Good Enough
Season 1, Issue 1: The Loneliest Number
1. Confirmed Positive
After two years of running from reality, it has finally happened for my...
over a year ago
1. Confirmed Positive
After two years of running from reality, it has finally happened for my family. I have tested positive for SARS Coronavirus-2, the virus that causes COVID-19. For this honor, I would like to thank our society’s collective tiring of virus mitigation. It truly...
Jonas Hietala
February gets Themed: Rejection
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t...
over a year ago
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t follow suite! With valentine coming up I might just have found a pretty nice idea, just now, writing this…
Booyah!!
Jonas Hietala
I Made It!
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a...
over a year ago
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a Ludum Dare! Not an easy feat and yet there are tons of games that look absolutely wonderful. I’m not there yet but now I have at least gotten back into game making again, long...
Notes on software...
Make small changes and solve the problems you have
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that...
over a year ago
Two frustrating things that can happen in an organization are 1) big
changes and 2) changes that aren’t clearly associated with a known
problem. It’s even worse in that order.
These situations tend to happen when a problem remain unaddressed for
too long. These situations tend to...
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...
Applied Cartography
How shadcn/ui examples work
I’m increasingly convinced that for developer-first tools, a really good docs experience is a...
7 months ago
I’m increasingly convinced that for developer-first tools, a really good docs experience is a durable, non-trivial advantage.
Part of this thesis is that Really Good Docs Experiences, in addition to having great information architecture and strong writing/prose, should be thought...
Posts on Made of...
todo.pl ratmenu
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t...
over a year ago
broder has been hacking on some better quicksilver integration for Hiveminder using todo.pl.
I don’t use a mac, but I don’t see why linux users shouldn’t get fun toys to. So I hacked up the following two-liner that uses todo.pl and ratmenu to pop up a list of tasks, and mark one...
Willem's Blog
Creating a minimal road bike
I wondered how hard it would be to make a bike from spare parts I had in my garage
over a year ago
I wondered how hard it would be to make a bike from spare parts I had in my garage
Arduino Blog
Transform trash into treasure with the DIY Bottle Plotter
Manufacturers put a lot of effort into their packaging (there is an entire engineering discipline...
3 months ago
Manufacturers put a lot of effort into their packaging (there is an entire engineering discipline just for that) and some of it can be quite beautiful. But it usually still ends up in the landfill or, at best, in a recycling center. However, if you’re the type of person who can...
Good Enough
Season 3, Issue 2: Britney Coltrane
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I...
a year ago
1. I ❤️HR
The past two weeks Barry and Lettini have been building our next little project, and I tried to deal with the company-side of work: setting up payroll, health insurance, and making sure we’re compliant (hello, bureaucracy!). Back in the day when Danny and I started...
Jonas Hietala
An Epic Start
Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and...
over a year ago
Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and went to the bathroom. After I was done, still pretty tired, I made a big mistake. I checked the current theme for Ludum Dare 29: Beneath the Surface and guess what? Now I wasn’t tired...
Arduino Blog
Arduino’s Alvik Robot shortlisted for the Bett Awards 2025 in the AV, VR/AR, Robotics, and Digital...
We’re thrilled to announce that Arduino Education has been shortlisted for the Bett Awards 2025,...
a month ago
We’re thrilled to announce that Arduino Education has been shortlisted for the Bett Awards 2025, this time in the AV, VR/AR, Robotics, or Digital Device category with our Alvik robot! This recognition highlights our dedication to innovation, inclusivity, and the advancement of...
Applied Cartography
Hypermodern Django
I've been on the hunt for a new way to dogfood Buttondown for the past month or so, and I've finally...
a week ago
I've been on the hunt for a new way to dogfood Buttondown for the past month or so, and I've finally found it: Hypermodern Django.
At this point, all of my/our usages of Buttondown for Buttondown don't involve archives: we're using it headlessly, with RSS-to-email and APIs...
Home on Erik...
What can startups learn from Koch Industries?
I recently finished the excellent book Kochland. This isn't my first interest in Koch—I read The...
over a year ago
I recently finished the excellent book Kochland. This isn't my first interest in Koch—I read The Science of Success by Charles Koch himself a couple of years ago.
Charles Koch inherited a tiny company in 1967 and turned it into one of the world's largest ones.
./techtipsy
Running my ThinkPad T430 with an eGPU in 2024
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I...
4 months ago
I probably shouldn’t have written down my notes on the eGPU setup I had years ago.
I’d be lying if I wasn’t considering remaking this setup with everything I’ve learned 6 years later.
Oops.
I got access to an allegedly-faulty AMD Radeon RX 480 and an NVIDIA GTX 1650 for free...
computers are bad
2024-10-26 buy payphones and retire
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress...
a month ago
PAYPHONES at High Volume
Existing sites! Earn BIG $$. Money Back Guarantee!
Dropshipping AliExpress watches, AI-generated SEO spam websites... marginally
legal and ethical passive income schemes, that serve to generate that income
mostly for their promoters, can feel like a...
Jonas Hietala
Ludum Dare 22 Timelapse
Here’s the timelapse for my entry to Ludum Dare 22,...
over a year ago
Here’s the timelapse for my entry to Ludum Dare 22, Sat-E.
https://www.youtube.com/watch?v=eoKDyhxCVm0
This time I managed to record one screen every minute, which is very suboptimal to say the least but I slowed it down a bit so you can at least see something being done there.
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....
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....
10 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...
Arduino Blog
Kick off the Monaco Grand Prix weekend with these Formula 1-inspired Arduino projects
The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the...
7 months ago
The Monaco Grand Prix is just days away and will likely be one of the most exciting races of the season. While most fans can’t participate directly — except as spectators — they can celebrate their passion through DIY projects. That’s why we’ve scoured the community to find the...
Louwrentius
Visual representation of hard drives and their temperature
If you build a NAS with many drives, it may be of interest to you which
drives get hot and where...
over a year ago
If you build a NAS with many drives, it may be of interest to you which
drives get hot and where they are located in the chassis. My Norco 4020 case
has twenty drives in RAID 6, plus two operating system drives in RAID 1. I
wrote a script that shows me the temperature of each...
Posts on Made of...
New reptyr feature: TTY-stealing
Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally...
over a year ago
Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally didn’t know how to solve within the reptyr model. Most annoyingly, reptyr fundamentally only worked on single processes, and could not attach processes with children, making it...
Vitalik Buterin's...
[Mirror] Zk-SNARKs: Under the Hood
over a year ago
Louwrentius
Linux: script that creates table of network interface properties
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an...
over a year ago
My server has 5 network interfaces and I wanted a quick overview of some properties. There may be an existing linux command for this but I couldn't find it so I quickly wrote my
own script (download).
This is the output:
The only requirement for this script is that you have...
Jonas Hietala
Back to lazy.nvim
Around a month ago I had an affair with rocks.nvim.
It was fun, but I’m back together with lazy.nvim...
6 months ago
Around a month ago I had an affair with rocks.nvim.
It was fun, but I’m back together with lazy.nvim again.
This is a short post to explain why—at this point in time—the grass wasn’t greener on the other side.
Problems with rocks.nvim
Too many weird issues.
I had quite a few...
Willem's Blog
Computer says no
The weather app indicating rain caused an empty bike lane this morning, making me wonder about the...
over a year ago
The weather app indicating rain caused an empty bike lane this morning, making me wonder about the power we put into these things.
Willem's Blog
Some thoughts on touch screen user interface design
I am working on a new app involving personal health that requires a natural intuitive interface that...
over a year ago
I am working on a new app involving personal health that requires a natural intuitive interface that works well on touch screens. It's good to check out some best practices for touch UI design
./techtipsy
How to build a fleet of networked offsite backups using Linux, WireGuard and rsync
Just like most people out there, I have some files that are irreplaceable, such as cat pictures.
At...
a week ago
Just like most people out there, I have some files that are irreplaceable, such as cat pictures.
At one point I had a few single-board computers sitting idle, namely
the Orange Pi Zero and
the LattePanda V1, and a few
1TB SSD-s.
I hate idle hardware, so I did the most sensible...
computers are bad
2023-10-15 go.com
Correction: a technical defect in my Enterprise Content Management System
resulted in the email...
a year ago
Correction: a technical defect in my Enterprise Content Management System
resulted in the email having a subject that made it sound like this post would
be about the classic strategy game Go. It is actually about a failed website.
I regret the error; the responsible people have...
Posts on Made of...
Navigating the Linux Kernel
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way...
over a year ago
In response to my query last time, ezyang asked for any tips or tricks I have for finding my way around the Linux kernel. I’m not sure I have much in the way of systematic advice for tracking down the answers to questions about the Linux kernel, but thinking about what I do when...
Louwrentius
1.0 GB/s using Linux software RAID
I filled the Norco case with hardware. It is now up and running, based on
Debian Linux (Lenny).
I...
over a year ago
I filled the Norco case with hardware. It is now up and running, based on
Debian Linux (Lenny).
I immediately performed some initial tests with software RAID 0. The results
are just astounding.
debian:~# dd if=/dev/md0 of=/dev/null bs=1M count=50000
50000+0 records in
50000+0...
Louwrentius
RAID 5 is perfectly fine for home usage
RAID 5 gets a lot of flak these days. You either run RAID 1, RAID 10 or you use RAID 6, but if you...
over a year ago
RAID 5 gets a lot of flak these days. You either run RAID 1, RAID 10 or you use RAID 6, but if you run RAID 5 you're told that you are a crazy person.
Using RAID 5 is portrayed as an unreasonable risk to the availability of your data. It is suggested that it is likely that you...
Opsbros
The Bindicator
So I made this project for my dad for Fathers Day a couple of years ago, and thought i'd share it....
over a year ago
So I made this project for my dad for Fathers Day a couple of years ago, and thought i'd share it. The one shown is the Rev-1 design which is far from perfect, in fact it has several major issues I will discuss below, however it definitely works,
Matt Mullenweg
Automattic Alignment
Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine...
2 months ago
Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine filed a meritless lawsuit and Automattic responded, and there’s been a hurricane of public activity and press. Inside of Automattic, there’s been a parallel debate and process....
Arduino Blog
Circuit Canvas can help you quickly create illustrated wiring diagrams
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit...
