inability to say no led me into unpleasant terrain. Here's how I evolved to navigate these situations more fluidly.
Louwrentius
Creating storage benchmark charts with FIO and GNUplot
Edit 2019: I've made a new tool called 'fio-plot'to create various graphs.
I use FIO to perform...
over a year ago
Edit 2019: I've made a new tool called 'fio-plot'to create various graphs.
I use FIO to perform storage IO performance benchmarks. FIO does provide a script called "fio_generate_plots" which generates PNG or JPG based charts based on the data generated by FIO. The charts are...
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!
Notes on software...
React without webpack: fast path to a working app from scratch
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.
Vitalik Buterin's...
STARKs, Part II: Thank Goodness It's FRI-day
over a year ago
Matt Mullenweg
I Voted!
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a...
2 months ago
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a last-minute flight to Houston and this morning walked over to Congregation Emanu El and voted. It is our most sacred duty as a citizen. I encourage every American to vote.
Vitalik Buterin's...
From prediction markets to info finance
2 months ago
Home on Erik...
Business secrets from terrible people
I get bored reading management books very easily and lately I've been reading about a wide range of...
over a year ago
I get bored reading management books very easily and lately I've been reading about a wide range of almost arbitrary topics. One of the lenses I tend to read through is to see different management styles in different environments.
Notes on software...
The case for comments in code
When I first started programming, especially when asked for code
samples, my comments lacked purpose...
over a year ago
When I first started programming, especially when asked for code
samples, my comments lacked purpose and would often duplicate in
English what the code clearly indicated. I knew that "commenting is
good" but as a beginner I had no further insight.
Over time with the help of books...
Willem's Blog
Abandoning my own tablet OS
After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro...
over a year ago
After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro and the Mac.
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.
Arduino Blog
ThermoGrasp brings thermal feedback to virtual reality
Imagine playing Half-Life: Alyx and feeling the gun heat up in your hand as you take down The...
3 months ago
Imagine playing Half-Life: Alyx and feeling the gun heat up in your hand as you take down The Combine. Or operating a robot through augmented reality and feeling coldness on your fingers when you get close to exceeding the robot’s limits. A prototype device called ThermoGrasp...
Home on Erik...
Optimizing over multinomial distributions
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 +...
over a year ago
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 + ldots + w_n = 1 $$ and $$ 0 le w_i le 1 $$ . Usually, $$ f $$ is concave and differentiable, so there's one unique global maximum and you can solve it by applying gradient ascent.
Jonas Hietala
Black and White
Here it is at last! Boasting a unoriginal name, themed Bare Minimum. My thoughts where to create a...
over a year ago
Here it is at last! Boasting a unoriginal name, themed Bare Minimum. My thoughts where to create a game where graphics where included into the gameplay but sadly it didn’t come out nearly as good as I expected it too.
Yes I know there are a lot of things bad and wrong with this...
Home on Erik...
Momentum and mean reversion might just be volatility bias
The Economist just published an article called The best, the worst and the ugly. By looking at...
over a year ago
The Economist just published an article called The best, the worst and the ugly. By looking at historical performance for mutual funds, they find strong support for momentum and mean reversion. Picking the best or the worst fund over the previous five years gives great returns...
Home on Erik...
Where do locals go in NYC?
One obvious thing to anyone living in NYC is how tourists cluster in certain areas. I was curious...
over a year ago
One obvious thing to anyone living in NYC is how tourists cluster in certain areas. I was curious about the larger patterns around this, so I spent some time looking at data. The thing I wanted to understand is: what areas are dominated by tourists?
Notes on software...
Writing a simple Python compiler: 1. hello, fibonacci
In this post we'll write a Python to C compiler in Python. This is
especially easy to do since...
over a year ago
In this post we'll write a Python to C compiler in Python. This is
especially easy to do since Python has a builtin parser
library and because a
number of CPython internals are exposed for extension
writers.
By the end of this post, in a few hundred lines of Python, we'll be able...
Jonas Hietala
Starcraft 2 Keycaps
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure...
over a year ago
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure they cost almost 10x as much as a “regular” one and they didn’t even have these funky multimedia keys, what gives? Did I loose my insanity? It was supposed to give a great typing...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 4: The Verge
2 months ago
Jonas Hietala
Why make games
Why did I start making games? Because I like to play them of course. Think of all the fantastic...
over a year ago
Why did I start making games? Because I like to play them of course. Think of all the fantastic games; Super Mario, Lemmings, Tetris, GTA, The Sims, Counterstrike, Theme Hospital, SimCity and Rollercoaster Tycoon… Damn - when you count them like this you’ll see how many great...
Home on Erik...
Snakebite
Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie....
over a year ago
Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie. It's a super fast tool to access HDFS over CLI/Python, by accessing the namenode directly over sockets/protobuf.
Spotify's developer blog features a nice blog post outlining what...
Home on Erik...
New benchmarks for approximate nearest neighbors
UPDATE(2018-06-17): There are is a later blog post with newer benchmarks!
One of my super nerdy...
over a year ago
UPDATE(2018-06-17): There are is a later blog post with newer benchmarks!
One of my super nerdy interests include approximate algorithms for nearest neighbors in high-dimensional spaces. The problem is simple. You have say 1M points in some high-dimensional space.
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...
computers are bad
2023-07-15 underwater ears everywhere
Programming note: the subscribe link was broken for a while because I am
bad at computers (yet...
a year ago
Programming note: the subscribe link was broken for a while because I am
bad at computers (yet another case of "forgot to enable the systemd unit").
It's fixed now. The unsubscribe link was also broken and is now fixed but,
you know, maybe that was a feature. Did wonders for...
Willem's Blog
Updating Snake '97
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97...
over a year ago
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97 game. Read about the design challenges in this blog post.
Arduino Blog
This fake CRT TV works using lasers and UV magic
Until the 21st century, cathode-ray tube (CRT) TVs were pretty much the only option. As such, media...
a month ago
Until the 21st century, cathode-ray tube (CRT) TVs were pretty much the only option. As such, media was made to suit them. Retro video game consoles in particular look best on CRT TVs. But those old TVs are getting hard to find and desirable models are now quite expensive. So,...
./techtipsy
btrbk is awesome
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use...
over a year ago
I like having a safety net whenever I’m doing something potentially destructive,
which is why I use the btrfs file system for my operating system and my data.
Snapshots are one half of my “whoops, there goes all my work” strategy (backups
are the other half).
I’ve written about...
Jonas Hietala
Hearthstone on Wine
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play...
over a year ago
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play it. It didn’t work in vanilla wine, with a “time out error”, but I found a bug report which makes it work. Here’s a short summary:
Get wine source from git. My version was...
Home on Erik...
Software Engineers and Automation
Every once in a while when talking to smart people the topic of automation comes up. Technology has...
over a year ago
Every once in a while when talking to smart people the topic of automation comes up. Technology has made lots of occupations redundant, so what's next?
Switchboard operator, a long time ago
What about software engineers?
Arduino Blog
Shop vac becomes a Roomba on steroids
A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and...
