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Jonas Hietala
The Top Idea Recently I’ve been having a dozen ideas and projects I’ve been poking around with: I wrote a simple...
over a year ago
3
over a year ago
Recently I’ve been having a dozen ideas and projects I’ve been poking around with: I wrote a simple lua, later perl, which announced when a new day9 episode has come. Later I expanded it to search for new manga episodes, but now it’s broken and unfinished. In an attempt to learn...
Home on Erik...
Implicit data and collaborative filtering A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right?...
over a year ago
3
over a year ago
A lot of people these days know about collaborative filtering. It's that Netflix Prize thing, right? People rate things 1-5 stars and then you have to predict missing ratings. While there's no doubt that the Netflix Prize was successful, I think it created an illusion that all...
computers are bad
2023-11-19 Centrex I have always been fascinated by the PABX - the private automatic branch exchange, often shortened...
a year ago
78
a year ago
I have always been fascinated by the PABX - the private automatic branch exchange, often shortened to "PBX" in today's world where the "automatic" is implied. (Relatively) modern small and medium business PABXs of the type I like to collect are largely solid-state devices that...
Louwrentius
Achieving 450 MB/s network file transfers using Linux Bonding Linux Bonding In this article I'd like to show the results of using regular 1 Gigabit network...
over a year ago
2
over a year ago
Linux Bonding In this article I'd like to show the results of using regular 1 Gigabit network connections to achieve 450 MB/s file transfers over NFS. I'm again using Linux interface bonding for this purpose. Linux interface bonding can be used to create a virtual network...
Posts on Made of...
Running Tensorflow on AWS GPUs I’ve been spending some time learning deep learning and tensorflow recently, and as part of that...
over a year ago
2
over a year ago
I’ve been spending some time learning deep learning and tensorflow recently, and as part of that project I wanted to be able to train models using GPUs on EC2. This post contains some notes on what it took to get that working. As many people have commented, the environment setup...
Home on Erik...
Buffet lines are terrible, but let's try to improve them using computer simulations My company has a buffet every Friday, and the lines grow to epic proportions when the food arrives....
over a year ago
2
over a year ago
My company has a buffet every Friday, and the lines grow to epic proportions when the food arrives. I've suspected for years that the “classic” buffet line system is a deeply flawed and inefficient method, and every time I'm stuck in the line has made me more convinced.
Arduino Blog
Amassing a mobile Minion militia Channeling his inner Gru, YouTuber Electo built a robotic minion army to terrorize and amuse the...
4 months ago
31
4 months ago
Channeling his inner Gru, YouTuber Electo built a robotic minion army to terrorize and amuse the public in local shopping malls. Building one minion robot is, in theory, pretty straightforward. That is especially true when, like these, that robot isn’t actually bipedal and...
Style over Substance
My new purchase: a Zeiss Ikon Nettar 517/16 Cheaper than a tank of gas, smaller than a Leica, 6x6 medium format negs - tons of fun. This Nettar...
over a year ago
70
over a year ago
Cheaper than a tank of gas, smaller than a Leica, 6x6 medium format negs - tons of fun. This Nettar folding camera sure is bang for buck! The post My new purchase: a Zeiss Ikon Nettar 517/16 appeared first on Style over Substance.
Notes on software...
Why (and how) to read books The last time I read for fun was in elementary school. Since college I knew I must read more, but I...
over a year ago
2
over a year ago
The last time I read for fun was in elementary school. Since college I knew I must read more, but I never forced myself to build the habit. Then three years ago I spent time around my brother and a coworker who were avid readers. This "peer pressure" helped me get started. Since...
Ian's Blog
Learn how Windows builds its store of trusted root CA certificates Today I learned something fascinating about how Windows deals with trusted root CA certificates. It...
over a year ago
2
over a year ago
Today I learned something fascinating about how Windows deals with trusted root CA certificates. It might surprise you, and it certainly did for me, but out-of-the-box Windows doesn't come with a set of root CA certificates sufficient for web browsing. You can see this for...
Louwrentius
A 12.48 inch (1304x984) three-color e-paper display by Waveshare Introduction Update September 2023: A small horizontal and large vertical row of pixels died. Demo...
over a year ago
2
over a year ago
Introduction Update September 2023: A small horizontal and large vertical row of pixels died. Demo of defective display here. I'm running a solar-powered blog and I wanted to add a low-power display to show the daily solar 'harvest'1 and maybe some additional information. So I...
Good Enough
TIL: JavaScript Turbo Stream Requests I am working on search for Album Whale and I was very confused when my JavaScript fetch requests...
a year ago
2
a year ago
I am working on search for Album Whale and I was very confused when my JavaScript fetch requests were not resulting in turbo_stream rendering getting displayed on my page. I checked my logs to see if the render was happening. I looked for missing <%= tags. Debugged and...
Posts on Made of...
Towards solving Ultimate Tic Tac Toe Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey...
over a year ago
2
over a year ago
Summary: Read about my efforts to solve the game of Ultimate Tic Tac Toe. It’s been a fun journey into interesting algorithms and high-performance parallel programming in Rust. Backstory Starting around the beginning of the COVID-19 lockdown, I’ve gotten myself deeply nerdsniped...
Vitalik Buterin's...
On Nathan Schneider on the limits of cryptoeconomics
over a year ago
Jonas Hietala
Before the Games: The Site I’ve got some things I want to do before I start with my next game and they’re all about improving...
over a year ago
2
over a year ago
I’ve got some things I want to do before I start with my next game and they’re all about improving the site. The last week or so has been extremely productive with me throwing out a lot of wasted code, speeding up the site and adding/removing features and I want to continue with...
Buck on Software
The Wrong Bet The next decade in SaaS won't look like the last
over a year ago
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
2
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...
Azad's Blog
Apple Vision Pro—A Revolution for Home Video Formats Apple has always been at the forefront of home video with Apple TV (the device), iTunes Movies,...
3 months ago
2
3 months ago
Apple has always been at the forefront of home video with Apple TV (the device), iTunes Movies, Spatial Audio, and the vivid displays of iPhones, iPads, and Mac displays. With Apple Vision Pro, Apple is once again pushing the boundaries of the movie watching experience by...
Home on Erik...
Music recommendations using cover images (part 1) Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in...
over a year ago
2
over a year ago
Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in fact a fairly strong visual proxy for what kind of content you can expect from it. I started wondering if the album cover can in fact be used for recommendations.
Louwrentius
A practical understanding of lead acid batteries Introduction The goal of this article is to give you a practical understanding Lead Acid batteries....
over a year ago
2
over a year ago
Introduction The goal of this article is to give you a practical understanding Lead Acid batteries. We won't address the underlying chemistry, we'll treat them as a black-box and we will discover their characteristics and how to keep them healthy. Disclaimer I'm an amateur. I...
Posts on Made of...
Two Perspectives on the End-to-End Principle Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read...
over a year ago
2
over a year ago
Back when I was an undergraduate, as part of a class called “Computer Systems Engineering”, we read numerous classic papers of systems design. I enjoyed and learned a great deal from many of these papers, but one that paper that has stuck with me in particular was Saltzer et al’s...
Arduino Blog
Finally, you can DIY your own espresso machine Caffeine lovers take their coffee very seriously and that is most apparent when you dive into the...
3 months ago
32
3 months ago
Caffeine lovers take their coffee very seriously and that is most apparent when you dive into the world of espresso machines. To satisfy enthusiasts, an espresso machine needs to provide precise control over temperature, pressure, and flow to enable the perfect pull. But if...
Louwrentius
IKEA $50 VINDSTYRKA vs. $290 Dylos air quality monitor This is a brief article in which I compare the IKEA VINDSTYRKA $50 air quality monitor (PM2.5) with...
a year ago
2
a year ago
This is a brief article in which I compare the IKEA VINDSTYRKA $50 air quality monitor (PM2.5) with a $290 air quality monitor made by Dylos to see if it's any good. Context If you care about indoor air quality, you may already own a CO2 to determine if it's time to ventilate...
Bryan Braun - Blog
Goodbye Evernote, Hello Obsidian I use note-taking software every day. I use it for journaling, blogging, capturing ideas,...
6 months ago
2
6 months ago
I use note-taking software every day. I use it for journaling, blogging, capturing ideas, researching technologies, managing my projects, and many other things. Writing is how I think through problems, and note-taking software makes all that thinking easy to search and...
Lighthouse Blog
How to rate content and find it again
6 months ago
Applied Cartography
Applied Cartography × Val Town Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If...
a month ago
4
a month ago
Had a blast live-coding some experimentations with Steve and Shovel yesterday using Val Town. (If you haven't used Val, well, watch the stream — think live, zero-deploy code snippets that can be arbitrarily extended and executed.) Reflecting on the experience, the most exciting...
Birchtree
Somehow, more YouTube gems Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them...
2 days ago
8
2 days ago
Yup, we’re doing this again because you all seem to like them an honestly I kinda like making them 😊 I love Answer in Progress, especially Sabrina’s videos, and she gets about as obsessed with anything she’s ever looked at in this episode (and
Louwrentius
Using InfiniBand for cheap and fast point-to-point Networking InfiniBand networking is quite awesome. It's mainly used for two reasons: low latency high...
over a year ago
2
over a year ago
InfiniBand networking is quite awesome. It's mainly used for two reasons: low latency high bandwidth As a home user, I'm mainly interested in setting up a high bandwidth link between two servers. I was using quad-port network cards with Linux Bonding, but this solution has some...