5 months ago
Good documentation is extremely useful when conceiving, building, or sharing electronic circuit designs, but traditional schematics and technical drawings are difficult for non-professionals to interpret and create. Makers can benefit from intuitive illustrations that look good...
Louwrentius
Achieving 2.3 GB/s with 16 x 4 TB drives
I'm in the process of building a new storage server to replace my 18 TB NAS.
The server is almost...
over a year ago
I'm in the process of building a new storage server to replace my 18 TB NAS.
The server is almost finished, it's now down to adding disk drives. I'm using the HGST 4 TB 7200 RPM drive for this build (SKU 0S03356) (review).
I have not bought all drives at once, but slowly adding...
Odds and Ends of...
Important information if you used my Bluesky MP follows bot
Please read this immediately.
2 weeks ago
Please read this immediately.
./techtipsy
This site will be offline on 2022-08-17 between 18:00-19:00 EEST
There really isn’t much to say here, nor is there a rational reason behind this.
I just see it as an...
over a year ago
There really isn’t much to say here, nor is there a rational reason behind this.
I just see it as an opportunity to send a signal and test the capabilities of
my UPS.
I’ve prepared for this moment with my self-hosting setup, let’s see how well it
holds up. Hopefully better than...
Applied Cartography
My approach to GTD and PKM
One pernicious thing with writing about productivity and knowledge systems: you only change systems...
2 months ago
One pernicious thing with writing about productivity and knowledge systems: you only change systems that aren’t working, and you tend to write about things during times of change. So most writing about productivity systems stem from people whose systems have failed them.
It is...
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...
Applied Cartography
Applied Cartography × Val Town
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If...
a month ago
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If you haven't used Val, well, watch the stream — think live, zero-deploy code snippets that can be arbitrarily extended and executed.)
Reflecting on the experience, the most exciting...
Neil Madden
Why the OAuth mTLS spec is more interesting than you might think
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the...
over a year ago
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the episode with Colm MacCárthaigh about a bunch of topics around TLS. It’s a great episode that touches a lot of subjects I’m interested in, so go ahead and listen to it if you...
Posts on Made of...
Followup to "A Very Subtle Bug"
After my previous post got posted to reddit, there was a bunch of interesting discussion there about...
over a year ago
After my previous post got posted to reddit, there was a bunch of interesting discussion there about some details I’d handwaved over. This is a quick followup on some the investigation that various people carried out, and the conclusions they reached.
In the reddit thread,...
computers are bad
2023-08-19 meanwhile elsewhere
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard...
a year ago
I had meant to write something today, but I'm just getting over a case of the
COVID and had a hard time getting to it. Instead I did the yard work, edited
and uploaded a YouTube video, and then spewed out a Cohost thread as long as a
blog post. So in lieu of your regularly...
Louwrentius
My Ceph test cluster based on Raspberry Pi's and HP MicroServers
Introduction
To learn more about Ceph, I've build myself a Ceph Cluster based on actual hardware. In...
over a year ago
Introduction
To learn more about Ceph, I've build myself a Ceph Cluster based on actual hardware. In this blogpost I'll discus the cluster in more detail and I've also included (fio) benchmark results.
This is my test Ceph cluster:
The cluster consists of the following...
Willem's Blog
Google Analytics vs AWStats
Comparing Google Analytics with AWStats to find out where they differ and which is better.
over a year ago
Comparing Google Analytics with AWStats to find out where they differ and which is better.
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...
detreville
This is "detreville"
It's my name, and the name of my Substack too. That's one less thing for everyone to remember.
a year ago
It's my name, and the name of my Substack too. That's one less thing for everyone to remember.
Arduino Blog
Meet Real Robot One V2: A mini DIY industrial robot arm
Started in 2022 as an exploration of what’s possible in the field of DIY robotics, Pavel Surynek’s...
5 months ago
Started in 2022 as an exploration of what’s possible in the field of DIY robotics, Pavel Surynek’s Real Robot One (RR1) project is a fully-featured 6+1-axis robot arm based on 3D-printed parts and widely available electronics. The initial release was constructed with PETG...
Jonas Hietala
Writing Home Assistant automations using Genservers in Elixir
I’ve been a fan of Home Assistant a while now;
it’s a great platform for home automation with its...
2 months ago
I’ve been a fan of Home Assistant a while now;
it’s a great platform for home automation with its beginner friendly and feature rich UI,
support for a ton of different devices and integrations,
and there’s a bunch of ways to create automations.
But there’s no engine for writing...
Avestura's Blog
What is the type of Type?
Should type of `Type` be also `Type`? Or is there an alternative?
over a year ago
Should type of `Type` be also `Type`? Or is there an alternative?
Vitalik Buterin's...
A Philosophy of Blockchain Validation
over a year ago
Willem's Blog
Helping people with free software
This week I helped a man with repairing and reinstalling his computer with Debian GNU/Linux.
over a year ago
This week I helped a man with repairing and reinstalling his computer with Debian GNU/Linux.
Louwrentius
Cannot access Windows guest within VMware Fusion when running vsphere client
Currently, I am running VMware ESXi 4.1 on a test system. To manage ESXi, you need the VSphere...
over a year ago
Currently, I am running VMware ESXi 4.1 on a test system. To manage ESXi, you need the VSphere client, which is only available for the Windows platform. Therefore, I run VMware Fusion on my Mac to be able to access VSphere and manage my ESXi host.
The trouble is that both ESXi...
Matt Blewitt
Leadership Power Tools: SQL and Statistics
A common pattern I’ve seen over the years have been folks in engineering leadership positions that...
2 weeks ago
A common pattern I’ve seen over the years have been folks in engineering leadership positions that are not super comfortable with extracting and interpreting data from stores, be it databases, CSV files in an object store, or even just a spreadsheet. We’re going to cover SQL &...
Applied Cartography
Use Rails
I have a good number of people ask me what software stack they should use. I always have a two-part...
7 months ago
I have a good number of people ask me what software stack they should use. I always have a two-part answer:
Use what you're familiar with. If there's something that you've spent a good amount of time using, stick with that one.
Rails. People are usually surprised when I say this...
Arduino Blog
Why is STEAM education important for kids? 6 activity tips
School’s out for summer – at least for most of us. While the majority of children (and teachers!)...
5 months ago
School’s out for summer – at least for most of us. While the majority of children (and teachers!) will probably be breathing a huge sigh of relief, parents face a new challenge: how to keep kids engaged during the long break. Of course, downtime is important, but there are also...
Jonas Hietala
March Theme: 10 seconds
Well well here’s something interesting. The Experimental Gameplay Project has given us a really...
over a year ago
Well well here’s something interesting. The Experimental Gameplay Project has given us a really interesting thing to focus on: Time. Like Braid, it’s time for us to make something interesting with time itself. 10 seconds is the constraint and that’s not a lot, but perhaps enough?
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...
Ken Shirriff's blog
Reverse-engineering an analog Bendix air data computer: part 4, the Mach section
MathJax = {
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10 months ago
MathJax = {
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In the 1950s, many fighter...
Old Vintage...
An Apple district manager's Macintosh Portable in 1989-91 (featuring GEIS AppleLink and a look at...
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than...
9 months ago
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than what it has on it: a beta version of System 6.0.6 (the doomed release that Apple pulled due to bugs), Apple sales databases, two online services — the maligned Mac Prodigy client,...
./techtipsy
Things I've learned during my self-hosting adventure
This is a list of lessons that I’ve learned while playing around with my computer setup during the...
over a year ago
This is a list of lessons that I’ve learned while playing around with my computer setup during the last 6-7 years or so.
USB connected storage is a bad idea when you are using BTRFS.
USB connected storage is still a bad idea when you are using ZFS, but it is at least much more...
Applied Cartography
October, 2024
Hello! Lots of writing in October (what early parenthood takes away in terms of deep flow, it gives...
a month ago
Hello! Lots of writing in October (what early parenthood takes away in terms of deep flow, it gives back in terms of twenty-minute pockets of time and thought):
On the content front, I wrote about Monster Sanctuary (a delightful JRPG), The Anderson Tapes (a solid late-period Sean...
seangoedecke.com RSS...
What kind of work I want
This article is to help recruiters, hiring managers and myself have a better idea of the kind of...
over a year ago
This article is to help recruiters, hiring managers and myself have a better idea of the kind of places I’d like to work. The short version…
Old Vintage...
Reversing the Web-@nywhere Watch: browse fragments of the Web on your wrist
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection...
11 months ago
In the halcyon days of analogue modems and POTS dialup Internet, when the only wireless connection in your house was between the cordless phone and the wall, anything having to do with the Web was best consumed in small bites (pun intended). If you wanted to take data with you,...
Good Enough
You Complete Me
When Good Enough was in its infancy as a truly American LLC (formed in Delaware and representing one...
2 weeks ago
When Good Enough was in its infancy as a truly American LLC (formed in Delaware and representing one or two people who were
only semi-serious about a business), it was fun to play around with building websites.
Shawn and I were truly just playing and exploring, more than anything...
seangoedecke.com RSS...
Acing the coding challenge
How do you write a successful coding challenge? Unlike some nightmare whiteboard interview...
over a year ago
How do you write a successful coding challenge? Unlike some nightmare whiteboard interview scenarios, typically a coding challenge is not a…
Arduino Blog
Harness the power and connectivity of your Arduino UNO R4 WiFi with this IoT lamp
It can be tough to get started with building an Internet of Things (IoT) project from the ground-up,...
7 months ago
It can be tough to get started with building an Internet of Things (IoT) project from the ground-up, as getting connected, serving a webpage, and managing other devices can all be a challenge to a beginner. This is why the YouTuber known as “Mario’s Ideas” made an end-to-end...
GitButler
Git Merge 2024
GitButler is organizing the 2024 Git Merge conference, Sep 19/20 in Berlin!
5 months ago
GitButler is organizing the 2024 Git Merge conference, Sep 19/20 in Berlin!
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 5: The Purge
a month ago
Vitalik Buterin's...
Layer 1 Should Be Innovative in the Short Term but Less in the Long Term
over a year ago
heavymeta.org
CrowdStrike's Impact on Aviation
Just after midnight Eastern Time on July 19, 2024, the enterprise cybersecurity
company CrowdStrike...