8 months ago
A robotic vacuum, such as a Roomba, offers a lot of convenience. Instead of having to vacuum and sweep your own floors, you have a little maid robot to do the job for you. But these devices have very little power and capacity, which makes them useless for anything other than...
Construction Physics
What Learning by Doing Looks Like
The evolution of polycrystalline diamond drill bits
4 weeks ago
The evolution of polycrystalline diamond drill bits
Neil Madden
Multiple input MACs
When working with Message Authentication Codes (MACs), you often need to authenticate not just a...
over a year ago
When working with Message Authentication Codes (MACs), you often need to authenticate not just a single string, but multiple fields of data. For example, when creating an authenticated encryption mode by composing a cipher and a MAC (like AES-CBC and HMAC), you need to ensure the...
detreville
🎼This Is the Worst Trip I’ve Ever Been On 🎶
(A Lengthy Vacation Post-Mortem)
8 months ago
(A Lengthy Vacation Post-Mortem)
./techtipsy
Your Wi-Fi might be terrible because of Dynamic Frequency Selection (DFS)
For a few months, I had issues with my Wi-Fi network. The 2.4 GHz network would be fine, but the 5...
2 months ago
For a few months, I had issues with my Wi-Fi network. The 2.4 GHz network would be fine, but the 5 GHz one would
suddenly stop working and completely disappear from the available Wi-Fi networks. OpenWRT upgrades also didn’t improve
the situation. This was very annoying.
After...
Vitalik Buterin's...
STARKs, Part I: Proofs with Polynomials
over a year ago
Good Enough
Strong Prototypes, Weakly Held
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in...
a year ago
Excuse any obtuse thoughts that make their way into this writing. I sat down to type with My Life in the Bush of Ghosts by Brian Eno and David Byrne as my soundtrack. This is an album I've never listened to before, and apparently I'm supposed to love it or hate it. Mostly the...
Arduino Blog
Can this tiny lawn mower robot cut it in the real world?
We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down...
6 months ago
We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down and consumer trust goes up. They work a bit like Roomba vacuums and pathfinding sophistication varies from one model to the next. But even the most basic models are still a lot...
Willem's Blog
Do amazing things with a focused mind
Read about my experience during the workshop I got as a birth day present involving the Wim Hof...
over a year ago
Read about my experience during the workshop I got as a birth day present involving the Wim Hof Method.
Computer Ads from...
Vote for the Topic of the March 2024 Plus Post
If you are a paid subscriber, voting is open for one week
10 months ago
If you are a paid subscriber, voting is open for one week
Electronics etc…
Tektronix TDS 684B Oscilloscope Button Swap
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End...
8 months ago
Introduction
Removing the panels
Swapping a Rotary Encoder
Putting it all back together
End Result
Introduction
I recently bought a TDS 684B for cheap at a government auction. With 1 GHz BW
and 5 Gsps sample rate, it can be used for those cases where my 350 MHz/2Gsps
Siglent...
Arduino Blog
Meet the CapibaraZero, a multifunctional security and hacking tool based on the Nano ESP32
In recent years, tools such as the FlipperZero have become quite popular amongst hobbyists and...
a month ago
In recent years, tools such as the FlipperZero have become quite popular amongst hobbyists and security professionals alike for their small size and wide array of hacking tools. Inspired by the functionality of the FlipperZero, Project Hub user ‘andreockx’ created a similar...
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...
computers are bad
2023-08-07 STIRred AND SHAKEN
In a couple of days, I pack up my bags to head for DEFCON. In a rare moment of
pre-planning, perhaps...
a year ago
In a couple of days, I pack up my bags to head for DEFCON. In a rare moment of
pre-planning, perhaps spurred by boredom, I looked through the schedule to see
what's in store in the world of telephony. There is a workshop on SS7, of
course [1], plenty of content on cellular, but...
Good Enough
TIL: Overriding Permalink Generation in FriendlyId
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails...
4 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...
Ken Shirriff's blog
Inside a vintage aerospace navigation computer of uncertain purpose
I recently obtained an aerospace computer from the early 1970s, apparently part of a navigation...
7 months ago
I recently obtained an aerospace computer from the early 1970s, apparently part of a navigation system.
Aerospace computers are an interesting but mostly neglected area of computer hardware, so I'm always delighted to
examine one up close.
In an era when most computers were large...
Home on Erik...
Deep learning for... chess
I've been meaning to learn Theano for a while and I've also wanted to build a chess AI at some...
over a year ago
I've been meaning to learn Theano for a while and I've also wanted to build a chess AI at some point. So why not combine the two? That's what I thought, and I ended up spending way too much time on it.
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...
Good Enough
Having Trouble Getting Started? Pair Up!
A body at rest tends to stay at rest, and a body in motion tends to stay in motion, unless acted on...
a year ago
A body at rest tends to stay at rest, and a body in motion tends to stay in motion, unless acted on by a net external force.
Sir Isaac Newton
I often find that just getting started is the hardest part of doing something. This is especially true when the project is large or...
Notes on software...
How to get better at recursion
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For...
over a year ago
tldr; reimplement standard library functions in your favorite
language without loops.
Background
For a few years after college I spent a lot of free time doing
projects in Standard ML and Scheme. As a result I got really
comfortable doing recursion. The two big reasons for this...
Jonas Hietala
Let's build a VORON: Toolhead
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt...
a year ago
Since the last update I’ve made some good progress:
All the motors are installed
The x-axis and belt are installed
Tap is installed
The toolhead with Stealthburner + Clockwork 2 is also installed
Purple means Pretty.
I’ve run into a few problems on the way that I’ll try to...
seangoedecke.com RSS...
What can strong engineers do that weak engineers can't?
Right now people are blowing up on Twitter about whether the USA needs to import top talent from...
2 weeks ago
Right now people are blowing up on Twitter about whether the USA needs to import top talent from other countries, and if that means that…
anderegg.ca
Maybe Bluesky has “won”
November has sucked so far. One upside of the terrible nonsense is that more people are fleeing X....
a month ago
November has sucked so far. One upside of the terrible nonsense is that more people are fleeing X. Many are choosing Bluesky. I’ve seen a bunch of takes about this recently, but I keep seeing things I disagree with. I figure that’s a good enough excuse to write more about this...
Louwrentius
How to run Debian Linux on an Intel based Mac Mini
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy...
over a year ago
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy efficient. When idle, it uses around 20 watts. I'm using
one of the first Intel-based Minis with an Intel Core Duo chip, running at 1.6
Ghz.
I want to use this mini as an expensive router...
Jonas Hietala
A Simple Thought
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about...
over a year ago
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about that yesterday and I was very, very nervous. The preparations weren’t that hard, but they where very bothersome. Converting the instructions to binary/hex by hand is never nice....
Home on Erik...
Domains for sale
Contact me at mail at erik bern dot com!
over a year ago
Contact me at mail at erik bern dot com!
Willem's Blog
Backup Rotation Scheme
Learn about the rsync-backup-rotator tool that helps you automatically rotate backups using rsync,...
a year ago
Learn about the rsync-backup-rotator tool that helps you automatically rotate backups using rsync, creating and maintaining multiple recovery points from your backups.
computers are bad
2024-04-26 microsoft at work
I haven't written anything for a bit. I'm not apologizing, because y'all don't
pay me enough to...
