Push to Prod
One Key Aspect of Optimizing Computational Throughput
When optimizing throughput, think carefully about how many CPUs you have when adding threads or...
4 months ago
When optimizing throughput, think carefully about how many CPUs you have when adding threads or processes.
Jonas Hietala
Zucchini Crabcakes
With a tiny bit more planning I made a dinner out the lessons 4 and 5 as the crabcakes were only...
over a year ago
With a tiny bit more planning I made a dinner out the lessons 4 and 5 as the crabcakes were only supposed to be an appetizer:
Crabcakes: Surprisingly delicious. Both me and Veronica gives them a 7.
Zucchini: While I thought they passed Veronica said “Zucchini is not my thing” and...
Louwrentius
Why Debian/Ubuntu Linux is to be preferred
There are many Linux distributions around. However, I always come back to just
one: Debian. The...
over a year ago
There are many Linux distributions around. However, I always come back to just
one: Debian. The reason why so many people use Debian is the same reason I
like it so much: software management. With good old apt-get or the new
aptitude, software is installed within minutes. Due to...
Notes on software...
The world of PostgreSQL wire compatibility
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Applied Cartography
You gotta be able to taste the kool-aid
Cognition, a six-month-old startup in the AI coding space just raised $175m at a $2b...
9 months ago
Cognition, a six-month-old startup in the AI coding space just raised $175m at a $2b valuation:
Despite the skepticism surrounding Devin’s launch, the AI coding assistant has shown promising results. According to the SWE-Bench benchmark, which evaluates AI models on software...
Notes on software...
Speeding up Go's builtin JSON encoder up to 55% for large arrays of objects
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
seangoedecke.com RSS...
Writing a tech blog people want to read
My blog has gotten a lot of traffic in the last few months. Here’s what I think I’ve been doing...
a week ago
My blog has gotten a lot of traffic in the last few months. Here’s what I think I’ve been doing that’s working, and a few things that have…
anderegg.ca
How decentralized is Bluesky really?
Here’s an excellent article from Christine Lemmer-Webber that takes a deeper technical look into...
a month ago
Here’s an excellent article from Christine Lemmer-Webber that takes a deeper technical look into some of the criticisms I had in my previous piece.
The article is long, but very much worth a read. From the conclusion:
Bluesky is built by good people who care, and it is providing...
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!...
./techtipsy
How I treat my urge to hoard data
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized...
over a year ago
The tagline for /r/datahoarder reads:
“It’s A Digital Disease!”. I agree.
At some point I realized that the pursuit to hoard all the things will just keep
on consuming more and more of my time and money. Storage is cheap up until to a
point, once you find yourself tracking hard...
Home on Erik...
Annoying blog post
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which...
over a year ago
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which is an open source C++/Python library for Approximate Nearest Neighbor search.
I set up Travis-CI integration and spent some time on one of the issues that multiple people had...
Jonas Hietala
Postmortem: The Chronicles of Bim: The 100 Fake Afros
My first shooter! It’s working (although a friend got a null pointer error) so I’m a little...
over a year ago
My first shooter! It’s working (although a friend got a null pointer error) so I’m a little happy.
The Time
I spent about 24 hours on this game. A whopping 30% was break time, mostly me eating, reading manga or playing games… This is proof of me being really lazy this month I...
Home on Erik...
Slides from NYC Machine Learning talk
Slides from the talk. Slightly edited because (a) some of the slides make little sense taken out of...
over a year ago
Slides from the talk. Slightly edited because (a) some of the slides make little sense taken out of context (b) Slideshare seem to have problem converting some of the stuff.
Collaborative filtering at Spotify from Erik Bernhardsson
Old Vintage...
The "35-cent" Commodore 64 softmodem
Rockwell famously used 6502-based cores in modems for many years, but that doesn't mean other 6502s...
3 days ago
Rockwell famously used 6502-based cores in modems for many years, but that doesn't mean other 6502s couldn't be used. If only there were a way to connect a Commodore 64's audio output directly to an RJ-11 plug ...
Convergent WorkSlate stuff I've got to catalogue. Officially...
Notes on software...
Lessons learned streaming building a Scheme-like interpreter in Go
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like...
a year ago
I wanted to practice making coding videos so I did a four-part
series
on writing a basic Scheme-like language (minus macros and arrays and
tons of stuff).
I picked this simple topic because I wanted a low-stakes way to learn
what I did not know about making videos.
Here was the...
computers are bad
2023-03-24 docker
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a...
a year ago
Lately I tend to stick to topics that are historic by at least twenty years,
and that does have a lot of advantages. But I am supposedly a DevOps
professional, and so I will occasionally indulge in giving DevOps advice... or
at least opinions, which are sort of like advice but...
Posts on Made of...
Why node.js is cool (it's not about performance)
For the past N months, it seems like there is no new technology stack that is either hotter or more...
over a year ago
For the past N months, it seems like there is no new technology stack that is either hotter or more controversial than node.js. node.js is cancer! node.js cures cancer! node.js is bad ass rock star tech!. I myself have given node.js a lot of shit, often involving the phrase...
Posts on Made of...
A Cursed Bug
In my day job at Anthropic, we run relatively large distributed systems to train large language...
over a year ago
In my day job at Anthropic, we run relatively large distributed systems to train large language models. One of the joys of using a lot of computing resources, especially on somewhat niche software stacks, is that you spend a lot of time running into the long-tail of bugs which...
Gwern.net Newsletter
October 2020 news
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization &...
over a year ago
October 2020 gwern.net newsletter with links on AI scaling, Euclid; further site reorganization & improvement.
Notes on software...
Notes on running Electron
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Computer Ads from...
Two Interviews with Ken Kaplan, One of the Creators of OS-9
Two interview from two different time periods
5 months ago
Two interview from two different time periods
Construction Physics
The Influence of Bell Labs
We’ve talked previously about Bell Labs’ long, storied history as an innovation engine and a...
2 months ago
We’ve talked previously about Bell Labs’ long, storied history as an innovation engine and a generator of new technology.
Home on Erik...
NoDoc
We had an unconference at Spotify last Thursday and I added a semi-trolling semi-serious topic about...
over a year ago
We had an unconference at Spotify last Thursday and I added a semi-trolling semi-serious topic about abolishing documentation. Or NoDoc, as I'm going to call this movement. This was meant to be mostly a thought experiment, but I don't see it as complete madness.
Willem's Blog
CAPTCHA Alternative
If you're looking for a user-friendly alternative for CAPTCHA's you should check this post out where...
over a year ago
If you're looking for a user-friendly alternative for CAPTCHA's you should check this post out where I outline how I protect web forms against malicious actors and spammers.
Louwrentius
Monitor power usage with your UPS
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how...
over a year ago
If a system is connected to a UPS (Uninterruptible Power Supply), it is
possible to determine how much power it consumes. For this purpose, I wrote a
small script:
Host:~# ./ups.sh
UPS model: Back-UPS RS 1200 LCD
APC model: Back-UPS RS 1200 LC
Capacity: 720 Watt
Load: 18...
lcamtuf’s thing
Electric chainsaws and the gorge of misery
Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
5 months ago
Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
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...
7 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...
Lighthouse Blog
Updates November 24: Content parsing improvements
a year ago
Arduino Blog
Move Mario remotely with this online N64 controller system
For obvious reasons, video game console controls provide input commands directly to the console....
a month ago
For obvious reasons, video game console controls provide input commands directly to the console. Modern consoles may do so wirelessly, but the effect is the same: direct input. But what if you connected a “controller” to the internet? Then you could play from anywhere and that is...
Jonas Hietala
Resurrection
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not...
over a year ago
Aah what a nice summer!
It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
computers are bad
2023-05-07 electrical characteristics of telephone lines
Let's take a break from our boring topic of regional history to focus instead
on an even more boring...
a year ago
Let's take a break from our boring topic of regional history to focus instead
on an even more boring topic: implementation details of telephone lines.
The conventional "copper pair" analog telephone line is fading away. The FCC
has begun to authorize abandonment of copper outside...
Good Enough
Fixing Things
In 2009 I started doing something called "business travel." I bought a piece of dependable luggage:...
a year ago
In 2009 I started doing something called "business travel." I bought a piece of dependable luggage: the Travelpro WalkAbout Lite 2 22" Rollaboard Suiter. The reality was that this wasn't proper business travel. First, it'd only be two or three round-trip flights a year. Second,...
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...
Opsbros
Nokia 5110 - Back from the dead. Part 1: Nostalgia
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and...
over a year ago
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and still-memed mobile phone. As it turns out, not only is it possible, but it's going to be a lot easier than I anticipated.
Home on Erik...
2D embedding of 5k artists = WIN
I'm at KDD in Chicago for a few days. We have a Spotify booth tomorrow, and I wanted to put together...
over a year ago
I'm at KDD in Chicago for a few days. We have a Spotify booth tomorrow, and I wanted to put together some cool graphics to show. I've been thinking about doing a 2D embedding of the top artists forever since I read about t-SNE and other papers so this was a perfect opportunity to...
Abort Retry Fail
Housekeeping for 20240701
Another correction
6 months ago
GitButler
Git Merge 2024
Git Merge 2024 has wrapped and we all had a heck of a good time. Here's the overview.
3 months ago
Git Merge 2024 has wrapped and we all had a heck of a good time. Here's the overview.
Ken Shirriff's blog
Inside a ferroelectric RAM chip
Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special...
4 months ago
Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special "ferroelectric" material.
Ferroelectric memory is nonvolatile like flash memory, able to hold its data for decades.