Jonas Hietala
Laying off Pintos Exam period is here which means all courses should be wrapping up and a week or so ago we finished...
over a year ago
3
over a year ago
Exam period is here which means all courses should be wrapping up and a week or so ago we finished up our lab series about pintos. The labs were among the best I’ve had yet and I learned a ton. We didn’t follow the official instructions but we had our own assigmnets....
Jonas Hietala
An Epic Start Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and...
over a year ago
3
over a year ago
Oh what a mistake. I woke up at 05.00 when my girlfriend woke up, she’s working early today, and went to the bathroom. After I was done, still pretty tired, I made a big mistake. I checked the current theme for Ludum Dare 29: Beneath the Surface and guess what? Now I wasn’t tired...
Posts on Made of...
Implementing a declarative mini-language in the C preprocessor Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time,...
over a year ago
2
over a year ago
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time, I want to talk about the tricks I used to implement a declarative minilanguage using the C preprocessor (and some GCC extensions). The Problem We want to write some toplevel...
Ken Shirriff's blog
The Intel 8088 processor's instruction prefetch circuitry: a look inside In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM's...
9 months ago
2
9 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 dominance of the x86 architecture that continues to the present.1 One...
Lighthouse Blog
Updates November 17: Content classification and summary
a year ago
Jonas Hietala
Let's build a VORON: Major failure The left POM nut got ground down, making the bed fall down. After 600 hours, the printer met it’s...
9 months ago
2
9 months ago
The left POM nut got ground down, making the bed fall down. After 600 hours, the printer met it’s first major failure. I know I earlier described how the extruder starter skipping in a big way, but that was just some filament getting stuck in the extruder. This time a part...
Old Vintage...
Refurb weekend: the Symbolics MacIvory Lisp machine I have hated Every collector has that machine, the machine they sunk so much time and, often, money into that...
2 months ago
35
2 months ago
Every collector has that machine, the machine they sunk so much time and, often, money into that they would have defenestrated it years ago except for all the aforementioned time and money. Yours truly is no exception. a future article.) They existed in highly technical...
csvbase blog
Take the tools out of 'Data', but don't take the data out of the tools Using dataframes to write smaller, faster programs
a year ago
Louwrentius
Neato XV-15 / XV-11 Robotic Vacuum cleaner review Update 18 February 2012 There is one problem. When the robot is not connected to the charger, the...
over a year ago
2
over a year ago
Update 18 February 2012 There is one problem. When the robot is not connected to the charger, the batteries are depleted very fast. Even if the batteries are not entirely depleted and the robot can still display the menu, the clock loses it's time. Every time the robot gets a too...
Notes on software...
Writing a SQL database from scratch in Go: 4. a database/sql driver Previously in database basics: 1. SELECT, INSERT, CREATE and a REPL 2. binary expressions...
over a year ago
2
over a year ago
Previously in database basics: 1. SELECT, INSERT, CREATE and a REPL 2. binary expressions and WHERE filters 3. indexes In this post, we'll extend gosql to implement the database/sql driver interface. This will allow us to interact with gosql the same way we would...
latest projects -...
Talking Tines [Concept] Tuning forks that talk
5 months ago
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...
9 months ago
2
9 months ago
How can you amend a series of commits automatically to keep a clean history? Let's take a look at git autosquash.
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...
2 months ago
24
2 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...
Ken Shirriff's blog
Wealth distribution in the United States Forbes recently published the Forbes 400 List for 2024, listing the 400 richest people in the United...
2 months ago
4
2 months ago
Forbes recently published the Forbes 400 List for 2024, listing the 400 richest people in the United States. This inspired me to make a histogram to show the distribution of wealth in the United States. It turns out that if you put Elon Musk on the graph, almost the entire US...
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
2
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...
seangoedecke.com RSS...
Talking to ChatGPT costs 5ml of water, not 500ml There’s a common claim on the internet that ChatGPT consumes half a litre of water for every 5-50...
a month ago
4
a month ago
There’s a common claim on the internet that ChatGPT consumes half a litre of water for every 5-50 responses. Here are some randomly-chosen…
seangoedecke.com RSS...
Blockchain for beginners Introduction This is a guide for developers who kinda sorta know what blockchains are for (making...
over a year ago
2
over a year ago
Introduction This is a guide for developers who kinda sorta know what blockchains are for (making distributed crypto-currencies like Bitcoin…
Arduino Blog
This device prevents garage door security breaches Your automatic garage door is almost certainly the most vulnerable access point in your house....
2 months ago
34
2 months ago
Your automatic garage door is almost certainly the most vulnerable access point in your house. Traditional systems are notorious for their susceptibility to replay attacks, but even more sophisticated modern garage door openers and those that lack remote functionality entirely...
Buck on Software
Thoughts on SaaS and other things Welcome to Buck on Software!
over a year ago
Notes on software...
Leaders, you need to share organization success stories more frequently This post goes out to anyone who leads a team: managers, directors, VPs, executives. You need to...
over a year ago
1
over a year ago
This post goes out to anyone who leads a team: managers, directors, VPs, executives. You need to share organization success stories with your organization on a regular and frequent basis. Talk about sales wins, talk about new services released, talk about the positive impact of a...
Abort Retry Fail
The History of Windows 2.0 Success and Litigation
a year ago
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
2
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...
Avestura's Blog
Oversimplified ideas of the great philosophers of all times Ideas of the great philosophers of all times explained in a few lines
a year ago
Posts on Made of...
Computers can be understood Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially...
over a year ago
2
over a year ago
Introduction This post attempts to describe a mindset I’ve come to realize I bring to essentially all of my work with software. I attempt to articulate this mindset, some of its implications and strengths, and some of the ways in which it’s lead me astray. Software can be...
Willem's Blog
Tablet as Tool Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and...
a year ago
2
a year ago
Discover the hidden advantages of the iPad Pro in this insightful blog post, offering tips and personal experiences to help you maximise the tablet's potential and redefine your workflow.
Vitalik Buterin's...
Coordination, Good and Bad
over a year ago
./techtipsy
My very first career day This post is a short overview of my experience at a career day in Valga, Estonia, hosted with the...
10 months ago
105
10 months ago
This post is a short overview of my experience at a career day in Valga, Estonia, hosted with the help of GreenDice. I’ve never spoken at a career day before nor attended one as a student, which is why I instantly agreed to going to one when GreenDice reached out to me. Why? I...
Simply Explained
Howto Virtualize Unraid on a Proxmox host Here's how to run Unraid as a virtual machine under Proxmox. This is useful when you're already...
over a year ago
2
over a year ago
Here's how to run Unraid as a virtual machine under Proxmox. This is useful when you're already using Proxmox and if you want to use Unraid as a NAS.
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
2
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...
Vitalik Buterin's...
Possible futures of the Ethereum protocol, part 1: The Merge
2 months ago
Engineers Need Art
Adam74 The Adam74 is a small ASCII-based terminal designed for the 8-bit hobbyist.
over a year ago
GitButler
Why GitHub Actually Won How GitHub _actually_ became the dominant force it is today, from one of it's cofounders.
3 months ago
./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 days ago
14
2 days 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...
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
2
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...
Willem's Blog
Monolithic vs Microservices software architecture This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn...
over a year ago
3
over a year ago
This week I flew to Gothenburg to talk about enterprise software architecture, read along to learn about choosing the right architecture for your app development
Home on Erik...
Subway waiting math Why does it suck to wait for things? In a previous post I analyzed a NYC subway dataset and found...
over a year ago
2
over a year ago
Why does it suck to wait for things? In a previous post I analyzed a NYC subway dataset and found that at some point, quite early, it's worth just giving up. This isn't a proof that the subway doesn't run on time – in fact it might actually proves that the subway runs really...
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
2
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...
Vitalik Buterin's...
[Mirror] Cantor was Wrong: debunking the infinite set hierarchy
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
seangoedecke.com RSS...
Writing good technical explanations Software engineering is mainly learning. There is a great demand for technical explanations, and...
over a year ago
2
over a year ago
Software engineering is mainly learning. There is a great demand for technical explanations, and many thousands of books, talks and blog…
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
2
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.
Jonas Hietala
2019 in Review As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on...
over a year ago
2
over a year ago
As is tradition a quick rundown of the year is due. It’s been good to do as it makes me reflect on the past year, and see that I did indeed do some things, and to look ahead a little. 2019 Non-Geek Achievements Played around with Isidor. It’s hard to describe how happy a kid can...
computers are bad
2024-08-19 mining for meteors Billboards Route 66 is often viewed through the lens of its billboards. The Jack Rabbit Trading...
4 months ago
54
4 months ago
Billboards Route 66 is often viewed through the lens of its billboards. The Jack Rabbit Trading Post, a small store a few miles out of Joseph City, would hardly be remembered were it not for its billboards spanning four states. The tradition of far-advance billboards is still...