8 months ago
I haven't written anything for a bit. I'm not apologizing, because y'all don't
pay me enough to apologize, but I do feel a little bad. Part of it is just that
I've been busy, with work and travel and events. Part of it is that I've
embarked on a couple of writing projects only to...
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...
Home on Erik...
Approximate nearest news
As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm...
over a year ago
As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm the author of a Python package called Annoy.
I've also built a benchmark suite called ann-benchmarks to compare different packages.
Home on Erik...
Why conversion matters: a toy model
There are often close relationships between top level business metrics. For instance, it's well...
over a year ago
There are often close relationships between top level business metrics. For instance, it's well known that retention has a super strong impact on the valuation of a subscription business. Or that the % of occupied seats is super important for an airline.
Good Enough
Let's talk about conversations
If you subscribe to our newsletter — which you do, right? — then you'll know that recently we've...
10 months ago
If you subscribe to our newsletter — which you do, right? — then you'll know that recently we've been thinking about conversations.
We're a small group making fun software for people, and we like to have conversations with those people; the lovely folks who like our take on...
Computer Ads from...
Comics from 1986/06 Australian Personal Computer Mag
It’s that time of the month. This time let’s look at humor from down under. These comics are from...
8 months ago
It’s that time of the month. This time let’s look at humor from down under. These comics are from the June 1986 issue of Australian Computer magazine. Enjoy! What computer ads would you like to see in the future? Please comment below. If you enjoyed it, please share it with your...
Simply Explained
How I Use Alfred to Search My Obsidian Notes Faster (with Spotlight!)
In this post, I’ll show you how I integrated Obsidian into Alfred so I can search my vault from...
a year ago
In this post, I’ll show you how I integrated Obsidian into Alfred so I can search my vault from anywhere on my Mac. I just open Alfred, type “note” followed by my query, and see my search results. Hit enter and the correct note opens in Obsidian. Easy and quick!
Posts on Made of...
6.170, CVS, and SVN
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but...
over a year ago
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but one of the most egregious, in my opinion, is that they force you to use CVS for your version control. Problem sets are distributed by the TAs importing them into your repository, and...
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...
Notes on software...
The world of PostgreSQL wire compatibility
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Willem's Blog
Outside the comfort zone: amateur acting
This month I strapped myself with sensors during a little experiment outside my comfort zone: I...
over a year ago
This month I strapped myself with sensors during a little experiment outside my comfort zone: I debuted as amateur actor!
Opsbros
WetSocks Revival
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do...
over a year ago
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do to get WetSocks Windows 98 tray weather app working again.
Posts on Made of...
Two Perspectives on the End-to-End Principle
Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read...
over a year ago
Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read numerous classic papers of systems design. I enjoyed and learned a great deal from many of these papers, but one that paper that has stuck with me in particular was Saltzer et al’s...
Christian Selig
Recreating Apple's beautiful visionOS search bar
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front...
9 months ago
Many of Apple’s own visionOS apps, like Music, Safari, and Apple TV, have a handy search bar front and center on the window so you can easily search through your content. Oddly, as of visionOS 1.1, replicating this visually as a developer using SwiftUI or UIKit is not...
Gwern.net Newsletter
October 2020 news
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization &...
over a year ago
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization & improvement.
Abort Retry Fail
The History of Windows NT 4
Taking the Server Market
a year ago
Home on Erik...
Tumblr's awesome project names
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about...
over a year ago
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about their projects named after Arrested Development topics: Gob, Parmesan, Buster, Jetpants, Oscar, George and Motherboy.
Still, the best software project name is probably still Apple's...
Odds and Ends of...
Keir Starmer needs to prepare for a world without America
Today's empires, tomorrow's ashes.
2 months ago
Today's empires, tomorrow's ashes.
Computer Ads from...
ViaGrafix Computer Training Videos
Learn...by Simply Watching TV
2 months ago
Learn...by Simply Watching TV
Jonas Hietala
My Dream Game: The Tycoon
I’ve been playing Starcraft 2 a little this christmas. It wasn’t dead serious 1v1 which really is my...
over a year ago
I’ve been playing Starcraft 2 a little this christmas. It wasn’t dead serious 1v1 which really is my favorite but I’ve played 2v2 with some friends and I actually played the campaign a bit and it was pretty fun! Usually I never play the campaign on RTS games but this one I liked....
latest projects -...
Light comms on the 003
[Hardware] Tiny terrahertz transmissions
5 months ago
[Hardware] Tiny terrahertz transmissions
Willem's Blog
One year of cycling
GPS recording an entire year of bike rides using Garmin and Strava.
over a year ago
GPS recording an entire year of bike rides using Garmin and Strava.
computers are bad
2024-09-26 the GE switched services network
We currently find ourselves in something of a series, working our way from
private lines to...
3 months ago
We currently find ourselves in something of a series, working our way from
private lines to large
private line systems like the four-wire private-line national warning
system.
Let's continue to build on the concept of the private line into large
corporate systems.
In principle, a...
Willem's Blog
Rescuing files from a broken harddisk
Yesterday I helped a young woman with her broken computer containing precious photos, could I safe...
over a year ago
Yesterday I helped a young woman with her broken computer containing precious photos, could I safe them?
Applied Cartography
44%
If you spend enough time digesting hackneyed business or self-improvement advice, you've probably...
8 months ago
If you spend enough time digesting hackneyed business or self-improvement advice, you've probably seen someone wax poetic about the following image:
This is meant to be an illustration of the power of incrementalism (often referred to as kaizen when the writer is trying to be...
Matt Blewitt
Thoughts on User Safety
We need to move beyond mere security and towards safety for our customers and our users. This is how...
over a year ago
We need to move beyond mere security and towards safety for our customers and our users. This is how we can do that.
csvbase blog
Client libraries are better when they have no API
fsspec is secretly everywhere, and boss
9 months ago
fsspec is secretly everywhere, and boss
Vitalik Buterin's...
Degen communism: the only correct political ideology
9 months ago
Home on Erik...
Delivering Music Recommendations
I've turned into a lazy bastard and I'm just posting presentations on this blog, but here's one from...
over a year ago
I've turned into a lazy bastard and I'm just posting presentations on this blog, but here's one from Rohan Singh at Spotify talking about the backend infrastructure of the Discover page.
Posts on Made of...
My Apollo Bibliography
Over the last few years — perhaps not that unusually among the nerds I know — I’ve become...
over a year ago
Over the last few years — perhaps not that unusually among the nerds I know — I’ve become increasingly fascinated by the Apollo program (and early space program more generally), and been reading my way through a growing number of books and documentaries written about it. At a...
watchTowr Labs
Pots and Pans, AKA an SSLVPN - Palo Alto PAN-OS CVE-2024-0012 and CVE-2024-9474
It'll be no surprise that 2024, 2023, 2022, and every other year of humanities' existence has been...
a month ago
It'll be no surprise that 2024, 2023, 2022, and every other year of humanities' existence has been tough for SSLVPN appliances.
Anyhow, there are new vulnerabilities (well, two of them) that are being exploited in the Palo Alto Networks firewall and SSLVPN offering, and as ever,...