4 months ago
Just after midnight Eastern Time on July 19, 2024, the enterprise cybersecurity
company CrowdStrike YOLOed a software update to millions of Windows machines. Or
as they put it:
On July 19, 2024 at 04:09 UTC, as part of ongoing operations, CrowdStrike
released a sensor...
Jonas Hietala
Before the Games: The Site
I’ve got some things I want to do before I start with my next game and they’re all about improving...
over a year ago
I’ve got some things I want to do before I start with my next game and they’re all about improving the site. The last week or so has been extremely productive with me throwing out a lot of wasted code, speeding up the site and adding/removing features and I want to continue with...
Notes on software...
Windows
It has been six years since I last used Windows for any remotely
serious software development. I've...
over a year ago
It has been six years since I last used Windows for any remotely
serious software development. I've used Ubuntu, Arch, or FreeBSD
since. But eventually I spent so much time working around common
workplace tasks that I decided to put Windows 10 Pro on my work
laptop.
Windows...
Construction Physics
Will the China Cycle Come for Airbus and Boeing?
Noah Smith, author of the economics Substack Noahpinion, often refers to a common trajectory in...
2 months ago
Noah Smith, author of the economics Substack Noahpinion, often refers to a common trajectory in Chinese manufacturing as the “China Cycle”:
Jonas Hietala
How I made a kick-ass cover for my self-published book
If you want to publish a book, one of the most important things to consider is the cover—after all,...
over a year ago
If you want to publish a book, one of the most important things to consider is the cover—after all, we judge the book by the cover.
And I did it the universally recommended way:
I hired a designer.
Simple, right?
But real talk; it’s not exactly that simple and I did a bunch of...
Arduino Blog
This unique wall sconce welcomes you home with warm light
Have you ever walked through your front door after a long day of work and realized that your home...
a week ago
Have you ever walked through your front door after a long day of work and realized that your home just isn’t as inviting as it seems like it should be? While it may not work miracles, some nice and welcoming lighting can make a big difference. That’s why Lauren Palazzi made this...
watchTowr Labs -...
Auth. Bypass In (Un)Limited Scenarios - Progress MOVEit Transfer (CVE-2024-5806)
In the early hours of a day in a month in 2024, watchTowr Labs was sent a chat log:
13:37 -!-...
6 months ago
In the early hours of a day in a month in 2024, watchTowr Labs was sent a chat log:
13:37 -!- dav1d_bl41ne [def_not_phalanx@kernel.org] has joined #!hack (irc.efnet.nl)
13:37 -!- dav1d_bl41ne changed the topic of #!hack to: mag1c sh0w
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...
Old Vintage...
Refurb weekend: Canon Cat
It's the Memorial Day holiday weekend and it's time for a little deferred maintenance, especially on...
6 months ago
It's the Memorial Day holiday weekend and it's time for a little deferred maintenance, especially on those machines I intend to work on more in the near future. So we'll start with one that's widely considered to be a remarkable cul-de-sac in computing history: the Canon...
Electronics etc…
Making Screenshots of Test Equipment Old and New
Introduction
Screenshot Capturing Interfaces
Hardware and Software Tools
Capturing GPIB data in Talk...
3 weeks ago
Introduction
Screenshot Capturing Interfaces
Hardware and Software Tools
Capturing GPIB data in Talk Only mode
TDS 540 Oscilloscope - GPIB - PCL Output
HP 54542A Oscilloscope - Parallel Port - PCL or HPGL Output
HP Inifinium 54825A Oscilloscope - Parallel Port - Encapsulated...
Willem's Blog
Flying in a C47-A (DC-3) classic plane
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received,...
over a year ago
Flying in a C47-A Skytrain over The Netherlands is one magnificent birthday gift I received, experiencing aviation history unlike anything else!
./techtipsy
techtipsy, now hosted on k-space!
This site is now hosted on infrastructure provided by k-space, a friendly hackerspace in Tallinn,...
a year ago
This site is now hosted on infrastructure provided by k-space, a friendly hackerspace in Tallinn, Estonia.
If you’ve been reading any of my previous posts, you might be wondering why I made that move, especially since I was
quite proud of hosting my website over a residential...
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....
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...
Arduino Blog
A stroopwafel doneness detection device
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a...
5 months ago
If you’re lucky enough to visit the Netherlands and you order a hot drink, you’ll likely be given a sweet treat as well. That is a stroopwafel, a crispy little waffle-syrup sandwich that the Dutch like to rest on top of their drink so that the rising heat will soften the pastry....
Buck on Software
Model transitions: A framework for value creation
And a quick and dirty look at SPLK, NTNX, and GWRE
over a year ago
And a quick and dirty look at SPLK, NTNX, and GWRE
Willem's Blog
Dig for dummies
Learn how to use the dig command to query domain name servers to find the source of network...
over a year ago
Learn how to use the dig command to query domain name servers to find the source of network problems, IP-addresses, hostnames, mail servers and related info.
computers are bad
2023-12-23 ITT Technical Institute
Programming note/shameless plug: I am finally on Mastodon.
The history of the telephone industry is...
a year ago
Programming note/shameless plug: I am finally on Mastodon.
The history of the telephone industry is a bit of an odd one. For the greatest
part of the 20th century, telephony in the United States was largely a monopoly
of AT&T and its many affiliates. This wasn't always the case,...
Louwrentius
Using InfiniBand for cheap and fast point-to-point Networking
InfiniBand networking is quite awesome. It's mainly used for two reasons:
low latency
high...
over a year ago
InfiniBand networking is quite awesome. It's mainly used for two reasons:
low latency
high bandwidth
As a home user, I'm mainly interested in setting up a high bandwidth link between two servers.
I was using quad-port network cards with Linux Bonding, but this solution has some...
Jonas Hietala
Robot Project Start
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot....
over a year ago
So it has begun, the long road until christmas when we’re supposed to have a working warrior robot. We’re gonna do battle with infrared lasers instead of axes but it might be fun anyway. Luckily for me I’m responsible for software and nothing harder than that! w00p!
We could...
Home on Erik...
Learning from users faster using machine learning
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're...
over a year ago
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're running an e-commerce site (I kind of do) and you want to optimize the number of purchases.
Let's also say we try to learn as much as we can from users, both using A/B tests but also...
Jonas Hietala
Let's build a VORON: Build start
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was...
a year ago
The end goal, as rendered by Autodesk’s online viewer
I’m not sure where it came from, but it was suddenly very important that I got myself a 3D printer.
Maybe it was an important insight, but it maybe it was only a fix idea I got that somehow became this all-import...
Arduino Blog
Make your scary Halloween pumpkin smart with the Plug and Make Kit!
With Halloween just around the corner, we’ve got the perfect project to make your decorations more...
2 months ago
With Halloween just around the corner, we’ve got the perfect project to make your decorations more fun and interactive. All you have to do is take the Arduino UNO R4 WiFi and Modulino nodes included in your Plug and Make Kit to create an awesome jack-o’-lantern that will light up...
On Life and Lisp
The Federation Fallacy
Throughout the free software community, an unbridled aura of justified mistrust fills the air:...
over a year ago
Throughout the free software community, an unbridled aura of justified mistrust fills the air: mistrust of large corporations, mistrust of governments, and of course, mistrust of proprietary software. Each mistrust is connected by a critical thread: centralisation.
Thus,...
Notes on software...
Writing a SQL database from scratch in Go: 2. binary expressions and WHERE filters
Previously in database basics:
1. SELECT, INSERT, CREATE and a REPL
3. indexes
4. a...
over a year ago
Previously in database basics:
1. SELECT, INSERT, CREATE and a REPL
3. indexes
4. a database/sql driver
In this post, we'll extend gosql
to support binary expressions and very simple filtering on SELECT
results via WHERE. We'll introduce a general mechanism...
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...
Vitalik Buterin's...
Should Ethereum be okay with enshrining more things in the protocol?
a year ago
Odds and Ends of...
How I learned to stop worrying and love the military industrial complex
Whether Trump wins or loses today, Europe should tool up and prepare to fight.
a month ago
Whether Trump wins or loses today, Europe should tool up and prepare to fight.
Arduino Blog
How makers can use AR and VR
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in...
6 months ago
Augmented reality (AR) and virtual reality (VR) are both currently experiencing a meteoric rise in popularity, with the combined market expected to reach $77 billion by 2025, from just $15.3 billion in 2020. For makers, AR and VR represent exciting opportunities to build new...
Computer Ads from...
OS-9 Bonus Content
A detailed look at OS-9 for Tandy Color Computers
3 months ago
A detailed look at OS-9 for Tandy Color Computers
./techtipsy
So you want to migrate to Kubernetes: observations from a software developer
Kubernetes: everyone wants to do it, regardless of their scale and business objectives.1
Common...
2 months ago
Kubernetes: everyone wants to do it, regardless of their scale and business objectives.1
Common justifications include better scalability, cost savings, standardization and being super modern and stuff. It’s
the future!
In my personal experience, Kubernetes is far from the...
Birchtree
Yet more YouTube videos I've enjoyed recently
I guess this is a series now…
Do you have a chair where "half dirty" clothes go? If so, this chair...
a week ago
I guess this is a series now…
Do you have a chair where "half dirty" clothes go? If so, this chair will be very compelling.
I'm not a big fan of most Apple TV+ shows, but Severance was lovely and I can't wait
Jonas Hietala
Netrunner Lindhska Store Championship Örebro
After the awesomeness during the previous store championship, I decided to go to the store...
over a year ago
After the awesomeness during the previous store championship, I decided to go to the store championship at Lindhska Bokhandel in Örebro.
I brought a modified version of the same corp I used the last time, a Blue Sun kill deck and a new runner with Leela Patel. See the links for...
Matt Blewitt
So, You Want To Build A DBaaS Part 2: Technical Bits
In my first post in this pseudo-series, we covered more of the theory and organisational practices...
a year ago
In my first post in this pseudo-series, we covered more of the theory and organisational practices around building and operating a database-as-a-service platform. In this post, I’ll cover some of the more technical aspects of this that I think are worth considering, drawn from my...
On Life and Lisp
Hilariously Fast Volume Computation with the Divergence Theorem
(No, there won’t be jokes.)
The following presents a fast algorithm for volume computation of a...
over a year ago
(No, there won’t be jokes.)