Gwern.net Newsletter
Jan 2021 Gwern.net Newsletter January 2021 gwern.net newsletter with links on AI scaling up and down.
over a year ago
./techtipsy
How to start your self-hosting adventure: a high-level overview Reddit is a great starting point for getting new ideas for your homelab: racks full of machines in...
over a year ago
30
over a year ago
Reddit is a great starting point for getting new ideas for your homelab: racks full of machines in /r/homelab, storage measured in terabytes (or even petabytes) over at /r/datahoarder, all the different services that people host over at /r/selfhosted. This can be a bit...
Good Enough
Let's talk about conversations If you subscribe to our newsletter — which you do, right? — then you'll know that recently we've...
9 months ago
2
9 months ago
If you subscribe to our newsletter — which you do, right? — then you'll know that recently we've been thinking about conversations. We're a small group making fun software for people, and we like to have conversations with those people; the lovely folks who like our take on...
./techtipsy
Why I went back to using a ThinkPad from 2012 This post is inspired by this article from the Low-tech Magazine. I highly recommend giving that a...
over a year ago
35
over a year ago
This post is inspired by this article from the Low-tech Magazine. I highly recommend giving that a read as well! Over my lifetime, I’ve used a bunch of different computers, mainly due to new ideas and requirements popping into my mind every time I’m content with my current setup....
Christian Selig
Server side Live Activities guide iOS 17.2 gained the capability to start Live Activities from a server, which is pretty cool and...
2 months ago
47
2 months ago
iOS 17.2 gained the capability to start Live Activities from a server, which is pretty cool and handy! I’ve been playing around with it a bit and found some parts a bit confusing, so I thought I’d do a little write up for future me as well as anyone else who could benefit! (For...
Louwrentius
Google DNS - what to think of it? Google now provide an open DNS service. At first I was scared that they use their service to get...
over a year ago
3
over a year ago
Google now provide an open DNS service. At first I was scared that they use their service to get information about users. However, their privacy statement tells us that no personal identifiable information is stored for longer than 48 hours. The permanent logs do not contain such...
Lighthouse Blog
How to organize content
6 months ago
Notes on software...
Confusion is a muse Some of the most interesting technical blog posts I read come from, and a common reason for posts I...
6 months ago
2
6 months ago
Some of the most interesting technical blog posts I read come from, and a common reason for posts I write is, confusion. You're at work and you start asking questions that are difficult to answer. You spend a few hours or a day trying to get to the bottom of things. If you ask a...
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
Good Enough
Our Favorite Video Games Right Now While everyone at Good Enough is their own kind of nerd, thank you very much, as builders of the web...
a year ago
2
a year ago
While everyone at Good Enough is their own kind of nerd, thank you very much, as builders of the web you probably expect that we also play video games. And we do! Well, collectively we do, but not to an unhealthy degree. Usually. I asked the team to share with me what their...
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
1
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.
Louwrentius
Belkin Gigabit USB 2.0 adapter works perfectly with Linux My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my...
over a year ago
2
over a year ago
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my internet router. As you may be aware, the mini has only one network interface, so I added a second interface using a USB to ethernet adapter. This adapter was limited to 100 Mbit, so...
Engineers Need Art
VPX Scripting - Part 6 (End Sound) This post wraps up the sound work on Teacher's Pet.
8 months ago
Vitalik Buterin's...
Crypto Cities
over a year ago
Good Enough
Thoughts On Thoughts It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our...
a year ago
2
a year ago
It’s time for a revolution. Too long have we, collectively and individually, been tyrannized by our thoughts and what we believe about them. Or perhaps we can think of this as an intervention. This post is the circle of friends gathered to help us stop hitting ourselves in the...
Jonas Hietala
Generating ideas So I got a fairly fun assignment from the game design course I’m taking for once. I should come up...
over a year ago
2
over a year ago
So I got a fairly fun assignment from the game design course I’m taking for once. I should come up with 50 ideas using my own idea generation technique. I used a sort of “notes in the basket” approach where you placed some notes with words in a basket and randomly drew two and...
Applied Cartography
Git one-liner: get the earliest commit from X hours ago I wanted to get a commit that was temporally some distance back as part of my experimentation with...
7 months ago
2
7 months ago
I wanted to get a commit that was temporally some distance back as part of my experimentation with git cliff. This took some time to do, but here's what I ended up with: git log --since="72 hours ago" --until="now" --reverse --pretty=format:"%h" | head -1 Nothing particularly...
Jonas Hietala
Postmortem: MenuCity Good times, good times. MenuCity has been out a while and thanks for all the positive and...
over a year ago
2
over a year ago
Good times, good times. MenuCity has been out a while and thanks for all the positive and constructive feedback guys, it’s like my food doing this (programming is my air and the fun is the water… err). Anyway here’s the postmortem of my latest, and greatest, game. Let’s start...
./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
39
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...
./techtipsy
Things I've learned during my self-hosting adventure This is a list of lessons that I’ve learned while playing around with my computer setup during the...
over a year ago
24
over a year ago
This is a list of lessons that I’ve learned while playing around with my computer setup during the last 6-7 years or so. USB connected storage is a bad idea when you are using BTRFS. USB connected storage is still a bad idea when you are using ZFS, but it is at least much more...
Gwern.net Newsletter
December newsletter December 2020 gwern.net newsletter with links on AI and technology; major new site feature:...
over a year ago
2
over a year ago
December 2020 gwern.net newsletter with links on AI and technology; major new site feature: fully-generalized recursive popups.
Neil Madden
A controversial opinion about REST API design I was just reading yet another article on REST API design guidelines. Some of it is good advice,...
a year ago
2
a year ago
I was just reading yet another article on REST API design guidelines. Some of it is good advice, some of it I could quibble with. But several of the rules are about how to design the path hierarchy of your API: use plural nouns, don’t use nested sub-paths unnecessarily, etc. In...
Arduino Blog
Adding voice commands to a LEGO planetarium set with an Arduino Nano 33 IoT From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning...
4 months ago
36
4 months ago
From Mindstorms to Technic, LEGO has produced a wide variety of sets that give users new learning and creative experiences, and for Electromaker’s Robin Mitchell, this was the LEGO planetarium set. With it, rotational input will cause the Earth and moon models to orbit around the...
Willem's Blog
Realtime human pose recognition through computer vision For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose...
over a year ago
2
over a year ago
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose detection using PoseNet.
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
2
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...
Vitalik Buterin's...
我在加密世界的一些个人体验
over a year ago
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
2
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.
Louwrentius
Linux Software RAID benchmarking script Just a small post. To benchmark your Linux software RAID array as setup with MDADM, please use...
over a year ago
2
over a year ago
Just a small post. To benchmark your Linux software RAID array as setup with MDADM, please use my new benchmark script. I used this script to create these results. You may need to configure some values within the header of this file to make it fit your enviroment. ...
Posts on Made of...
Why node.js is cool (it's not about performance) For the past N months, it seems like there is no new technology stack that is either hotter or more...
over a year ago
2
over a year ago
For the past N months, it seems like there is no new technology stack that is either hotter or more controversial than node.js. node.js is cancer! node.js cures cancer! node.js is bad ass rock star tech!. I myself have given node.js a lot of shit, often involving the phrase...
Louwrentius
Wake On Lan not working with realtek r8168 card After messing around with different kernels on Debian Lenny, I noticed that my system did no longer...
over a year ago
2
over a year ago
After messing around with different kernels on Debian Lenny, I noticed that my system did no longer respond to WOL packets. The system is using an on-board Realtek R8168 chip which supports wake on lan. After searching and reading i found the problem. The system is using an...
Home on Erik...
Luigi success So Luigi, our open sourced workflow engine in Python, just recently passed 1,000 stars on Github,...
over a year ago
2
over a year ago
So Luigi, our open sourced workflow engine in Python, just recently passed 1,000 stars on Github, then shortly after passed mrjob as (I think) the most popular Python package to do Hadoop stuff. This is exciting!
Christian Selig
A free, 3D printable Meta Quest 3 stand People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I...
8 months ago
86
8 months ago
People were really kind and seemed to enjoy my 3D printable Apple Vision Pro stand, a stand I designed in Fusion 360 with the goal of being visually appealing and compact as it stored the headset vertically so it wouldn’t take up too much space on your desk. Turns out there were...
Christian Selig
Juno for YouTube has been removed from the App Store For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store...
2 months ago
38
2 months ago
For those not aware, a few months ago after reaching out to me, YouTube contacted the App Store stating that Juno does not adhere to YouTube guidelines and modifies the website in a way they don’t approve of, and alludes to their trademarks and iconography. I don’t personally...
detreville
🎼This Is the Worst Trip I’ve Ever Been On 🎶 (A Lengthy Vacation Post-Mortem)
7 months ago
Home on Erik...
Giving more tools to software engineers: the reorganization of the factory It's a popular attitude among developers to rant about our tools and how broken things are. Maybe...
over a year ago
2
over a year ago
It's a popular attitude among developers to rant about our tools and how broken things are. Maybe I'm an optimistic person, because my viewpoint is the complete opposite! I had my first job as a software engineer in 1999, and in the last two decades I've seen software engineering...