Notes on software...
An intuition for distributed consensus in OLTP systems
Distributed consensus in transactional databases (e.g. etcd or
Cockroach) is a big deal these days....
11 months ago
Distributed consensus in transactional databases (e.g. etcd or
Cockroach) is a big deal these days. Most often under the hood are
variations of log-based Paxos-like algorithms such as MultiPaxos,
Viewstamped Replication, or Raft. While there are new variations that
come out each...
Vitalik Buterin's...
Why sharding is great: demystifying the technical properties
over a year ago
seangoedecke.com RSS...
MCTS and LLMs: what's the big deal?
Everyone on the internet is recently very excited about large language models and Monte Carlo tree...
6 months ago
Everyone on the internet is recently very excited about large language models and Monte Carlo tree search. Going back months, the “Q*” leak…
lcamtuf’s thing
A 15-minute intro to involute gears
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their...
a month ago
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their shape?
Notes on software...
HTML event handler attributes: down the rabbit hole
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.
Push to Prod
Comprehension of Concurrency is a Lifelong Journey
Accept that your understanding is imperfect. There is comfort in letting go.
5 months ago
Accept that your understanding is imperfect. There is comfort in letting go.
computers are bad
2023-06-12 radio on the tv
Like many people in my generation, my memories of youth are heavily defined by
cable television. I...
a year ago
Like many people in my generation, my memories of youth are heavily defined by
cable television. I was fortunate enough to have a premium cable package in
my childhood home, Comcast's early digital service based on Motorola equipment.
It included a perk that fascinated me but...
lcamtuf’s thing
Weekend projects: Sketchy Sketch
Making a nicer version of a forgotten, electronic Etch-A-Sketch toy.
4 days ago
Making a nicer version of a forgotten, electronic Etch-A-Sketch toy.
Applied Cartography
Applied Cartography × Val Town
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If...
2 months 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...
Ken Shirriff's blog
Inside an IBM/Motorola mainframe controller chip from 1981
In this article, I look inside a chip in the IBM 3274 Control Unit.1
But before I discuss the chip,...
5 months ago
In this article, I look inside a chip in the IBM 3274 Control Unit.1
But before I discuss the chip, I need to give some background on mainframes.
(I didn't completely analyze the chip, so don't expect a nice narrative or solid conclusions.)
Die photo of the Motorola/IBM SC81150...
Arduino Blog
Using Arduino UNO to sync a visual neuroscience lab
Common research methods to study the visual system in the laboratory include recording and...
2 months ago
Common research methods to study the visual system in the laboratory include recording and monitoring neural activity in the presence of sensory stimuli, to help scientists study how neurons encode and respond, for example, to specific visual inputs. One of the biggest technical...
Computer Ads from...
Gould Electronic's PowerNode 6000
The Firebreathers from Gould blast the competition into oblivion.
5 months ago
The Firebreathers from Gould blast the competition into oblivion.
computers are bad
2024-12-21 something over New Jersey
There were thousands of reports: strange aircraft, floating through the sky. A
retrospective sum of...
2 weeks ago
There were thousands of reports: strange aircraft, floating through the sky. A
retrospective sum of press accounts finds that some 100,000 people were
reported to have witnessed aerial intruders. Despite the scant details
associated with most reports, an eager press repeated the...
Willem's Blog
Linking Lemmid Store with kitchens
Designing backend servers to connect with external services is challenging as you need to take into...
over a year ago
Designing backend servers to connect with external services is challenging as you need to take into account unreliability and unpredictability.
Vitalik Buterin's...
Deeper dive on cross-L2 reading for wallets and other use cases
a year ago
Home on Erik...
Conversion rates – you are (most likely) computing them wrong
How hard can it be to compute conversion rate? Take the total number of users that converted and...
over a year ago
How hard can it be to compute conversion rate? Take the total number of users that converted and divide them with the total number of users. Done. Except… it's a lot more complicated when you have any sort of significant time lag.
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian
I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
7 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...
Louwrentius
ZFS: resilver performance of various RAID schemas
When building your own DIY home NAS, it is important that you simulate and test drive failures...
over a year ago
When building your own DIY home NAS, it is important that you simulate and test drive failures before you put your important data on it. It makes sense to know what to do in case a drive needs to be replaced. I also recommend putting a substantial amount of data on your NAS and...
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...
Christian Selig
My little Apple Vision Pro stand
I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s...
10 months ago
I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s beautiful stands that exist out there, but I was looking for something more compact and vertical so it would take up less room on my desk.
So I opened Fusion 360 (which I am still...
Louwrentius
Lion's FileVault does not support Bootcamp and external boot disks
Read the comments as they may provide useful information for your particular situation
I boot my...
over a year ago
Read the comments as they may provide useful information for your particular situation
I boot my iMac from an external FW800 SSD. I found out that it is impossible to
encrypt this disk using the new FileVault as part of Lion.
Furthermore, I also found out that if you have a disk...
Vitalik Buterin's...
How do trusted setups work?
over a year ago
Applied Cartography
Grace notes
I'm not loving Unreasonable Hospitality, but it did supply me with a phrase that I've been looking...
8 months ago
I'm not loving Unreasonable Hospitality, but it did supply me with a phrase that I've been looking for:
Eventually, that gesture became one of our steps of service. The host would ask guests, “How’d you get here tonight?” If they responded, “Oh, we drove,” he’d follow up with,...
Louwrentius
'Linux: obtain motherboard model / type and vendor'
If you want to know what motherboard is installed in a system, use the tool
dmidecode:
dmidecode |...
over a year ago
If you want to know what motherboard is installed in a system, use the tool
dmidecode:
dmidecode | grep -e "Manufacturer|Product" | head -n 4 | tail -n 2
The result might be something like:
Manufacturer: ASUSTeK Computer INC.
Product Name: P5Q-EM DO
Manufacturer: ASUSTeK Computer...
Jonas Hietala
Doing Stuff
The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left...
over a year ago
The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left the standard math course behind a bit. Actually more than a bit but hopefully I’ll correct things later.
No my life is going along just fine, it almost feels like my life is runing...
Jonas Hietala
A Christmas Game
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly...
over a year ago
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly one thing on my wishlist for this christmas for my little brother: Ticket to Ride: Nordic Countries. Guess what? I got something from my wishlist!
This was our 5th or 6th game (or...
Good Enough
TIL: Deploying a Sinatra app to Render.com
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me,...
a year ago
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me, so I figured I’d write down what worked in the end.
First, a Gemfile:
# Gemfile
source 'https://rubygems.org'
gem 'sinatra'
gem 'sinatra-contrib'
gem 'puma'
* I’m pretty sure...
Louwrentius
Linux network interface bonding / trunking or how to get beyond 1 Gb/s
This article discusses Linux bonding and how to achieve 2 Gb/s transfer speeds
with a single TCP/UDP...
over a year ago
This article discusses Linux bonding and how to achieve 2 Gb/s transfer speeds
with a single TCP/UDP connection.
UPDATE July 2011
Due to hardware problems, I was not able to achieve transfer speeds
beyond 150 MB/s. By replacing a network card with one from another
vendor (HP...