The following presents a fast algorithm for volume computation of a simple, closed, triangulated 3D mesh. This assumption is a consequence of the divergence theorem. Further extensions may generalise to other meshes as well, although that is presently...
Opsbros
Pro-tip for Baristas
If you've ever filled one of those 'Cheeki' coffee cups, or virtually any other reusable coffee cup,...
over a year ago
If you've ever filled one of those 'Cheeki' coffee cups, or virtually any other reusable coffee cup, you've definitely come across the issue that when it's 'overfilled' it will overflow when the lid is put back on. There is a
Construction Physics
The Long Road to Fiber Optics
Over the past six decades, advances in computers and microprocessors have completely reshaped our...
3 months ago
Over the past six decades, advances in computers and microprocessors have completely reshaped our world.
Construction Physics
Energy Cheat Sheet
Building an intuition about energy
2 days ago
Building an intuition about energy
Arduino Blog
Receive an alert when your device goes offline in Arduino Cloud
You’re managing a network of IoT sensors that monitor air quality across multiple locations....
a month ago
You’re managing a network of IoT sensors that monitor air quality across multiple locations. Suddenly, one of the sensors goes offline, but you don’t notice until hours later. The result? A gap in your data and a missed opportunity to take corrective action. This is a common...
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 $$ bf{b}_i $$ .
Louwrentius
Tracking down a faulty Storage Array Controller with ZFS
One day, I lost two virtual machines on our DR environment after a storage vMotion.
Further...
over a year ago
One day, I lost two virtual machines on our DR environment after a storage vMotion.
Further investigation uncovered that any storage vMotion of a virtual machine residing on our DR storage array would corrupt the virtual machine's disks.
I could easily restore the affected...
Yazin Alirhayim
The Trouble With Optionality
Optionality’s one of those things you don’t really think about. People don’t generally wake up one...
over a year ago
Optionality’s one of those things you don’t really think about. People don’t generally wake up one morning thinking “Why, it appears I’ve spent the past several decades of my life optimizing for optionality. Perhaps I should figure out why?”.
Most don’t even recognize the term –...
Jonas Hietala
HandCash handles require trust and are insecure
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their...
over a year ago
The HandCash wallet has recently become a popular Bitcoin Cash wallet in large part thanks to their $handle concept. It’s basically a username you use instead of the normal Bitcoin Cash address, similar to how domain names abstract away IP addresses. For example instead of...
Home on Erik...
Annoy
Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm...
over a year ago
Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm not trying to compete with existing packages, but Annoy has a couple of features that makes it pretty useful.
On Life and Lisp
Fun and Games with Exposure Notifications
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact...
over a year ago
Exposure Notifications is a protocol developed by Apple and Google for facilitating COVID-19 contact tracing on mobile phones by exchanging codes with nearby phones over Bluetooth, implemented within the Android and iOS operating systems, now available here in Toronto.
Wait –...
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...
10 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...
Style over Substance
Using the EZCOO / AVStar HAE118 HDMI2.1 Audio Extractor for PS5/Xbox audio
Back in 2021, we bought a PlayStation 5 (PS5) as our main living room console. Making the most out...
a year ago
Back in 2021, we bought a PlayStation 5 (PS5) as our main living room console. Making the most out of this console meant we also had to buy a new TV, as our old TV was not 4K-compatible and did not support HDMI2.1, the new A/V standard required to support all of the PS5’s...
Matt Mullenweg
Observer Article
Alexandra Tremayne-Pengelly writes for the Observer, WordPress Founder Matt Mullenweg Is ‘More...
a month ago
Alexandra Tremayne-Pengelly writes for the Observer, WordPress Founder Matt Mullenweg Is ‘More Energized’ Than Ever Amid WP Engine Battle.
watchTowr Labs -...
“To live is to fight, to fight is to live! - IBM ODM Remote Code Execution
In previous blogs, we’ve discussed some of the big players in the enterprise software space, but...
10 months ago
In previous blogs, we’ve discussed some of the big players in the enterprise software space, but there is one that we have not mentioned before, that is - quite frankly - the heavy-weight champion of the world in terms of applications for large enterprises. With over a hundred
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...
Arduino Blog
Play rock-paper-scissors using a time-of-flight sensor and an Arduino UNO R4
Owing to its simplicity and fast-paced nature, rock-paper-scissors is a great game to play with...
5 months ago
Owing to its simplicity and fast-paced nature, rock-paper-scissors is a great game to play with friends, and when it comes to translating it into a digital format, many creative adaptations can be made. This version by madmcu forgoes the typical three-button input scheme in favor...
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...
Jonas Hietala
My MCU movie ranking
I did the MCU Movie Re-Watch again this year in preparation for Avengers: Endgame. I wasn’t a huge...
over a year ago
I did the MCU Movie Re-Watch again this year in preparation for Avengers: Endgame. I wasn’t a huge MCU fan before doing the same re-watch for Infinity War, but after that I became one.
For fun I tried to rank the movies as I saw them, this is some sort of accounting my rankings...
Old Vintage...
Adding a cooling fan to the Commodore 128DCR
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a...
a year ago
Call it a "refurb weekend sequel" to our previous work on my beloved Commodore 128DCR. It's been a hot, horrid summer in Floodgap Very Sub-Orbital Headquarters and I was somewhat concerned about the heat in the house computer lab even with the A/C cranked up to "Vegas weekend for...
Good Enough
TIL: Don’t forget your Web Manifest file
We’re primarily a web shop. We’re dipping our toes into mobile app development, but our collective...
a year ago
We’re primarily a web shop. We’re dipping our toes into mobile app development, but our collective expertise is in making products and services for the web. And like everyone else, our use of the web has shifted from our desktops and laptops to our phones.
As we’re creating and...
Home on Erik...
Simple sabotage for software
CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out...
a year ago
CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out various ways for infiltrators to ruin productivity of a company. Some of the advice is timeless, for instance the section about “General interference with Organizations and...
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...
Arduino Blog
A DIY bottle-labeling machine perfect for homebrewers
While it is certainly possible (and common) to put homebrewed beer into kegs, that requires...
6 months ago
While it is certainly possible (and common) to put homebrewed beer into kegs, that requires regulated gas and large refrigeration space. A keg is also more difficult to transport and overkill if you just want to bring a few beers to a friend’s backyard BBQ. For those reasons,...
Posts on Made of...
A Very Subtle Bug
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for...
over a year ago
6.033, MIT’s class on computer systems, has as one of its catchphrases, “Complex systems fail for complex reasons”. As a class about designing and building complex systems, it’s a reminder that failure modes are subtle and often involve strange interactions between multiple parts...
Arduino Blog
This desk lamp automatically adjusts its brightness using AI on an Arduino UNO
When you hear about all of the amazing things being accomplished with artificial intelligence today,...
6 months ago
When you hear about all of the amazing things being accomplished with artificial intelligence today, you probably assume that they require a massive amount of processing power. And while that is often true, there are machine learning models that can run on the edge — including on...
Opsbros
Nix Windows Feedback
There turns out to be a far easier way to disable the 'Win+F' Windows Feedback app.
over a year ago
There turns out to be a far easier way to disable the 'Win+F' Windows Feedback app.
lcamtuf’s thing
Weekend projects: getting silly with C
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
5 months ago
C is beautiful yet full of horrors. Here's to uncovering its hidden depths.
Jonas Hietala
Plans for Summer of Code
My first summer job is now over, and after a weekend of rest, it is now time to plan for my second...
over a year ago
My first summer job is now over, and after a weekend of rest, it is now time to plan for my second summer job: IDA Summer of Code.
I will work a month, or 4 weeks, with contributing to rust! The only issue is, I have no idea where to start. I didn’t have a strict plan or a vision...
Computer Ads from...
1988 Interview Between Scott McNealy of Sun Microsystems and MicroTimes
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
6 months ago
Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
Neil Madden
Machine Learning and the triumph of GOFAI
I’ve been slowly reading Brian Cantwell Smith’s “The Promise of Artificial Intelligence” recently. I...
5 months ago
I’ve been slowly reading Brian Cantwell Smith’s “The Promise of Artificial Intelligence” recently. I haven’t finished reading it yet, and like much of BCS’s writing, it’ll probably take me 3 or 4 read-throughs to really understand it, but there’s one point that I want to pick up...
Vitalik Buterin's...
Review of Optimism retro funding round 1
over a year ago
Jonas Hietala
Summer job at Configura
This is a wrap up of my 5 weeks at Configura as a summer internship. There were 6 interns and we had...
over a year ago
This is a wrap up of my 5 weeks at Configura as a summer internship. There were 6 interns and we had two teams doing different things. I worked with two other awesome guys and it was great!
The Premise
We had two assignments this summer. One was to create an optimized version of...
Jonas Hietala
2019 in Review
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on...
over a year ago
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on the past year, and see that I did indeed do some things, and to look ahead a little.
2019 Non-Geek Achievements
Played around with Isidor.
It’s hard to describe how happy a kid can...
Jonas Hietala
Geekhack Toxic
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it...
over a year ago
I came back to Linköping yesterday and I had a package waiting for me to pick it up. What could it be?
With a crummy mobile phone photo I give you my TOXIC keycaps mounted on my trusty old das keyboard:
Woooo
If only my GH60 could arrive some time this decade…
Louwrentius
My 71 TiB ZFS NAS after 10 years and zero drive failures
My 4U 71 TiB ZFS NAS built with twenty-four 4 TB drives is over 10 years old and still going...
3 months ago
My 4U 71 TiB ZFS NAS built with twenty-four 4 TB drives is over 10 years old and still going strong.
Although now on its second motherboard and power supply, the system has yet to experience a single drive failure (knock on wood).
Zero drive failures in ten years, how is that...
somenice
Generative 3D Modeling
Recently Microsoft released the open 3D generation software Trellis. I decided to try a few tests as...
5 days ago
Recently Microsoft released the open 3D generation software Trellis. I decided to try a few tests as reviews had been quite favourable with results creating 3D models with “AI”. The website describes the technology as unified Structured LATent (SLAT) representation and there is a...
lcamtuf’s thing
Analog filters, part 2: let it ring
A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key...
2 months ago
A continuation of the gentle intro to analog signal filtering. In today's episode: the Sallen-Key topology.