Arduino Blog
This ‘smocking display’ adds data physicalization to clothing Elastic use in the textile industry is relatively recent. So, what did garment makers do before...
5 months ago
63
5 months ago
Elastic use in the textile industry is relatively recent. So, what did garment makers do before elastic came along? They relied on smocking, which is a technique for bunching up fabric so that it can stretch to better fit the form of a body. Now a team of computer science...
Notes on software...
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL Next in database basics: 2. binary expressions and WHERE filters 3. indexes 4. a...
over a year ago
2
over a year ago
Next in database basics: 2. binary expressions and WHERE filters 3. indexes 4. a database/sql driver In this series we'll write a rudimentary database from scratch in Go. Project source code is available on Github. In this first post we'll build enough of a parser to...
Jonas Hietala
rustc: error while loading shared libraries: librustc_driver I had installed and used rust already but today I fired it up and received: rustc...
over a year ago
2
over a year ago
I had installed and used rust already but today I fired it up and received: rustc --version rustc: error while loading shared libraries: librustc_driver-7e44814b.so: cannot open shared object file: No such file or directory I’ve seen this before… I thought modifying...
Home on Erik...
Pinterest open sources Pinball Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two...
over a year ago
2
over a year ago
Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two blog posts: Pinball: Building workflow management (from 2014) and Open-sourcing Pinball (from this week). The author has a comment in the comments thread on Hacker News:
Notes on software...
We put a distributed database in the browser – and made a game of it This is an external post of mine. Click here if you are not redirected.
a year ago
./techtipsy
Overcoming hardware limitations: the time-to-sleep script As some of you might own, I’m still rocking a ThinkPad T430, a laptop model originally released in...
over a year ago
38
over a year ago
As some of you might own, I’m still rocking a ThinkPad T430, a laptop model originally released in 2012. It’s not the fastest laptop out there, but it is plenty fast for a number of tasks, even most software development work. I also try to keep my machines up to date and properly...
Computer Ads from...
Maxell's MF 2-DD Floppies The Gold Standard
3 weeks ago
Notes on software...
Administering Kubernetes is hard Kubernetes is easy to use after some exposure; it's pretty convenient too. But it is super hard to...
over a year ago
2
over a year ago
Kubernetes is easy to use after some exposure; it's pretty convenient too. But it is super hard to set up. eksctl is a good tool for folks who don't want to spend hours/days/weeks debugging VPC configuration in 1000s of lines of CloudFormation. None of the other tools seem to be...
Style over Substance
How to use a Phase One H20 digital back on a medium format Hasselblad V camera (500EL/M) My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my...
over a year ago
67
over a year ago
My newest purchase was a bit of a gamble. I bought a $500 Phase One H20 digital back for my Hasselblad 500EL/M medium format camera. Or, simply put, I bought an expensive old gadget for my even older analog camera, making it a digital camera. A gadget that was released in the...
Simply Explained
Static webhosting benchmark: AWS, Google, Firebase, Netlify, GitHub & Cloudflare Static websites are still a hot topic. They are fast, and they're incredibly secure because there...
over a year ago
2
over a year ago
Static websites are still a hot topic. They are fast, and they're incredibly secure because there isn't a CMS to hack. Once you build a static website, however, the question becomes: Where do I host?In other words: what is the fastest static website hosting provider in 2020?...
Bryan Braun - Blog
Capability makes your life simpler If you can tolerate discomfort, then you can camp much lighter. Camping lighter means you spend less...
4 months ago
2
4 months ago
If you can tolerate discomfort, then you can camp much lighter. Camping lighter means you spend less time and energy packing, setting-up, tearing down, and unpacking. The same goes for travel. Fewer clothes and shoes means less luggage to carry, manage, and lose. You can board...
Vitalik Buterin's...
Convex and Concave Dispositions
over a year ago
Posts on Made of...
Suggestion time: What should I blog about? I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron...
over a year ago
2
over a year ago
I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron Blogger, and I’m not totally enthusiastic about any of the items on my “to blog” list. But, I do enjoy blogging when I actually get into posts, and I’d like to keep updating this blog....
Vitalik Buterin's...
STARKs, Part II: Thank Goodness It's FRI-day
over a year ago
Applied Cartography
Incumbency Andrew Rea with an interesting and increasingly familiar take about how AI will disrupt...
5 months ago
2
5 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...
computers are bad
2024-08-31 ipmi I am making steady progress towards moving the Computers Are Bad enterprise cloud to its new home,...
3 months ago
38
3 months ago
I am making steady progress towards moving the Computers Are Bad enterprise cloud to its new home, here in New Mexico. One of the steps in this process is, of course, purchasing a new server... the current Big Iron is getting rather old (probably about a decade!) and here in...
Good Enough
TIL: Listen for JavaScript events only once! A common thing I find myself doing in Javascript is adding some event driven behavior that I only...
a year ago
2
a year ago
A common thing I find myself doing in Javascript is adding some event driven behavior that I only want to happen once. Let’s say I have a big button that starts the process of lowering a certain spy into a pool of certain doom — I don’t want a second button press to awkwardly...
computers are bad
2023-12-05 vhf omnidirectional range The term "VHF omnidirectional range" can at first be confusing, because it includes "range"---a...
a year ago
76
a year ago
The term "VHF omnidirectional range" can at first be confusing, because it includes "range"---a measurement that the technology does not provide. The answer to this conundrum is, as is so often the case, history. The "range" refers not to the radio equipment but to the space...
Notes on software...
How to recommend books, or, stop recommending SICP Many "must-read" books are not well-written. I try to read a lot, but I still have a low tolerance...
over a year ago
2
over a year ago
Many "must-read" books are not well-written. I try to read a lot, but I still have a low tolerance for bad writing and bad editing. I write this post both to discourage thoughtless recommendations and to encourage the receivers of bad recommendations. For software developers,...
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
2
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...
Notes on software...
Generating a REST API from a database I recently published an alpha version of a code generation tool, DBCore, that reads a...
over a year ago
2
over a year ago
I recently published an alpha version of a code generation tool, DBCore, that reads a database schema from PostgreSQL or MySQL and generates an entire Go API with CRUD operations, pagination, filtering, and authentication. But more than just generating code like xo/xo or...
Birchtree
AI, self-driving, and evolving your opinions on new tech over time Casey Newton on Platformer: The Phony Comforts of AI Skepticism The most persuasive way you can...
2 weeks ago
5
2 weeks ago
Casey Newton on Platformer: The Phony Comforts of AI Skepticism The most persuasive way you can demonstrate the reality of AI, though, is to describe how it is already being used today. Not in speculative sci-fi scenarios, but in everyday offices and laboratories and schoolrooms....
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
2
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...
Home on Erik...
Presentations about Spotify music recommendations A couple of people in my old team have been around talking about how Spotify does music...
over a year ago
2
over a year ago
A couple of people in my old team have been around talking about how Spotify does music recommendations and put together some quite good presentations. First one is Neville Li's presentation about Scala Data Pipelines @ Spotify:
watchTowr Labs -...
Veeam Backup & Response - RCE With Auth, But Mostly Without Auth (CVE-2024-40711) Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup &...
3 months ago
2
3 months ago
Every sysadmin is familiar with Veeam’s enterprise-oriented backup solution, ‘Veeam Backup & Replication’. Unfortunately, so is every ransomware operator, given it's somewhat 'privileged position' in the storage world of most enterprise's networks. There's no point deploying...
Jonas Hietala
Netrunner Spring Tournament There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very...
over a year ago
2
over a year ago
There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very casual setting but there were also some guys who came from… Västerås I think, but I’m not sure. We managed to scrape together 9 people at least, and I didn’t notice anyone bringing...
Willem's Blog
Wearing WHOOP 4.0 Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror...
over a year ago
2
over a year ago
Use WHOOP to see the impact your choices have on your body, think of it as a special kind of mirror - it's so powerful, that I don't take mine off!
Vitalik Buterin's...
Should Ethereum be okay with enshrining more things in the protocol?
a year ago
./techtipsy
Running on fumes After a run-of-the-mill Windows BSOD, I was redirected to the UEFI settings and was presented with...
over a year ago
25
over a year ago
After a run-of-the-mill Windows BSOD, I was redirected to the UEFI settings and was presented with this fun little bug: 0GB ought to be enough for anybody.
Home on Erik...
Calculating cosine similarities using dimensionality reduction This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity...
over a year ago
2
over a year ago
This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity Computation (DISCO) I just glanced at the paper, and there's some cool stuff going on from a theoretical perspective. What I'm curious about is why they didn't decide to use...
lcamtuf’s thing
Electric chainsaws and the gorge of misery Lithium batteries are great -- so why do mid-size electric power tools suck in 2024?
4 months ago
Birchtree
When do the Trump flags come down? (members post) The flags are still flying, celebrating the man, not the country. Why is this something that happens...
a week ago
4
a week ago
The flags are still flying, celebrating the man, not the country. Why is this something that happens now, and why is it something only happening on one end of the political spectrum?