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 $$ .
Arduino Blog
Innovative new tactile sensor helps assess fine motor skills
Fine motor skills correlate strongly with cognition and the accurate assessment of an individual’s...
7 months ago
Fine motor skills correlate strongly with cognition and the accurate assessment of an individual’s motor skills can be critical in diagnosing and treating a variety of conditions. But objective evaluation has been a challenge, as suitable sensors weren’t available. To help...
Good Enough
Good Enough, A Serious Business
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you...
a year ago
Hello reader, my name is Shawn, and I'm one of the co-founders of Good Enough. I'd like to tell you a bit about how Good Enough came to be and what we plan on doing here.
Barry and I started working together again in early 2022. By “work,” I mean that I’d show up on Slack for a...
Simply Explained
Multitasking on ESP32 with Arduino and FreeRTOS
By now, it's no secret that the ESP32 is my go-to chip for making IoT devices. They're small,...
over a year ago
By now, it's no secret that the ESP32 is my go-to chip for making IoT devices. They're small, powerful, have a ton of onboard features, and they're relatively easy to program.However, when using it together with Arduino, all your code runs on a single core. That seems a bit...
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!
./techtipsy
My attempt at archiving nfscars.net
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which...
over a year ago
Background
My mother once had a laptop: the Compaq Armada 1592DT. It came with Windows ME which later got “upgraded” to Windows 98 SE
after I managed to completely screw up the OS, a whopping 96MB of RAM and a hard drive that probably wasn’t much larger
than 1-3GB. It wasn’t...
somenice
Painting of Russet Lake
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the...
4 months ago
Summer in Garibaldi Provincial Park, British Columbia, is a breathtaking experience, where the natural world is alive with vibrant colours and serene beauty. One of the most stunning scenes unfolds at Russet Lake, where the iconic Fissile Mountain is mirrored perfectly in the...
Arduino Blog
Easily build an energy meter with the Arduino Nano Matter
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded...
3 months ago
The primary appeal of microcontrollers is their versatility. They are, essentially, the embedded equivalent of computers — general purpose devices that can perform a wide range of functions. And to get the most out of a microcontroller, you’ll also want connectivity suitable for...
Applied Cartography
Why should a company?
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my...
9 months ago
For a long time, my goal with Buttondown was largely around failure avoidance: "I want to get my first paying customer so I know it's not a fake product"; "I want to hit a thousand dollars in revenue so I know it's not just friends humoring me"; "I want to make $10K/mo or else I...
Willem's Blog
Repairing a Giro AEON bicycle helmet
Try fixing your Giro bicycle helmet? I went through some trouble to do it! Read along to find out...
over a year ago
Try fixing your Giro bicycle helmet? I went through some trouble to do it! Read along to find out how.
Notes on software...
A minimal RocksDB example with Zig
I mostly programmed in Go the last few years. So every time I
wanted an embedded key-value database,...
over a year ago
I mostly programmed in Go the last few years. So every time I
wanted an embedded key-value database, I reached for Cockroach's
Pebble.
Pebble is great for Go programming but Go does not embed well into
other languages. Pebble was inspired by
RocksDB (and its...
latest projects -...
Portable Probability Panel
[Misc] Laser-cut Galton board
5 months ago
[Misc] Laser-cut Galton board
Matt Blewitt
Control Loops and Rice Cookers
Rice cookers are fascinating machines. I’ve owned one for years, as rice is a significant part of my...
over a year ago
Rice cookers are fascinating machines. I’ve owned one for years, as rice is a significant part of my regular diet, and it completely removes the stress of preparing rice. They also operate on a simple principle that can help us operate cloud infrastructure – the control loop.
Jonas Hietala
Dijkstra's Algorithm
For rust, I’m updating the documentation for the standard library and specifically with the...
over a year ago
For rust, I’m updating the documentation for the standard library and specifically with the collections. For the priority queue I had the idea to use Dijkstra’s algorithm as a fun example. That idea was well received and that example is now live.
At first I wanted to use A* to...
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...
Jonas Hietala
An Elixir based payment processor for the Coinparty hackathon
Bitcoin Unlimited is hosting a Bitcoin Cash hackathon this December and it seemed like a good...
over a year ago
Bitcoin Unlimited is hosting a Bitcoin Cash hackathon this December and it seemed like a good opportunity for me to explore how to program against Bitcoin Cash, and it gives me an excuse to build something real with Phoenix and Elixir. (While an event like this might help combat...
./techtipsy
The little Wi-Fi AP that could
I have a bad habit of testing things whenever a “good” idea pops into my head. This is a short...
over a year ago
I have a bad habit of testing things whenever a “good” idea pops into my head. This is a short overview of one of them.
The Orange Pi Zero is a SBC (single board computer) that has a slow 32-bit ARM 4 core CPU, 512MB of RAM and no display output.
It’s actually quite OK for many...
Christian Selig
Announcing Juno 2.0
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been...
6 months ago
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been enjoying Juno since its launch, as well as providing awesome feedback and input to improve it.
Today I’m releasing Juno 2.0, which incorporates a ton of that community feedback,...
Jonas Hietala
A Four-Eyed Update
Wow it’s been a while! Almost a month and a half since my last update. There I complained about my...
over a year ago
Wow it’s been a while! Almost a month and a half since my last update. There I complained about my almost constant headaches which hampered me a lot actually. Luckily now I have joined the rank of cool.
I took home three frames I think and tried them out and I settled some I...
Home on Erik...
Lessons from content marketing myself (aka blogging) for five years
I started writing this blog in late 2012, partly because I felt like it would help me improve my...
over a year ago
I started writing this blog in late 2012, partly because I felt like it would help me improve my English and my writing skills, partly because I kept having a lot of random ideas in my head and I wanted to write them down somewhere.
Home on Erik...
The software engineering rule of 3
Here's a dumb extremely accurate rule I'm postulating* for software engineering projects: *you need...
over a year ago
Here's a dumb extremely accurate rule I'm postulating* for software engineering projects: *you need at least 3 examples before you solve the right problem*.
This is what I've noticed:
Don't factor out shared code between two classes.
Jonas Hietala
Poking at Emacs
I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty...
over a year ago
I’ve been a vim vim fan for a while now and with some recent configs I’m starting to feel pretty confident and happy with it. For those who don’t know it’s basically a text editor, like notepad, but with a lot of keycommands which allows you to edit code (and text in general)...
Gwern.net Newsletter
August 2020 gwern.net newsletter
with an essay on sidenotes; links on human competence, efficient-computing/hardware-overhangs; no...
over a year ago
with an essay on sidenotes; links on human competence, efficient-computing/hardware-overhangs; no reviews.
Odds and Ends of...
We need more than Westminster reporters to understand government
Lobby correspondent hegemony is bad.
a month ago
Lobby correspondent hegemony is bad.
Jonas Hietala
Notifications with xmonad/irssi/urxvt
So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I...
over a year ago
So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I have not had notifications enabled, so I can see from the statusbar whenever someone messages me. As I’ve never been very active this has been fine, but now I figured it’s time to fix...
computers are bad
2024-03-01 listening in on the neighborhood
Last week, someone leaked a spreadsheet of SoundThinking sensors to
Wired.