Applied Cartography
Notes on buttondown.com
We spent $85,000 for buttondown.com in April; this was the biggest capital expenditure I've ever...
3 months ago
We spent $85,000 for buttondown.com in April; this was the biggest capital expenditure I've ever made, and though it was coming from cash flow generated by Buttondown rather than my own checking account it was by rough estimation the largest non-house purchase I've ever made.
As...
somenice
Gold and Ghosts
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest...
a month ago
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest mountains, searching for a legend as old as the hills: the lost crate of gold. The tale of “Shining Creek Gold” was whispered in every saloon from Seattle to San Francisco, a cache...
Jonas Hietala
The games that make me who I am
I read an article the other day where he met someone who didn’t read fiction:
He suggested that...
over a year ago
I read an article the other day where he met someone who didn’t read fiction:
He suggested that fiction was a waste of his time — he read to learn, not for "mere" entertainment
I don’t agree with this view and neither did he:
Fiction allows you to be part of situations that are...
Home on Erik...
Analyzing 50k fonts using deep neural networks
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I...
over a year ago
For some reason I decided one night I wanted to get a bunch of fonts. A lot of them. An hour later I had a bunch of scrapy scripts pulling down fonts and a few days later I had more than 50k fonts on my computer.
Home on Erik...
What is the right level of specialization? For data teams and anyone else.
This isn't as much of a blog post as an elaboration of a tweet I posted the other day:
I think this...
over a year ago
This isn't as much of a blog post as an elaboration of a tweet I posted the other day:
I think this specialization of data teams into 99 different roles (data scientist, data engineer, analytics engineer, ML engineer etc) is generally a bad thing driven by the fact that tools are...
Vitalik Buterin's...
Exploring Fully Homomorphic Encryption
over a year ago
./techtipsy
I have a 'Dall UD19PB ThundeRbglt Dock': my experience with the HP Elitebook 845 G9
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and...
over a year ago
I’ve decided to give a new laptop a test drive, mainly because I had the
opportunity at work, and also out of morbid curiosity.
It’s the HP Elitebook 845 G9, and it has pretty good specifications:
CPU: AMD Ryzen 7 6800U
RAM: 2x16GB DDR5
Storage: 512GB KIOXIA NVMe SSD...
Yazin Alirhayim
Serializing and deserializing a Cookie Jar
I was recently working on a way to serialize and deserialize a Faraday connection that uses...
over a year ago
I was recently working on a way to serialize and deserialize a Faraday connection that uses HTTP::CookieJar to manage persistent cookies across requests.
I needed to do this because I wanted a way to “freeze” an HTTP connection instance, and later “thaw” it to resume the...
Vitalik Buterin's...
In Defense of Bitcoin Maximalism
over a year ago
Jonas Hietala
A Geek Valentine
Yes! I made it! It’s 22:22 on the very last day of February and I’ve been programming virtually...
over a year ago
Yes! I made it! It’s 22:22 on the very last day of February and I’ve been programming virtually non-stop for the past two days, my brain feels like mashed potatoes.
A Geek Valentine
Controls
Use spacebar to:
Build the time machine
Buy and place traps (Just face an empty square...
Notes on software...
The year in books: 2022
In 2022 I finished 20
books
spanning 15,801 pages. 3 more than I read in 2021, but about twice
the...
a year ago
In 2022 I finished 20
books
spanning 15,801 pages. 3 more than I read in 2021, but about twice
the number of pages. 3 fiction and 17 non-fiction. Another ~30 started
but not finished.
I had a hard time reading books while I was trying to start my own
company. But I also...
./techtipsy
About the time my ThinkPad T430 ran with an external GPU
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in...
5 months ago
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like
a tank. I got mine in 2016 when the first university scholarship money dropped,
and it’s still my backup laptop of choice.
Around 2017 I did something every reasonable poor computer science...
Arduino Blog
Speed up your project’s compile time by up to 50% in Arduino Cloud!
At Arduino, we know how precious your time is when you’re building your next big project or...
a week ago
At Arduino, we know how precious your time is when you’re building your next big project or experimenting with new ideas. That’s why we’re thrilled to introduce a game-changing update to the Cloud Editor Builder — the engine behind compiling your sketches in Arduino Cloud. This...
Jonas Hietala
2013 Read Books
I actually read more books in 2013 than in 2012.
In a somewhat unorganized list:
Fiction
Livet...
over a year ago
I actually read more books in 2013 than in 2012.
In a somewhat unorganized list:
Fiction
Livet Deluxe - Jens Lapidius
Escape from camp 14 - Blaine Harden
Wonderful. A great book.
Edge - Jeffery Deaver
Dollar - Lee Child
Gisslan - Lee Child
Bränd - Lee Child
Besökaren - Lee...
axio.ms
32-bit hat, with LEDs
Built in November 2015 (now-traditional multi-year writeup delay applied)
A hat,...
over a year ago
Built in November 2015 (now-traditional multi-year writeup delay applied)
A hat, bejewelled with 38 RGB LEDs
Is this thing on..? It’s been a while since I’ve written one of these.
So, the hat. It’s been on the writeup pile for almost 6 years, nagging away. Finally...
Posts on Made of...
Dear Twitter: Stop screwing over your developers.
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online...
over a year ago
I really like Twitter. I think it’s a great, fun, service, that helps enable interesting online communities, and is a surprisingly effective way to spread news and information to lots of people online. One of the things that I’ve loved about Twitter is their API, and how open and...
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...
./techtipsy
DIY cloud gaming setup with VFIO, Parsec and AMD
This is a follow-up to my previous post where I covered
the VFIO setup in general. For many people...
over a year ago
This is a follow-up to my previous post where I covered
the VFIO setup in general. For many people that would have been good enough, but my goal with this setup was to have a
powerful gaming setup that I could access from my living room PC with 20 meters of Ethernet cables...
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.
Home on Erik...
More Luigi alternatives
The workflow engine battle has intensified with some more interesting entries lately! Here are a...
over a year ago
The workflow engine battle has intensified with some more interesting entries lately! Here are a couple I encountered in the last few days. I love that at least two of them are direct references to Luigi!
Christian Selig
A free, 3D printable Meta Quest 3 stand
People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I...
8 months ago
People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I designed in Fusion 360 with the goal of being visually appealing and compact as it stored the headset vertically so it wouldn’t take up too much space on your desk.
Turns out there were...
Willem's Blog
Optimising images for the web and performance
Make your website faster by optimising the images. This posts explains how you can do this.
over a year ago
Make your website faster by optimising the images. This posts explains how you can do this.
Arduino Blog
Is there an online Arduino IDE?
Since the inception of Arduino, the Arduino IDE has been a go-to tool for people learning to code...
2 months ago
Since the inception of Arduino, the Arduino IDE has been a go-to tool for people learning to code and creating projects ranging from remote-controlled cars to soil moisture monitoring. No wonder it’s been downloaded over 24 million times this year, so far! Now if you’ve ever...
computers are bad
2024-02-25 a history of the tty
It's one of those anachronisms that is deeply embedded in modern technology.
From cloud operator...
10 months ago
It's one of those anachronisms that is deeply embedded in modern technology.
From cloud operator servers to embedded controllers in appliances, there
must be uncountable devices that think they are connected to a TTY.
I will omit the many interesting details of the Linux terminal...
csvbase blog
You can't just assume UTF-8
How to infer character encodings with statistics
7 months ago
How to infer character encodings with statistics
Good Enough
Lettini is Good Enough
We put a lot of ourselves into our work, and it occurs to us that you, dear reader, might not know...
a year ago
We put a lot of ourselves into our work, and it occurs to us that you, dear reader, might not know much about us. So we’re starting a new Q&A column to introduce ourselves, one-at-a-time, starting with our resident designer…
Who the hell do you think you are?
👋 Hello, I’m...
Christian Selig
Theming Apps on iOS is Hard
Theming apps (the ability to change up the color scheme for an app from say, a white background with...
over a year ago
Theming apps (the ability to change up the color scheme for an app from say, a white background with blue links to a light green background with green links) is a pretty common feature across a lot of apps. It’s one of the core features of the new “Twitter Blue” subscription,...
Home on Erik...
Benchmarking nearest neighbor libraries in Python
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in...
over a year ago
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in Python. This is exciting, because one of the libraries he's covering, annoy, was built by me.
After introducing the problem, he goes through the list of contestants and sticks with...
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...
Vitalik Buterin's...
How do trusted setups work?
over a year ago
Ken Shirriff's blog
Talking to memory: Inside the Intel 8088 processor's bus interface state machine
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor.
IBM's...
7 months ago
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor.
IBM's decision to use the 8088 processor in the IBM PC (1981) was a critical point in computer history,
leading to the success of the x86 architecture.
The designers of the IBM PC selected...
Louwrentius
Lion's Disk Utility not compatible with CoreStorage and Filevault
My 1 TB hard drive of my 2011 27" iMac was partitioned with:
A bootable partition with Mac OS X...
over a year ago
My 1 TB hard drive of my 2011 27" iMac was partitioned with:
A bootable partition with Mac OS X Lion
Time machine partition (I use an external SSD as my main OS)
Bootcamp partition with windows
A data partition containg... data.
The problem is that CoreStorage is too new. Disk...
Applied Cartography
Notes on Zed, revisited
A little over six months ago, I wrote Notes on Zed. My conclusion at that time was that Zed made a...
2 months ago
A little over six months ago, I wrote Notes on Zed. My conclusion at that time was that Zed made a lot of great choices and felt really good to use, but lacked parity with VS Code's feature/ecosystem to its detriment.
Six months later, I spent a few days using it as my daily...
Willem's Blog
Harvesting boredom to let creativity flourish
What does it mean for my state of mind and creativity if I am no longer be constantly connected to...
over a year ago
What does it mean for my state of mind and creativity if I am no longer be constantly connected to the Internet using a smartphone.
Ian's Blog
Mourning the Loss of Cohost
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting...
3 months ago
The staff running Cohost have announced (archived) that at the end of 2024 Cohost will be shutting down, with the site going read-only on October 1st 2024. This news was deeply upsetting to receive, as Cohost filled a space left by other social media websites when they stopped...
Applied Cartography
Auth.js + Square
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the...