But, unlike flash, ferroelectric memory can write data...
Arduino Blog
This smart spice box makes cooking a breeze
Many people shy away from cooking because they’re overwhelmed by all of the different steps and...
7 months ago
Many people shy away from cooking because they’re overwhelmed by all of the different steps and ingredients. Recipes are useful, but they aren’t very intuitive to those who are more comfortable with visual thinking. To help these people enjoy the cooking experience, Purdue...
Jonas Hietala
How I did the layout for my self-published book
This is a rundown of how I typeset and laid out my self-published book for the web version, the EPUB...
11 months ago
This is a rundown of how I typeset and laid out my self-published book for the web version, the EPUB version, and the printed version.
I was planning to include many more details, but the project took a lot longer than planned so I’ve forgotten some things.
Web page
I started...
Electronics etc…
Hideo Okawara’s Mixed Signal Lecture Series
Introduction
Hideo Okawara’s Mixed Signal Lecture Series
Frequency/Phase Movement Analysis by...
a year ago
Introduction
Hideo Okawara’s Mixed Signal Lecture Series
Frequency/Phase Movement Analysis by Orthogonal Demodulation
Misc
Introduction
While researching a DSP related topic, Google dug up an excellent article,
written by Hideo Okawara, that is just one part of a series of ~53. I...
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...
Ken Shirriff's blog
It's time to abandon the cargo cult metaphor
The cargo cult metaphor is commonly used by programmers.
This metaphor was popularized by Richard...
a week ago
The cargo cult metaphor is commonly used by programmers.
This metaphor was popularized by Richard Feynman's
"cargo cult science" talk with a vivid description of South Seas cargo cults.
However, this metaphor has three major problems.
First,
the pop-culture depiction of cargo...
Louwrentius
An affordable server platform based on server-grade hardware
Updated post (June 2014) found HERE
There are some reasons why you should consider buying true...
over a year ago
Updated post (June 2014) found HERE
There are some reasons why you should consider buying true server-grade harware when building a server, wether it's for home or business use.
This is why I want to introduce you to the Supermicro X9SCM-F motherboard.
This motherboard costs...
Home on Erik...
Pinterest open sources Pinball
Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two...
over a year ago
Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two blog posts: Pinball: Building workflow management (from 2014) and Open-sourcing Pinball (from this week). The author has a comment in the comments thread on Hacker News:
Jonas Hietala
Establishing Habits with Habitica
I have used Habitica the last 18 months to organize my habits and things I want to get done. I...
over a year ago
I have used Habitica the last 18 months to organize my habits and things I want to get done. I believe it all started with an amazing book called The Power of Habit which describes the amazing benefits habits can give, both in the context of your own life but also in business....
Jonas Hietala
Postmortem: Beebop The Island Hopper
So I participated in the Ludum Dare for the first time and this is a postmortem of my game Beebop...
over a year ago
So I participated in the Ludum Dare for the first time and this is a postmortem of my game Beebop The Island Hopper for the theme Islands.
About Ludum Dare
Ludum Dare is a competition which runs maybe two times a year and the competition is 24 hours long with a specific theme....
Lars Lofgren
How Live Chat Tools Impact Conversions and Why I Launched a Bad Variant
Do those live chat tools actually help your business? Will they get you more customers by allowing...
over a year ago
Do those live chat tools actually help your business? Will they get you more customers by allowing your visitors to chat directly with your team? Like most tests, you can come up with theories that sound great for both sides. Pro Live Chat Theory: Having a live chat tool helps...
Jonas Hietala
2021 in review
A new year is always a good time to review the past year. Funny how this is already the 12th year...
over a year ago
A new year is always a good time to review the past year. Funny how this is already the 12th year I’ve done this kind of quick review… Time sure flies.
2021 Non-Geek Achievements
Started strength training using a strength coach from Kabuki.
I got inspired by the book Peak that...
Computer Ads from...
Comics from 1986/06 Australian Personal Computer Mag
It’s that time of the month. This time let’s look at humor from down under. These comics are from...
9 months ago
It’s that time of the month. This time let’s look at humor from down under. These comics are from the June 1986 issue of Australian Computer magazine. Enjoy! What computer ads would you like to see in the future? Please comment below. If you enjoyed it, please share it with your...
Arduino Blog
Bringing Quake to Arduino: a game-changing project by Nicola Wrachien
Following up on his successful Doom port last year, engineer Nicola Wrachien – who works at Silicon...
3 months ago
Following up on his successful Doom port last year, engineer Nicola Wrachien – who works at Silicon Labs, a leader in secure, intelligent wireless technology for a more connected world and long-time Arduino partner – has now tackled an even bigger challenge: porting Quake, the...
computers are bad
2023-04-30 los alamos - compound to county pt II
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly...
a year ago
Where we left off, Los Alamos had become a county, but the town itself
continued to be directly administered by the Atomic Energy Commission (AEC).
The Atomic Energy Communities Act (AECA) mandated the AEC to dispose of the
towns it owned by transferring the property to private...
Applied Cartography
Tailwind black magic: styling paragraphs within tables
The new version of the Buttondown docs site is all in on Keystatic, Markdoc, and Tailwind's...
9 months ago
The new version of the Buttondown docs site is all in on Keystatic, Markdoc, and Tailwind's typography plugin — which makes it really easy to author beautiful docs in plaintext.
We ran into one small issue, which is that the Markdoc renderer likes to place paragraph tags in table...
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...
Jorge Arango
Humanities Crash Course: Week 2
I’m embarking on a year-long crash course in the humanities. These are my notes for week...
a week ago
I’m embarking on a year-long crash course in the humanities. These are my notes for week 2.
Following Ted Gioia’s curriculum, I tackled a small volume of early Greek poetry and the first ten books of the Odyssey. I also heard music from recent descendents of these ancient bards...
Jonas Hietala
Hard Work
I’ve spent literally the whole day coding and it feels like I’ve only done a small parts of the...
over a year ago
I’ve spent literally the whole day coding and it feels like I’ve only done a small parts of the actual game mechanics… I know this isn’t going to end well.
I can allow myself a small pause I feel…
Not sure where this is going to end, but I’m having a blast anyway!
Willem's Blog
Improve your sleep by blocking light
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's...
over a year ago
I have been wearing a sleep mask in bed, blocking all light. It has been amazing for my sleep's quality. Read along for my findings!
Notes on software...
Administering Kubernetes is hard
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to...
over a year ago
Kubernetes is easy to use after some exposure; it's pretty convenient
too. But it is super hard to set up.
eksctl is a good tool for folks who don't want to
spend hours/days/weeks debugging VPC configuration in 1000s of lines
of CloudFormation. None of the other tools seem to be...
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.
2 months ago
All the Git Merge 2024 talks are up on Youtube. Here is a quick summary of each one.
Arduino Blog
Galco goes Platinum! Welcome our newest SIPP
Founded in 1975 and headquartered in Madison Heights, Michigan, Galco is a leading e-commerce...
8 months ago
Founded in 1975 and headquartered in Madison Heights, Michigan, Galco is a leading e-commerce distributor that specializes in providing a wide range of industrial and commercial electrical and electronic products, focusing on maintenance, repair, and operations (MRO). Known for...
Louwrentius
HP Proliant Microserver Gen10 as router or NAS
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine...
over a year ago
Introduction
In the summer of 2017, HP released the Proliant Microserver Gen10. This machine replaces the older Gen8 model.
For hobbyists, the Microserver always has been an interesting device for a custom home NAS build or as a router.
Let's find out if this is still the case....
Vitalik Buterin's...
[Mirror] Central Planning as Overfitting
over a year ago
Birchtree
Gemini 2.0: speed and deep research impress
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today...
a month ago
From The Keyword Google blog: Introducing Gemini 2.0: Our New AI Model for the Agentic Era
Today we’re excited to launch our next era of models built for this new agentic era: introducing Gemini 2.0, our most capable model yet. With new advances in multimodality —
Odds and Ends of...
WATCH: Were the US election polls right?
My conversation with polling guru Mark Pack
2 months ago
My conversation with polling guru Mark Pack
Jonas Hietala
Let's build a VORON: Wrap-up
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to...
10 months ago
It’s finally done™.
I’ve built a VORON that prints reliably and I’ve modded it enough to be able to leave it alone for a while, so I think it’s time to wrap up this build series with a little retrospective.
Building the printer was really fun and rewarding
I’ve always seen...
Good Enough
Jelly was #1 on Hacker News
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious...
2 months ago
Yesterday, Lettini took a chance and posted about Jelly on Hacker News, a discussion site notorious for it's mercurial population of tech-maybe-too-saavy experts. Jelly is a tough sell for some of them, those with the technical skill to pipe email at a low level through...
Abort Retry Fail
The History of Windows 3
Windows becomes competitive
a year ago
Windows becomes competitive
Yazin Alirhayim
Part 2: Will greater access to capital spark Bahrain’s economy?
👉 If you haven’t read Part 1, do that first.
In the last post, I discussed the question of access...
over a year ago
👉 If you haven’t read Part 1, do that first.
In the last post, I discussed the question of access to capital and why’s important to verify that we do in fact have a problem before we attempt to “solve” it.
Now, we’re going to talk about the method for measuring the extent of...
Willem's Blog
Do amazing things with a focused mind
Read about my experience during the workshop I got as a birth day present involving the Wim Hof...
over a year ago
Read about my experience during the workshop I got as a birth day present involving the Wim Hof Method.