Arduino Blog
Receive an alert when your device goes offline in Arduino Cloud You’re managing a network of IoT sensors that monitor air quality across multiple locations....
a month ago
13
a month ago
You’re managing a network of IoT sensors that monitor air quality across multiple locations. Suddenly, one of the sensors goes offline, but you don’t notice until hours later. The result? A gap in your data and a missed opportunity to take corrective action. This is a common...
Vitalik Buterin's...
Some ways to use ZK-SNARKs for privacy
over a year ago
Jonas Hietala
Printing Hextraction for my kids A session of Hextraction, a 3D printed board game. I did it. I made something actually useful with...
10 months ago
2
10 months ago
A session of Hextraction, a 3D printed board game. I did it. I made something actually useful with my 3D printer instead of just tinkering with it. I printed Hextraction, a very cool 3D printed board game for my kids—and they love it. Hextraction is a gamified marble run, where...
Arduino Blog
Introducing Opta Expansions: scalable simplicity! Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and...
7 months ago
46
7 months ago
Last year, we launched the Arduino Pro Opta: it was an instant success with our community, and allowed us to reach PLC engineers with a new solution specifically designed for their needs.  To further expand Opta’s capabilities, today the Arduino ecosystem welcomes various...
Willem's Blog
Fietselfstedentocht 2017 Cycling the 235KM long Fietselfstedentocht through Friesland
over a year ago
Posts on Made of...
wpa_supplicant: GUI and wpa_action I’ve made two new interesting discoveries about wpa_supplicant since writing my last blog post on...
over a year ago
3
over a year ago
I’ve made two new interesting discoveries about wpa_supplicant since writing my last blog post on the subject. (Actually, I pretty much made both of them while reading documentation in order to write it, and have been lame about writing them up). Using wpa_gui It turns out that...
Computer Ads from...
Page 6 Magazine Interviews the Godfather of Adventure Games, Scott Adams Scott McNealy talks about Sun Microsystems, RISC, UNIX, and NeXT
4 months ago
Good Enough
TIL: Use touch-action: manipulation; to avoid double-tap-to-zoom Recently we built and launched A Good Enough Guestbook, a place where you can send us doodles and...
a year ago
2
a year ago
Recently we built and launched A Good Enough Guestbook, a place where you can send us doodles and they’ll print out on our little printer. It’s quite lovely and fun, and you should send us a doodle. We might also have more in store for these printers in the future. In the...
Posts on Made of...
Getting carried away with hack value Recently, I’ve been working on some BarnOwl branches that move more of the core functionality of...
over a year ago
2
over a year ago
Recently, I’ve been working on some BarnOwl branches that move more of the core functionality of BarnOwl into perl code, instead of C (BarnOwl is written in an unholy mix of C and perl code that call each other back and forth obsessively). Moving code into perl has many...
Jonas Hietala
Why I don't rely on AI for programming (too much) I find that ai can help significantly with doing plumbing, but it has no problems with connecting...
a month ago
4
a month ago
I find that ai can help significantly with doing plumbing, but it has no problems with connecting the pipes wrong. I need to double and triple check the updated code - or fix the resulting errors when I don’t do that. thih9 on Hacker News I’ve been skeptical of the AI craze...
Louwrentius
HP Proliant Microserver N40L is a great NAS or Router Update 2012-12-11: It seems that a new and faster version is on the horizon. Update 2012-12-21:...
over a year ago
2
over a year ago
Update 2012-12-11: It seems that a new and faster version is on the horizon. Update 2012-12-21: Yes, the new model G7 N54L is out. Some products seem almost too good to be true and I think the HP Proliant Microserver N40L is one of them. If you are into the market for a very...
Computer Ads from...
UNIX Review Magazine Interviews Larry Tesler They discuss Tesler's involvement with Xerox, Apple and office automation with Unix.
3 months ago
Simply Explained
Analyzing Link Rot in My Newsletter (After 31 Editions) I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to...
a year ago
2
a year ago
I've been writing a monthly newsletter for the past 2.5 years. In every edition, I link to interesting articles related to science and technology. I thought it would be interesting to analyze how many of those links are still accessible, and how many have succumbed to link rot....
Style over Substance
My grandfather’s Rolleiflex 2.8D twin-lens reflex (TLR) camera One of the first vintage cameras I ever got was my dad’s old Polaroid SX-70. Like so many family...
over a year ago
63
over a year ago
One of the first vintage cameras I ever got was my dad’s old Polaroid SX-70. Like so many family cameras it had disappeared into a closet decades ago and was only found again recently. When he gave it to me, he told me there was another classic camera he wanted to give me – if...
Construction Physics
Do U.S. Ports Need More Automation? On October 1st, 47,000 members of the International Longshoremen's Association (ILA), primarily...
2 months ago
43
2 months ago
On October 1st, 47,000 members of the International Longshoremen's Association (ILA), primarily dockworkers on East and Gulf Coast ports, went on strike after failing to agree contract terms with USMX, an alliance of port operators and employers.
Louwrentius
Why Debian/Ubuntu Linux is to be preferred There are many Linux distributions around. However, I always come back to just one: Debian. The...
over a year ago
2
over a year ago
There are many Linux distributions around. However, I always come back to just one: Debian. The reason why so many people use Debian is the same reason I like it so much: software management.  With good old apt-get or the new aptitude, software is installed within minutes. Due to...
Home on Erik...
Predicting solar eclipses with Python As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute...
8 months ago
2
8 months ago
As I am en route to see my first total solar eclipse, I was curious how hard it would be to compute eclipses in Python. It turns out, ignoring some minor coordinate system head-banging, I was able to get something half-decent working in a couple of hours.
Jonas Hietala
Doing Stuff The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left...
over a year ago
2
over a year ago
The school and my life is trotting along. I’m handling the extra course fine, but instead I’ve left the standard math course behind a bit. Actually more than a bit but hopefully I’ll correct things later. No my life is going along just fine, it almost feels like my life is runing...
Simply Explained
How I Structure My ESPHome Config Files I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know...
over a year ago
3
over a year ago
I'm a big fan of ESPHome. I have 24 devices running it, and I only buy new IoT devices when I know they can run ESPHome.ESPHome is a modular firmware that you have to configure with YAML files. You define what components it should load and how it should talk to the hardware of...
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
2
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....
Louwrentius
Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin If you want to compile PAR2 with multicore support on Linux, it may not work right away from source....
over a year ago
2
over a year ago
If you want to compile PAR2 with multicore support on Linux, it may not work right away from source. I used this version of PAR2 with multicore support. Update 2015: the original link is dead, I foud a copy of the source and put it on my own site here for you to download. First,...
detreville
Father's Day (First posted on Father's Day, 2022.)
a year ago
Computer Ads from...
Bible Research Systems' THE WORD Processor For Those Who Seek.
5 months ago
Jonas Hietala
Resurrection Aah what a nice summer! It was nice to be back in Övertorneå, doing nothing in particular. Just not...
over a year ago
2
over a year ago
Aah what a nice summer! It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
Vitalik Buterin's...
Some personal user experiences
a year ago
Home on Erik...
The software engineering rule of 3 Here's a dumb extremely accurate rule I'm postulating* for software engineering projects: *you need...
over a year ago
2
over a year ago
Here's a dumb extremely accurate rule I'm postulating* for software engineering projects: *you need at least 3 examples before you solve the right problem*. This is what I've noticed: Don't factor out shared code between two classes.
Louwrentius
8 TB RAID 6 Linux software RAID using EXT4 Mobo: Asus P5Q-EM DO ( 6x sata) CPU: Core 2 Duo E7400 RAM: 4 GB Controller; HighPoint RocketRAID...
over a year ago
2
over a year ago
Mobo: Asus P5Q-EM DO ( 6x sata) CPU: Core 2 Duo E7400 RAM: 4 GB Controller; HighPoint RocketRAID 2314 (16x poorten) PSU: CooMas Silent Pro M 600W ATX2 (definitely not overkill) HD: Samsung 1 TB SAT2 HD103UJ (10x) OS: Debian Lenny with custom kernel (backported) FS: EXT4 RAID...
Home on Erik...
Momentum strategies Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday...
over a year ago
2
over a year ago
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday night. Basically I wanted to know whether momentum strategies work well for international stock indexes. I spent a bit of time putting together a strategy that buys the stock index if...
./techtipsy
AMD Ryzen 7 5700G: first impressions on Fedora 34 Introduction I’ve covered my self-hosting setup in a previous post. It has been a couple of months...
over a year ago
44
over a year ago
Introduction I’ve covered my self-hosting setup in a previous post. It has been a couple of months and the setup has mostly been fine. Sure, the power usage was pretty big under load, and yes, my internet did cut out every time I turned the VM on with all the services starting,...
Jonas Hietala
Let's create a Tree-sitter grammar One of my favorite features in Neovim is the Tree-sitter integration. It allows for fast syntax...
9 months ago
2
9 months ago
One of my favorite features in Neovim is the Tree-sitter integration. It allows for fast syntax highlighting that works well even in an error state (often the case when you’re editing code), and it has additional semantics (you can differentiate between function parameters and...
