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Willem's Blog
Optical vs chest strap heart rate monitors Understanding the differences in common HR monitors used in wearables, smartwatches and fitness...
over a year ago
Posts on Made of...
Reflections on software performance At this point in my career, I’ve worked on at least three projects where performance was a defining...
over a year ago
6
over a year ago
At this point in my career, I’ve worked on at least three projects where performance was a defining characteristic: Livegrep, Taktician, and Sorbet (I discussed sorbet in particular last time, and livegrep in an earlier post). I’ve also done a lot of other performance work on the...
Good Enough
TIL: Blocking Password App Autocomplete on Form Fields I wanted to disable password managers, particularly 1Password, from interacting with a username...
a year ago
7
a year ago
I wanted to disable password managers, particularly 1Password, from interacting with a username field in Contact Me. It was pretty simple in the end: <%= form.text_field :username, "data-lpignore": true, "data-1p-ignore": true %> Reference: 1Password, Lastpass.
Jonas Hietala
2015 Read Books I didn’t read a lot of books in 2015, but the books I did read were pretty damn good. Fiction A Song...
over a year ago
6
over a year ago
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good. Fiction A Song of Ice and Fire: A Dance with Dragons - George R.R. Martin Reread. A Knight of the Seven Kingdoms - Gearge R.R. Martin The Skin Collector - Jeffery Deaver Best Served Cold - Joe...
Posts on Made of...
Conkeror I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension,...
over a year ago
7
over a year ago
I’ve recently switched to Conkeror as my primary browser. It started life as a Firefox extension, but nowadays it’s a standalone app built on top of Mozilla’s xulrunner, so it uses the Gecko rendering engine. What it is, is an emacs implemented in Javascript, for the web. This...
Computer Ads from...
Intel's Inboard 386/PC Welcome to the 1990s.
2 months ago
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
7
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...
Ian's Blog
GitHub Notification Emails Hijacked to Send Malware As an open source developer I frequently get emails from GitHub, most of these emails are...
3 months ago
7
3 months ago
As an open source developer I frequently get emails from GitHub, most of these emails are notifications sent on behalf of GitHub users to let me know that somebody has interacted with something and requires my attention. Perhaps somebody has created a new issue on one of my...
Computer Ads from...
Comics from 1985/12 Australian Personal Computer Mag Some computer related levity from OZ
a month ago
Buck on Software
Winds of Change Software is maybe, just maybe about to get exciting
6 months ago
Simply Explained
Shelly 2.5 + ESPHome: potential fire hazard + fix If you have flashed your Shelly 2.5 with ESPHome, make sure to configure GPIO16. Otherwise, the pin...
over a year ago
5
over a year ago
If you have flashed your Shelly 2.5 with ESPHome, make sure to configure GPIO16. Otherwise, the pin will be short-circuited and cause the unit to heat up significantly, creating a potential fire hazard!
Jonas Hietala
No game this month Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack...
over a year ago
7
over a year ago
Well here I am in the end of the month - without a game. It’s a failure I know but once again I lack inspiration and then it’s really hard to do something. Instead I’ve been thinking of something I could do that would make me wanna code like really bad again. I’m thinking of...
Matt Blewitt
Point and Call It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter...
over a year ago
4
over a year ago
It’s 2AM. You’re paged to respond to a failing set of components that you are the Subject Matter Expert (SME) for. Sleepy, you load up the playbook for when the SplineReticulatorBlocked alert has gone off, and start executing. The Incident Commander (IC) is vaguely aware of what...
Old Vintage...
Virtualizing the 6502 on a 6502 with 6o6 (and The Incredible KIMplement goes 1.0) Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've...
8 months ago
88
8 months ago
Okay, promises, promises. Here's the first of my bucket list projects I'm completing which I've intermittently worked on for literally two decades. Now that I've finally shaken out more bugs, tuned it up and cleaned it off, it's time to let people play with the source...
Jonas Hietala
Fun or Frustration? Ludum Dare 33 One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule,...
over a year ago
4
over a year ago
One of my goals this year was to participate in a Ludum Dare. I have cleared up my schedule, negotiated with my better half and everything is set up for epicness. At first the idea was to make a game in rust, even tough I basically haven’t used it in almost a year, but when I...
Lighthouse Blog
Updates June 07
7 months ago
Matt Mullenweg
RIP Quincy Jones Quincy Jones had such an impact on the culture that it’s impossible to summarize. His discography is...
a month ago
9
a month ago
Quincy Jones had such an impact on the culture that it’s impossible to summarize. His discography is amazing. I feel so lucky to have met him in 2012 when I was much earlier in my career, and he didn’t have any reason to give me time, but he treated everyone as if they were...
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
6
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...
Arduino Blog
Introducing Arduino cores with ZephyrOS (beta): take your embedded development to the next level Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to...
a month ago
18
a month ago
Last July, when we announced the beginning of the transition from Mbed to Zephyr, we promised to release the first beta by the end of 2024. Today, we are excited to announce the first release of Arduino cores with ZephyrOS in beta! ZephyrOS is an open-source, real-time operating...
Matt Blewitt
Unreasonably Effective Patterns Much of my current job is maintaining and enhancing control planes for Heroku’s managed data...
over a year ago
7
over a year ago
Much of my current job is maintaining and enhancing control planes for Heroku’s managed data services. This post explores three patterns used to reduce operational burden and increase system safety and resiliency: state machines (and associated state-transition tables),...
Posts on Made of...
reptyr: Changing a process's controlling terminal reptyr (announced recently on this blog) takes a process that is currently running in one terminal,...
over a year ago
4
over a year ago
reptyr (announced recently on this blog) takes a process that is currently running in one terminal, and transplants it to a new terminal. reptyr comes from a proud family of similar hacks, and works in the same basic way: We use ptrace(2) to attach to a target process and force...
Louwrentius
Speeding up Linux MDADM RAID array rebuild time using bitmaps Update 2020: Please beware of the impact of random write I/O performance. Please note that with a...
over a year ago
5
over a year ago
Update 2020: Please beware of the impact of random write I/O performance. Please note that with a modern Linux distribution, bitmaps are enabled by default. They will not help speed up a rebuild after a failed drive. But it will help resync an array that got out-of-sync due to...
./techtipsy
The IPv6 situation on Docker is good now! Good news, everyone! Doing IPv6 networking stuff on Docker is actually good now! I’ve recently...
2 weeks ago
39
2 weeks ago
Good news, everyone! Doing IPv6 networking stuff on Docker is actually good now! I’ve recently started reworking my home server setup to be more IPv6 compatible, and as part of that I learned that during the summer of 2024 Docker shipped an update that eliminated a lot of the...
Birchtree
The day Birchtree grew up Today's a symbolically big day for Birchtree! After doing this site and its many offshoot projects...
3 days ago
11
3 days ago
Today's a symbolically big day for Birchtree! After doing this site and its many offshoot projects since 2010, I finally put a ring on it and registered Birchtree Productions LLC. 🎉 For you, this means basically nothing at all. Footers might be updated and I might invest in
Birchtree
Samsung will release their phone first and still gets accused of copying Apple Chance Miller on 9to5Mac: Samsung Is Already Working on Its iPhone 17 Air Copycat Apple is expected...
6 days ago
12
6 days ago
Chance Miller on 9to5Mac: Samsung Is Already Working on Its iPhone 17 Air Copycat Apple is expected to release an all-new “iPhone 17 Air” model this year, prioritizing form over function. A new supply chain report today reiterates what to expect from the iPhone 17 Air size and
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
4
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...
Vitalik Buterin's...
How do layer 2s really differ from execution sharding?
7 months ago
computers are bad
2024-07-31 just disconnect the internet So, let's say that a security vendor, we'll call them ClownStrike, accidentally takes down most of...
5 months ago
59
5 months ago
So, let's say that a security vendor, we'll call them ClownStrike, accidentally takes down most of their Windows install base with a poorly tested content update. Rough day at the office, huh? There are lots of things you could say about this, lots of reasons it happens this way,...
Home on Erik...
Simple sabotage for software CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out...
a year ago
7
a year ago
CIA produced a fantastic book during the peak of World War 2 called Simple Sabotage. It laid out various ways for infiltrators to ruin productivity of a company. Some of the advice is timeless, for instance the section about “General interference with Organizations and...
Louwrentius
Scanning many hosts in parallel with Nmap using PPSS Scanning a large number of hosts using Nmap often takes a lot of time. During this time, no output...
over a year ago
7
over a year ago
Scanning a large number of hosts using Nmap often takes a lot of time. During this time, no output is written to a file or disk. Only when Nmap is finished, is all output written to the output file. Often, I want to start processing results of hosts that have already been...
Lighthouse Blog
Updates March 01
10 months ago
Nabeel S. Qureshi
Video Games are the Future of Education The things you learn by yourself stick; the things that are “taught” to you do not stick.
over a year ago
Ken Shirriff's blog
Talking to memory: Inside the Intel 8088 processor's bus interface state machine In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM's...
8 months ago
6
8 months ago
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM's decision to use the 8088 processor in the IBM PC (1981) was a critical point in computer history, leading to the success of the x86 architecture. The designers of the IBM PC selected...
Lighthouse Blog
How to manage tags
7 months ago
Jonas Hietala
Habits to start I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or...
over a year ago
7
over a year ago
I haven’t been feeling quite as forward or as energetic lately. There are no set plans, habits or goals for this spring and I don’t have a clear vision of what to do currently but it also feels… fine? Maybe I will cruise in a lower gear for a while and rev up when my mood...
seangoedecke.com RSS...
Glue work considered harmful “Glue work” is an concept Tanya Reilly came up with in 2019. The idea is that there’s a large amount...
3 weeks ago
10
3 weeks ago
“Glue work” is an concept Tanya Reilly came up with in 2019. The idea is that there’s a large amount of unglamorous work that every team…
Simply Explained
I Built a CO2 Sensor and It Terrifies Me Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is...
over a year ago
7
over a year ago
Governments are pushing CO2 sensors to fight the COVID-19 pandemic, but proper ventilation is equally important for our health and even our cognitive performance.In this blog post we'll look at a DIY CO2 sensor: how it runs ESPHome, how it integrates with Home Assistant, how it...