Applied Cartography
Using Cursor to port Django tests to pytest
When it comes to AI tooling, I am equal parts optimist and cynic. I have no moral qualm with using...
5 months ago
When it comes to AI tooling, I am equal parts optimist and cynic. I have no moral qualm with using these tools (Supermaven is a pretty heavy part of my day-to-day work), but have found most tools quite bad by the metric of "do they make me more productive on Buttondown's code...
Arduino Blog
This ‘smocking display’ adds data physicalization to clothing
Elastic use in the textile industry is relatively recent. So, what did garment makers do before...
6 months ago
Elastic use in the textile industry is relatively recent. So, what did garment makers do before elastic came along? They relied on smocking, which is a technique for bunching up fabric so that it can stretch to better fit the form of a body. Now a team of computer science...
./techtipsy
Dell Latitude 5411: the Linux compatibility sweet spot
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my...
a year ago
Oh boy, here I go testing a new laptop again!
Well, it was new back in 2020.
You might remember my article on why I went back to a ThinkPad T430 in 2022.
Or that other time when I got a new HP laptop for testing and got so frustrated that I wrote about it.
Well, today I’m writing...
Notes on software...
Writing to be read
There is a common struggle in the writing and maintenance of
documentation, checklists, emails,...
over a year ago
There is a common struggle in the writing and maintenance of
documentation, checklists, emails, guides, etc. Each provides immense
value; a document may be the key to an important process. The goal is
to remove barriers -- to encourage understanding and correct
application of...
./techtipsy
The minimum viable fan control script
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as...
over a year ago
I’ve always been a fan of tinkering with cooling setups on my computers.
I’ve even went as far as writing crappy
solutions to make up for
deficiencies on the hardware level. After years of dumb experiments I’ve seen
how little you can get away with in cooling and how to run your...
Jonas Hietala
Dbot
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl...
over a year ago
So I made a small irc bot in 294 characters in code-golfing language #1: Perl.
Usage
perl Dbot
Commands
.name - Echo the bots name
.hello - Output “hello world!”
.src - Dump the source code
Code
use IO::Socket;$s=IO::Socket::INET->new("158.38.8.251:6667");sub o{print$s...
Good Enough
Season 1, Issue 5: Promotes Regularity
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each...
over a year ago
Good Enough is taking a summer pause! We each have travel plans lined up for the summer. We each have at least two children in our homes, begging for attention. And we each truly appreciate extended breaks as a means of reinvigorating ourselves to the ever important task of...
Applied Cartography
Notebook as marketing primitive
Earlier this week, I stumbled upon this brilliant marketing-slash-documentation idea from...
3 months ago
Earlier this week, I stumbled upon this brilliant marketing-slash-documentation idea from SingleStore — notebooks as a first-party page! There are a handful of nice things about this idea:
Very easy to fan out. You're not going to really run out of sample notebooks from which you...
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...
Home on Erik...
Ping the world
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some...
over a year ago
I just pinged a few million random IP addresses from my apartment in NYC. Here's the result:
Some notes:
What's going on with Sweden? Too much torrenting? Ireland is likewise super slow, but not Northern Ireland Eastern Ukraine is also super slow, maybe not surprising given...
Applied Cartography
Postgres batch enqueuing in ten lines of Django
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count =...
a year ago
It hasn't failed me yet:
BATCH_SIZE = 100
def batch_proess(queryset) -> None:
count = queryset.count()
if count == 0:
time.sleep(10)
return
with transaction.atomic():
batch = list(
queryset.select_for_update(of=("self",),...
Old Vintage...
Refurb weekend: Canon Cat
It's the Memorial Day holiday weekend and it's time for a little deferred maintenance, especially on...
7 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...
Willem's Blog
Impact of training
Join me on an intriguing journey as I explore the transformative impact of effective training and...
a year ago
Join me on an intriguing journey as I explore the transformative impact of effective training and data analysis on my performance in the Fietselfstedentocht 2023.
Simply Explained
ESP32: Tips to increase battery life
Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes...
over a year ago
Running an ESP32 on a battery is a tricky operation. The chip is a powerhouse, and with power comes great responsibility. In this post, I’ll outline how I got an ESP32 to run for over 15 weeks (and counting) on a single 1000mAh battery.
Engineers Need Art
VPX Scripting - Part 2 (Linting)
The second in a series of posts about scripting Visual Pinball tables.
9 months ago
The second in a series of posts about scripting Visual Pinball tables.
Jonas Hietala
Ludum Dare 22 Here I Come
The time has finally come. After more than three hours of exam writing, and almost double spent on...
over a year ago
The time has finally come. After more than three hours of exam writing, and almost double spent on studying for it, I am now ready to declare my entry into Ludum Dare 22! I’ve been away far too long, with my entries for the 17th and the 20th dare being almost a century away, the...
Louwrentius
Setting up a Jabber instant messaging server |_http-title: Site doesn't have a title (text/html;...
I wanted to see how dificult it is to setup an instant messaging server based on open source...
over a year ago
I wanted to see how dificult it is to setup an instant messaging server based on open source software. Now I know that it is very easy, unless you are stubborn and do things your own way. In this example, I'm setting up a small IM server that is only for internal company use, but...
Arduino Blog
Arduino Cloud is now natively supported on tablets
We’re excited to announce the release of IoT Remote v3.0.0, featuring a native tablet version...
8 months ago
We’re excited to announce the release of IoT Remote v3.0.0, featuring a native tablet version (available for both Android and iOS platforms) optimized for unlocking the full potential of larger screen sizes. What is the Arduino IoT Remote app? The Arduino IoT Remote app allows...
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...
8 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
I switched my blog from Blogofile to Pelican
This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile...
over a year ago
This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile but I switched to Pelican.
Blogofile has seen almost no updates over the years and I consider the project dead. Realising that blogofile is dead, I decided to look around for...
Willem's Blog
Creating the ultimate commuter bike
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
over a year ago
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.
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...
Posts on Made of...
Indices point between elements
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a...
over a year ago
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this:
In this post, I want to persuade you to replace that image, or,...
Jonas Hietala
How I wrote a book using Pollen
I wrote an online book using Pollen, a static site generator in Racket. An earlier post contains my...
over a year ago
I wrote an online book using Pollen, a static site generator in Racket. An earlier post contains my first impressions of it, but as the book is now completed I think I can summarize some implementation details in more detail with this post.
I really like the markup language and...
Louwrentius
Script that shows smart values of all disks'
Please use this tool on github instead of this ancient script.
So you have a Linux system with a lot...
over a year ago
Please use this tool on github instead of this ancient script.
So you have a Linux system with a lot of hard drives. If you want to quickly check on some key SMART values to determine the health of individual disks, you might be interested in this script.
I wrote a small Python...
./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!
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...
Abort Retry Fail
Housekeeping 20241208
Corrections, stats, and an update
a month ago
Corrections, stats, and an update
Good Enough
TIL: Deploying a Sinatra app to Render.com
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me,...
a year ago
This morning I wanted to deploy a simple Sinatra app to Render.com.
It wasn’t super obvious to me, so I figured I’d write down what worked in the end.
First, a Gemfile:
# Gemfile
source 'https://rubygems.org'
gem 'sinatra'
gem 'sinatra-contrib'
gem 'puma'
* I’m pretty sure...
Posts on Made of...
Versioning dotfiles in git
I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines...
over a year ago
I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines for some time. I experimented with keeping all of ~ in subversion for a while, but it never worked out well for me.
I’ve finally settled on a solution that I like using git, and so...
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian
I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
7 months ago
I use note-taking software every day. I use it for journaling, blogging, capturing ideas, researching technologies, managing my projects, and many other things. Writing is how I think through problems, and note-taking software makes all that thinking easy to search and...
Louwrentius
Debian Lenny and Dell S300 H200 and H700 RAID controllers
update november 2010: it is reported in the comments that the next release
will support these...
over a year ago
update november 2010: it is reported in the comments that the next release
will support these controllers. However, which controllers are supported is
not clear. Also, we may have to wait for quite some time before squeeze will
be released.
Just a quick note: it seems that the...
Arduino Blog
A DIY weather display with dedicated outdoor sensor station
Weather stations are popular projects in the maker community because they’re useful and usually...
7 months ago
Weather stations are popular projects in the maker community because they’re useful and usually quite affordable to construct. But most that we see are really weather information displays that gather data through the internet from stations in the region. That data is fairly...
Louwrentius
Linux Software RAID benchmarking script
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use...
over a year ago
Just a small post.
To benchmark your Linux software RAID array as setup with MDADM, please use my
new benchmark script. I used this script to create these results.
You may need to configure some values within the header of this file to make
it fit your enviroment.
...
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...
Electronics etc…
Installing Linux GPIB Drivers for the Agilent 82357B
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the...
a year ago
Introduction
Other Installation Instructions
Agilent 82357B Initialization Process
Installing the Agilent 82357B GPIB Driver on an Ubuntu Linux Distribution
References
Introduction
I’ve started to grow a collection of older test equipment from the eighties, the
nineties, and the...
Jonas Hietala
Slackware update
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my...
over a year ago
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my installation and I decided to go through with a larger reinstallation once more. This is a log of some things I did differently.
Kernel
Before installing the kernel it’s nice to...
Louwrentius
Personal Security: erase your computer or phone before repair
Computer nerds are self sufficient when it comes to fixing their computer. Non-computer experts have...
over a year ago
Computer nerds are self sufficient when it comes to fixing their computer. Non-computer experts have to find some other person with greater computer knowledge to repair their computer or phone. That person will then be able to access all data stored on their computer or phone.