Electronics etc…
Fake Parallel Printer - A Parallel Port Traffic Capturing Tool Introduction What Is Out There? The Parallel Printer Port Fake Printer Top Level Design Choices Fake...
a year ago
61
a year ago
Introduction What Is Out There? The Parallel Printer Port Fake Printer Top Level Design Choices Fake Printer HW Details PCB Revision 1 PCB Revision 2 Firmware Building a Fake Printer Tool Yourself Programming the Raspberry Pico Fake Printer as a USB Serial Device on your...
Vitalik Buterin's...
On Radical Markets
over a year ago
Simply Explained
Building Air Quality Sensor: Luftdaten + Home Assistant Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the...
over a year ago
2
over a year ago
Luftdaten (now Sensor Community) is a global sensor network that measures air quality around the world. Best of all: it's open-source and anyone can build a sensor.I was very curious to see the air quality in my neighborhood, so I decided to build myself a sensor. And of course,...
Abort Retry Fail
The History of Commodore, Part 4 The Amiga, The Decline, The Fall
a year 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
2
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...
Louwrentius
Benchmark results of Random I/O performance of different RAID levels Introduction I have performed some benchmarks to determine how different RAID levels perform when...
over a year ago
2
over a year ago
Introduction I have performed some benchmarks to determine how different RAID levels perform when handling a 100% random workload of 4K requests. This is a worst-case scenario for almost every storage subsystem. Normal day-to-day workloads may not be that harsh in a real-life...
Willem's Blog
Half Marathon Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness -...
9 months ago
2
9 months ago
Discover my journey from noob to (half) marathon finisher and how I balanced data with fitness - read about my experiences!
Willem's Blog
Different ways to visualise health To better understand how to visualise health I looked at different health/fitness apps and games.
over a year ago
Simply Explained
ESP32 Cam: cropping images on device The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640...
over a year ago
3
over a year ago
The ESP32 camera is the cheapest microcontroller with a built-in camera that you can buy. The OV2640 sensor has a max resolution of 1600x1200, but sometimes you don't need the entire image.In this post I'll show how to crop the images on the ESP32 itself, before sending it of to...
Christian Selig
Choosing a travel pack is hard I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines...
7 months ago
87
7 months ago
I love the “carry-on only” traveling style, it’s cheaper and you don’t have to worry about airlines losing your stuff. Outside of requiring a bit more planning, what’s not to love? Turns out this is a beloved product category with a passionate community behind it, and as a result...
Home on Erik...
A brief history of Hadoop at Spotify I was talking with some data engineers at Spotify and had a moment of nostalgia. 2008 I was writing...
over a year ago
2
over a year ago
I was talking with some data engineers at Spotify and had a moment of nostalgia. 2008 I was writing my master's thesis at Spotify and had to run a Hadoop job to extract some data from the logs.
Neil Madden
Some incomplete thoughts about Gödel I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve...
over a year ago
2
over a year ago
I saw another article on Gödel’s incompleteness theorems linked from Reddit today. It’s a topic I’ve wanted to write about for some time. Although many articles do a decent job in giving an idea of what the big deal is (and this one is pretty good), they can sometimes give a...
Posts on Made of...
A Brief Introduction to termios: Signaling and Job Control (This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read...
over a year ago
2
over a year ago
(This is part three of a multi-part introduction to termios and terminal emulation on UNIX. Read part 1 or part 2 if you’re new here) For my final entry on termios, I will be looking at job control in the shell (i.e. backgrounding and foreground jobs) and the very closely related...
lcamtuf’s thing
The 101 of analog signal filtering Some intuition about this topic can be developed without summoning the ghost of Pierre-Simon...
5 months ago
Louwrentius
Benchmarking storage with Fio and generating charts of the results Introduction Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of...
over a year ago
2
over a year ago
Introduction Fio is a widely-used tool for performing storage benchmarks. Fio offers a lot of options to create a storage benchmark that would best reflect your needs. Fio allows you to assess if your storage solution is up to its task and how much headroom it has. Fio outputs...
Jonas Hietala
Ludum Dare 22 results! The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was...
over a year ago
2
over a year ago
The results from Ludum Dare 22 are in! I made the game Sat-E for the 48 hour competition and I was quite happy with it. #24 Community 3.71 #40 Fun 3.38 #49 Theme 3.69 #65 Overall 3.42 #95 Humor 2.82 #167 Mood 2.92 #247 Innovation 2.69 #338 Audio 2.23 #340 Graphics 2.62 #376...
Jonas Hietala
addwatch: resource exhausted While tampering with Hakyll and running site preview I stumbled upon this error message: site:...
over a year ago
2
over a year ago
While tampering with Hakyll and running site preview I stumbled upon this error message: site: addWatch: resource exhausted (No space left on device) At first I tried to clear /tmp but, so clearly the device did have some space left. After a bit of googling I found a solution...
Computer Ads from...
Creative Computer Publishes Interview with the Guy Behind the Death Star Trench Run (1978) An Interview With Star Wars Animator Larry Cuba
8 months ago
Jonas Hietala
A * After a few hours of coding I’ve made a little, little, bit of progress but it took a lot longer...
over a year ago
3
over a year ago
After a few hours of coding I’ve made a little, little, bit of progress but it took a lot longer than I would have liked. I’ve basically managed to make a world and some tiles in the world and we have a worker who can move around on the tiles and he can’t move on all...
computers are bad
2023-03-13 the door close button This will probably be a short one, and I know I haven't written for a while, but it has always been...
a year ago
42
a year ago
This will probably be a short one, and I know I haven't written for a while, but it has always been the case that you get what you pay for and Computers Are Bad is nothing if not affordable. Still, this is a topic on which I am moderately passionate and so I can probably stretch...
Jonas Hietala
2018 in review A new year and a lingering feeling of not having done enough during the year. A fast review of the...
over a year ago
2
over a year ago
A new year and a lingering feeling of not having done enough during the year. A fast review of the year usually makes me feel better. 2018 non-geek achievements Was on parental leave for about 7 months. It was great although I’ve been crawling up the walls a little the last...
Good Enough
Fixing Things In 2009 I started doing something called "business travel." I bought a piece of dependable luggage:...
a year ago
2
a year ago
In 2009 I started doing something called "business travel." I bought a piece of dependable luggage: the Travelpro WalkAbout Lite 2 22" Rollaboard Suiter. The reality was that this wasn't proper business travel. First, it'd only be two or three round-trip flights a year. Second,...
./techtipsy
Anything's a portable speaker if you're brave enough I hate buying things that are single-purpose, which is why I ended up with this setup. Take a...
a year ago
55
a year ago
I hate buying things that are single-purpose, which is why I ended up with this setup. Take a speaker, a battery, put them together, and what you now have is a portable speaker. Since I had access to both, I felt no need to buy a separate portable speaker for use in social...
Home on Erik...
Exploding offers are bullshit I do a lot of recruiting and have given maybe 50 offers in my career. Although many companies do, I...
over a year ago
2
over a year ago
I do a lot of recruiting and have given maybe 50 offers in my career. Although many companies do, I never put a deadline on any of them. Unfortunately, I've often ended up competing with other companies who do, and I feel really bad that this usually tricks younger developers...
Good Enough
Season 3, Issue 1: Whale, Hello There! Dear friends, we have not been good at writing this newsletter regularly. But writing is hard work,...
a year ago
2
a year ago
Dear friends, we have not been good at writing this newsletter regularly. But writing is hard work, and there’s only so much time we have, and there was the winter break and Shawn kept getting sick—we have many excuses, how much time do you have? Gosh, since July of last year?...
Applied Cartography
Weird test: internal link checking I wrote last month about using weird tests. Here's another example: checking for broken internal...
8 months ago
1
8 months ago
I wrote last month about using weird tests. Here's another example: checking for broken internal links in our upcoming docsite redesign! const extractInternalLinks = (content: string): string[] => { // Check for internal links only, in the form of [text](/path). const...
Home on Erik...
Headcount goals, feature factories, and when to hire those mythical 10x people When I started building up a tech team for Better, I made a very conscious decision to pay at the...
over a year ago
2
over a year ago
When I started building up a tech team for Better, I made a very conscious decision to pay at the high end to get people. I thought this made more sense: they cost a bit more money to hire, but output usually more than compensates for it.
Abort Retry Fail
The Birth of Windows Gaming Software is a fluid that expands to fill its container
a year ago
Electronics etc…
Analyzing the Monoprice Blackbird HDCP 2.2 to 1.4 Down Converter Introduction Some Words about HDCP Inside the Monoprice Blackbird 4K Pro The Test Digging Deeper:...
a year ago
83
a year ago
Introduction Some Words about HDCP Inside the Monoprice Blackbird 4K Pro The Test Digging Deeper: UART Transactions Decoding HDCP I2C Transactions The Legality of It All References Footnotes Introduction I got my hands on a Monoprice Blackbird 4K Pro HDCP 2.2 to 1.4...
Arduino Blog
What if robots could communicate with humans by emitting scents? Almost all human-robot interaction (HRI) approaches today rely on three senses: hearing, sight, and...
5 months ago
54
5 months ago
Almost all human-robot interaction (HRI) approaches today rely on three senses: hearing, sight, and touch. Your robot vacuum might beep at you, or play recorded or synthesized speech. An LED on its enclosure might blink to red to signify a problem. And cutting-edge humanoid...