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
Louwrentius
The sorry state of CoW file systems I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks...
over a year ago
6
over a year ago
I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks and that it may still be a long way off before we have something truly great. Both ZFS and BTRFS are two heroic feats of engineering, created by people who are probably ten times...
Home on Erik...
The number of letters in the word for each number Just for fun, I generated these graphs of the number of letters in the word for each number. I...
over a year ago
8
over a year ago
Just for fun, I generated these graphs of the number of letters in the word for each number. I really spent about 10 minutes on this (ok…possibly also another 40 minutes tweaking the plots): More languages!
Posts on Made of...
autocutsel As most of you probably know, X has several different mechanisms for copy-paste, used by different...
over a year ago
7
over a year ago
As most of you probably know, X has several different mechanisms for copy-paste, used by different applications in different ways. I know some people who use them deliberately, juggling two pieces of text in different clipboards at once, but for me, it’s always just been...
Posts on Made of...
Disable Transparent Hugepages tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making...
over a year ago
8
over a year ago
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making more efficient use of your processor’s memory-mapping hardware. It is enabled ("enabled=always") by default in most Linux distributions. Transparent Hugepages gives some applications...
Vitalik Buterin's...
The Revenue-Evil Curve: a different way to think about prioritizing public goods funding
over a year ago
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
7
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...
Vitalik Buterin's...
An incomplete guide to stealth addresses
a year ago
Louwrentius
My Ceph test cluster based on Raspberry Pi's and HP MicroServers Introduction To learn more about Ceph, I've build myself a Ceph Cluster based on actual hardware. In...
over a year ago
6
over a year ago
Introduction To learn more about Ceph, I've build myself a Ceph Cluster based on actual hardware. In this blogpost I'll discus the cluster in more detail and I've also included (fio) benchmark results. This is my test Ceph cluster: The cluster consists of the following...
Arduino Blog
A DIY bottle-labeling machine perfect for homebrewers While it is certainly possible (and common) to put homebrewed beer into kegs, that requires...
6 months ago
52
6 months ago
While it is certainly possible (and common) to put homebrewed beer into kegs, that requires regulated gas and large refrigeration space. A keg is also more difficult to transport and overkill if you just want to bring a few beers to a friend’s backyard BBQ. For those reasons,...
Jonas Hietala
Bullets and AI The game is still far from being an actual game but some progress has been made. I fixed most of the...
over a year ago
8
over a year ago
The game is still far from being an actual game but some progress has been made. I fixed most of the collision detection problems and I’m now trying to make some sort of AI working for the ship. It’s a bit hard and time consuming and I don’t know how to make things good. Maybe...
csvbase blog
You can't just assume UTF-8 How to infer character encodings with statistics
8 months ago
Jonas Hietala
2022 in review A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice...
a year ago
4
a year ago
A bit late, but it’s time for my yearly review. It’s something I like doing for myself and it’s nice to see that despite a tough year I’ve done some good things. 2022 Non-Geek Achievements We got our third child! This time we got a girl to complement our two boys, and I love them...
Home on Erik...
Functional programming is the libertarianism of software engineering This is a pretty dumb post, in which I argue that functional programming has a lot of the bad parts...
over a year ago
7
over a year ago
This is a pretty dumb post, in which I argue that functional programming has a lot of the bad parts of libertarianism and a lot of the good parts: Both ideologies strive to eliminate [the] state.
Louwrentius
Redhat explains why chroot is not a security feature I came across this Redhat security blog post that explains why the chroot command has it's uses, but...
over a year ago
7
over a year ago
I came across this Redhat security blog post that explains why the chroot command has it's uses, but it isn't magic security pixie dust. Running an application from within a chrooted jail or just on a well-configured system would result in the same level of security. Josh...
Push to Prod
When Things Are Slow, Look for Queues When your system is slower than desired, queues are often heavily involved. Here's an overview of...
4 months ago
7
4 months ago
When your system is slower than desired, queues are often heavily involved. Here's an overview of the most common situations.
Abort Retry Fail
The History of Windows 2.0 Success and Litigation
a year ago
./techtipsy
DIY cloud gaming: NVIDIA and Moonlight As you might have read from my previous post on this topic, I have a pretty neat “cloud” gaming...
over a year ago
34
over a year ago
As you might have read from my previous post on this topic, I have a pretty neat “cloud” gaming setup running. I have one powerful desktop PC, one virtual machine with a GPU attached to it, and client machines that can be used to stream games from. To keep things simple (and...
latest projects -...
3D Model Viewer Improvements [Software] Unlocking the embedded gimbals
a year ago
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
64
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...
Louwrentius
'lm-sensors: hardware monitoring with the w83627ehf module' I have two systems that use the w83627ehf driver for hardware monitoring. However, if this driver is...
over a year ago
7
over a year ago
I have two systems that use the w83627ehf driver for hardware monitoring. However, if this driver is installed with a regular modprobe like: modprobe w83627ehf The result will be: FATAL: Error inserting w83627ehf (/lib/modules/2.6.28-1-amd64/kernel/drivers/hwmon/w83627ehf.ko):...
Home on Erik...
I already found the best gifs Just search for “hackers gif“. There you go. Fun for your work emails for the next 500 years. From...
over a year ago
4
over a year ago
Just search for “hackers gif“. There you go. Fun for your work emails for the next 500 years. From the awesome movie Hackers. That movie together with The Warriors convinced me that I wanted to live in NYC when I was like… 14 years old.
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
7
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...
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...
2 weeks ago
17
2 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...
Matt Mullenweg
Those Other Lawsuits It’s a heavy day, and I’m sad to write this. Not sure where to start. In 2022, a lawyer recruited...
2 months ago
8
2 months ago
It’s a heavy day, and I’m sad to write this. Not sure where to start. In 2022, a lawyer recruited two people who took care of my Mom—an assistant and one of her dozen nurses—to resign and demand a million dollars each, or they would publish horrible things about her in a lawsuit....
Old Vintage...
An Apple district manager's Macintosh Portable in 1989-91 (featuring GEIS AppleLink and a look at... a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than...
10 months ago
78
10 months ago
a late prototype Macintosh Portable. But it turns out it's not merely notable for what it is than what it has on it: a beta version of System 6.0.6 (the doomed release that Apple pulled due to bugs), Apple sales databases, two online services — the maligned Mac Prodigy client,...
computers are bad
2025-01-05 pairs not taken So we all know about twisted-pair ethernet, huh? I get a little frustrated with a lot of histories...
5 days ago
19
5 days ago
So we all know about twisted-pair ethernet, huh? I get a little frustrated with a lot of histories of the topic, like the recent neil breen^w^wserial port video, because they often fail to address some obvious questions about the origin of twisted-pair network cabling. Well, I...
Home on Erik...
The hardest challenge about becoming a manager Note: this post is full of pseudo-psychology and highly speculative content. Like most fun stuff! I...
over a year ago
4
over a year ago
Note: this post is full of pseudo-psychology and highly speculative content. Like most fun stuff! I became a manager back in 2009. Being a developer is fun. You have this very tangible way to measure yourself.
Arduino Blog
Light up the holiday season, with a new Plug and Make Kit tutorial! Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make...
a month ago
26
a month ago
Looking for a fun and creative way to brighten up the holiday season? With the Arduino Plug and Make Kit, you can build an interactive LED light installation that reacts when someone walks by – perfect for spreading cheer and adding a high-tech twist to your decorations. This...
Willem's Blog
Snake '97 High Scores Happily accepting the invitation to attend an exhibition of Snake 97 art works in Antwerp. This was...
over a year ago
4
over a year ago
Happily accepting the invitation to attend an exhibition of Snake 97 art works in Antwerp. This was totally WOW!
Arduino Blog
A riddle wrapped in an enigma… made easy, with Arduino Plug and Make Kit The Arduino Plug and Make Kit was designed to open up infinite possibilities, breaking down the idea...
a month ago
36
a month ago
The Arduino Plug and Make Kit was designed to open up infinite possibilities, breaking down the idea that technology is a “black box” reserved for experts. With its snap-together system, this kit gives everyone – beginners and seasoned makers alike – the power to create and...
Home on Erik...
Why conversion matters: a toy model There are often close relationships between top level business metrics. For instance, it's well...
over a year ago
7
over a year ago
There are often close relationships between top level business metrics. For instance, it's well known that retention has a super strong impact on the valuation of a subscription business. Or that the % of occupied seats is super important for an airline.
Vitalik Buterin's...
Multidimensional gas pricing
8 months ago
Matt Mullenweg
On with Theo / T3.gg On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled...
3 months ago
8
3 months ago
On Thursday, a prominent developer, YouTuber, Twitch streamer, and journalist posted a video titled This might be the end of WordPress. It was very harsh. In that video you’ll hear him say about me, “he’s a chronic hater” (7:55), “seems like he’s been a pretty petty bastard for a...
Arduino Blog
This desk lamp automatically adjusts its brightness using AI on an Arduino UNO When you hear about all of the amazing things being accomplished with artificial intelligence today,...
7 months ago
41
7 months ago
When you hear about all of the amazing things being accomplished with artificial intelligence today, you probably assume that they require a massive amount of processing power. And while that is often true, there are machine learning models that can run on the edge — including on...
Jonas Hietala
Changes A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but...
over a year ago
7
over a year ago
A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but there are things I’d like to change after the exam period this week. Program more! nothing since christmas or someting. I need to finish: Ada project for school. Can’t believe I...
latest projects -...
Motorised Camera Slider [Hardware] Simple smooth motor mod
6 months ago
./techtipsy
Whacky setups: seedbox on a wall The Orange Pi Zero is one hell of an SBC. It has served as a Wi-Fi access point for months without...
over a year ago
27
over a year ago
The Orange Pi Zero is one hell of an SBC. It has served as a Wi-Fi access point for months without issues and as a testbed for playing around with MySQL. I wanted it to be a useful device again, but had trouble finding an use case for it due to its hardware limitations. After...