You are probably asking...
10 months ago
Last week, someone leaked a spreadsheet of SoundThinking sensors to
Wired.
You are probably asking "What is SoundThinking," because the company rebranded
last year. They used to be called ShotSpotter, and their outdoor acoustic
gunfire detection system still goes by the...
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...
9 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...
Louwrentius
The Raspberry Pi 5 is no match for a tini-mini-micro PC
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable...
6 months ago
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable computer. An ideal home server. Until the Pi 4, the Pi was not that capable, and only with the relatively recent Pi 5 (fall 2023) do I feel the Pi is OK performance wise, although...
Arduino Blog
Arduino Nicla Sense Env: adding advanced environmental sensing to a broad range of applications
We’re thrilled to announce the launch of Nicla Sense Env: the latest addition to our portfolio of...
3 months ago
We’re thrilled to announce the launch of Nicla Sense Env: the latest addition to our portfolio of system-on-modules and sensor nodes, empowering innovators with the tools to unlock new possibilities. This tiny yet powerful sensor node is designed to elevate your environmental...
Notes on software...
Exploring PL/pgSQL: Strings, arrays, recursion, and parsing JSON
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a...
over a year ago
Next in exploring PL/pgSQL:
Implementing a Forth-like interpreter
PostgreSQL comes with a builtin imperative programming language called
PL/pgSQL. I used to think this language was scary because it has a bit
more adornment than your usual language does. But looking deeper,...
Jonas Hietala
Pushing toward Git
The time has come; it’s time for me to move my source out in the open for the first time.
Repository...
over a year ago
The time has come; it’s time for me to move my source out in the open for the first time.
Repository deleted, never became anything
Available on Github
It’s nothing special really, if you want take a look at the code and help me improve it.
Willem's Blog
Wearing WHOOP 4.0
Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror...
over a year ago
Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror - it's so powerful, that I don't take mine off!
watchTowr Labs
IBM QRadar - When The Attacker Controls Your Security Stack (CVE-2022-26377)
Welcome to April 2024.
A depressing year so far - we've seen critical vulnerabilities across a wide...
9 months ago
Welcome to April 2024.
A depressing year so far - we've seen critical vulnerabilities across a wide range of enterprise software stacks.
In addition, we've seen surreptitious and patient threat actors light our industry on fire with slowly introduced backdoors in the XZ...
Willem's Blog
Supernova E3 Pro 2 dynamo powered headlight
over a year ago
lcamtuf’s thing
Deep dive: the (in)stability of op-amps
A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
2 months ago
A closer look at op-amp feedback loops and the stability criteria for circuits that use them.
Notes on software...
Writing a lisp compiler from scratch in JavaScript: 3. LLVM
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
...
over a year ago
Previously in compiler basics:
1. lisp to assembly
2. user-defined functions and variables
4. LLVM conditionals and compiling fibonacci
5. LLVM system calls
6. an x86 upgrade
In this post we'll extend the
compiler to emit LLVM
IR as an option instead of...
Louwrentius
ZFS performance on HP Proliant Microserver Gen8 G1610T
I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your...
over a year ago
I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your own ZFS-based NAS. The benchmarks I've performed seem to confirm this.
The Microserver Gen8 has nice features such as:
iLO (KVM over IP with dedicated network interface)
support...
Jonas Hietala
The 4-Hour Chef: Scrambled Eggs
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to...
over a year ago
I’ve been listening to The Tim Ferriss Show a while now and he and his guests often inspire me to make changes and start doing new things. I got introduced to Josh Waitzkin’s excellent The Art of Learning and the meta skill of learning has since then fascinated me. So when I got...
Electronics etc…
ThinMachine - a $25 Thin Client MacOS Time Machine Appliance
The instructions below set up Time Machine using the Apple File Protocol
(AFP). After publishing...
a year ago
The instructions below set up Time Machine using the Apple File Protocol
(AFP). After publishing this blog post, I’ve been told that this is now
deprecated and that Samba should be used instead. I’ll update this blog
post in the near future.
Introduction
The HP t520 Thin...
Willem's Blog
The Ultimate Freedom Bike
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and...
over a year ago
With the Brompton foldable bike you find yourself a very versatile companion to go whenever and wherever you please!
Arduino Blog
A stroopwafel doneness detection device
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a...
6 months ago
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a sweet treat as well. That is a stroopwafel, a crispy little waffle-syrup sandwich that the Dutch like to rest on top of their drink so that the rising heat will soften the pastry....
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 5: The Purge
2 months ago
Applied Cartography
Migrating to Django 5
The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was...
2 months ago
The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was incentivized to do so because our search right now is quite slow, and the lowest hanging piece of fruit is to move some of the tsvector generation out of band, and I'd rather do that using...
Birchtree
I strongly recommend Portal: Revolution (members post)
In this new series, I’ll be reviewing the media I experience (I don’t like saying I “consume” media)...
4 days ago
In this new series, I’ll be reviewing the media I experience (I don’t like saying I “consume” media) in more detail than I normally do. Don’t worry, the movie reviews are staying free and on social media ✌️
Jonas Hietala
Eduroam for wicd in Linkoping's University
So we have eduroam at our University and unsurprisingly wicd is not on their official support list...
over a year ago
So we have eduroam at our University and unsurprisingly wicd is not on their official support list but with some googling the wonderful Arch Wiki had the answer. Well, almost.
Save the following as /etc/wicd/encryption/templates/ttls-80211:
name = TTLS for Wireless
author =...
Ian's Blog
Pragmatically Generating a Self-Signed Certificate and Private Key using OpenSSL
Recently I found myself needing to generate a HTTPS Server Certificate and Private Key for an iOS...
over a year ago
Recently I found myself needing to generate a HTTPS Server Certificate and Private Key for an iOS app using OpenSSL, what surprised me was the total lack of documentation for OpenSSL.
While there is plenty of function documentation, what OpenSSL really lacks is examples of how it...
Computer Ads from...
Plus Post: Rockwell AIM 65
The Company Rockwell International has been around for quite a while. Willard Rockwell started the...
8 months ago
The Company Rockwell International has been around for quite a while. Willard Rockwell started the company in 1919 to sell a newly designed truck axle bearing. Over the years, Rockwell acquired businesses in many different fields, including defense, industrial electronics,...
Notes on software...
A single-node Kubernetes cluster without virtualization or a container registry
This post is a recipe for setting up a minimal Kubernetes cluster on
Fedora without requiring...
over a year ago
This post is a recipe for setting up a minimal Kubernetes cluster on
Fedora without requiring virtualization or a container registry. These
two features make the system cloud-agnostic and the cluster entirely
self-contained. The post will end with us running a simple Flask...
Lars Lofgren
What Happened After I Outed a Reddit Mod for Affiliate Spam
I recently broke down how Reddit mods and users are abusing Google search rankings with affiliate...
4 months ago
I recently broke down how Reddit mods and users are abusing Google search rankings with affiliate spam. It’s reddit marketing gone awry. The post blew up and got a decent amount of attention. Then I got a front row seat to how deep of a spam filled porta-potty Reddit has become....