By...
Odds and Ends of...
Book now! Where we're going, we need roads (and trains)
My next in-person event/meet-up, with transport policy expert Michael Dnes!
a month ago
My next in-person event/meet-up, with transport policy expert Michael Dnes!
Abort Retry Fail
The History of Microsoft Encarta
Searchable Human Knowledge
a year ago
Searchable Human Knowledge
./techtipsy
ASRock X570M Pro4 motherboard overview
Not too long ago, I had the goal of consolidating all my computing needs onto a
single desktop PC....
over a year ago
Not too long ago, I had the goal of consolidating all my computing needs onto a
single desktop PC. That meant moving from an mITX-based build to something that
had a bit more expandability. Since I already had a
Fractal Meshify C Mini,
I decided to go for an mATX motherboard. And...
Construction Physics
Energy Cheat Sheet
Building an intuition about energy
a month ago
Building an intuition about energy
seangoedecke.com RSS...
Is it cynical to do what your manager wants?
When I suggest doing what your management chain wants, people call me cynical. Is it cynical to...
2 weeks ago
When I suggest doing what your management chain wants, people call me cynical. Is it cynical to deliberately work on things your company…
Posts on Made of...
A Brief Introduction to termios: Signaling and Job Control
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read...
over a year ago
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 or part 2 if you’re new here)
For my final entry on termios, I will be looking at job control in the shell (i.e. backgrounding and foreground jobs) and the very closely related...
Louwrentius
How to run Debian Linux on an Intel based Mac Mini
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy...
over a year ago
The Mac Mini is just a gorgeous device. It is beautiful, small, silent,
powerfull yet energy efficient. When idle, it uses around 20 watts. I'm using
one of the first Intel-based Minis with an Intel Core Duo chip, running at 1.6
Ghz.
I want to use this mini as an expensive router...
Ken Shirriff's blog
Reverse-engineering a carry-lookahead adder in the Pentium
Addition is harder than you'd expect, at least for a computer.
Computers use multiple types of adder...
4 days ago
Addition is harder than you'd expect, at least for a computer.
Computers use multiple types of adder circuits with different tradeoffs of size versus speed.
In this article, I reverse-engineer an 8-bit adder in the Pentium's floating point unit.
This adder turns out to be a...
Gwern.net Newsletter
December newsletter
December 2020 gwern.net newsletter with links on AI and technology; major new site feature:...
over a year ago
December 2020 gwern.net newsletter with links on AI and technology; major new site feature: fully-generalized recursive popups.
Arduino Blog
This Arduino-controlled Spin Meister helps spin up the perfect pizza
Dedicated pizza ovens are all the rage right now, as they provide a better-distributed and higher...
7 months ago
Dedicated pizza ovens are all the rage right now, as they provide a better-distributed and higher heat that many find more preferable than a conventional kitchen oven. But even a nice gas-powered pizza oven like the Ooni Koda 12 will have some hot spots and cold spots. To get an...
Jonas Hietala
Life and Shields
Time is running out! At least the more technical parts are mostly done. The ships have an acceptable...
over a year ago
Time is running out! At least the more technical parts are mostly done. The ships have an acceptable AI, they have rechargeable shields and they can now even be killed. Currently the game is far too easy, but it’s starting to look a little cooler at least.
Computer Ads from...
Creative Computing Magazine Interviews Clive Sinclair (1980)
This British inventor speaking about his ZX-80 computer system
a month ago
This British inventor speaking about his ZX-80 computer system
./techtipsy
Turning leftover PC parts into a decent gaming PC
Introduction
About a year ago, I bought an used PC based off of
a Lenovo Erazer X510. It had a...
over a year ago
Introduction
About a year ago, I bought an used PC based off of
a Lenovo Erazer X510. It had a dual-core Intel Pentium
G3220 CPU, 4GB of DDR3 RAM, a crappy Codegen 400W power supply and a 60GB SSD. I added an Nvidia GTX 1050 and just like
that, a budget gaming PC was born. My...
Home on Erik...
Being data driven
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long...
over a year ago
I picked up an issue of Foreign Affairs while flying back to NYC from SFO. It features this long interview with U.S. General Stanley McChrystal and I thought it was pretty interesting how striking some of the similarities are between fighting in a war and developing software.
./techtipsy
Good reads
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule,...
a year ago
This is an unsorted list of articles that I find to be good in one way
or another.
Maker’s Schedule, Manager’s Schedule
a must-read for anyone working in a software development team. Helps
express what most of us have felt at some point in our careers.
The case of the 500-mile...
Birchtree
📕 I mildly recommend: Life as No One Knows It (members post)
A new book explaining assembly theory, a new way of thinking about the question of "what is life?"
a week ago
A new book explaining assembly theory, a new way of thinking about the question of "what is life?"
Ken Shirriff's blog
Two interesting XOR circuits inside the Intel 386 processor
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a...
a year ago
Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching to a CMOS implementation.
I've been reverse-engineering parts of the 386 chip and came across two interesting and completely different
circuits...
seangoedecke.com RSS...
What it's like working for American companies as an Australian
For the last ten years I’ve worked for American tech companies as an Australian based in Australia....
a week ago
For the last ten years I’ve worked for American tech companies as an Australian based in Australia. First I worked in a satellite office for…
Abort Retry Fail
The History of OS/2
Getting a Divorce
a year ago
anderegg.ca
An update on Mastodon and referer headers
Earlier this year, I looked into why Mastodon didn’t include referer headers. As someone who enjoys...
3 weeks ago
Earlier this year, I looked into why Mastodon didn’t include referer headers. As someone who enjoys following web analytics, it seemed a shame that Mastodon appeared never to send any traffic. I knew this wasn’t the case, but that lack of traffic data certainly wasn’t doing...
Jonas Hietala
A *
After a few hours of coding I’ve made a little, little, bit of progress but it took a lot longer...
over a year ago
After a few hours of coding I’ve made a little, little, bit of progress but it took a lot longer than I would have liked.
I’ve basically managed to make a world and some tiles in the world and we have a worker who can move around on the tiles and he can’t move on all...
Simply Explained
How I Structure My ESPHome Config Files
I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know...
over a year ago
I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know they can run ESPHome.ESPHome is a modular firmware that you have to configure with YAML files. You define what components it should load and how it should talk to the hardware of...
Push to Prod
How Would You Design Amazon S3?
One of my favorite system design questions from a few years ago and a fascinating thing I learned...
3 months ago
One of my favorite system design questions from a few years ago and a fascinating thing I learned while answering it.
csvbase blog
How does it know I want csv? — An HTTP trick
Forgotten parts of RFC2616
over a year ago
Forgotten parts of RFC2616
Notes on software...
Implementing zip archiving in Golang: unzipping
All code for this post is available on Github.
Let's take a look at how zip files work. Take a small...
over a year ago
All code for this post is available on Github.
Let's take a look at how zip files work. Take a small file for example:
$ cat hello.text
Hello!
Let's zip it up.
$ zip test.zip hello.text
adding: hello.text (stored 0%)
$ ls -lah test.zip
-rw-r--r-- 1 phil phil 177 Nov 23 23:04...
Good Enough
TIL: Overriding Permalink Generation in FriendlyId
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails...
4 months ago
FriendlyId is a helpful Ruby gem that streamlines
creating permalinks and slugs for Rails applications. In Pika we're using it to help with
generating permalinks for blog posts and pages as well as slugs for tags. When a customer
wrote in with a request to modify the behavior of...
Matt Blewitt
7 Databases in 7 Weeks for 2025
I’ve been running databases-as-a-service for a long time, and there are always new things to keep...
a month ago
I’ve been running databases-as-a-service for a long time, and there are always new things to keep abreast of - new technologies, different ways of solving problems, not to mention all the research coming out of universities. In 2025, consider spending a week with each of these...
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...
11 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
Vitalik Buterin's...
Alternatives to selling at below-market-clearing prices for achieving fairness (or community...
over a year ago
Arduino Blog
The Club Master is a Nano RP2040 Connect-powered device that improves your golf swing
When playing golf, few things are as important as using the correct form when swinging, since even...
7 months ago
When playing golf, few things are as important as using the correct form when swinging, since even small deviations can be the difference between a hole-in-one and additional strokes. To improve his game, Concept Bytes has designed a small clip-on device called the “Club Master.”...
Arduino Blog
Reimagining the chicken coop with predator detection, Wi-Fi control, and more
The traditional backyard chicken coop is a very simple structure that typically consists of a...
5 months ago
The traditional backyard chicken coop is a very simple structure that typically consists of a nesting area, an egg-retrieval panel, and a way to provide food and water as needed. Realizing that some aspects of raising chickens are too labor-intensive, the Coders Cafe crew decided...
Birchtree
My favorite (and least favorite) movies of 2024
I’ve watched 48 new release movies in 2024, and with just a few weeks left in the year, I wanted to...
a month ago
I’ve watched 48 new release movies in 2024, and with just a few weeks left in the year, I wanted to make what is my current top 10 (plus honorable mentions & worst movies). As we get to the end of the year and you might have some
Jonas Hietala
CS:GO AWP Nerf
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I...
over a year ago
When this man opens his mouth, truth comes out.
https://www.youtube.com/watch?v=rsFnJYJ2buU
If I ever make a game and I want someone to balance it and I had the money, I would hire Thorin.
GitButler
Fearless Rebasing
GitButler now supports first class conflicts, which makes rebasing much less annoying. What is...