./techtipsy
My self-hosting setup has an UPS now, here's my experience with it I changed my setup again. I’m now the proud owner of an APC Smart-UPS 750. Why? Because I got it as...
over a year ago
47
over a year ago
I changed my setup again. I’m now the proud owner of an APC Smart-UPS 750. Why? Because I got it as a gift, and I have never actually had an UPS before, so it makes for a good introduction to this world. Overview My setup is quite basic: everything that I have on my table...
Vitalik Buterin's...
STARKs, Part II: Thank Goodness It's FRI-day
over a year ago
Home on Erik...
More Luigi! Elias Freider just talked about Luigi at PyData 2013: The presentation above is much better than one...
over a year ago
6
over a year ago
Elias Freider just talked about Luigi at PyData 2013: The presentation above is much better than one I put together a few weeks ago. In case anyone is interested I'll include it too:
Notes on software...
Experimenting with column- and row-oriented datastructures This is an external post of mine. Click here if you are not redirected.
over a year ago
Notes on software...
Exploring PL/pgSQL: Strings, arrays, recursion, and parsing JSON Next in exploring PL/pgSQL: Implementing a Forth-like interpreter PostgreSQL comes with a...
over a year ago
7
over a year ago
Next in exploring PL/pgSQL: Implementing a Forth-like interpreter PostgreSQL comes with a builtin imperative programming language called PL/pgSQL. I used to think this language was scary because it has a bit more adornment than your usual language does. But looking deeper,...
Willem's Blog
Write your own words Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for...
2 months ago
11
2 months ago
Why not to use AI for writing - a blog post on the underestimated long term costs of AI tools for human creativity.
Birchtree
Matt is a Mean Guy (hey!) Matt felt like bringing an intentionally controversial topic, Niléane refuses to admit she's created...
4 weeks ago
11
4 weeks ago
Matt felt like bringing an intentionally controversial topic, Niléane refuses to admit she's created a sticky note-based task manager, and everyone gives the iPad some much needed love. Or watch it on YouTube. Weekly Topics Raycast CleanShot X Final Cut Pro Google...
Willem's Blog
Free from the iCloud: Escaping Apple Photos Recently I freed myself from Apple Photos, using free software to manage my photo library. Read...
over a year ago
4
over a year ago
Recently I freed myself from Apple Photos, using free software to manage my photo library. Read along to find out what software I use and how to make it play nice with your devices.
Louwrentius
ZFS on Linux: monitor cache hit ratio I'm performing some FIO random read 4k I/O benchmarks on a ZFS file system. So since I didn't trust...
over a year ago
4
over a year ago
I'm performing some FIO random read 4k I/O benchmarks on a ZFS file system. So since I didn't trust the numbers I got, I wanted to know how many of the IOPs I got were due to cache hits rather than disk hits. This is why I wrote a small shell script called archhitratio. Sample...
Posts on Made of...
CVE-2007-4573: The Anatomy of a Kernel Exploit CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It...
over a year ago
6
over a year ago
CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It was a local privilege-escalation vulnerability on all x86_64 kernels prior to v2.6.22.7. It’s very simple to understand with a little bit of background, and the exploit is...
Odds and Ends of...
The social justice case for self-driving cars Abundant mobility should be a moral crusade
3 days ago
./techtipsy
How to mess up a simple ThinkPad X230 BIOS flash and how to recover from it Background I have a Lenovo ThinkPad X230. It’s a small and good laptop that I’ve used as my main...
over a year ago
21
over a year ago
Background I have a Lenovo ThinkPad X230. It’s a small and good laptop that I’ve used as my main laptop and a server as well. A couple of years ago I messed around with flashing alternative BIOS implementations on the X230, such as the skulls project, which made installing...
Jonas Hietala
Calling closures in a Vec In rust one might want to have a list of closures, for example as a list of callbacks. let mut fs:...
over a year ago
7
over a year ago
In rust one might want to have a list of closures, for example as a list of callbacks. let mut fs: Vec<||> = Vec::new(); fs.push(|| { println!("imma firing my lazer"); }); for f in fs.iter() { f(); // error: expected function but found `&||` }; Maybe if we borrow...
Home on Erik...
Presentation about Luigi I like the editing!
over a year ago
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
5
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",),...
Jonas Hietala
The T-34 keyboard layout A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with...
over a year ago
7
over a year ago
A couple of months ago I started looking into ergonomical keyboards; mainly split keyboards with much fewer keys, like the 36-key Gergoplex and the 44-key Kyria. I may write another post about the reasons why, but long story short I started getting pain in my thumbs, fingers,...
Willem's Blog
And... there is light! Discover how one cyclist's quest for the perfect lighting solution led to a custom installation of...
a year ago
4
a year ago
Discover how one cyclist's quest for the perfect lighting solution led to a custom installation of dynamo powered lights, ensuring a bright and hassle-free ride on the darkest roads.
Louwrentius
'Improved' image gallery for Blogofile This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports...
over a year ago
7
over a year ago
This blog is just static HTML pages that are generated using Blogofile. The Blogofile website sports a small image gallery that has been written to illustrate how to create your own 'controllers' or Blogofile plugins. My Python skills are horrible buy I managed to improve a bit...
Construction Physics
What Learning by Doing Looks Like The evolution of polycrystalline diamond drill bits
4 weeks ago
Jonas Hietala
Sat-E So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme...
over a year ago
6
over a year ago
So I entered Ludum Dare 22 this weekend as a preamble for tomorrow’s linear algebra exam. The theme this time around was Alone and the game I came up with is about a lonely satellite in space, kinda like Wall-E. Sat-E Instructions Collect junk and other items for you to buy...
Christian Selig
My little Apple Vision Pro stand I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s...
10 months ago
81
10 months ago
I want somewhere to put my Vision Pro when not in use. Many people use the original box, and there’s beautiful stands that exist out there, but I was looking for something more compact and vertical so it would take up less room on my desk. So I opened Fusion 360 (which I am still...
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
7
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.
Neil Madden
A few clarifications about CVE-2022-21449 Just a few quick notes/updates to correct some potentially inaccurate statements that are floating...
over a year ago
6
over a year ago
Just a few quick notes/updates to correct some potentially inaccurate statements that are floating around on Reddit/Twitter etc: The bug only impacts Java 15 and above. The original advisory from Oracle incorrectly listed earlier versions (like 7, 8 and 11) as being impacted....
Home on Erik...
Nearest neighbors and vector models – part 2 – algorithms and data structures This is a blog post rewritten from a presentation at NYC Machine Learning on Sep 17. It covers a...
over a year ago
7
over a year ago
This is a blog post rewritten from a presentation at NYC Machine Learning on Sep 17. It covers a library called Annoy that I have built that helps you do nearest neighbor queries in high dimensional spaces.
Engineers Need Art
Offline Advocate Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of...
a month ago
47
a month ago
Digital hoarding as a check against the ephemeral nature of the internet ... and maybe some peace of mind.
Push to Prod
How We Built a Self-Healing System to Survive a Terrifying Concurrency Bug At Netflix Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's...
4 months ago
Jonas Hietala
Done this, done that. What now? Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and...
over a year ago
4
over a year ago
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and starting some new courses in school. I’m liking my choice of Computer Science more and more. Data structures and Algorithms was a super fun course, I actually ordered a new book...
Jonas Hietala
My first rust Contribution The problem with open-source for most people isn’t writing code, but it’s all the other things. How...
over a year ago
7
over a year ago
The problem with open-source for most people isn’t writing code, but it’s all the other things. How shall I push my changes? How do I handle git? What should I do? I was the same and I actually dreaded my awesome summer job, just a little bit, because now I’m supposed to...
Engineers Need Art
Casady & Greene Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software...
4 months ago
46
4 months ago
Remembering Casady & Greene and the excitement (and closing) of an era of Macintosh software publishing.
Bryan Braun - Blog
Links #10 How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast...
5 months ago
7
5 months ago
How to Get on a Podcast - This is a short and invaluable post for anyone who wants to be a podcast guest. It puts you in the shoes of a podcaster, showing you what they need, and how you can be a “sure thing” for them. As usual, there are no short cuts. You gotta do the work! A...
Arduino Blog
Massive tentacle robot draws massive attention at EMF Camp Most of the robots we feature only require a single Arduino board, because one Arduino can control...
6 months ago
54
6 months ago
Most of the robots we feature only require a single Arduino board, because one Arduino can control several motors and monitor a bunch of sensors. But what if the robot is enormous and the motors are far apart? James Bruton found himself in that situation when he constructed this...
Posts on Made of...
How is duct tape like the force? I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con...
over a year ago
4
over a year ago
I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con again, I needed to do something in terms of costuming, and I wanted it to be something unique – I wasn’t going to come anywhere near as epic as some of the costumes people pull...
Jonas Hietala
Bitcoin Cash needs a Specification I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a...
over a year ago
4
over a year ago
I’m not a Bitcoin developer, I’m just some guy looking in from the outside. Lately there’s been a bunch of heated debates between the different Bitcoin Cash developer teams. Something that stood out from all the noise was problems with communications and a lack of specification...
Computer Ads from...
Lintek Computer Accessories' Paper Tamer Restore Order (to your printer)
9 months ago
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
10
2 months ago
A quick explanation of the Okta AD/LDAP DelAuth bug that was being shared around, and the importance of sensible defaults.
Notes on software...
First few hurdles writing a Scheme interpreter I started working on BSDScheme last October, inspired to get back into language implementation after...
over a year ago
7
over a year ago
I started working on BSDScheme last October, inspired to get back into language implementation after my coworker built bshift, a compiler for a C-like language. BSDScheme is an interpreter for a (currently small subset of) Scheme written in D. It implements a few substantial...
Applied Cartography
Incumbency Andrew Rea with an interesting and increasingly familiar take about how AI will disrupt...
6 months ago
6
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...