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a...
over a year ago
Next in database basics:
2. binary expressions and WHERE filters
3. indexes
4. a database/sql driver
In this series we'll write a rudimentary database from
scratch in Go. Project source code is available on
Github.
In this first post we'll build enough of a parser to...
Odds and Ends of...
Odds and Ends #46: The transformation of London's skyline, a big week for nuclear, and installing...
Plus how to avoid the road pricing landmine
a month ago
Plus how to avoid the road pricing landmine
Matt Mullenweg
Kindness and Techcrunch Disrupt
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their...
2 months ago
Back in June I recorded an episode with Jaclyn Lindsey on the Why Kindness podcast, for their awesome non-profit kindness.org. You can listen to it through Pocket Casts here: This is kind of funny because I’m obviously in the midst of the big battle with Silver Lake and WP...
Bryan Braun - Blog
Setting up your /now page with an RSS feed
I have a /now page, which I use to tell people what I’m up to these days.
I like the concept of “now...
2 months ago
I have a /now page, which I use to tell people what I’m up to these days.
I like the concept of “now pages” but I felt like it would be better if it had an RSS feed. The feed would give interested parties a way to subscribe to life changes.
The problem is that RSS feeds aren’t...
Vitalik Buterin's...
In Defense of Bitcoin Maximalism
over a year ago
Good Enough
TIL: Fixing Broken Action Text Images in Atom Feeds
For a while now we've seen that images in our Pika atom feeds were not displaying in some feed...
7 months ago
For a while now we've seen that images in our Pika atom feeds were not displaying in some feed readers.
In fact, they weren't displaying in my own feed reader, which routes through Feedly.
I was sad.
I spent a lot of time troubleshooting this.
Compared our feed with a lot of atom...
Willem's Blog
Health and fitness data
Exploring the balance between health data and intuition, this blog post delves into how personal...
12 months ago
Exploring the balance between health data and intuition, this blog post delves into how personal well-being and fitness goals shape our relationship with technology and self-awareness.
Jonas Hietala
2016 in Review
See the previous reviews.
2016 Geek Achievements
Placed 2nd in Linköping’s Regional in...
over a year ago
See the previous reviews.
2016 Geek Achievements
Placed 2nd in Linköping’s Regional in Netrunner.
Won a couple of smaller Netrunner tournaments.
Got Veronica to play Game of Thrones with us. She beat us and she loved it!
Programmed a little bit of Elixir and a tiny bit of front...
Neil Madden
Macaroon access tokens for OAuth: Part 2 – transactional auth
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a...
over a year ago
In part 1, I showed how Macaroon access tokens in ForgeRock Access Management 7.0 can be used as a lightweight and easy-to-deploy alternative to proof of possession (PoP) schemes for securing tokens in browser-based apps. The same techniques can be adapted to secure tokens in...
Old Vintage...
When the Power Macintosh ran NetWare (featuring Wormhole and Cyberpunk)
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple...
a year ago
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple developer who was part of the NetWare team. Thank you!
the network operating system of the 1990s. Nothing was quite like it. Until Windows NT muscled in on its action near the end of the...
Home on Erik...
In defense of false positives (why you can't fail with A/B tests)
Many years ago, I used to think that A/B tests were foolproof and all you need to do is compare the...
over a year ago
Many years ago, I used to think that A/B tests were foolproof and all you need to do is compare the metrics for the two groups. The group with the highest conversion rate wins, right?
Gwern.net Newsletter
September 2020 News
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no...
over a year ago
September 2020 gwern.net newsletter with links on DRL and AI scaling, psychiatric disorders; no reviews.
Ken Shirriff's blog
Intel's $475 million error: the silicon behind the Pentium division bug
In 1993, Intel released the high-performance Pentium processor, the start of the long-running...
a week ago
In 1993, Intel released the high-performance Pentium processor, the start of the long-running Pentium line.
The Pentium had many improvements over the previous processor, the Intel 486, including a faster floating-point division algorithm.
A year later, Professor Nicely, a number...
Vitalik Buterin's...
A Prehistory of the Ethereum Protocol
over a year ago
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...
computers are bad
2023-03-24 docker
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a...
a year ago
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a lot of advantages. But I am supposedly a DevOps
professional, and so I will occasionally indulge in giving DevOps advice... or
at least opinions, which are sort of like advice but...
Simply Explained
How I Built an NFC Movie Library for my Kids
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to...
a year ago
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to today, and my children's movie collection is vastly different. It's completely digital and dispersed across services. I wanted to recreate the tangible magic of my childhood for them.
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...
3 weeks 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!
Arduino Blog
7 powerful ways to integrate Collaborative Coding into education with the Arduino Cloud
Collaborative coding in education can be a game-changer for students, providing them with real-world...
2 months ago
Collaborative coding in education can be a game-changer for students, providing them with real-world skills in communication, teamwork, and problem-solving. With the new collaborating coding feature of the Arduino Cloud, students can collaborate in real time on coding projects,...
Jonas Hietala
ghc 8.8.3 cannot find cabal 3.0.0.0 packages
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system...
over a year ago
I’ve been using cabal to manage my Haskell dependencies for years, but when I last updated my system it suddenly stopped working. I installed my dependencies with cabal install xmonad, and checked that it’s installed under ~/.cabal:
$ ls .cabal/bin/
xmonad@
But still when I...
Simply Explained
Year in review: 2022
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my...
over a year ago
Every new year I reflect on the previous year and set new goals. I'm focusing primarily on my YouTube channel and newsletter, but there are personal reflections in here as well. Last year was an off year for me, and I'm gearing up to make up for lost time in 2023.
Push to Prod
Best Questions and Answers to the “Terrifying Netflix Concurrency Bug” Post
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so...
a month ago
Why couldn't we roll back? Weren't we concerned about costs? Why is operating Netflix so complicated? Plus many others.
computers are bad
2023-06-02 the reinvention of owens lake
Programming note: In an effort to introduce an exciting new social aspect to
Computers Are Bad (a...
a year ago
Programming note: In an effort to introduce an exciting new social aspect to
Computers Are Bad (a functional necessity to appease early-stage investor
demands for "engagement")¸ I am launching a Matrix room for CAB readers.
You can join it! Do whatever you do to join rooms in...
Computer Ads from...
Mark Williams' C Programming System
What C did for Programming Mark Williams has done for C Programming
4 months ago
What C did for Programming Mark Williams has done for C Programming
Notes on software...
dsq: Commandline tool for running SQL queries against JSON, CSV, Excel, Parquet, and more.
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.
Louwrentius
How to setup a local or private Ubuntu Mirror
Preface
In this article I provide instructions on how to setup a local Ubuntu mirror using...
a year ago
Preface
In this article I provide instructions on how to setup a local Ubuntu mirror using debmirror. To set expectations: the mirror will work as intended and distribute packages and updates, but a do-release upgrade from one major version of Ubuntu to the next won't...
GitButler
GitButler for Windows
The GitButler client is now available natively on Windows.
9 months ago
The GitButler client is now available natively on Windows.
Arduino Blog
The end of Mbed marks a new beginning for Arduino
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially...