7 months ago
Internal tools and small, well-scoped projects are a great avenue to tinker with technologies on the periphery of your understanding, and a Third South project has led me to spin up a small Next project using Bun [1] and Auth.js (nee next-auth), which has been quite bad and I...
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...
Good Enough
Why We're Writing Blog Software
We’re seven months into our Cosmic Maelstrom
and we have started writing blogging software.
What the...
a year ago
We’re seven months into our Cosmic Maelstrom
and we have started writing blogging software.
What the why?!
First, let me say that, yes, I do realize there are probably 100s of blog software options out there.
In terms of static-site generators (SSGs) alone, there are probably...
Louwrentius
Blu Ray is dead
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead....
over a year ago
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical
media is dead. Honestly, who is still burning CD's or DVD's nowadays? (If you
are, why for Christ sake? I can't think of a single good reason) And at 10
euros ($100) for a single Blu Ray disk, you must...
Matt Mullenweg
Where is Lee Wittlinger?
Lee controls the board of WP Engine. The board is why WP Engine hasn’t done a trademark deal for...
2 months ago
Lee controls the board of WP Engine. The board is why WP Engine hasn’t done a trademark deal for their use of the WordPress and WooCommerce trademarks. You hide behind lawyers and corporate PR when you’re wrong, not when you’re right. I’m replying on Twitter, I’m commenting on...
Jonas Hietala
Sat-E
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme...
over a year ago
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme this time around was Alone and the game I came up with is about a lonely satellite in space, kinda like Wall-E.
Sat-E
Instructions
Collect junk and other items for you to buy...
somenice
Russet Lake Early Summer
An early canvas of Fissile mountain reflected in Russet Lake. This time early summer when there was...
3 months ago
An early canvas of Fissile mountain reflected in Russet Lake. This time early summer when there was still a bit of ice on the lake and the mountain tops are covered with snow. The painting is framed in western red cedar. Russet Lake Early Summer by Andrew SmithAcrylic on canvas10...
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.
Posts on Made of...
Record/Replay testing in Sorbet
In 2017 and 2018, I (along with Paul Tarjan and Dmitry Petrashko) was a founding member of the...
over a year ago
In 2017 and 2018, I (along with Paul Tarjan and Dmitry Petrashko) was a founding member of the Sorbet project at Stripe to build a gradual static typechecking system for Ruby, with the aim of enhancing productivity on Stripe’s millions of lines of Ruby, and eventually producing a...
Willem's Blog
Scalable application design without magic
I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I...
over a year ago
I needed to design a scalable backend infrastructure that could handle lots of concurrent users. I did this by leveraging the client's computing power having it handle most of the user interaction workload.
Old Vintage...
The Fossil Wrist PDA becomes a tiny Gopher client (with Overbite Palm 0.3)
I don't always often wear watches. But when I do, I prefer Palm PDAs. Wired to my wrist.
all...
a year ago
I don't always often wear watches. But when I do, I prefer Palm PDAs. Wired to my wrist.
all about Palm devices on the Internet.
It turns out there's a reason for that, and we're going to patch the operating system so we can make the Fossil Wrist PDA into what may be the...
Home on Erik...
Leaving Spotify
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an...
over a year ago
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an amazing experience.
I joined Spotify in Stockholm in 2008, mainly because a bunch of friends from programming competitions had joined already.
Lighthouse Blog
Updates September 9: Feed finding
3 months ago
Applied Cartography
You should use Helpscout
Was digging through old issues of the personal site and found this draft snippet:
I was evaluating...
10 months ago
Was digging through old issues of the personal site and found this draft snippet:
I was evaluating HelpScout as a potential first step in a series of many, many steps to onboard a dedicated support engineer for Buttondown, and it turns out that the process of adding custom...
Vitalik Buterin's...
On Medium-of-Exchange Token Valuations
over a year ago
Notes on software...
Generating a REST API from a database
I recently published an alpha version of a code generation tool,
DBCore, that reads a...
over a year ago
I recently published an alpha version of a code generation tool,
DBCore, that reads a database
schema from PostgreSQL or MySQL and generates an entire Go API with
CRUD operations, pagination, filtering, and authentication.
But more than just generating code like
xo/xo or...
Louwrentius
Getting the Sitecom AC600 Wi-Fi adapter running on Linux
TL;DR Yes it works with some modifications of the driver source.
A USB Wi-Fi adapter I used with a...
over a year ago
TL;DR Yes it works with some modifications of the driver source.
A USB Wi-Fi adapter I used with a Raspberry Pi broke as I dropped it on the floor, so I had to replace it. I just went to a local shop and bought the Sitecom AC600 adapter as that's what they had available (with...
Applied Cartography
Typesafe routes in Vue
I watched Gary Bernhardt's talk on static routing back a few years ago and — I'm not sure if I would...
6 months ago
I watched Gary Bernhardt's talk on static routing back a few years ago and — I'm not sure if I would call it formative, but it stuck in my craw as a platonic ideal of sorts, as something I couldn't really justify adopting within Buttondown but really wanted.
I built out and...
Posts on Made of...
Automounting sshfs
For some time now, many of us around MIT have noticed just how awesome sshfs is. It gives a totally...
over a year ago
For some time now, many of us around MIT have noticed just how awesome sshfs is. It gives a totally lightweight way to access the remote filesystem of any machine you have ssh to, without requiring any extra setup on the host. I’ve been running for at least a year now with my...
Old Vintage...
MacLynx beta 5: UTF-8, pull-down menus and more dialogue boxes, oh my!
I've been working off and on doing further Mac-ification to my updated fork of MacLynx, the System...
a year ago
I've been working off and on doing further Mac-ification to my updated fork of MacLynx, the System 7-compatible port of the venerable text browser Lynx for classic 68K Macintoshes (and Power Macs) running A/UX 3.x or System 7.x and later. There's still more to do, but a lot has...
Jonas Hietala
Entering Pintos
First week of school is over and it’s been full throttle from the start, in a good way. We’re having...
over a year ago
First week of school is over and it’s been full throttle from the start, in a good way. We’re having four courses and for once I like them all. We have an interesting math course, a useful course “Software Development in Theory” (boring but useful) and a big project course where...
Good Enough
Season 3, Issue 4: Cosmic Staggering Tortoises
1. Weekly Studio Update
Hello. We're going to try doing this newsletter thing regularly. The...
a year ago
1. Weekly Studio Update
Hello. We're going to try doing this newsletter thing regularly. The ambitious goal is to write you a lovely letter every week. Aim for the moon, right? But wait, if you aim for the moon, how in this physical world can you possibly hit a star by...
Louwrentius
Belkin Gigabit USB 2.0 adapter works perfectly with Linux
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am
using a mac mini as my...
over a year ago
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am
using a mac mini as my internet router. As you may be aware, the mini has
only one network interface, so I added a second interface using a USB to
ethernet adapter. This adapter was limited to 100 Mbit, so...
Louwrentius
'Linux: show graphical layout of disk temperatures'
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a...
over a year ago
graphic, representation
To get a visual representation of hard drive temperatures, I wrote a small
script. The output of this script looks like this:
This output is tailored to the exact disk lay-out of my storage
server. However, it is also usable for other servers. You have to...
anderegg.ca
Playing with the Bluesky firehose
Over the weekend I started playing around with Jetstream, a project from the Bluesky team to deliver...
3 weeks ago
Over the weekend I started playing around with Jetstream, a project from the Bluesky team to deliver a JSON based firehose of atproto data. Here’s an overview of the simple project I built with that data.
I was inspired by a post from Simon Willison where he showed off a tool for...
Yazin Alirhayim
Braindump
Been having a hard time lately focusing.
It’s like whenever I start doing anything of any...
over a year ago
Been having a hard time lately focusing.
It’s like whenever I start doing anything of any significance I get derailed, and fall into this spiral of thought where I reconsider whether what I’m about to do matters, why it would, and whether I could be doing something else that...
Louwrentius
Things you should consider when building a ZFS NAS
ZFS is a modern file system designed by Sun Microsystems, targeted at enterprise environments. Many...
over a year ago
ZFS is a modern file system designed by Sun Microsystems, targeted at enterprise environments. Many features of ZFS also appeal to home NAS builders and with good reason. But not all features are relevant or necessary for home use.
I believe that most home users building their...
Posts on Made of...
Lab Notebooking for the Software Engineer
A few weeks ago, I wrote that software engineers should keep lab notebooks as they work, in addition...
over a year ago
A few weeks ago, I wrote that software engineers should keep lab notebooks as they work, in addition to just documenting things after the fact. Today, I’m going to share the techniques that I’ve found useful to try to get in the habit of lab-notebooking my work, even though I...
Home on Erik...
Luigi Presentation @ NYC Data Science, Dec 16, 2014
More Luigi presentations!
over a year ago
More Luigi presentations!
Opsbros
Volumer
I've always wanted a good USB volume control, so I decided to design one.
over a year ago
I've always wanted a good USB volume control, so I decided to design one.
Matt Mullenweg
Rhino Dehorning
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles,...
2 months ago
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles, elephants. Today wasn’t great: I witnessed a rhino shot with a tranquilizer from a helicopter, then it was held down, had its horns cut off, and then shaved down. I have some photos and...
computers are bad
2024-11-09 iron mountain atomic storage
I have quipped before about "underground datacenters," and how they never
succeed. During the late...
a month ago
I have quipped before about "underground datacenters," and how they never
succeed. During the late decades of the Cold War and even into the '00s, the
military and (to a lesser extent) the telecommunications industry parted ways
with a great number of underground facilities....
./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!
Posts on Made of...
Write yourself an strace in 70 lines of code
Basically anyone who’s used Linux for any amount of time eventually comes to know and love the...
over a year ago
Basically anyone who’s used Linux for any amount of time eventually comes to know and love the strace command. strace is the system-call tracer, which traces the calls that a program makes into the kernel in order to interact with the outside world. If you’re not already familiar...
Abort Retry Fail
The History of the IBM 5100
IBM's First Personal Computer
a year ago
IBM's First Personal Computer
Opsbros
JSON and PowerShell
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will...
over a year ago
Working with Object-based arrays in PowerShell can be a challenge; but here's a trick that will allow you to manipulate these objects efficiently.
computers are bad
2023-12-05 vhf omnidirectional range
The term "VHF omnidirectional range" can at first be confusing, because it
includes "range"---a...
a year ago
The term "VHF omnidirectional range" can at first be confusing, because it
includes "range"---a measurement that the technology does not provide. The
answer to this conundrum is, as is so often the case, history. The "range"
refers not to the radio equipment but to the space...