3 months ago
GitButler now supports first class conflicts, which makes rebasing much less annoying. What is "fearless rebasing"?
Notes on software...
Parser generators vs. handwritten parsers: surveying major language implementations in 2021
Developers often think parser generators are the sole legit way to
build programming language...
over a year ago
Developers often think parser generators are the sole legit way to
build programming language frontends, possibly because compiler
courses in university teach lex/yacc variants. But do any modern
programming languages actually use parser generators anymore?
To find out, this post...
Louwrentius
Systemd Forward Secure Sealing of system logs makes little sense
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into...
over a year ago
Systemd is a more modern replacement of sysvinit and its in the process of being integrated into most mainstream Linux distributions. I'm a bit troubled by one of it's features.
I'd like to discuss the Forward Secure Sealing (FSS) feature for log files that is part of systemd....
Notes on software...
Writing a simple JSON parser
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format...
over a year ago
Writing a JSON parser is one of the easiest ways to get familiar with
parsing techniques. The format is extremely simple. It's defined
recursively so you get a slight challenge compared to, say, parsing
Brainfuck; and you probably
already use JSON. Aside from that last point,...
Posts on Made of...
Distributed cloud builds for everyone
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous....
over a year ago
CPU cycles are cheaper than they have ever been, and cloud computing has never been more ubiquitous. All the major cloud providers offer generous free tiers, and services like GitHub Actions offer free compute resources to open-source repositories. So why do so many developers...
Home on Erik...
Optimizing over multinomial distributions
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 +...
over a year ago
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 + ldots + w_n = 1 $$ and $$ 0 le w_i le 1 $$ . Usually, $$ f $$ is concave and differentiable, so there's one unique global maximum and you can solve it by applying gradient ascent.
Notes on software...
The limitations of LLMs, or why are we doing RAG?
This is an external post of mine. Click
here
if you are not redirected.
7 months ago
This is an external post of mine. Click
here
if you are not redirected.
Louwrentius
Buying a new computer
*** Desktop or Laptop ***
When deciding on which computer to buy, the first decision you have to...
over a year ago
*** Desktop or Laptop ***
When deciding on which computer to buy, the first decision you have to make is about whether to go for a desktop or a laptop. There was a time that many believed that the desktop would become a niche product. Most people want a laptop because they can...
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.
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,...
8 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...
Louwrentius
The ZFS Event Daemon on Linux
If something goes wrong with my zpool, I'd like to be notified by email. On Linux using MDADM, the...
over a year ago
If something goes wrong with my zpool, I'd like to be notified by email. On Linux using MDADM, the MDADM daemon took care of that.
With the release of ZoL 0.6.3, a brand new 'ZFS Event Daemon' or ZED has been introduced.
I could not find much information about it, so consider...
Birchtree
I’m Knee-Deep in Turkey
Another week, another fantastically fun episode of Comfort Zone! This week Niléane talked about her...
a month ago
Another week, another fantastically fun episode of Comfort Zone! This week Niléane talked about her new Flight Simulator obsession, we go on a tangent about PC gaming, Chris (who says he’s an iPad guy) brings another Mac to talk about, and I had the gang look
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...
amd64 and va_arg
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t...
over a year ago
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t support the va_arg intrinsic, used by functions to accept multiple arguments, at all on amd64. It turns out that clang and llvm-gcc, the compilers that backend to LLVM, have their own...
Vitalik Buterin's...
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...
5 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...
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...
seangoedecke.com RSS...
Talking to ChatGPT costs 5ml of water, not 500ml
There’s a common claim on the internet that ChatGPT consumes half a litre of water for every 5-50...
2 months ago
There’s a common claim on the internet that ChatGPT consumes half a litre of water for every 5-50 responses. Here are some randomly-chosen…
Jonas Hietala
Favourite Programming Language
All the programmers love to promote their favourite language, or to hate on others. Now I read a...
over a year ago
All the programmers love to promote their favourite language, or to hate on others. Now I read a post which claimes my favourite language is not good enough! But he’s correct of course, there is no one language to rule them all. You should always choose the mest language for the...
Home on Erik...
Installing TensorFlow on AWS
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some...
over a year ago
Curious about Google's newly released TensorFlow? I don't have a beefy GPU machine, so I spent some time getting it to run on EC2. The steps on how to reproduce it are pretty brutal and I wouldn't recommend going through it unless you want to waste five hours of your live.
Willem's Blog
Assembling a cargo bike
How hard can it be to assemble a cargo bike? This posts shares my experience with assembling the...
over a year ago
How hard can it be to assemble a cargo bike? This posts shares my experience with assembling the Babboe Big cargo bike.
Home on Erik...
Headcount goals, feature factories, and when to hire those mythical 10x people
When I started building up a tech team for Better, I made a very conscious decision to pay at the...
over a year ago
When I started building up a tech team for Better, I made a very conscious decision to pay at the high end to get people. I thought this made more sense: they cost a bit more money to hire, but output usually more than compensates for it.
seangoedecke.com RSS...
MCTS and LLMs: what's the big deal?
Everyone on the internet is recently very excited about large language models and Monte Carlo tree...
7 months ago
Everyone on the internet is recently very excited about large language models and Monte Carlo tree search. Going back months, the “Q*” leak…
Christian Selig
Choosing a travel pack is hard
I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines...
8 months ago
I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines losing your stuff. Outside of requiring a bit more planning, what’s not to love?
Turns out this is a beloved product category with a passionate community behind it, and as a result...
Simply Explained
Tuya IR Hub: control Daikin AC (Home Assistant + ESPHome)
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to...
over a year ago
The release of ESPHome v1.15 brought better support for infrared climate control. This was enough to finally make my YTF IR Hub useable. Here's how I flashed ESPHome onto it and how I configured it for my Daikin AC and Home Assistant.
Applied Cartography
You need to be frictionlog-maxxing
Lots of people have spent the past few days discussing the perceived increase in difficulty in...
8 months ago
Lots of people have spent the past few days discussing the perceived increase in difficulty in getting an entry-level programming job relative to the halcyon ZIRP days of yesteryear. I am sympathetic to new grads running into this; I am dismayed that when I ask some [1] of them...
Birchtree
The future simply has more computers (members post)
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers...
a month ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Home on Erik...
I believe in the 10x engineer, but...
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be...
over a year ago
The easiest way to be a 10x engineer is to make 10 other engineers 2x more efficient. Someone can be a 10x engineer if they do nothing for 364 days then convinces the team to change programming language to a 2x more productive language.
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...
3 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...
Louwrentius
'Zabbix Security: client-server communication seems insecure'
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring...
over a year ago
Zabbix is a populair tool for monitoring servers, services and network
equipment. For monitoring hosts, Zabbix provides an agent that can be
installed on the hosts that must be monitored.
Based on the supplied documentation and some remarks on the internets,
the 'security' of...
Jonas Hietala
New Computer!
I briefly mentioned my new computer in the last post and I thought I’d make a post about it, as it’s...
over a year ago
I briefly mentioned my new computer in the last post and I thought I’d make a post about it, as it’s awesome (as all new computers are).
The specs:
GPU: Gigabyte GeForce GTX 550Ti OC 1GB
CPU: Intel core i5 2500K
CPU cooler: Zalman CNPS-9900NT
Motherboard: MSI P67A-C45 REV B3
Ram:...
Odds and Ends of...
Yes, AI really can be used to tackle potholes
It's not bullshit, it's already happening.
5 days ago
It's not bullshit, it's already happening.
Good Enough
Actual Customer Support Is Remarkable
What a sad thing to write.
We believe in good software around here.
There is a lot of poorly built...
a year ago
What a sad thing to write.
We believe in good software around here.
There is a lot of poorly built software on the Internet and in the app stores.
Our motivation with Good Enough is to try to put together a few products that feel just right to the folks using them.
The things we...
Home on Erik...
Model benchmarks
A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share...
over a year ago
A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share some insights. Here's benchmarks for some models. Note that we don't use all of them in production.
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...
4 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...
Louwrentius
The 'hidden' cost of using ZFS for your home NAS
Introduction
Update December 2023:
In June, it was announced that iXsystems would sponsor...
over a year ago
Introduction
Update December 2023:
In June, it was announced that iXsystems would sponsor implementing the VDEV expansion feature. A new pr has been created for this effort. The feature was merged into the code base, but may not be available to the general public before the end...
Louwrentius
How traffic shaping can dramatically improve internet responsiveness
At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are...
over a year ago
At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are a mid-size company, bandwidth is clearly a severe constraint. But it was not our biggest problem. Even simple web-browsing was very slow.
As I was setting up a monitoring...
Arduino Blog
GLEWBOT scales buildings like a gecko to inspect wall tiles
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the...
8 months ago
A great deal of building maintenance expenses are the result of simple inaccessibility. Cleaning the windows are your house is a trivial chore, but cleaning the windows on a skyscraper is serious undertaking that needs specialized equipment and training. To make exterior wall...
Vitalik Buterin's...
Ethereum has blobs. Where do we go from here?
10 months ago
Willem's Blog
Using a budget Android as main smartphone
I switched to Android to find out how good a budget smartphone performs compared to an expensive...
over a year ago
I switched to Android to find out how good a budget smartphone performs compared to an expensive iPhone.
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...
Engineers Need Art
Adam74
The Adam74 is a small ASCII-based terminal designed for the 8-bit hobbyist.
over a year ago
The Adam74 is a small ASCII-based terminal designed for the 8-bit hobbyist.