Louwrentius
Blu Ray is dead HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical media is dead....
over a year ago
6
over a year ago
HD-DVD may be dead, but Blu Ray is just as dead. The whole concept of optical media is dead. Honestly, who is still burning CD's or DVD's nowadays? (If you are, why for Christ sake? I can't think of a single good reason) And at 10 euros ($100) for a single Blu Ray disk, you must...
./techtipsy
VR, VFIO and how latency ruined everything I’ve been running my all-in-one PC for a while now. It was my desktop, my NAS and my gaming...
over a year ago
42
over a year ago
I’ve been running my all-in-one PC for a while now. It was my desktop, my NAS and my gaming PC. However, during the next couple of months I kept hitting small bumps along the road. Most of these were quite straightforward to fix, but there is one that finally convinced me to go...
Jonas Hietala
My Minions So I think I made it! It became a pretty different game from what I set out to create, but I’m glad...
over a year ago
4
over a year ago
So I think I made it! It became a pretty different game from what I set out to create, but I’m glad with how it turned out. My Minions Instructions Build a pathway and then place objects or release minions on it, everything must be on a path. Place musical objects or make the...
Arduino Blog
Can this tiny lawn mower robot cut it in the real world? We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down...
6 months ago
46
6 months ago
We’re finally starting to see robotic lawn mowers gain a little bit of traction as prices come down and consumer trust goes up. They work a bit like Roomba vacuums and pathfinding sophistication varies from one model to the next. But even the most basic models are still a lot...
Louwrentius
FFmpeg performance on a Core i7 920 @ 3.6 Ghz The system i'm running is a Core i7 920 @ 3.6 Ghz. I am transcoding a DVD (Grave Of The Fire Flies)...
over a year ago
6
over a year ago
The system i'm running is a Core i7 920 @ 3.6 Ghz. I am transcoding a DVD (Grave Of The Fire Flies) to iPod format (640x480 x264). Thread support is enabled, to FFmpeg uses about 250% CPU. That's 2.5 of the 4 cores available. If possible, I would have liked to see it use all four...
latest projects -...
Light comms on the 003 [Hardware] Tiny terrahertz transmissions
5 months ago
Notes on software...
Implementing a simple jq clone in Go, and basics of Go memory profiling In this post we'll build a basic jq clone in Go. It will only be able to pull a single path out of...
over a year ago
7
over a year ago
In this post we'll build a basic jq clone in Go. It will only be able to pull a single path out of each object it reads. It won't be able to do filters, mapping, etc. $ cat large-file.json | head -n2 | ./jqgo...
Neil Madden
How do you use a bearer URL? In “Towards a standard for bearer token URLs”, I described a URL scheme that can be safely used to...
over a year ago
6
over a year ago
In “Towards a standard for bearer token URLs”, I described a URL scheme that can be safely used to incorporate a bearer token (such as an OAuth access token) into a URL. That blog post concentrated on the technical details of how that would work and the security properties of the...
Posts on Made of...
Efficiency trades off against resiliency What’s the “right” level of CPU utilization for a server? If you look at a monitoring dashboard from...
a year ago
4
a year ago
What’s the “right” level of CPU utilization for a server? If you look at a monitoring dashboard from a well-designed and well-run service, what CPU utilization should we hope to see, averaged over a day or two? It’s a very general question, and it’s not clear it should have a...
computers are bad
2024-04-26 microsoft at work I haven't written anything for a bit. I'm not apologizing, because y'all don't pay me enough to...
8 months ago
95
8 months ago
I haven't written anything for a bit. I'm not apologizing, because y'all don't pay me enough to apologize, but I do feel a little bad. Part of it is just that I've been busy, with work and travel and events. Part of it is that I've embarked on a couple of writing projects only to...
Louwrentius
My home lab server with 20 cores / 40 threads and 128 GB memory Update fall 2024 I have decided to decomission this machine and it is no longer in use. As of this...
over a year ago
7
over a year ago
Update fall 2024 I have decided to decomission this machine and it is no longer in use. As of this moment, it's replaced by a cluster of four 1L PCs which use about a third of the idle power usage and boot within 20 seconds. The single-core performance of these low-power 1L PCs...
Arduino Blog
How to customize your Arduino Cloud IoT dashboards on the go The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage...
3 months ago
30
3 months ago
The Arduino Cloud has long been a trusted platform for makers, engineers, and developers to manage their IoT projects with ease. From tracking sensor data to automating smart devices, the cloud enables seamless connectivity. Complementing this, the Arduino IoT Remote mobile app...
Jonas Hietala
Christmas break So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and...
over a year ago
5
over a year ago
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and I really enjoy studying here. We had lisp the whole time which is a pretty sweet little language and if you haven’t, give it a shot. Then we had math and I do like math, although I...
Computer Ads from...
Suture Software's Bludgeons 'n' Braggarts We very simply give you what you've been asking for -- we give you BLOOD
10 months ago
computers are bad
2023-02-07 secret government telephone numbers Very nearly a year ago, I wrote a popular article about secret military telephone buttons. To be...
a year ago
60
a year ago
Very nearly a year ago, I wrote a popular article about secret military telephone buttons. To be clear, the "secret" here was a joke and these buttons are in fact well documented. The buttons I was talking about were the AUTOVON call precedence buttons, used for a five-level...
Jonas Hietala
A Simple Thought I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about...
over a year ago
2
over a year ago
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about that yesterday and I was very, very nervous. The preparations weren’t that hard, but they where very bothersome. Converting the instructions to binary/hex by hand is never nice....
csvbase blog
From Shell to Excel - with a little bit of HTTPS Write once, read everywhere
5 months ago
Vitalik Buterin's...
Situazioni di collusione
over a year ago
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
Willem's Blog
Half Marathon Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness -...
9 months ago
6
9 months ago
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness - read about my experiences!
GitButler
The Future of Open Source A GitHub founder's musings on the past, present and future of large groups of people collaborating...
5 months ago
5
5 months ago
A GitHub founder's musings on the past, present and future of large groups of people collaborating on software in awesome ways.
Home on Erik...
Home
over a year ago
Willem's Blog
Abandoning my own tablet OS After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro...
over a year ago
4
over a year ago
After a year of experimenting with Debian GNU/Linux on a Surface Go 2 I have returned to iPad Pro and the Mac.
Vitalik Buterin's...
Crypto Cities
over a year ago
Good Enough
TIL: Turbo Stream and personalised content Hotwire and Turbo are great for very quickly and easily adding real-time updating of webpages...
a year ago
6
a year ago
Hotwire and Turbo are great for very quickly and easily adding real-time updating of webpages without requiring the browser to reload the whole page. But if the information you want to stream back from your server to the client has anything specific to the current user — like...
Notes on software...
How to get better at recursion tldr; reimplement standard library functions in your favorite language without loops. Background For...
over a year ago
5
over a year ago
tldr; reimplement standard library functions in your favorite language without loops. Background For a few years after college I spent a lot of free time doing projects in Standard ML and Scheme. As a result I got really comfortable doing recursion. The two big reasons for this...
Jonas Hietala
Hearthstone on Wine I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play...
over a year ago
4
over a year ago
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play it. It didn’t work in vanilla wine, with a “time out error”, but I found a bug report which makes it work. Here’s a short summary: Get wine source from git. My version was...
./techtipsy
How to build a fleet of networked offsite backups using Linux, WireGuard and rsync Just like most people out there, I have some files that are irreplaceable, such as cat pictures. At...
a month ago
35
a month ago
Just like most people out there, I have some files that are irreplaceable, such as cat pictures. At one point I had a few single-board computers sitting idle, namely the Orange Pi Zero and the LattePanda V1, and a few 1TB SSD-s. I hate idle hardware, so I did the most sensible...
Good Enough
Good Enough Marketing: The Preparation We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But...
a year ago
4
a year ago
We have a couple of exciting projects—Guestbook! Yay.Boo!—that we want to share with the world. But that’s a difficult task for us because, honestly, we’re terrible not good at self-promotion. We’d rather spend time making things than talking about the things we’ve made. We’d...
Louwrentius
An ode to the 10,000 RPM Western Digital (Veloci)Raptor Introduction Back in 2004, I visited a now bankrupt Dutch computer store called MyCom1, located at...
over a year ago
4
over a year ago
Introduction Back in 2004, I visited a now bankrupt Dutch computer store called MyCom1, located at the Kinkerstraat in Amsterdam. I was there to buy a Western Digital Raptor model WD740, with 74 GB of capacity, running at 10,000 RPM. When I bought this drive, we were still in...
Jonas Hietala
Focusing Attention: Programming These last two weeks have been a small attempt at clearing up my head a bit. I have far too many...
over a year ago
4
over a year ago
These last two weeks have been a small attempt at clearing up my head a bit. I have far too many things I’d like to do and even if it’s not possible to do them all at once it didn’t stop me from thinking of them. One minute it’s that and the other it’s something completely...
./techtipsy
Stupid project ideas: the War Machine LinusTechTips has some pretty great videos about building insane PC and server setups, such...
over a year ago
33
over a year ago
LinusTechTips has some pretty great videos about building insane PC and server setups, such as: unboxing and deploying petabytes of storage 7 gamers, 1 CPU building sleeper PC-s testing sketchy CPU-s opening up a 100TB SSD I have the ideas, but not the budget of LinusTechTips, so...
Arduino Blog
Ride safer with these DIY bicycle lights Many people around the world live in cities designed for cars, with bicycle use being a distant...
5 months ago
43
5 months ago
Many people around the world live in cities designed for cars, with bicycle use being a distant afterthought. That makes cycling dangerous and lights can do a lot to make riding safer. That’s why Giovanni Aggiustatutto designed this DIY system that includes headlights, a...
./techtipsy
TOMO M4: probably the coolest power bank I've owned A friend once showed me a power bank that was so cool that I had to get one myself. Ended up getting...
a year ago
42
a year ago
A friend once showed me a power bank that was so cool that I had to get one myself. Ended up getting two, and here’s why. This post is not sponsored. Removable batteries Let’s start with the feature that I appreciate the most: removable batteries! The TOMO M4 accepts up to 4...