5 months ago
As you might have heard, on July 9th, Arm announced that the Mbed platform and OS are officially destined to reach end of life in July 2026, and therefore will no longer be maintained. The news has sent ripples through the embedded development community, particularly affecting...
Jonas Hietala
Why Cryptocurrencies? is now available in print
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve...
over a year ago
Today is a big milestone for me, as this marks a big milestone in the biggest personal project I’ve undertaken.
My book ‘Why Cryptocurrencies?’ is released in print today! It’s my attempt to explain what cryptocurrencies are and what problems they solve, in a simple and...
Jonas Hietala
rustc: error while loading shared libraries: librustc_driver
I had installed and used rust already but today I fired it up and received:
rustc...
over a year ago
I had installed and used rust already but today I fired it up and received:
rustc --version
rustc: error while loading shared libraries: librustc_driver-7e44814b.so: cannot open shared object file: No such file or directory
I’ve seen this before… I thought modifying...
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...
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...
latest projects -...
Hand-cranked Flux Capacitor
[Concept] Control the flow of time
a year ago
[Concept] Control the flow of time
Arduino Blog
This perplexing robotic performer operates under the control of three different Arduino boards
Every decade or two, humanity seems to develop a renewed interest in humanoid robots and their...
3 months ago
Every decade or two, humanity seems to develop a renewed interest in humanoid robots and their potential within our world. Because the practical applications are actually pretty limited (given the high cost), we inevitably begin to consider how those robots might function as...
Louwrentius
Cryptocurrencies are detrimental to society
Want to listen to this article?
audio element.
Introduction
How would you explain the inner...
over a year ago
Want to listen to this article?
audio element.
Introduction
How would you explain the inner workings of bitcoin to a person in simple, understandable terms?
source
This explanation seems perfect to me because it illustrates some seriously problematic aspects of...
Jonas Hietala
Rewriting my blog in Rust for fun and profit
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think...
over a year ago
Background
I’ve used Hakyll as my static site generator for around 9 years now. Before that I think I used Jekyll and also more dynamic pages with Mojolicious in Perl and Kohana in PHP, but I can’t be completely sure as the git history doesn’t go back that far.
But all good...
Jonas Hietala
Good and Bad Programmers
Every now and day blog posts about what it takes to be a good programmer or how you figure out if...
over a year ago
Every now and day blog posts about what it takes to be a good programmer or how you figure out if someone is a bad programmer arrives. There’s always talk about how you find the good programmers in interviews and the topic is always hot in schools and universities.
Today I read...
Home on Erik...
coin2dice
Here's a problem that I used to give to candidates. I stopped using it seriously a long time ago...
over a year ago
Here's a problem that I used to give to candidates. I stopped using it seriously a long time ago since I don't believe in puzzles, but I think it's kind of fun.
Let's say you have a function that simulates a random coin flip.
Willem's Blog
Whoop strap review: 24/7 wearable sensor
over a year ago
Jonas Hietala
Motivation is Valuable
It’s funny how motivation can play such a huge role with my productivity. I’m currently having two...
over a year ago
It’s funny how motivation can play such a huge role with my productivity. I’m currently having two math courses; one mandatory about analysis in multiple variables and vector analysis and one voluntary about advanced linear algebra. I don’t like the analysis course, didn’t like...
seangoedecke.com RSS...
How I ship projects at big tech companies
I have shipped a lot of different projects over the last ~10 years in tech. I often get tapped to...
2 months ago
I have shipped a lot of different projects over the last ~10 years in tech. I often get tapped to lead new ones when it’s important to get…
Jonas Hietala
The first (worst) post
Well, here it is: The opening post. What will come here? Here’s where I’ll outline what the blog...
over a year ago
Well, here it is: The opening post. What will come here? Here’s where I’ll outline what the blog will be about and maybe, if I’m dedicated, it won’t die before Christmas you think.
And sure, you’re right. I will run away to the corner in about two and a half months crying I never...
./techtipsy
DIY cloud gaming: NVIDIA and Moonlight
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming...
over a year ago
As you might have read from my previous post on this topic, I
have a pretty neat “cloud” gaming setup running. I have one powerful desktop PC, one virtual machine with a GPU attached
to it, and client machines that can be used to stream games from. To keep things simple (and...
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...
lcamtuf’s thing
RAM: the forgotten history
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working...
2 months ago
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working memory.
seangoedecke.com RSS...
Ratchet effects determine engineer reputation at large companies
How do engineers become higher-status or lower-status at large tech companies? In other words, what...
5 days ago
How do engineers become higher-status or lower-status at large tech companies? In other words, what determines who gets promoted and who…
./techtipsy
Disabling the crappy Broadcom Bluetooth adapter in your ThinkPad T430 running Linux
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a...
over a year ago
You’ve disabled the boneheaded Lenovo WiFi adapter whitelist using a tool like
1vyrain, installed a better adapter like the
Intel Dual Band Wireless-AC 7260,
and found that Bluetooth is not working as intended on your ThinkPad T430
running Linux?
Here’s a guide on what you can...
Home on Erik...
More MCMC – Analyzing a small dataset with 1-5 ratings
I've been obsessed with how to iterate quickly based on small scale feedback lately. One awesome...
over a year ago
I've been obsessed with how to iterate quickly based on small scale feedback lately. One awesome website I encountered is Usability Hub which lets you run 5 second tests. Users see your site for 5 seconds and you can ask them free-form questions afterwards.
Birchtree
The best app for gaming on the Vision Pro will soon be Safari
Andrew Fear writing for the official NVIDIA blog: PC Gaming in the Cloud Goes Everywhere With New...
3 days ago
Andrew Fear writing for the official NVIDIA blog: PC Gaming in the Cloud Goes Everywhere With New Devices and AAA Games on GeForce NOW
Get immersed in a new dimension of big-screen gaming as GeForce NOW brings AAA titles to life on Apple Vision Pro spatial computers, Meta Quest 3
Ken Shirriff's blog
Inside the tiny chip that powers Montreal subway tickets
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it...
6 months ago
To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens.
The ticket works through a system called NFC, but what's happening internally?
How does the ticket work without a battery? How does it communicate with the turnstile?
And how can it...
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
Good Enough
TIL: Blocking Password App Autocomplete on Form Fields
I wanted to disable password managers, particularly 1Password, from interacting with a username...
a year ago
I wanted to disable password managers, particularly 1Password, from interacting with a username field in Contact Me. It was pretty simple in the end:
<%= form.text_field :username, "data-lpignore": true, "data-1p-ignore": true %>
Reference: 1Password, Lastpass.
Arduino Blog
Improve laser engraving speeds with an Arduino-controlled turntable
Engraving items with a laser-based system at home is amazingly convenient for one-off parts, but...
6 months ago
Engraving items with a laser-based system at home is amazingly convenient for one-off parts, but what happens when the production volume needs to increase? For element14 Presents host Clem Mayer, this usually meant preparing many uniform pieces of engraving stock, opening the...
Lighthouse Blog
Updates November 24: Content parsing improvements
a year ago
Applied Cartography
Content debt
There’s a nascent trend of releasing ostensibly-private material (changelogs, public wikis,...
6 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...
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 