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 –...
Home on Erik...
Black Box Machine Learning in the Cloud
There's a bunch of companies working on machine learning as a service. Some old companies like...
over a year ago
There's a bunch of companies working on machine learning as a service. Some old companies like Google, but now also Amazon and Microsoft.
Then there's a ton of startups: PredictionIO ($2.7M funding), BigML ($1.6M funding), Clarifai, etc, etc.
Home on Erik...
Luigi Presentation @ NYC Data Science, Dec 16, 2014
More Luigi presentations!
over a year ago
More Luigi presentations!
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…
Christian Selig
First on New Blog
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will...
a year ago
Converted the blog over to a new Hugo theme! Hopefully everything here sorta works. Test post will remove.
This goat’s name is apparently Gubgub, and very cute.
Willem's Blog
Cleaning a vintage watch
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old...
over a year ago
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old beauty underneath layers of dirt!
Christian Selig
Announcing Juno 2.0
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been...
8 months ago
Juno’s been a really fun project to build, and it’s been so great hearing how other people have been enjoying Juno since its launch, as well as providing awesome feedback and input to improve it.
Today I’m releasing Juno 2.0, which incorporates a ton of that community feedback,...
Jonas Hietala
Failed mime type for Krita
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open)...
over a year ago
I thought Krita worked fine… Until I tried to save. Krita crashed whenever I tried to save (or open) a file and gave the error:
Could not find mime type "application/x-krita"
Turns out if you reinstall the package shared-mime-info which comes natively with Slackware the...
computers are bad
2024-08-19 mining for meteors
Billboards
Route 66 is often viewed through the lens of its billboards. The Jack Rabbit
Trading...
5 months ago
Billboards
Route 66 is often viewed through the lens of its billboards. The Jack Rabbit
Trading Post, a small store a few miles out of Joseph City, would hardly be
remembered were it not for its billboards spanning four states. The tradition
of far-advance billboards is still...
Simply Explained
Building Air Quality Sensor: Luftdaten + Home Assistant
Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the...
over a year ago
Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the world. Best of all: it's open-source and anyone can build a sensor.I was very curious to see the air quality in my neighborhood, so I decided to build myself a sensor. And of course,...
./techtipsy
Steam local network game transfers are a game-changer
Steam recently launched a new feature: local network game transfers.
The idea is simple: if you have...
a year ago
Steam recently launched a new feature: local network game transfers.
The idea is simple: if you have a game downloaded on another PC and you’re both on the same local network, then Steam can download game data
from that PC, avoiding the need to download the game over public...
./techtipsy
Life is maintenance, maintenance is life
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building...
a year ago
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building things.
When I was still an inexperienced junior developer who barely survived operating in a Linux
environment and saw backend development as a black box, I was happy to get...
Jonas Hietala
The T-34/0 keyboard layout
This is an update to the T-34 keyboard layout I’ve been using for a solid number of weeks. While...
over a year ago
This is an update to the T-34 keyboard layout I’ve been using for a solid number of weeks. While there are more changes I’d like to try, I’m quite pleased with these changes so I figured I might as well immortalize them before I explore further. (And I do have a bunch of big...
Matt Blewitt
So, You Want To Build A DBaaS
So you’ve made the decision to build a Database-as-a-Service product (or something similar). As a...
a year ago
So you’ve made the decision to build a Database-as-a-Service product (or something similar). As a result, you are making state and coordination your problem. Here are some things I’ve learned to keep in mind as you embark on this project, in no particular order (other than the...
Jonas Hietala
Starcraft 2 Keycaps
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure...
over a year ago
When I ordered this computer I was compelled, utterly compelled to buy a mechanical keyboard. Sure they cost almost 10x as much as a “regular” one and they didn’t even have these funky multimedia keys, what gives? Did I loose my insanity? It was supposed to give a great typing...
Notes on software...
Writing a simple JSON library from scratch: a tour through modern C++
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is...
over a year ago
Modern C++ has a lot of cool features. Move semantics means passing
around structs in functions is cheap. std::shared_ptr
means I don't have to manage any memory; no
more new/delete! (But try as I might to
understand std::unique_ptr, I'm just not there yet.)
The syntax has also...
Louwrentius
Scrub your NAS hard drives regularly if you care about your data
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known...
over a year ago
Introduction
Lots of people run a NAS at home. Maybe it's a COTS device from one of the well-known vendors1, or it's a custom build solution (DIY2) based on hardware you bought and assembled yourself.
Buying or building a NAS is one thing, but operating it in a way that assures...
Notes on software...
Tail call elimination
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated...
over a year ago
In this post we'll explore what tail calls are, why they are useful,
and how they can be eliminated in an interpreter, a compiler targeting
C++, and a compiler targeting LLVM IR.
Tail calls
A tail call is a function call made at the end of a block that
returns the value of the...
Notes on software...
Logical replication in Postgres: Basics
This is an external post of mine. Click
here
if you are not redirected.
5 days ago
This is an external post of mine. Click
here
if you are not redirected.
Louwrentius
Achieving 450 MB/s network file transfers using Linux Bonding
Linux Bonding
In this article I'd like to show the results of using regular 1 Gigabit network...
over a year ago
Linux Bonding
In this article I'd like to show the results of using regular 1 Gigabit network connections to achieve 450 MB/s file transfers over NFS.
I'm again using Linux interface bonding for this purpose.
Linux interface bonding can be used to create a virtual network...
Arduino Blog
Adding proximity unlock to an old car with the Arduino Nano 33 BLE
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically...
6 months ago
A lot of newer cars have a really nifty feature called “proximity unlock,” which automatically unlocks the doors when the driver approaches while carrying their key fob. When paired with a push-to-start ignition switch, the driver never has to take their keys out of their pocket....
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...
3 months ago
Noah Smith, author of the economics Substack Noahpinion, often refers to a common trajectory in Chinese manufacturing as the “China Cycle”:
Ian's Blog
Hardware-Accelerated Video Encoding with Intel Arc on Redhat Linux
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but...
2 months ago
I've been wanting hardware-accelerated video encoding on my Linux machine for quite a while now, but ask anybody who's used a Linux machine and they'll tell you of the horrors of Nvidia or AMD drivers.
Intel, on the other hand, seems to be taking things in a much different, much...
Matt Mullenweg
What’s in My Bag, 2025
It’s another year, I have ordered all the things and tested all the cables, there’s a little bit...
yesterday
It’s another year, I have ordered all the things and tested all the cables, there’s a little bit about tech and a little bit about life. Here’s what made the cut, now I’m going to be factoring in weight of everything as well. The flat-lay this year was taken at my sister...
Simply Explained
Filtering spam on YouTube with TensorFlow & AI
My YouTube channel has been attracting a lot of spammers. They try to trick people by saying they...
over a year ago
My YouTube channel has been attracting a lot of spammers. They try to trick people by saying they know how to profit from trading cryptocurrencies or that they can recover lost wallet keys.I've been marking these comments as spam, thinking that YouTube would learn to recognize...
Willem's Blog
Lessons from a takeaway plastic bag
How we're tricked into repeated purchases replacing perfectly fine products just for the sake of...
over a year ago
How we're tricked into repeated purchases replacing perfectly fine products just for the sake of change.
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...
Neil Madden
XSS doesn’t have to be game over
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game...
over a year ago
There’s a persistent belief among web security people that cross-site scripting (XSS) is a “game over” event for defence: there is no effective way to recover if an attacker can inject code into your site. Brian Campbell refers to this as “XSS Nihilism”, which is a great...
watchTowr Labs
Check Point - Wrong Check Point (CVE-2024-24919)
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and...
7 months ago
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and laying bare a recent in-the-wild exploited bug. This time, it is Check Point who is the focus of our penetrative gaze.
Check Point, for those unaware, is the vendor responsible for...
Christian Selig
Table of Contents Selector View
I wrote a new little view for a future version of Apollo that makes some changes to the default iOS...
over a year ago
I wrote a new little view for a future version of Apollo that makes some changes to the default iOS version (that seems to be a weird trend in my recent programming, despite me loving built-in components). Here’s some details about it! It’s also available as a library on GitHub...
Computer Ads from...
Sundial Systems' Relish
The Premier Workplace Shell Calendar, Phone Book, To Do List, and Program Runner, too
3 months ago
The Premier Workplace Shell Calendar, Phone Book, To Do List, and Program Runner, too
Notes on software...
Book Review: ANSI Common Lisp
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow....
over a year ago
Score: 4.5 / 5
Paul Graham and his editor(s) are excellent. His prose is light and
easy to follow. The only awkward component of the book's organization
is that he tends to use a concept one section before explicitly
introducing and defining that concept. I'm not sure yet if this...
Arduino Blog
Arduino Nicla Sense Env: adding advanced environmental sensing to a broad range of applications
We’re thrilled to announce the launch of Nicla Sense Env: the latest addition to our portfolio of...
3 months ago
We’re thrilled to announce the launch of Nicla Sense Env: the latest addition to our portfolio of system-on-modules and sensor nodes, empowering innovators with the tools to unlock new possibilities. This tiny yet powerful sensor node is designed to elevate your environmental...
Posts on Made of...
6.170, CVS, and SVN
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but...
over a year ago
I’m taking 6.170 Lab in Software Engineering this semester. The course sucks in various ways, but one of the most egregious, in my opinion, is that they force you to use CVS for your version control. Problem sets are distributed by the TAs importing them into your repository, and...
latest projects -...