Applied Cartography
How Buttondown uses HAProxy There are few technical decisions I regret more with Buttondown than the decision to combine the...
4 months ago
7
4 months ago
There are few technical decisions I regret more with Buttondown than the decision to combine the author-facing app, the subscriber-facing app, and the marketing site all under a single domain. Most technical decisions are reversible with sufficient grit and dedication; this one...
./techtipsy
The Fedora Linux starter pack: everything you need for a smooth experience I like Fedora Linux. It’s the Linux distro that stopped my habit of distro-hopping. Big deal? Ooh,...
2 months ago
53
2 months ago
I like Fedora Linux. It’s the Linux distro that stopped my habit of distro-hopping. Big deal? Ooh, big deal! It’s stable in day-to-day use, ships with up-to-date software, and the software selection is adequate out of the box. It also ships with a fresh Linux kernel version1,...
Notes on software...
Generating a full-stack application from a database DBCore can now generate a TypeScript/React CRUD UI that is automatically hooked up to the generated...
over a year ago
5
over a year ago
DBCore can now generate a TypeScript/React CRUD UI that is automatically hooked up to the generated REST API (in Go). The UI has full support for login, viewing (and filtering), editing, and creating database entities. PostgreSQL, SQLite and MySQL are supported. How to use? The...
Louwrentius
Don't use cloud services if you care about secrecy of your data When you use cloud services, you are storing your data on other people's hard drives. The moment you...
over a year ago
4
over a year ago
When you use cloud services, you are storing your data on other people's hard drives. The moment you put your data within a cloud service, that data is no longer under your control. You don't know who will access that data. Secrecy is lost. Instead of using services like Gmail...
Louwrentius
Howto get the hard disk size under Linux? A: There is no single tool for this job, but it seems that Fdisk is just fine: server:~# fdisk -l 2>...
over a year ago
4
over a year ago
A: There is no single tool for this job, but it seems that Fdisk is just fine: server:~# fdisk -l 2> /dev/null | grep Disk | grep -v identifier Disk /dev/sda: 500.0 GB, 500028145664 bytes Disk /dev/sdb: 500.0 GB, 500028145664 bytes Disk /dev/sdc: 1000.1 GB, 1000123400192...
Home on Erik...
3D in D3 I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for...
over a year ago
4
over a year ago
I have spent some time lately with D3. It's a lot of fun to build interactive graphs. See for instance this demo (will provide a longer writeup soon). D3 doesn't have support for 3D but you can do projections into 2D pretty easily.
Notes on software...
Unit testing C code with gtest This post covers building and testing a minimal, but still useful, C project. We'll use...
over a year ago
7
over a year ago
This post covers building and testing a minimal, but still useful, C project. We'll use Google's gtest and CMake for testing C code. This will serve as a foundation for some upcoming posts/projects on programming Linux, userland networking and interpreters. test/CMakeLists.txt...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 2: The Surge
2 months ago
Notes on software...
Transparency and communication on small teams I saw a post on dev.to that talks about dysfunctional teams. This is a response that...
over a year ago
6
over a year ago
I saw a post on dev.to that talks about dysfunctional teams. This is a response that focuses specifically on how to prevent burnout from overworking. This is aimed at senior/lead engineers and engineering/project managers -- because everyone in a leadership role is responsible...
Applied Cartography
buttondown.com/alternatives Some kind words from Chris Krycho on Buttondown's Alternatives page: This is how I want all my tools...
3 weeks ago
20
3 weeks ago
Some kind words from Chris Krycho on Buttondown's Alternatives page: This is how I want all my tools to be. There is a ton of room in these markets for healthy and friendly competition — and no need at all for winner-take-all or monopolist attitudes. First off — credit where it's...
Louwrentius
How to run victron veconfigure on a mac Introduction Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool....
10 months ago
7
10 months ago
Introduction Victron Multiplus-II inverter/charges are configured with the veconfigure1 tool. Unforntunately this is a Windows-only tool, but there is still a way for Apple users to run this tool without any problems. Tip: if you've never worked with the Terminal app on MacOS, it...
Notes on software...
Writing an x86 emulator from scratch in JavaScript: 1. a stack and register machine Better yet, take a look at this post walking through emulating x86 ELF binaries in Go: Emulating...
over a year ago
7
over a year ago
Better yet, take a look at this post walking through emulating x86 ELF binaries in Go: Emulating linux/AMD64 userland: interpreting an ELF binary 2. system calls In this post we'll create a small virtual machine in JavaScript and use it to run a simple C program compiled...
seangoedecke.com RSS...
What can strong engineers do that weak engineers can't? Right now people are blowing up on Twitter about whether the USA needs to import top talent from...
2 weeks ago
21
2 weeks ago
Right now people are blowing up on Twitter about whether the USA needs to import top talent from other countries, and if that means that…
Vitalik Buterin's...
What do I think about network states?
over a year ago
Louwrentius
The security risk of vendor-supplied default SSL certificates Often, software comes supplied with some default SSL certificate, for testing purposes, such as...
over a year ago
6
over a year ago
Often, software comes supplied with some default SSL certificate, for testing purposes, such as those 'snake oil' certificates (they are called snake oil certificates for a reason). In practice, I often encounter usage of such certificates. People may seem to think that as long...
Louwrentius
ZFS: resilver performance of various RAID schemas When building your own DIY home NAS, it is important that you simulate and test drive failures...
over a year ago
4
over a year ago
When building your own DIY home NAS, it is important that you simulate and test drive failures before you put your important data on it. It makes sense to know what to do in case a drive needs to be replaced. I also recommend putting a substantial amount of data on your NAS and...
Louwrentius
Benchmarking cheap SSDs for fun, no profit (be warned) The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now...
a year ago
5
a year ago
The price of Solid-state drives (SSDs) has dropped significantly over the last few years. It's now possible to buy a 1TB solid-state drive for less than €60. However, at such low price points, there is a catch. Although cheap SSDs do perform fine regarding reads, sustained write...
Home on Erik...
Open source
over a year ago
computers are bad
2023-11-04 nuclear safety Nuclear weapons are complex in many ways. The basic problem of achieving criticality is difficult on...
a year ago
109
a year ago
Nuclear weapons are complex in many ways. The basic problem of achieving criticality is difficult on its own, but deploying nuclear weapons as operational military assets involves yet more challenges. Nuclear weapons must be safe and reliable, even with the rough handling and...
Willem's Blog
Being a volunteer in Amsterdam-Zuidoost About my work as volunteer in the local community center in Amsterdam Zuidoost
over a year ago
Willem's Blog
Lunch by plane This week I went out for lunch by plane from Hilversum to Texel with a good buddy of mine.
over a year ago
Push to Prod
Making an AB Test Allocator 20x Faster Using Non-blocking IO Many moons ago, I inherited a cross-company AB test and had to figure out how to allocate it...
2 months ago
./techtipsy
Fairphone 5: my heavily biased overview after 58 days of use (and counting) After months of contemplating I finally pulled the trigger and got myself a Fairphone 5. The...
10 months ago
125
10 months ago
After months of contemplating I finally pulled the trigger and got myself a Fairphone 5. The fact that iPhone X stopped receiving major iOS updates certainly helped make that decision. “But why? My Xiaomi/Oneplus/Samsung/other glued-together device is like so much cheaper and...
Home on Erik...
Approximate nearest news As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm...
over a year ago
6
over a year ago
As you may know, one of my (very geeky) interests is Approximate nearest neigbor methods, and I'm the author of a Python package called Annoy. I've also built a benchmark suite called ann-benchmarks to compare different packages.
Computer Ads from...
Bomb Squad Peripherals' BLOWGUN It Could Have Been a Lot Worse - His Data is BLOWGUN Protected!
6 months ago
lcamtuf’s thing
Random objects: Guycot & Jarre Early repeating handguns, or another unnecessary excursion into the bowels of history.
6 months ago
Vitalik Buterin's...
A Quick Garbled Circuits Primer
over a year ago
Odds and Ends of...
Christmas Mailbag! Is Elon Musk actually smart? Will HS2 ever be properly finished? Do I like Dominic Cummings? And...
3 weeks ago
Vitalik Buterin's...
[Mirror] Quadratic Arithmetic Programs: from Zero to Hero
over a year ago
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
7
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...
Jonas Hietala
February gets Themed: Rejection The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t...
over a year ago
4
over a year ago
The Experimental Gameplay Project has announced their next theme - and shame on me if I wouldn’t follow suite! With valentine coming up I might just have found a pretty nice idea, just now, writing this… Booyah!!
Matt Mullenweg
Automattic Alignment Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine...
3 months ago
11
3 months ago
Winston Churchill said, “Never let a good crisis go to waste.” Since I last blogged here, WP Engine filed a meritless lawsuit and Automattic responded, and there’s been a hurricane of public activity and press. Inside of Automattic, there’s been a parallel debate and process....
GitButler
Fixing up Git with Autosquash How can you amend a series of commits automatically to keep a clean history? Let's take a look at...
10 months ago
5
10 months ago
How can you amend a series of commits automatically to keep a clean history? Let's take a look at git autosquash.
Notes on software...
Be someone who does things I wrote last month that what you want to do is one of the most useful motivations in life. I want to...
3 months ago
7
3 months ago
I wrote last month that what you want to do is one of the most useful motivations in life. I want to follow that up by saying that the only thing more important than wanting to do something is to actually do something. The most valuable trait you can develop for yourself is to...
computers are bad
2023-09-03 plastic money You will sometimes hear someone say, in a loose conceptual sense, that credit cards have money in...
a year ago
104
a year ago
You will sometimes hear someone say, in a loose conceptual sense, that credit cards have money in them. Of course we know that that isn't the case; our modern plastic card payment network relies on online transactions where the balance tracking and authorization decisions happen...
somenice
Cake Hole Whistler Mountain Often inviting. This terrain just off the Whistler peak road can be an enticing sun-swept run of...
a month ago
33
a month ago
Often inviting. This terrain just off the Whistler peak road can be an enticing sun-swept run of untouched powder.Understanding that you need to come back up the same way you go down, can make you question if it’s really worth it.Know before you go. Cake Hole by Andrew...