Notes on software...
An effective product manager There are three specific activities I have loved in some product managers I've worked with (and...
a year ago
2
a year ago
There are three specific activities I have loved in some product managers I've worked with (and missed in others). tldr; Talk with customers and prospects Develop and share a vision Evangelize Talk with customers and prospects As a product manager, your superpower over...
Old Vintage...
Programming the Convergent WorkSlate's spreadsheet microcassette future In this particular future, we will all use handheld spreadsheets stored on microcassettes, talking...
3 months ago
46
3 months ago
In this particular future, we will all use handheld spreadsheets stored on microcassettes, talking to each other via speakerphone, and probably listening to Devo and New Order a lot. (Though that part isn't too different from my actual present.) a computer whose manufacturer...
computers are bad
2023-10-15 go.com Correction: a technical defect in my Enterprise Content Management System resulted in the email...
a year ago
110
a year ago
Correction: a technical defect in my Enterprise Content Management System resulted in the email having a subject that made it sound like this post would be about the classic strategy game Go. It is actually about a failed website. I regret the error; the responsible people have...
Neil Madden
Newsletter Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably...
11 months ago
2
11 months ago
Happy new year! I’m hoping to write a few posts on here over the next few weeks, but probably exploring a few topics around AI and philosophy. If you’d prefer some more technical content around security and cryptography, then take a look at the newsletter I put out for my...
Applied Cartography
Bluesky is good Three months ago, I wrote Bluesky et al, in which I walked through the various platforms vying for...
a week ago
6
a week ago
Three months ago, I wrote Bluesky et al, in which I walked through the various platforms vying for the dubious title of "Twitter's successor" and landed on Bluesky as being my favorite, perhaps less out of its ostensible inherent virtues and more out of the size of its...
Willem's Blog
Giving AI Training Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent...
a year ago
2
a year ago
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent AI training session that's reshaping professional landscapes.
Style over Substance
Guy’s Cool Tools This is a placeholder post! I’m a huge fan of Kevin Kelly’s Cool Tools site and have loved their...
over a year ago
85
over a year ago
This is a placeholder post! I’m a huge fan of Kevin Kelly’s Cool Tools site and have loved their recommendations for years. So much, so that I even started a Pinterest board filled with my own recommendations. But after a few years of running into the limitations of the form, I...
Posts on Made of...
A brief look at Linux's security record After the fuss of the last two weeks because of CVE-2010-3081 and CVE-2010-3301, I decided to take a...
over a year ago
2
over a year ago
After the fuss of the last two weeks because of CVE-2010-3081 and CVE-2010-3301, I decided to take a look at a handful of the high-profile privilege escalation vulnerabilities in Linux from the last few years. So, here's a summary of the ones I picked out. There are also a large...
Arduino Blog
Create your own affordable Arduino-powered smart glasses When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the...
7 months ago
89
7 months ago
When Google Glass launched in 2013, the public opinion seemed to be “interesting technology, but the world isn’t ready yet.” Now that more than a decade has passed, the world may finally be ready — especially with the omission of controversial features like video recording. If...
Notes on software...
Checking linearizability in Go You want to check for strict consistency (linearizability) for your project but you don't want to...
a month ago
4
a month ago
You want to check for strict consistency (linearizability) for your project but you don't want to have to deal with the JVM. Porcupine, used by a number of real-world systems like etcd and TiDB, has you covered! Importantly, neither Jepsen projects nor Porcupine can...
Matt Blewitt
Modifying pg_dump To Exclude Event Triggers At $WORK, we have a case where we have implemented an event trigger to prevent customers from...
5 months ago
2
5 months ago
At $WORK, we have a case where we have implemented an event trigger to prevent customers from dropping an extension. As this extension is part of contrib and normally installed by users, we can’t prevent them from dropping it normally. However, event triggers can only be created...
Ken Shirriff's blog
Antenna diodes in the Pentium processor I was studying the silicon die of the Pentium processor and noticed some puzzling structures...
4 weeks ago
6
4 weeks ago
I was studying the silicon die of the Pentium processor and noticed some puzzling structures where signal lines were connected to the silicon substrate for no apparent reason. Two examples are in the photo below, where the metal wiring (orange) connects to small square regions of...
Computer Ads from...
IBM RISC System/6000 Family Just when PowerSeeker thought they had nowhere to go...
7 months ago
Vitalik Buterin's...
How do layer 2s really differ from execution sharding?
7 months ago
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
37
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...
Home on Erik...
Dollar cost averaging (I accidentally published an unfinished draft of this post a few days ago – sorry about...
over a year ago
2
over a year ago
(I accidentally published an unfinished draft of this post a few days ago – sorry about that). There's a lot of sources preaching the benefits of dollar cost averaging, or the practice of investing a fixed amount of money regularly.
Good Enough
TIL: Overriding Permalink Generation in FriendlyId FriendlyId is a helpful Ruby gem that streamlines creating permalinks and slugs for Rails...
3 months ago
2
3 months ago
FriendlyId is a helpful Ruby gem that streamlines creating permalinks and slugs for Rails applications. In Pika we're using it to help with generating permalinks for blog posts and pages as well as slugs for tags. When a customer wrote in with a request to modify the behavior of...
Computer Ads from...
Dipco's Easy Reader "Sight for Sore Eyes"
a month ago
./techtipsy
Life is maintenance, maintenance is life Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building...
a year ago
47
a year ago
Over my relatively short career (6+ years), I’ve noticed a change in the way I approach building things. When I was still an inexperienced junior developer who barely survived operating in a Linux environment and saw backend development as a black box, I was happy to get...
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
watchTowr Labs -...
Cleo Harmony, VLTrader, and LexiCom - RCE via Arbitrary File Write (CVE-2024-50623) We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators...
a week ago
6
a week ago
We were having a nice uneventful week at watchTowr, when we got news of some ransomware operators using a zero-day exploit in Cleo MFT software - namely, LexiCom, VLTransfer, and Harmony - applications that many large enterprises rely on to share files securely. Cleo have a...
Arduino Blog
These Shattered Space helmet replicas stay video game accurate using an Arduino Nano Starfield, a game set in the vast expanse of our galaxy, is receiving a new expansion called...
2 months ago
17
2 months ago
Starfield, a game set in the vast expanse of our galaxy, is receiving a new expansion called “Shattered Space” in which players can don novel weapons and gear to take on the latest challenge. As part of its release, the expansion’s publisher Bethesda reached out to cosplayer...
Arduino Blog
This UNO R4 WiFi-controlled device streamlines a restaurant’s online order system Most successful restaurants operating today have to take advantage of online ordering, as a huge...
4 months ago
58
4 months ago
Most successful restaurants operating today have to take advantage of online ordering, as a huge chunk of customers have switched to takeout and delivery. But point-of-sale (POS) systems don’t always integrate well into a kitchen’s workflow and that can lead to missed orders —...
Jonas Hietala
Establishing Habits with Habitica I have used Habitica the last 18 months to organize my habits and things I want to get done. I...
over a year ago
2
over a year ago
I have used Habitica the last 18 months to organize my habits and things I want to get done. I believe it all started with an amazing book called The Power of Habit which describes the amazing benefits habits can give, both in the context of your own life but also in business....
Willem's Blog
Clouds below my floor Building a little datacenter in my basement utilising a very fast internet connection.
over a year ago
Willem's Blog
Cleaning a vintage watch This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old...
over a year ago
2
over a year ago
This week I cleaned an automatic vintage watch and fitted it to with a new strap, rediscovering old beauty underneath layers of dirt!
Home on Erik...
MCMC for marketing data The other day I was looking at marketing spend broken down by channel and wanted to compute some...
over a year ago
2
over a year ago
The other day I was looking at marketing spend broken down by channel and wanted to compute some simple uncertainty estimates. I have data like this: <th> Total spend </th> <th> Transactions </th> Channel A <td> 2292.
Applied Cartography
Bozos Kevin Twohy has a list of heuristics for new projects/clients, and my favorite is simple: No Bozos....
a month ago
4
a month ago
Kevin Twohy has a list of heuristics for new projects/clients, and my favorite is simple: No Bozos. Simple policy. No exceptions. You know it when you see it. Every founder has a story about the time that they ignored the red flags and bent over backwards for a particularly...
Jonas Hietala
Battling burnout Mamma Mia! Here we go again… Once again, I’m finding myself trying to recover from burnout, and...
a year ago
2
a year ago
Mamma Mia! Here we go again… Once again, I’m finding myself trying to recover from burnout, and after about a year I’m finally feeling more like myself. Even though I’ve been here before, it’s a difficult thing to recognize and avoid, so I’m writing this to maybe help you or my...
Simply Explained
Serverless Anagram Solver with Cloudflare R2 and Pages Six years ago, I reworked my anagram solver so it would run on top of AWS Lambda and DynamoDB....
over a year ago
2
over a year ago
Six years ago, I reworked my anagram solver so it would run on top of AWS Lambda and DynamoDB. However, this year I realized I didn't need server-side code or a database at all. I could make it completely static by pre-computing anagram solutions.