Arduino Blog
How to customize your Arduino Cloud IoT dashboards on the go
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage...
a month ago
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage their IoT projects with ease. From tracking sensor data to automating smart devices, the cloud enables seamless connectivity. Complementing this, the Arduino IoT Remote mobile app...
Notes on software...
How I run a software book club
I've been running software book clubs almost continuously since last
summer, about 12 months ago. We...
6 months ago
I've been running software book clubs almost continuously since last
summer, about 12 months ago. We read through Designing Data-Intensive
Applications, Database
Internals,
Systems
Performance, and
we just started Understanding Software
Dynamics.
The DDIA discussions were...
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
seangoedecke.com RSS...
Why some engineers get trusted with high-impact work
It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go...
21 hours ago
It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go around. Worse still, the chances to work on…
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...
Good Enough
Issue 0: Collector's Item
1. Oh, hello.
We didn’t see you there. How are you doing?
You’ve somehow ended up with a collector’s...
over a year ago
1. Oh, hello.
We didn’t see you there. How are you doing?
You’ve somehow ended up with a collector’s item in your hands: the very first Good Enough Newsletter. This is the beginning of what we (Barry Hess & Shawn Liu) hope to be a years-long series of communiqués with our rabid...
Vitalik Buterin's...
What do I think about biometric proof of personhood?
a year ago
computers are bad
2023-11-04 nuclear safety
Nuclear weapons are complex in many ways. The basic problem of achieving
criticality is difficult on...
a year ago
Nuclear weapons are complex in many ways. The basic problem of achieving
criticality is difficult on its own, but deploying nuclear weapons as
operational military assets involves yet more challenges. Nuclear weapons must
be safe and reliable, even with the rough handling and...
Birchtree
The “Bluesky feels like early Twitter!” vibe
Bluesky has the juice right now, and while it’s slowed down a bit this week, they were adding over 1...
3 weeks ago
Bluesky has the juice right now, and while it’s slowed down a bit this week, they were adding over 1 million users a day for a bit last week. One sentiment I’m hearing a lot recently is that Bluely “feels like early Twitter,” which
Posts on Made of...
Write testable code by writing generic code
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains...
over a year ago
Alex Gaynor recently asked this question in an IRC channel I hang out in (a channel which contains several software engineers nearly as obsessed with software testing as I am):
uhh, so I’m writing some code to handle an econnreset… how do I test this?
This is a good question!...
computers are bad
2023-03-13 the door close button
This will probably be a short one, and I know I haven't written for a while,
but it has always been...
a year ago
This will probably be a short one, and I know I haven't written for a while,
but it has always been the case that you get what you pay for and Computers
Are Bad is nothing if not affordable. Still, this is a topic on which I am
moderately passionate and so I can probably stretch...
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!
Posts on Made of...
A Brief Introduction to termios: termios(3) and stty
(This is part two of a multi-part introduction to termios and terminal emulation on UNIX. Read part...
over a year ago
(This is part two of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 if you’re new here)
In this entry, we’ll look at the interfaces that are used to control the behavior of the “termios” box sitting between the master and slave pty. The behaviors...
Louwrentius
Linode hacked: thoughts about cloud security
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of...
over a year ago
I bought a Linode VPS for private usage just after the report that Linode had reset all passwords of existing users regarding the Linode management console.
Resetting passwords is not something you do when under a simple attack such as a DDOS attack. Such a measure is only taken...
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.
Willem's Blog
Working with special hardware from China
This month I reversed engineered my way into developing software for a Chinese Android device with...
over a year ago
This month I reversed engineered my way into developing software for a Chinese Android device with an embedded printer!
Vitalik Buterin's...
[Mirror] Exploring Elliptic Curve Pairings
over a year ago
./techtipsy
OpenWRT, ISP modem and dynamic IP addresses: how to fix connectivity issues without rebooting your...
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem...
7 months ago
My current ISP provides an internet connection over a
copper wire. To use it,
I have a crappy modem (Technicolor CGA2121, DOCSIS 3.0). It’s running in bridge
mode,
meaning that all it does is convert the signal running over the coax cable
into plain old Ethernet.
My main...
Posts on Made of...
autocutsel
As most of you probably know, X has several different mechanisms for copy-paste, used by different...
over a year ago
As most of you probably know, X has several different mechanisms for copy-paste, used by different applications in different ways. I know some people who use them deliberately, juggling two pieces of text in different clipboards at once, but for me, it’s always just been...
Lighthouse Blog
Updates December 08: YouTube support
a year ago
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...
2 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
Eztables: simple yet powerful firewall configuration for Linux
I've created and released Eztables on Github. Anyone who ever has a need to setup a firewall on...
over a year ago
I've created and released Eztables on Github. Anyone who ever has a need to setup a firewall on Linux may be interested in this project.
It doesn't matter if you need to protect a laptop, server or want to setup a network firewall. Eztables supports it all.
If you're not afraid...
Ken Shirriff's blog
Inside an unusual 7400-series chip implemented with a gate array
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple...
9 months ago
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple die,
implemented in a straightforward, cost-effective way.
However, when I looked inside a military-grade chip built by Integrated Device Technology (IDT)4
I found a very unexpected...
Vitalik Buterin's...
Why we need wide adoption of social recovery wallets
over a year ago
Louwrentius
Benchmarking cheap SSDs for fun, no profit (be warned)
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now...
a year ago
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now possible to buy a 1TB solid-state drive for less than €60. However, at such low price points, there is a catch.
Although cheap SSDs do perform fine regarding reads, sustained write...
Posts on Made of...
Why the Sorbet typechecker is fast
This is the second in an indefinite series of posts about things that I think went well in the...
over a year ago
This is the second in an indefinite series of posts about things that I think went well in the Sorbet project. The previous one covered our testing approach.
Sorbet is fast. Numerous of our early users commented specifically on how fast it was, and how much they appreciated this...
Gwern.net Newsletter
November newsletter
November 2020 gwern.net newsletter with links on DL and genomics scaling, dark mode rewrite, 1...
over a year ago
November 2020 gwern.net newsletter with links on DL and genomics scaling, dark mode rewrite, 1 essay, and 1 opera review ('The Ring' cycle).
Willem's Blog
The value of notifications
It's easy to dismiss your phone's notifications as something that disturbs you, but if you take the...
over a year ago
It's easy to dismiss your phone's notifications as something that disturbs you, but if you take the time to set them up correctly, notifications can actually save you time!
Jonas Hietala
Giving the blog a facelift
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed...
a year ago
When I rewrote the blog in Rust I tried not to touch any of the styling, but some things annoyed me:
It wasn’t pretty (even ugly in some parts).
No dark mode support.
Some elements were broken, for instance images or code blocks overlapping the header when it was floating to the...
Willem's Blog
Offline Music
People sometimes act suprised when I tell them about my music hobby, manually converting CD's to...
over a year ago
People sometimes act suprised when I tell them about my music hobby, manually converting CD's to lossless audio files; there is some reason to this madness however!
computers are bad
2023-11-19 Centrex
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened...
a year ago
I have always been fascinated by the PABX - the private automatic branch
exchange, often shortened to "PBX" in today's world where the "automatic" is
implied. (Relatively) modern small and medium business PABXs of the type I like
to collect are largely solid-state devices that...
Jonas Hietala
Postmortem: Bugger
It’s time for the follow up on my latest game Bugger.
Wow it seems like forever since I begun this...
over a year ago
It’s time for the follow up on my latest game Bugger.
Wow it seems like forever since I begun this monthly game business, but it’s only been two months since I first thought about this and here I am having finished my third game. I’ve really come a long way, in the beginning I...
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...
Jonas Hietala
Writing a Pollen lexer in Pygments
After writing a few blog posts about Pollen I started getting annoyed that I didn’t have syntax...
over a year ago
After writing a few blog posts about Pollen I started getting annoyed that I didn’t have syntax highlighting for the code snippets. So I did a bit of fooling around with Pygments, and it turns out writing a custom lexer isn’t that unreasonable, so here’s how I did it.
Pollen...
csvbase blog
I didn't write any Javascript, and other shortcuts
Getting it done by not doing a lot of it
a year ago
Getting it done by not doing a lot of it
./techtipsy
How I ended up working as a software developer
I’ve officially worked as a software developer since August 2016, and by now I
have a fair share of...
4 months ago
I’ve officially worked as a software developer since August 2016, and by now I
have a fair share of stories to tell from those years. But those are stories for
another time.
Today I’d like to focus on where it all got started.
The early days
I never considered myself good with...
Posts on Made of...
CVE-2010-4258: Turning denial-of-service into privilege escalation
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different...
over a year ago
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different kernel vulnerabilities I reported recently. This post is about CVE-2010-4258, the most interesting of them, and, as Dan writes, the reason he wrote the exploit in the first place. In...
Old Vintage...
One-parting some Commodore 64 utilities for fun and profit
I've got a few retrocomputing bucket list items I'm slowly working down, and a couple of them...
a month ago
I've got a few retrocomputing bucket list items I'm slowly working down, and a couple of them involve some little Commodore 64 games I've had kicking around on the backburner. However, every game needs media assets, and while there are many great tools for doing art on your...
Posts on Made of...
Some thoughts on Quora
With the announcement this week that Quora had taken $11 million in VC at an $86 million valuation,...
over a year ago
With the announcement this week that Quora had taken $11 million in VC at an $86 million valuation, there’s been an awful lot of attention on Quora. I’ve had an account there and wanted to write up some of my initial thoughts.
If you haven’t heard about Quora, it’s yet another...
Applied Cartography
Two weeks of parenthood
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about...
2 months ago
We've had Lucy for two weeks, which qualifies us as experts, which means it is time to write about parenthood. (In all seriousness, consider the below descriptive and not prescriptive: mostly, it's a notepad filled with things that were remarkable or surprising or divergent from...
latest projects -...