Posts on Made of...
A Go/C Polyglot Writing a Go/C polyglot Someone on a Slack I’m on recently raised the question of how you might...
over a year ago
7
over a year ago
Writing a Go/C polyglot Someone on a Slack I’m on recently raised the question of how you might write a source file that’s both valid C and Go, commenting that it wasn’t immediately obvious if this was even possible. I got nerdsniped, and succeeded in producing one, which you can...
Louwrentius
The iPhone, iPad and iOS are powering a revolution Most people just don't understand computers. Are these people dumb? Some may be dumb, but the people...
over a year ago
4
over a year ago
Most people just don't understand computers. Are these people dumb? Some may be dumb, but the people who make them are maybe even dumber. Because they can't seem to figure out how to create a computer that the majority of people understand. When the original macintosh arrived at...
Old Vintage...
Thou shalt follow these Vintage Computing Commandments Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote...
11 months ago
71
11 months ago
Thou shalt check voltage and polarity on new-to-thee power supplies, or thy machines shall be smote and release smoke. This is sometimes very hard to judge without a load, but they should be somewhere in the ballpark, verily, and you should get in the habit of checking any new...
Old Vintage...
xa (xa65) 2.4.0 - finally xa (xa65) 2.4.0 is the newest release of André Fachat's fast and portable two-pass 6502/65816...
a year ago
65
a year ago
xa (xa65) 2.4.0 is the newest release of André Fachat's fast and portable two-pass 6502/65816 crossassembler; yours truly is the current maintainer and I just punched "live" on it tonight. It runs on Un*xy things and Windows (with Cygwin or msys2 or similar), and probably other...
Notes on software...
Exploring PL/pgSQL part two: implementing a Forth-like interpreter Previously in exploring PL/pgSQL: Strings, arrays, recursion and parsing JSON In my last post I...
over a year ago
6
over a year ago
Previously in exploring PL/pgSQL: Strings, arrays, recursion and parsing JSON In my last post I walked through the basics of PL/pgSQL, the embedded procedural language inside of PostgreSQL. It covered simple functions, recursions and parsing. But there was something very...
Louwrentius
Storage and I/O: reads vs. writes There is a fundamental difference between a read operation and a write operation. Storage can lie...
over a year ago
7
over a year ago
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned. About...
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
11
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...
./techtipsy
About the time my ThinkPad T430 ran with an external GPU The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like a tank. I got mine in...
6 months ago
85
6 months ago
The ThinkPad T430 is not a remarkable laptop. It’s thick, bulky and built like a tank. I got mine in 2016 when the first university scholarship money dropped, and it’s still my backup laptop of choice. Around 2017 I did something every reasonable poor computer science...
Applied Cartography
11ty .njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a...
10 months ago
4
10 months ago
.njk as the default templating language is an odd choice, and I find myself stubbing my toe on it a good amount. Maybe that's a me thing! It is extremely fast. This site has around 2300 pages; Eleventy is compiling it in around two seconds. The extensibility ergonomics are...
Good Enough
How We Built Unique Social Preview Images for Pika One of the goals of Pika, the happy blogging software that we recently launched, is to help you find...
11 months ago
6
11 months ago
One of the goals of Pika, the happy blogging software that we recently launched, is to help you find your own place on the internet. Along with a nice place on the internet, when you share links to your blog we want them to represent your internet home, which you've likely taken...
Willem's Blog
Supernova E3 Pro 2 dynamo powered headlight
over a year ago
Bryan Braun - Blog
Before you buy a domain name, first check to see if it’s haunted In mid-2022 I bought a new domain name. The name was musicbox.fun. I got it for a side-project, an...
2 months ago
10
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...
Vitalik Buterin's...
Against choosing your political allegiances based on who is "pro-crypto"
5 months ago
Willem's Blog
Whoop strap review: 24/7 wearable sensor
over a year ago
Matt Mullenweg
CNBC on WP Engine Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP...
3 months ago
8
3 months ago
Ari Levy at CNBC has a great article covering the battle between WordPress and Silver Lake / WP Engine: Why WordPress [co-]founder Matt Mullenweg has gone ‘nuclear’ against tech investing giant Silver Lake.
Louwrentius
24 TB based on Norco RPC-4020 and Linux Software RAID Just a quick link: Some person build basically the same setup, including identical...
over a year ago
6
over a year ago
Just a quick link: Some person build basically the same setup, including identical controller, providing 28 TB of storage: Take a look here The main difference is that this person uses 1.5 TB disk, thus achieving more storage.
Home on Erik...
Luigi talk tomorrow At NYC Data Science meetup! Unfortunately the space is full but the talk will be livestreamed –...
over a year ago
6
over a year ago
At NYC Data Science meetup! Unfortunately the space is full but the talk will be livestreamed – check out the meetup web page for a link tomorrow.
Arduino Blog
Vintage rotary phone becomes stylish kitchen timer It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three...
7 months ago
99
7 months ago
It seems like everything that happens in a kitchen requires exact timing. Whisk the batter for three minutes, knead the dough for 15 minutes, bake for 30 minutes, and so on. A timer is a necessity for cooking and baking, but there is no reason you need to use your phone or a...
Willem's Blog
Swimming and cycling with Apple Watch This month I tested the newest watchOS while swimming and cycling.
over a year ago
Good Enough
TIL: Fixing Broken Social Share Images in Twitter/X I have an admission to make. Social share images for Pika were broken on Twitter/X, LinkedIn, and...
a month ago
12
a month ago
I have an admission to make. Social share images for Pika were broken on Twitter/X, LinkedIn, and Apple Messages for months. And it made me sad. But in the past few months we got it fixed. And that made me very happy! We really love our Pika social share images. They are...
GitButler
Stacked Branches with GitButler GitButler can now manage dependent branches that are stacked, including managing stacked GitHub PRs.
a month ago
Applied Cartography
Migrating to Django 5 The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was...
2 months ago
11
2 months ago
The total LOC delta to migrate Buttondown from Django 4 to Django 5 was +143, -150. (I was incentivized to do so because our search right now is quite slow, and the lowest hanging piece of fruit is to move some of the tsvector generation out of band, and I'd rather do that using...
Louwrentius
Why I Do Use ZFS as a File System for My NAS On February 2011, I posted an article about my motivations why I did not use ZFS as a file system...
over a year ago
6
over a year ago
On February 2011, I posted an article about my motivations why I did not use ZFS as a file system for my 18 TB NAS. You have to understand that at the time, I believe the arguments in the article were relevant, but much has changed since then, and I do believe this article is...
Avestura's Blog
Understanding zero-knowledge proofs What are zero-knowledge proofs, really?
over a year ago
seangoedecke.com RSS...
Building multiplayer games with socket.io and HTML5 Canvas I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps...
over a year ago
6
over a year ago
I’ve been building crappy hobby games on and off for my whole coding life. One of my very first apps was a Visual Basic game - I was in…
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...
6 months ago
38
6 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...
Willem's Blog
My first weeks as dad Last Christmas my wife gave birth of our son. It's a life changing experience to become a parent....
over a year ago
4
over a year ago
Last Christmas my wife gave birth of our son. It's a life changing experience to become a parent. Read along for my (biometric) findings and some practical tips.
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
./techtipsy
Self-hosting Wikipedia using Kiwix Do you have a need to host Wikipedia on your computer? Or a StackExchange site, like Super...
over a year ago
33
over a year ago
Do you have a need to host Wikipedia on your computer? Or a StackExchange site, like Super User? It’s easier than you think! Step 1: download stuff! The Kiwix project provides ZIM files for many popular websites, including Wikipedia. These files can be downloaded over at Kiwix...
Lars Lofgren
My 7 Rules for A/B Testing That Triple Conversion Rates I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I...
over a year ago
7
over a year ago
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I double or triple conversion rates without caring how a test performs? I actually care about the whole SYSTEM of testing. All the pieces need to fit together just right. If not,...
Home on Erik...
Looking for smart people I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small...
over a year ago
5
over a year ago
I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small startup called Better. We're going after one of the biggest industries in the world that also turns out to be completely broken.
Matt Mullenweg
Cloudflare Stories There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s...
2 months ago
8
2 months ago
There are two great Cloudflare-related stories published this weekend. The first is Steven Levy’s incredible story about Tim Jenkin, who created a secure communication protocol for the African National Congress to overthrow the apartheid regime in South Africa. Cloudflare’s CTO,...
Willem's Blog
Fighting backscatter spam at server level Deal with backscatter spam by implementing a stringent SMTP delivery policy at MTA level.
over a year ago
Notes on software...
Interview With Phil of DataStation This is an external interview. Click here if you are not redirected.
over a year ago
lcamtuf’s thing
The secret lives of snowblowers Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than...
4 months ago
4
4 months ago
Yes, they throw snow. But the mechanical design of residential snowblowers is more interesting than it seems.
Matt Mullenweg
Age-gating I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and...
a month ago
11
a month ago
I’m not opposed to age-gating at all, I think it’s appropriate in many situations and useful, and democratic societies can decide their own rules there. But it should be handled and authenticated as low-level as possible, at the operating system layer. See also: Australia’s...
Buck on Software
Thinking incrementally about SaaS An overview of the key output of the growth software machine
over a year ago
Vitalik Buterin's...
Glue and coprocessor architectures
4 months ago
Vitalik Buterin's...
Notes on Blockchain Governance
over a year ago
Electronics etc…
Cable Length Measurement with an HP 8007B Pulse Generator MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [...
a year ago
69
a year ago
MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [ ['$', '$'], ["\\(", "\\)"] ], displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ], processEscapes: true, skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Louwrentius
Making cowpatty recognize a four-way handshake I was unable to get cowpatty working with a packet capture that actually contains a four-way...
over a year ago
6
over a year ago
I was unable to get cowpatty working with a packet capture that actually contains a four-way handshake of a WPA session. I got it working like this: First, download cowpatty 4.6 right here, within the source directory of cowpatty. Extract cowpatty and apply this patch using these...