Analemmagraph
[Concept] Video of a day, one year in every frame
a year ago
[Concept] Video of a day, one year in every frame
Louwrentius
Example of a home networking setup with VLANs
Updated October 24, 2012, see below.
This post is a description of my home network setup based on...
over a year ago
Updated October 24, 2012, see below.
This post is a description of my home network setup based on gigabit ethernet. I did a non-standard trick with VLANs that may also be of interest to other people. I'm going to start with a diagram of the network. Just take a look (click to...
Posts on Made of...
Some musings on ORMs
I’m pretty sure every developer who has ever worked with a modern database-backed application,...
over a year ago
I’m pretty sure every developer who has ever worked with a modern database-backed application, particularly a web-app, has a love/hate relationship with their ORM, or object-relational mapper.
On the one hand, ORMs are vastly more pleasant to work with than code that constructs...
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...
Engineers Need Art
Casady & Greene
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software...
4 months ago
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software publishing.
Birchtree
I don’t care about bad or missing features that I don’t use
Sometimes I’ll talk about something I like online and people will express shock that I can use a...
a month ago
Sometimes I’ll talk about something I like online and people will express shock that I can use a product that has such a clear downside. I’ve gotten people ask how I can use Things since it doesn’t have shared task lists. More recently I
./techtipsy
My cat water fountain comes with a spicy USB power adapter
It turns out that you can’t trust any USB type A power adapter to be within spec.
I have a Catit...
a year ago
It turns out that you can’t trust any USB type A power adapter to be within spec.
I have a Catit Flower Fountain
for my two adorable cats. The idea of a water fountain for cats may sound odd,
but having one really helps with cats staying hydrated and that alone avoids all
sorts...
Willem's Blog
Realtime service uptime monitoring
Downtime happens and it is nothing to be ashamed of, just make sure that you set yourself up to...
over a year ago
Downtime happens and it is nothing to be ashamed of, just make sure that you set yourself up to discover problems as soon as possible! Know about problems before your customers do!
Good Enough
Say hello to Jelly: the simplest way to jam on email as a team
Dear readers, we need to apologize. We know some of you have noticed that Good Enough has gotten...
6 months ago
Dear readers, we need to apologize. We know some of you have noticed that Good Enough has gotten much quieter this year than last, across this blog, our newsletter, and socials. We’ve been heads down for the last few months on something new, but we’re now ready to come back up...
Posts on Made of...
A week with the iPhone
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about...
over a year ago
I’ve had a new iPhone for about a week now, so I figure it’s time to write up some thoughts about it.
First, the little things. It is, in typical Apple fashion, an incredibly slick piece of work. Scrolling and zooming images or webpages is simple, easy, and, well, just fun to do...
Arduino Blog
Easily add Python-controlled GPIO pins to any computer
Let’s say that, hypothetically, you wanted to use your computer to blink an LED or read the state of...
7 months ago
Let’s say that, hypothetically, you wanted to use your computer to blink an LED or read the state of a button. Could you? Almost certainly not — at least not without additional hardware. Most modern computers don’t provide any interface for direct interaction with low-level...
anderegg.ca
Jet Lag: The Game: The Game
Some fun news today from the creators of Jet Lag: The Game. They officially announced the next...
2 months ago
Some fun news today from the creators of Jet Lag: The Game. They officially announced the next season, and also a “home version” of the game. I’ve written about Jet Lag: The Game before, so you might want to start there if you don’t know what I’m talking about.
On the latest...
Odds and Ends of...
Odds and Ends #49: How bat protection regulations broke Britain's planning system
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should...
3 weeks ago
Plus how Europe isn't *all bad* at growth, why every Netflix film is forgettable, and why you should visit Jimmy Carter's hometown.
Louwrentius
This blog is now running on solar power
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which...
over a year ago
Introduction
This blog is now running on solar power.
I've put a solar panel on my balcony, which is connected to a solar charge controller. This device charges an old worn-out car battery and provides power to a Raspberry Pi ~~3b+~~ 4B, which in turn powers this (static)...
Vitalik Buterin's...
How do layer 2s really differ from execution sharding?
8 months ago
Matt Blewitt
Table Stakes
This is a short post on what I see are table stakes for any new user-facing service, security-wise....
over a year ago
This is a short post on what I see are table stakes for any new user-facing service, security-wise. Mostly focused on user-focused, rather than intra-service, considerations.
Louwrentius
Cheap solution for putting an SSD in an iMac
If you want to order a new iMac with an SSD there are two problems:
An SSD of 256 gigabytes will...
over a year ago
If you want to order a new iMac with an SSD there are two problems:
An SSD of 256 gigabytes will cost you a lot: 600 euros.
The SSD is of medium quality, and does not justify the cost of 600 euros.
Here you can find information about the Toshiba SSD that Apple provides.
You can...
Willem's Blog
Cutting Cloud Costs
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud...
a year ago
Facing sky-high cloud costs, I found software optimisation vital. Discover how I saved 90% on cloud expenses!
Home on Erik...
I don't want to learn your garbage query language
This is a bit of a rant but I really don't like software that invents its own query language....
over a year ago
This is a bit of a rant but I really don't like software that invents its own query language. There's a trillion different ORMs out there. Another trillion databases with their own query language. Another trillion SaaS products where the only way to query is to learn some random...
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.
Applied Cartography
Tailwind black magic: swallowing all pointer events
I wrote two days ago about a real and useful application of Tailwind black magic; here's...
9 months ago
I wrote two days ago about a real and useful application of Tailwind black magic; here's another.
Buttondown has a dropzone component lets folks drag-and-drop items or click on it to get a file-picker. It's used for importing images, archives, CSVs, the works: because it's so...
seangoedecke.com RSS...
Writing good technical explanations
Software engineering is mainly learning. There is a great demand for technical explanations, and...
over a year ago
Software engineering is mainly learning. There is a great demand for technical explanations, and many thousands of books, talks and blog…
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...
6 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...
Neil Madden
The square roots of all evil
Every programmer knows Donald Knuth’s famous quote that “premature optimization is the root of all...
a month ago
Every programmer knows Donald Knuth’s famous quote that “premature optimization is the root of all evil”, from his 1974 Turing Award lecture (pdf). A fuller quotation of the surrounding context gives a rounder view: I am sorry to say that many people nowadays are condemning...
Louwrentius
Configuring, attacking and securing VRRP on Linux
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple...
over a year ago
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple routers in an active/passive configuration. If the primary router fails, the backup router takes over almost seamlessly.
This is how VRRP works:
Clients connect to a virtual...
Willem's Blog
Whoop strap review: 24/7 wearable sensor
over a year ago
watchTowr Labs
Fortinet FortiGate CVE-2024-23113 - A Super Complex Vulnerability In A Super Secure Appliance In...
Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a...
3 months ago
Today we'd like to share a recent journey into (yet another) SSLVPN appliance vulnerability - a Format String vulnerability, unusually, in Fortinet's FortiGate devices.
It affected (before patching) all currently-maintained branches, and recently was highlighted by CISA as...
Louwrentius
ZFS RAIDZ expansion is awesome but has a small caveat
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The...
over a year ago
Introduction
Update April 2023:
It has been fairly quiet since the announcement of this feature.
The Github PR about this feature is rather stale and people are wondering what the status is and what the plans are. Meanwhile, FreeBSD has announced In February 2023 that they...
Louwrentius
Firewire: the forgotten security risk
The battle between Firewire and USB has been won by USB, but Firewire is still
arround. It is not...
over a year ago
The battle between Firewire and USB has been won by USB, but Firewire is still
arround. It is not that prevalent, cheap computers lack Firewire, but they often
have a PCMCIA slot.
The thing is this: Firewire allows direct access to all RAM of your computer.
An attacker...
Home on Erik...
Machine, Platform, Crowd
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it...
over a year ago
I just bought Machine, Platform, Crowd: Harnessing Our Digital Future and discovered that it mentions my blog – in particular the post When machine learning matters.
Ok, I lied a little bit. I didn't discover it serendipitously.
Old Vintage...
When the Power Macintosh ran NetWare (featuring Wormhole and Cyberpunk)
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple...
a year ago
This entry and the software we'll demonstrate is in large part thanks to an anonymous Apple developer who was part of the NetWare team. Thank you!
the network operating system of the 1990s. Nothing was quite like it. Until Windows NT muscled in on its action near the end of the...
Home on Erik...
What's Erik up to?
I joined Better in early 2015 because I thought the team was crazy enough to actually change one of...
over a year ago
I joined Better in early 2015 because I thought the team was crazy enough to actually change one of the largest industries in the US. For six years, I ran the tech team, hiring 300+ people, probably doing 2,000+ interviews, and according to GitHub I added 646,941 lines of code...
Louwrentius
Rebooting results in degraded RAID array using Debian Lenny
As described earlier, I setup a RAID 6 array consisting of physical 1 TB disk
and 'virtual' 1 TB...
over a year ago
As described earlier, I setup a RAID 6 array consisting of physical 1 TB disk
and 'virtual' 1 TB disks that are in fact two 0.5 TB disks in RAID 0.
I wanted to upgrade to Lenny because the new kernel that ships with Lenny
supports growing a RAID 6 array. After installing Lenny...
On Life and Lisp
Growing up Alyssa
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky...
a year ago
When I was 10, I came out as transgender. I was a girl and I knew it.
I was one of the lucky ones.
After four painful years, I was fortunate enough to access gender-affirming health care. First testosterone blockers. Later estrogen, the stuff my peers soaked in for years while I...