LED Matrix Earrings
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
10 months ago
[Hardware] Itsy bitsy teeny weeny yellow dot-matrix LED
Louwrentius
Unattended automatic installation of Linux nvidia binary driver
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver....
over a year ago
As part of an unattended installation, it was necessary to install a binary
nvidia graphics driver. This is a manual proces by default. However, it can be
done fully automatic:
prerequisite: install xserver-xorg-dev package or similar xorg development
package.
sh NVIDIA-.run -q...
Arduino Blog
This portable Starmap could be your guide to the cosmos
Estimates vary, but there are generally a few thousand stars bright enough to see in the sky on a...
6 months ago
Estimates vary, but there are generally a few thousand stars bright enough to see in the sky on a clear, moonless, cloudless night away from city lights. You might be able to identify a couple of them, along with a handful of constellations. But what about the rest? If they...
Home on Erik...
Luigi conquering the world
I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself...
over a year ago
I keep forgetting to buy a costume for Halloween every year, so this year I prepared and got myself a Luigi costume a month in advance. Only to realize I was going to be out of town the whole weekend.
Computer Ads from...
Comics from 1982/02 Creative Computing Mag
Time for some humor
6 months ago
Louwrentius
HP Procurve "auto DoS" feature causing network problems
A feature on more recent HP Procurve models (18xx series, such as 1810G etc.)
is called "Auto DoS"....
over a year ago
A feature on more recent HP Procurve models (18xx series, such as 1810G etc.)
is called "Auto DoS". You can find it in the section "Security" and then
"Advanced security".
If you enable the Auto DoS feature, traffic is blocked based on one of these
conditions:
the source port...
Christian Selig
Juno for YouTube has been removed from the App Store
For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store...
2 months ago
For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store stating that Juno does not adhere to YouTube guidelines and modifies the website in a way they don’t approve of, and alludes to their trademarks and iconography.
I don’t personally...
On Life and Lisp
The first conformant M1 GPU driver
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the...
a year ago
Conformant OpenGL® ES 3.1 drivers are now available for M1- and
M2-family GPUs. That means the drivers are compatible with any OpenGL ES
3.1 application. Interested? Just install Linux!
For existing Asahi Linux users,
upgrade your system with dnf
upgrade (Fedora) or pacman
-Syu...
Home on Erik...
On the Equifax breach and how to really prevent identity theft
A funny thing about being a foreigner is how you realize people take broken things for granted. I'm...
over a year ago
A funny thing about being a foreigner is how you realize people take broken things for granted. I'm going to go out on a limb here claiming that the US has a pretty dumb banking system.
Posts on Made of...
Advent of Code in C++ Template Metaprogramming
This December, the imp of the perverse struck me, and I decided to see how many days of Advent of...
a year ago
This December, the imp of the perverse struck me, and I decided to see how many days of Advent of Code I could do purely in compile-time C++ metaprogramming.
As of this writing, I’ve done two days, and I’m not sure I’ll make it any further. However, that’s one more day than I...
Arduino Blog
Team Ikaro scores success with the Arduino Nano RP2040 Connect!
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in...
3 months ago
Team Ikaro is a vibrant group of high school students from the Pacinotti Archimede Institute in Rome, sharing a strong passion for electronics and turning heads in the world of robotics! Specializing in Soccer Lightweight games (where robot-soccer players compete to score goals...
GitButler
Git Merge 2024 Talks are Up
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
a month ago
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
Old Vintage...
Cracking DesignWare's The Grammar Examiner on the C64
It's been awhile since I've stripped the copy protection off a Commodore 64 software package. This...
a year ago
It's been awhile since I've stripped the copy protection off a Commodore 64 software package. This weekend I had a reason to.
The Grammar Examiner from 1984, something like a mashup between a board game and Strunk and White's Elements of Style, where you get to edit a fictional...
Posts on Made of...
Finding near-duplicates with Jaccard similarity and MinHash
Suppose we have a large collection of documents, and we wish you identify which documents are...
5 months ago
Suppose we have a large collection of documents, and we wish you identify which documents are approximately the same as each other. For instance, we may have crawled the web over some period of time, and expect to have fetched the “same page” several times, but to see slight...
computers are bad
2024-08-12 a pedantic review of the las vegas loop
Did you hear that Elon Musk dug a tunnel under the Las Vegas Convention
Center?
I think it is pretty...
4 months ago
Did you hear that Elon Musk dug a tunnel under the Las Vegas Convention
Center?
I think it is pretty universally known by now that the "Las Vegas Loop" is
impractical, poorly thought out, and generally an embarrassment to society and
industry. I will spare an accounting of the...
Buck on Software
Don't be foie gras
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
over a year ago
If 2016-2020 was the golden unicorn age of SaaS, 2021 nearly hurtled us into the foie gras* era.
Willem's Blog
Back to the University
Join me on a special course exploring scientific programming, the perfect moment to learn Python...
a year ago
Join me on a special course exploring scientific programming, the perfect moment to learn Python with recent advancements in machine learning like ChatGPT!
Arduino Blog
Can remote co-presence keep distant human connections alive?
The pandemic made a lot of things obvious, not the least of which is that humans need social...
5 months ago
The pandemic made a lot of things obvious, not the least of which is that humans need social interaction to maintain good mental health. Sadly, many of us spend our lives physically separated from our loved ones by great distances or inopportune circumstances. That’s why a team...
Jonas Hietala
The Top Idea
Recently I’ve been having a dozen ideas and projects I’ve been poking around with:
I wrote a simple...
over a year ago
Recently I’ve been having a dozen ideas and projects I’ve been poking around with:
I wrote a simple lua, later perl, which announced when a new day9 episode has come. Later I expanded it to search for new manga episodes, but now it’s broken and unfinished.
In an attempt to learn...
./techtipsy
What changing the CPU on a laptop looks like
This post illustrates something that is not common on modern laptops:
changing the...
over a year ago
This post illustrates something that is not common on modern laptops:
changing the CPU.
Background
One of the modifications that you can do to a ThinkPad T430 laptop is changing
the CPU to a more powerful quad core model. That’s exactly what I did back in 2017,
but due to the...
axio.ms
Colourclock
Original concept circa 2008, revisited 2012, hardware designed Feb 2014, firmware designed...
over a year ago
Original concept circa 2008, revisited 2012, hardware designed Feb 2014, firmware designed April-August 2014, project completed August 2014, installed in spare room in 2016, written up in March 2018 (jeeez…)
Acrylic, LEDs, ARM Cortex-M0 microcontroller.
...
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...
Good Enough
That time Marvel secretly endorsed my podcast with “the greatest comic book cover of all time”
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a...
a year ago
This is a blog post that has nothing to do with Good Enough, but I was told “There needs to be a record of this somewhere on the internet!” and I don’t have my own blog.
Years ago my friend and I ran a radio show called Gorilla Madness, which we also spun out into a podcast after...
Style over Substance
M4 Hex Socket Thumbscrew Knob Caps
For the past few weeks I’ve been teaching myself how to use Fusion 360, a free online cloud-based...
over a year ago
For the past few weeks I’ve been teaching myself how to use Fusion 360, a free online cloud-based CAD/CAM program that lets you create your own 3D designs. The best way to learn how to use a new program is to build something you actually need. And my latest design is a work in...
Electronics etc…
Remote Controlling an HP 1670G Logic Analyzer with a Linux PC X Server
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the...
12 months ago
Introduction
Reserving a fixed IP address for the logic analyzer
Assign the chosen IP address to the logic analyzer
Allow the logic analyzer to access your Ubuntu X server
Configure the X-window Settings on the logic analyzer
Install and declare the HP logic analyzer font...
Applied Cartography
Talking to customers
You say that these numbers mean dial it down. I say they mean dial it up. You haven't gotten...
2 months ago
You say that these numbers mean dial it down. I say they mean dial it up. You haven't gotten through. There are people you haven't persuaded yet. These number mean dial it up. Otherwise you're like the French radical, watching the crowd run by and saying, "There go my people. I...
Jonas Hietala
Swelling with New Shiny Books
So I read the wonderful Design for Hackers and I managed to win some money for books from a course…...
over a year ago
So I read the wonderful Design for Hackers and I managed to win some money for books from a course… So I ran away and ordered some new books, and they just arrived today. Yay!
First off I ordered Introduction to Algorithms which is the de facto book about algorithms and it seemed...
Arduino Blog
Introducing Opta Expansions: scalable simplicity!
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and...
7 months ago
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and allowed us to reach PLC engineers with a new solution specifically designed for their needs. To further expand Opta’s capabilities, today the Arduino ecosystem welcomes various...
Willem's Blog
Enjoy a festival without alcohol
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during...
over a year ago
This year I didn't drink alcohol during Rock Werchter, leading to interesting observations during the music festival.
Home on Erik...
Missing the point about microservices: it's about testing and deploying independently
Ok, so I have to first preface this whole blog post by a few things:
I really struggle with the...
over a year ago
Ok, so I have to first preface this whole blog post by a few things:
I really struggle with the term microservices. I can't put my finger on exactly why. Maybe because the term is hopelessly ill-defined, maybe because it's gotten picked up by the hype train.
Louwrentius
The Raspberry Pi 5 is no match for a tini-mini-micro PC
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable...
6 months ago
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable computer. An ideal home server. Until the Pi 4, the Pi was not that capable, and only with the relatively recent Pi 5 (fall 2023) do I feel the Pi is OK performance wise, although...
Willem's Blog
Influencing purchase behaviour
For my work I am continuously looking into scientific sources to improve e-commerce performance,...
over a year ago
For my work I am continuously looking into scientific sources to improve e-commerce performance, conversion rates and online revenue. Use this useful report to apply behavioural sciences principles to your advantage.
Lars Lofgren
The Sleazy World of Reddit Marketing, Everything is Fake
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of...
4 months ago
I’m going to show you how to cash grab as a Reddit moderator. 5 minutes of work, then thousands of dollars per month for doing nothing. Maybe tens of thousands. With a 100% real example. I’ve edited nothing. When you’re a Reddit mod, you have a TON of power in that subreddit. You...
Home on Erik...
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.
Simply Explained
I Built a CO2 Sensor and It Terrifies Me
Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is...
over a year ago
Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is equally important for our health and even our cognitive performance.In this blog post we'll look at a DIY CO2 sensor: how it runs ESPHome, how it integrates with Home Assistant, how it...
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