Vitalik Buterin's...
What I would love to see in a wallet
a month ago
latest projects -...
Robot Slide Whistle Orchestrion [Hardware] Army of Robot Slide Whistles
9 months ago
Birchtree
Yet more YouTube videos I've enjoyed recently I guess this is a series now… Do you have a chair where "half dirty" clothes go? If so, this chair...
4 weeks ago
11
4 weeks ago
I guess this is a series now… Do you have a chair where "half dirty" clothes go? If so, this chair will be very compelling. I'm not a big fan of most Apple TV+ shows, but Severance was lovely and I can't wait
Willem's Blog
Data versus Feeling Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to...
3 weeks ago
45
3 weeks ago
Do you rely on data or on your feeling when running a Marathon? I decided to run two marathons to find out the differences!
Computer Ads from...
E-Z Tax The Tax Break You've Been Looking for !
8 months ago
Style over Substance
My Home Assistant setup (2023 edition) For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s...
a year ago
120
a year ago
For the past few years, I have been running Home Assistant to make my apartment a smart home. It’s become such a hobby of mine that I’ve even started coding add-ons for it. While there are other popular automation platforms, Home Assistant’s versatility blows the rest out of the...
Christian Selig
Curing Mac mini M4 fomo with 3D printing Spoiler: 3D printed! The colored ports really sell the effect If you’re anything like me, you’ve...
a month ago
30
a month ago
Spoiler: 3D printed! The colored ports really sell the effect If you’re anything like me, you’ve found the new, tinier Mac mini to be absolutely adorable. But you might also be like me that you either already have an awesome M1 Mac mini that you have no real reason to replace,...
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
7
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...
Vitalik Buterin's...
Layer 1 Should Be Innovative in the Short Term but Less in the Long Term
over a year ago
Home on Erik...
HubSpot's Picture Shows how to Maintain Monocultures in the 21st Century I thought this article about the company culture at HubSpot is kind of funny. “HubSpot's Awesome...
over a year ago
5
over a year ago
I thought this article about the company culture at HubSpot is kind of funny. “HubSpot's Awesome Presentation Shows how to Create a 21st Century Culture”. Just FYI: You're not different. You're a bunch of white hipsters aged 25-30 dressed up in the same theme.
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
4
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...
Willem's Blog
Your own addressbook and calendar cloud You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data...
over a year ago
5
over a year ago
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data and share it between your devices.
Opsbros
WetSocks Revival How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do...
over a year ago
7
over a year ago
How to get a broken METAR/TAF Toolbar application working again; the fun way! Seeing what we can do to get WetSocks Windows 98 tray weather app working again.
Old Vintage...
Scenes from the Solbourne Computer corporate video, March 1992 Solbourne Computer, which for a number of years was probably Sun's most significant early competitor...
a year ago
69
a year ago
Solbourne Computer, which for a number of years was probably Sun's most significant early competitor in SPARC-based systems. Solbourne was the first to market in 1989 with multiprocessing SPARC servers based on their custom circuit-switched 108MB/s KBus interconnect, running a...
Arduino Blog
Transform trash into treasure with the DIY Bottle Plotter Manufacturers put a lot of effort into their packaging (there is an entire engineering discipline...
3 months ago
42
3 months ago
Manufacturers put a lot of effort into their packaging (there is an entire engineering discipline just for that) and some of it can be quite beautiful. But it usually still ends up in the landfill or, at best, in a recycling center. However, if you’re the type of person who can...
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...
3 weeks ago
22
3 weeks ago
Glasses and headsets and computers, oh my! Why the future continues to be all about adding computers to our lives, not replacing anything.
Louwrentius
Fio-plot: creating nice charts from FIO storage benchmark data New release of fio-plot I've rewritten fio-plot, a tool that turns FIO benchmark data into nice...
over a year ago
7
over a year ago
New release of fio-plot I've rewritten fio-plot, a tool that turns FIO benchmark data into nice charts. It allows you to create four types of graphs which will be discussed below. The github project page explains how to run this tool. Fio-plot also includes a benchmark script...
Birchtree
Comfort Zone: OLED Dreams and Studio Display Realities Niléane is out, so Chris and I are left to fend on ourselves! Chris steals like an artist and I...
11 hours ago
7
11 hours ago
Niléane is out, so Chris and I are left to fend on ourselves! Chris steals like an artist and I defend a new purchase…oh, and we have some fun with desks that sadly ends in Vision Pro slander. Why does this keep happening?! Watch on YouTube
Posts on Made of...
Tracking down a memory leak in Ruby's EventMachine At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services....
over a year ago
5
over a year ago
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services. Over the last several months, we’ve known that one such service suffered from a gradual memory leak, that would cause its memory usage to gradually balloon from a normal ~50MB to...
Louwrentius
'Tip of the day for every Linux or Unix user: brace expantion' Searching the web I discovered some really nice feature of the unix shell, which I didn't know...
over a year ago
4
over a year ago
Searching the web I discovered some really nice feature of the unix shell, which I didn't know about. Try this: touch foobar.conf Now try this: cp foobar.conf{,.bak} It is equivalent to: cp foobar.conf foobar.conf.bak This is also the easiest way to create sequences. Do not use...
Applied Cartography
Things take time Things take time. Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi...
8 months ago
5
8 months ago
Things take time. Nintendo fairly famously was born in 1889, and the modern incarnation — Yamamuchi Nintendo & Co., LTD — was established nearly fifty years later, in 1933. They spent forty years selling playing cards, then another decade operating merely as a distributor of...
Willem's Blog
Riding with a power meter on your bike In this post I describe my experience with installing the 4iiii Precision Powermeter on my road...
over a year ago
Louwrentius
Is storage really that cheap? Nowadays you can buy a 1 TB harddrive for less than 100 euro's . So I build myself a 4 TB NAS box,...
over a year ago
7
over a year ago
Nowadays you can buy a 1 TB harddrive for less than 100 euro's . So I build myself a 4 TB NAS box, which is already 50% full. However, although it is to some degree fault-tollerant by using RAID 6, one mistake or catastrophic hardware faillure and all data is lost. And that's...
Jonas Hietala
Netrunner Winter Kit Tournament Linköping After quite the hiatus from Netrunner I had a chance to join a tournament here in Linköping with 14...
over a year ago
4
over a year ago
After quite the hiatus from Netrunner I had a chance to join a tournament here in Linköping with 14 participants. The number of players has grown a lot since the previous tournament which is really great. As I really wanted to win the wonderful Day Job playmat I went with two of...
Jonas Hietala
Ores Now we can build rooms, we can place objects and the worker will do things for us. Now I’ve added...
over a year ago
7
over a year ago
Now we can build rooms, we can place objects and the worker will do things for us. Now I’ve added some ores which makes the game look a bit less boring. I realize I’ve spent all my time on these little things and I still don’t have a game! But it doesn’t matter, maybe I can...
Jonas Hietala
Default audio card in linux There are a bunch of posts about making your audio work by default in Linux but none that just...
over a year ago
4
over a year ago
There are a bunch of posts about making your audio work by default in Linux but none that just worked for me. I had three separate problems: Getting sound Playing sound from multiple sources at the same time Audio card getting different numbers on reboot Getting sound Here I...
Home on Erik...
Scala Data Pipelines for Music Recommendations Chris Johnson‘s presentation from Data Day Texas:
over a year ago
Notes on software...
What makes a great technical blog I want to explain why the blogs in My favorite technical blogs are my favorite. That page is solely...
9 months ago
7
9 months ago
I want to explain why the blogs in My favorite technical blogs are my favorite. That page is solely about non-corporate tech blogs. So this post is too. I'll have to make another list for favorite corporate tech blogs. In short, they: Tackle hard and confusing topics Show working...
Matt Mullenweg
I Voted! It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a...
2 months ago
11
2 months ago
It was a huge pain in the butt, because my mail-in ballot didn’t register properly, but I found a last-minute flight to Houston and this morning walked over to Congregation Emanu El and voted. It is our most sacred duty as a citizen. I encourage every American to vote.
Notes on software...
Favorite compiler and interpreter resources This is an external post of mine. Click here if you are not redirected.
over a year ago
Posts on Made of...
Two kinds of testing While talking about thinking about tests and testing in software engineering recently, I’ve come to...
over a year ago
6
over a year ago
While talking about thinking about tests and testing in software engineering recently, I’ve come to the conclusion that there are (at least) two major ideas and goals that people have when they test or talk about testing. This post aims to outline what I see as these two schools,...
Home on Erik...
Tumblr's awesome project names Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about...
over a year ago
6
over a year ago
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about their projects named after Arrested Development topics: Gob, Parmesan, Buster, Jetpants, Oscar, George and Motherboy. Still, the best software project name is probably still Apple's...
anderegg.ca
Apple and the AI divide This morning I read a 404 Media article about Instagram showing people ads with AI-generated images...
3 days ago
22
3 days ago
This morning I read a 404 Media article about Instagram showing people ads with AI-generated images of themselves. I thought this take from Sam Biddle was very good: Never in my career have I seen such a giant gulf between What Companies Think Is the Most Important Thing in the...
Neil Madden
Why the OAuth mTLS spec is more interesting than you might think I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the...
over a year ago
5
over a year ago
I was catching up on the always excellent Security. Cryptography. Whatever. podcast, and enjoyed the episode with Colm MacCárthaigh about a bunch of topics around TLS. It’s a great episode that touches a lot of subjects I’m interested in, so go ahead and listen to it if you...
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
7
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...
Computer Ads from...
Gould Electronic's PowerNode 6000 The Firebreathers from Gould blast the competition into oblivion.
5 months ago
Ken Shirriff's blog
Inside the mechanical Bendix Air Data Computer, part 3: pressure transducers MathJax = { tex: { inlineMath: [['$', '$'], ['\\(', '\\)']] }, svg: { fontCache:...