Matt Blewitt
On That Okta LDAP Bug
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance...
2 months ago
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance of sensible defaults.
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
6 months ago
Good Enough
You Complete Me
When Good Enough was in its infancy as a truly American LLC (formed in Delaware and representing one...
a month 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...
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.
Arduino Blog
Monitoring the weather with an Arduino MKR WiFi 1010-based station
Being able to monitor the weather in real-time is great for education, research, or simply to...
8 months ago
Being able to monitor the weather in real-time is great for education, research, or simply to analyze how the local climate changes over time. This project by Hackster.io user Pradeep explores how he was able to design a simple station outdoors that could communicate with a...
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...
Jonas Hietala
Coconut Cauliflower Curry Mash
It’s time for lesson 3. I made the mistake of not planning for something to augment the mash with,...
over a year ago
It’s time for lesson 3. I made the mistake of not planning for something to augment the mash with, but a simple salad had to do:
It was okay. Girlfriend gave it 5/10 and I gave it a 6/10, a higher rating would be possible if there was something else to eat it with.
computers are bad
2024-04-05 the life of one earth station
Sometimes, when I am feeling down, I read about failed satellite TV (STV)
services. Don't we all?...
9 months ago
Sometimes, when I am feeling down, I read about failed satellite TV (STV)
services. Don't we all? As a result, I've periodically come across a company
called AlphaStar Television Network. PrimeStar may have had a rough life, but
AlphaStar barely had one at all: it launched in...
Jonas Hietala
Trying and returning the Eight Sleep Pod 4
I recently bought the Eight Sleep Pod 4—a smart mattress cover that tracks your heart rate, HRV,...
3 months ago
I recently bought the Eight Sleep Pod 4—a smart mattress cover that tracks your heart rate, HRV, snoring, and cools or warms the mattress during the night.
There’s a lot to like about the mattress but in the end I opted to return it.
This post describes my experience with the Pod...
Good Enough
TIL: Tapback Keyboard Shortcuts
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant...
a year ago
If you use Mac, and you use Messages on your Mac, you will probably know that in the not-too-distant past, simple reactions to messages were added: what Apple calls Tapbacks.
These are great for a quick way to say yes (or no, or WTF!?!), but they are a bit of a pain to actually...
Neil Madden
Entity authentication with a KEM
In cryptography, the process of authenticating a user (or app/service) is known as entity...
a year ago
In cryptography, the process of authenticating a user (or app/service) is known as entity authentication or identification (to distinguish it from message authentication or data origin authentication). There are lots of ways to do this. In this post I’m going to talk about...
Old Vintage...
The spawn of AtariLab and the Universal Lab Interface
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't...
a year ago
We were a Commodore 64/128 household growing up, and Apple IIe systems at school, but that doesn't mean I was unaware of Atari 8-bits. There was a family at church who had an 800XL and later a 130XE — and a stack of COMPUTE!'s I used to read through for hours — and it was...
Home on Erik...
Meta-blogging
(This is not a very relevant/useful post for regular readers – feel free to skip. I thought I would...
over a year ago
(This is not a very relevant/useful post for regular readers – feel free to skip. I thought I would share it so people can find it on Google.)
My blog blew up twice in a week earlier this year when I landed on Hacker News.
Posts on Made of...
Computers can be understood
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially...
over a year ago
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially all of my work with software. I attempt to articulate this mindset, some of its implications and strengths, and some of the ways in which it’s lead me astray.
Software can be...
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 –...
Bryan Braun - Blog
Before you buy a domain name, first check to see if it’s haunted
In mid-2022 I bought a new domain name.
The name was musicbox.fun. I got it for a side-project, an...
2 months ago
In mid-2022 I bought a new domain name.
The name was musicbox.fun. I got it for a side-project, an interactive online music box that I had built and hosted at musicboxfun.com. The new name was shorter and more quirky. I felt lucky to have grabbed it.
Unfortunately, musicbox.fun...
watchTowr Labs
Veeam Backup & Response - RCE With Auth, But Mostly Without Auth (CVE-2024-40711)
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup &...
4 months ago
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup & Replication’. Unfortunately, so is every ransomware operator, given it's somewhat 'privileged position' in the storage world of most enterprise's networks. There's no point deploying...
Arduino Blog
Prototype faster and smarter in 2025: Meet the Arduino Pro Portenta Proto Kit
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how...
2 weeks ago
Launching today at CES 2025, the Arduino Pro Portenta Proto Kit is here to revolutionize how professionals approach prototyping. Designed to empower engineers, designers, and innovators from all walks of life, this kit provides everything you need to turn your ideas into...
Old Vintage...
Pretty pictures, bootable floppy disks, and the first Canon Cat demo?
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to...
6 months ago
Now that our 1987 Canon Cat is refurbished and ready to go another nine innings or so, it's time to get into the operating system and pull some tricks.
from our historical discussion of the Canon Cat, the Cat was designed by Jef Raskin as a sophisticated user-centric computer...
Applied Cartography
Incumbency
Andrew Rea with an interesting and increasingly familiar take about how AI will disrupt...
6 months ago
Andrew Rea with an interesting and increasingly familiar take about how AI will disrupt software-focused private equity:
Distribution and brand moats can protect your legacy products for a while (esp in enterprise) but eventually you get lapped by competitors with better...
Vitalik Buterin's...
Don't overload Ethereum's consensus
a year ago
Notes on software...
Analyzing large JSON files via partial JSON parsing
This is an external post of mine. Click
here
if you are not redirected.
over a year ago
This is an external post of mine. Click
here
if you are not redirected.
Neil Madden
CVE-2022-21449: Psychic Signatures in Java
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to...
over a year ago
The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to get out of trouble by showing an identity card which is actually completely blank. Of course, this being Doctor Who, the card is really made out of a special “psychic paper“, which...
Jonas Hietala
Postmortem: A Geek Valentine
Ah man the mush in my brain is finally letting go and I’m starting to feel this tiny little...
over a year ago
Ah man the mush in my brain is finally letting go and I’m starting to feel this tiny little programming urge again… This time it’s not Haskell or a new experimental game that’s luring me on, no this time it’s me longing to create this fantastic awesome epic RTS game. Sadly it’s a...
Jonas Hietala
The End of the Tunnel
Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from...
over a year ago
Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from the last time.
One course about data structure and algorithms (super fun to be honest) has wrapped up. We thought we were ahead with the assignments but in the end it got very...
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...
7 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...
somenice
Gold and Ghosts
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest...
2 months ago
In the autumn of 1892, two miners, Earl and Edward, found themselves high in the Pacific Northwest mountains, searching for a legend as old as the hills: the lost crate of gold. The tale of “Shining Creek Gold” was whispered in every saloon from Seattle to San Francisco, a cache...
Notes on software...
Is it worth writing about?
You acquire a skill or experience through time and effort,
then downplay the impact of writing and...
over a year ago
You acquire a skill or experience through time and effort,
then downplay the impact of writing and sharing the learning
process.
Professionals seem naturally to imagine a high bar for what
is worth writing about.
I think that's misguided. This article is not criticism of folks...
Arduino Blog
Controlling a drum machine with the Arduino Opta
Makers have long asked the question “why bother with an expensive PLC when I can just use an...
7 months ago
Makers have long asked the question “why bother with an expensive PLC when I can just use an Arduino?” The answer comes down to the priorities and needs of industrial clients. In a factory automation setting, the client will prioritize durability, reliability, and serviceability...
Ian's Blog
Learn how Windows builds its store of trusted root CA certificates
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It...
over a year ago
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It might surprise you, and it certainly did for me, but out-of-the-box Windows doesn't come with a set of root CA certificates sufficient for web browsing.
You can see this for...
somenice
Matter as a Smart home standard
Matter is the name of the smart home standard that promises to bridge IOT devices and different home...
9 months ago
Matter is the name of the smart home standard that promises to bridge IOT devices and different home eco-systems. Amazon Alexa, Google Home, Apple Homekit, Samsung SmartThings, etc. To prevent 6+ flavours of smart lightbulbs working with 6+ different apps, a standard needed to be...
latest projects -...
Talking Tines
[Concept] Tuning forks that talk
6 months ago
[Concept] Tuning forks that talk
Louwrentius
Why I believe the new Mac Pro won't be a great machine for gaming
In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking...
over a year ago
In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking about buying a new Mac Pro for gaming.
I believe that gaming on the new Mac Pro will be a mediocre experience.
Driver support: as John mentioned himself, the video cards are...
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!)...
6 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...
Lighthouse Blog
Introducing Lighthouse - The RSS reader, newsletter reader, and read-it-later app to fight content...
9 months ago
On Life and Lisp
AAA gaming on Asahi Linux
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which...
3 months ago
Gaming on Linux on M1 is here! We’re thrilled to release our Asahi
game playing toolkit, which integrates our Vulkan 1.3 drivers with x86
emulation and Windows compatibility. Plus a bonus: conformant OpenCL
3.0.
Asahi Linux now ships the only conformant OpenGL®,
OpenCL™,
and...
./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...
8 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...
Louwrentius
Shunit2, unit testing for shell scripts
This may be of interest to people who are as stupid as I am and write
elaborate shell scripts...
over a year ago
This may be of interest to people who are as stupid as I am and write
elaborate shell scripts instead of using a proper scripting language such as
Python or Ruby. No I am deliberately not mentioning Perl here.
Anyway, testing is always an issue. With PPSS, I encountered many...
Computer Ads from...
Merry Christmas 2024
and a Happy New Year
3 weeks ago
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