11 months ago
6
11 months ago
MathJax = { tex: { inlineMath: [['$', '$'], ['\\(', '\\)']] }, svg: { fontCache: 'global' }, chtml: { displayAlign: 'left' } }; MathJax.Hub.Config({ "HTML-CSS": { scale: 175} }); .MathJax {font-size: 1em !important} The Bendix Central Air...
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
6
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:...
Louwrentius
Which file system for a large storage array under Linux? There are many file systems available under Linux, however only a few of them can be used for a...
over a year ago
7
over a year ago
There are many file systems available under Linux, however only a few of them can be used for a large storage array. I am assuming that you want to create a single file system. I don't care if you use LVM or other layers beneath, this is about which file system to use. I will...
Home on Erik...
Toxic meeting culture I spent six years at a company that went from 50 people to 1500 and one contributing factor leading...
over a year ago
4
over a year ago
I spent six years at a company that went from 50 people to 1500 and one contributing factor leading to my departure was that I went from a “maker” to a person stuck in meetings every day.
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
8
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...
Arduino Blog
Clone your IoT projects with Arduino Cloud Custom Templates Whether you are an IoT enthusiast, an enterprise developer or a high school teacher, we all know the...
5 months ago
55
5 months ago
Whether you are an IoT enthusiast, an enterprise developer or a high school teacher, we all know the thrill of bringing a new IoT project to life. But we also understand the frustration of repetitive setup processes and the time sink of configuring the same elements over and over...
./techtipsy
Tech tip: eliminate HDD humming noise Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are...
over a year ago
33
over a year ago
Anyone that has bought themselves external WD drives from the Elements/My Book/Easystore series are probably familiar with the acoustic characteristics of the drives. The drives have a loud hum caused by WD running the drives at 7200rpm while claiming the drives to be...
./techtipsy
Cool links This is an unsorted list of links that I find to be cool. slow roads sit back, relax and let the AI...
a year ago
40
a year ago
This is an unsorted list of links that I find to be cool. slow roads sit back, relax and let the AI do all the driving or don’t, I’m not your dad
Jonas Hietala
A Week of Headache This was supposed to be a productive week with lots and lots of Perl and Ada but instead I’ve had...
over a year ago
6
over a year ago
This was supposed to be a productive week with lots and lots of Perl and Ada but instead I’ve had this big headache all week, and some the week before and it’s gotten pretty bad so I can’t really concentrate on anything really. The electronics assignment was a bitch and it took a...
Gwern.net Newsletter
April 2021 newsletter with links on AI scaling, particular new East Asian record-breaking work & deep reinforcement...
over a year ago
5
over a year ago
with links on AI scaling, particular new East Asian record-breaking work & deep reinforcement learning.
Jonas Hietala
A simple timeline using CSS flexbox As I added a /now page to the site I also decided to refresh my /about page and I figured it would...
4 months ago
6
4 months ago
As I added a /now page to the site I also decided to refresh my /about page and I figured it would be neat to have timeline element where I could list some of the larger events in my life. To my surprise it wasn’t too difficult to create one that looks pretty clean—the flexbox...
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
7
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...
Abort Retry Fail
The History of Windows 1.0 Vaporware
a year ago
Posts on Made of...
Testing and feedback loops Testing and feedback loops This post tries to set out one mental model I have for thinking about...
over a year ago
7
over a year ago
Testing and feedback loops This post tries to set out one mental model I have for thinking about testing and the purpose testing serves in software engineering, and to explore some of the suggestions of this model. As mentioned in an earlier post, I think a lot about working in...
Louwrentius
Linux Iptables Firewall Script released on Google code I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall...
over a year ago
6
over a year ago
I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall within minutes. It is easy to use, yet very powerful. It uses Iptables and even improves upon some limitations of Iptables. Every person who has to maintain some kind of...
Computer Ads from...
Black Friday - Happy Birthday sale Let's mix things up!
a month ago
Arduino Blog
Marble art madness from a marvelous machine Marbles are underrated. They’re very round, roll well, tend to be pretty shiny, and come in all...
3 months ago
24
3 months ago
Marbles are underrated. They’re very round, roll well, tend to be pretty shiny, and come in all sorts of neat colors. That last characteristic makes them suitable for artwork, like orbicular pixels. In his most ambitious project to date, Engineezy took advantage of those...
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
Vitalik Buterin's...
Plurality philosophy in an incredibly oversized nutshell
4 months ago
lcamtuf’s thing
Random objects: Intel Edison A glimpse of the missteps of x86 in the embedded world.
6 months ago
Home on Erik...
The Filter Bubble is Silly and you Can't Guess What Happened Next I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here...
over a year ago
4
over a year ago
I'm at RecSys 2014, meeting a lot of people and hanging out at talks. Some of the discussions here was about the filter bubble which prompted me to formalize my own thoughts. I firmly believe that it's the role of a system to respect the user's intent.
Matt Mullenweg
Rhino Dehorning Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles,...
3 months ago
10
3 months ago
Yesterday in the African bush was great, I saw giraffes, zebras, warthogs, leopard turtles, elephants. Today wasn’t great: I witnessed a rhino shot with a tranquilizer from a helicopter, then it was held down, had its horns cut off, and then shaved down. I have some photos and...
./techtipsy
This site will be offline on 2022-08-17 between 18:00-19:00 EEST There really isn’t much to say here, nor is there a rational reason behind this. I just see it as an...
over a year ago
61
over a year ago
There really isn’t much to say here, nor is there a rational reason behind this. I just see it as an opportunity to send a signal and test the capabilities of my UPS. I’ve prepared for this moment with my self-hosting setup, let’s see how well it holds up. Hopefully better than...
Style over Substance
Create a Hue-compatible DIY LED light sculpture Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art,...
over a year ago
60
over a year ago
Learn how to create your own Hue compatible LED light sculpture, inspired by by the REFLEKTION art, using cheap LED strips and DIY parts you can order online. The post Create a Hue-compatible DIY LED light sculpture appeared first on Style over Substance.
Louwrentius
Debian Lenny and Dell R410 network card not supported For those who are running Debian Lenny and want to order the new Dell R410 server, beware! There is...
over a year ago
4
over a year ago
For those who are running Debian Lenny and want to order the new Dell R410 server, beware! There is no safe solution to get Debian Lenny working with the on-board Broadcom network cards. A fairly recent kernel is required. Basically, you will have to install back-ported kernels,...
Christian Selig
Announcing Apollo: a new Reddit app for iPhone I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called...
over a year ago
23
over a year ago
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called Apollo and it’s a new Reddit app for iPhone. I’ve been a Reddit user for about four years now, and the site is a constant source of interesting discussion, hilarity and news for me...
Arduino Blog
3D printing an affordable robot arm  If you have an interest in robotics, then a robot arm is a great educational tool to start your...
5 months ago
40
5 months ago
If you have an interest in robotics, then a robot arm is a great educational tool to start your journey. But professional robot arms are expensive and the DIY route is more informative anyway. That’s especially true if you take the time to design the arm yourself, as did Oliver...
Ken Shirriff's blog
Inside an IBM/Motorola mainframe controller chip from 1981 In this article, I look inside a chip in the IBM 3274 Control Unit.1 But before I discuss the chip,...
5 months ago
4
5 months ago
In this article, I look inside a chip in the IBM 3274 Control Unit.1 But before I discuss the chip, I need to give some background on mainframes. (I didn't completely analyze the chip, so don't expect a nice narrative or solid conclusions.) Die photo of the Motorola/IBM SC81150...
Posts on Made of...
Graceful behavior at capacity Suppose we’ve got a service. We’ll gloss over the details for now, but let’s stipulate that it...
a year ago
4
a year ago
Suppose we’ve got a service. We’ll gloss over the details for now, but let’s stipulate that it accepts requests from the outside world, and takes some action in response. Maybe those requests are HTTP requests, or RPCs, or just incoming packets to be routed at the network layer....
Jonas Hietala
Autumn 2016 Goals Retrospective Earlier this year I set out some goals I wanted to accomplish this autumn. I accomplished a few...
over a year ago
6
over a year ago
Earlier this year I set out some goals I wanted to accomplish this autumn. I accomplished a few things and I failed others. Exercise and Health Eat more strict LCHF for 1 month ok Train BJJ or MMA for 1 month ok 2 months of lifting at the gym ok Powerlifting 100 kg deadlift 5x5...
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
6
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.
Louwrentius
Convert dos file to linux format wit vim If you have some file that has been saved on a (Win)do(w)s host you may notice that all lines end...
over a year ago
6
over a year ago
If you have some file that has been saved on a (Win)do(w)s host you may notice that all lines end with ^M. To fix this, you can use the tool dos2unix. If however this tool is not at your disposal, you may have a problem. If vim is available, you do not have a problem: The trick...
Louwrentius
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
4
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...
Lighthouse Blog
Hidden features
7 months ago
Notes on software...
Active and influential NYC infrastructure people These are some of the most influential (mostly due to experience or expertise) and active folks (I...
a month ago
12
a month ago
These are some of the most influential (mostly due to experience or expertise) and active folks (I actually see them attend events) in the NYC infrastructure scene (that I have a personal connection to). If you're running a dinner or are just looking to meet interesting people in...
Vitalik Buterin's...
From prediction markets to info finance
2 months ago
Vitalik Buterin's...
Soulbound
over a year ago
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
6
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...
Home on Erik...
Learning from users faster using machine learning I had an interesting idea a few weeks ago, best explained through an example. Let's say you're...
over a year ago
6
over a year ago
I had an interesting idea a few weeks ago, best explained through an example. Let's say you're running an e-commerce site (I kind of do) and you want to optimize the number of purchases. Let's also say we try to learn as much as we can from users, both using A/B tests but also...
Odds and Ends of...
Odds and Ends #44: The New Statesman still needs fixing Plus Channel Tunnel news, a NIMBY assault on an excellent pub, and more!
a month ago
Vitalik Buterin's...
On Medium-of-Exchange Token Valuations
over a year ago