Jonas Hietala
Understanding the Computer When I discovered programming it felt like a whole new world opened up for me with endless...
over a year ago
2
over a year ago
When I discovered programming it felt like a whole new world opened up for me with endless possibilities. It granted unlimited power and I could create virtually anything and it explained so much to me - how did a program work? How could you make a game or a website? But there...
Matt Blewitt
A Love Letter to Giant Robots Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first...
6 months ago
1
6 months ago
Ah, giant robots. I grew up thinking they are the coolest things ever, and I still do. My first exposure to them was probably through 1994’s BattleTech animated series, where Adam Steiner piloted an AXM-2N Axman, in its frankly ridiculous neon green and purple paint job. And from...
Arduino Blog
7 powerful ways to integrate Collaborative Coding into education with the Arduino Cloud Collaborative coding in education can be a game-changer for students, providing them with real-world...
2 months ago
19
2 months ago
Collaborative coding in education can be a game-changer for students, providing them with real-world skills in communication, teamwork, and problem-solving. With the new collaborating coding feature of the Arduino Cloud, students can collaborate in real time on coding projects,...
Engineers Need Art
Soft Dorothy Software — Shareware Projects Wherein I attempt to recover and restore old shareware code and program again like it's 1989.
3 months ago
Willem's Blog
Using a budget Android as main smartphone I switched to Android to find out how good a budget smartphone performs compared to an expensive...
over a year ago
Lighthouse Blog
How to combine multiple RSS feeds in one view
6 months ago
Louwrentius
Linux Mac Mini - temperature monitoring with lm-sensors This post is about getting temperature monitoring to work with a Mac Mini running Linux. Using...
over a year ago
2
over a year ago
This post is about getting temperature monitoring to work with a Mac Mini running Linux. Using Debian Lenny, out of the box, lm-sensors is not working. No sensors can be found. This is how temperature monitoring and fan speed monitoring can be made to work: modprobe applesmc If...
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
42
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...
Nabeel S. Qureshi
How To Understand Things The smartest person I’ve ever known had a habit that, as a teenager, I found striking...
over a year ago
Avestura's Blog
How to change visibility in massive GitHub organizations like EpicGames? How to publicize and un-publicize your visibility in massive GitHub orgs?
over a year ago
Arduino Blog
Discover the new Arduino UNO SPE Shield: the quick and easy way to advanced connectivity Arduino and Microchip are excited to open electronica – the “world’s leading trade fair and...
a month ago
24
a month ago
Arduino and Microchip are excited to open electronica – the “world’s leading trade fair and conference for electronics” – by introducing the Arduino UNO SPE Shield, a powerful ally to bring advanced connectivity to new and existing projects, with Single-Pair Ethernet (SPE) and...
Vitalik Buterin's...
The different types of ZK-EVMs
over a year ago
Arduino Blog
Track the location history of your devices in Arduino Cloud IoT dashboards Asset tracking has become increasingly crucial across various industries and applications. Whether...
6 months ago
41
6 months ago
Asset tracking has become increasingly crucial across various industries and applications. Whether you’re a logistics company monitoring your fleet, a conservation organization tracking wildlife, or an individual passionate about outdoor adventures, the ability to track and...
Vitalik Buterin's...
Exploring circle STARKs
5 months ago
OH8HUB’s Substack
Spring ham radio activation of Korkattivuori (Mt. Korkatti) Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature...
a year ago
57
a year ago
Korkattivuori (“Mount Korkatti”, 186m above sea level) is a small hill and Natura 2000 nature reserve area near town Haapavesi (pop. 6588) in Finland. The nature reserve area consist of short family friendly hiking path of approximately 1.5km. One end of the path has parking...
./techtipsy
Zimaboard: the closest thing to my dream home server setup I stumbled upon this Hardware Haven video about the Zimaboard recently. I liked it a lot. I finally...
a year ago
93
a year ago
I stumbled upon this Hardware Haven video about the Zimaboard recently. I liked it a lot. I finally bought one. In short, Zimaboard is a small single-board computer that is relatively affordable and comes with an interesting selection of ports, which includes an exposed PCI...
Good Enough
Lettini is Good Enough We put a lot of ourselves into our work, and it occurs to us that you, dear reader, might not know...
a year ago
2
a year ago
We put a lot of ourselves into our work, and it occurs to us that you, dear reader, might not know much about us. So we’re starting a new Q&A column to introduce ourselves, one-at-a-time, starting with our resident designer… Who the hell do you think you are? 👋 Hello, I’m...
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
4
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...
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
2
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...
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
2
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.
Home on Erik...
Developer experience as a competitive advantage I spent a ton of time looking at different software providers, both as a CTO, and as a nerd...
over a year ago
2
over a year ago
I spent a ton of time looking at different software providers, both as a CTO, and as a nerd “advanced” consumer who builds stuff in my spare time. In the last 10 years, there has been an order of magnitude more products that cater directly to developers, through APIs, SDKs, and...
Lighthouse Blog
Updates August 19
4 months ago
Ken Shirriff's blog
Inside a ferroelectric RAM chip Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special...
2 months ago
2
2 months ago
Ferroelectric memory (FRAM) is an interesting storage technique that stores bits in a special "ferroelectric" material. Ferroelectric memory is nonvolatile like flash memory, able to hold its data for decades. But, unlike flash, ferroelectric memory can write data...
Willem's Blog
Tablet as main computer I have been using a tablet as my main computer for quite some time now. In this blog post I share...
over a year ago
2
over a year ago
I have been using a tablet as my main computer for quite some time now. In this blog post I share you my experience on using Surface Pro and iPad Pro to get my work done.
./techtipsy
FOSDEM 2024: my experience, some notes and tech tips I finally went to FOSDEM. I’m sleep-deprived, completely exhausted, but incredibly excited about the...
10 months ago
79
10 months ago
I finally went to FOSDEM. I’m sleep-deprived, completely exhausted, but incredibly excited about the whole experience. I’ve split this post into three separate sections. overall notes on the conference and the city less technical, but sheds light on the FOSDEM experience the...
Posts on Made of...
Some opinionated thoughts on SQL databases People who work with me tend to realize that I have Opinions about databases, and SQL databases in...
over a year ago
2
over a year ago
People who work with me tend to realize that I have Opinions about databases, and SQL databases in particular. Last week, I wrote about a Postgres debugging story and tweeted about AWS’ policy ban on internal use of SQL databases, and had occasion to discuss and debate some of...
Lighthouse Blog
Lighthouse now integrates with mobile reader apps
5 months ago
Applied Cartography
Meta's two assets (Epistemic disclaimer: there are few Extremely Big Tech Companies to whom I feel apathy more vividly...
a month ago
4
a month ago
(Epistemic disclaimer: there are few Extremely Big Tech Companies to whom I feel apathy more vividly than Meta. I had a Facebook account in high school and college and got rid of it at some point post-graduation, though I'd be hard-pressed to tell you when exactly that was.) It...
Odds and Ends of...
Here's how AI can REDUCE health misinformation How the government can build a bullshit detector
2 months ago
Notes on software...
Exploring a Postgres query plan I learned this week that you can intercept and redirect Postgres query execution. You can hook into...
a year ago
2
a year ago
I learned this week that you can intercept and redirect Postgres query execution. You can hook into the execution layer so you're given a query plan and you get to decide what to do with it. What rows to return, if any, and where they come from. That's very interesting. So I...
Willem's Blog
From tree to table Creating a night stand from a raw slab of chestnut wood.
over a year ago
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
2
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...
Simply Explained
How I Built an NFC Movie Library for my Kids When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to...
a year ago
2
a year ago
When I was a kid, my sister and I had a tower of VHS tapes we watched endlessly. Fast-forward to today, and my children's movie collection is vastly different. It's completely digital and dispersed across services. I wanted to recreate the tangible magic of my childhood for them.
Home on Erik...
NYC Machine Learning meetup From the NYC Machine Learning talk I had last week: Haven't looked at it yet except briefly....
over a year ago
2
over a year ago
From the NYC Machine Learning talk I had last week: Haven't looked at it yet except briefly. Unfortunately the quality isn't the best.
Vitalik Buterin's...
An incomplete guide to stealth addresses
a year ago
Jonas Hietala
Rewriting my Neovim config in Lua This screenshot betrays just how much productive time was wasted setting this up. I’ve got tons of...
a year ago
2
a year ago
This screenshot betrays just how much productive time was wasted setting this up. I’ve got tons of things to do; clean the bathrooms, prototype an idea for a SaaS and ponder world peace. So naturally the procrastination took over and I rewrote my Neovim configuration in...
Louwrentius
Please use ZFS with ECC Memory In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a...
over a year ago
2
over a year ago
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a NAS. I would argue that if you do not use ECC memory, it's reasonable to also forgo on ZFS altogether and use any (legacy) file system that suits your needs. Why ZFS? Many people...
watchTowr Labs -...
IBM QRadar - When The Attacker Controls Your Security Stack (CVE-2022-26377) Welcome to April 2024. A depressing year so far - we've seen critical vulnerabilities across a wide...
8 months ago
2
8 months ago
Welcome to April 2024. A depressing year so far - we've seen critical vulnerabilities across a wide range of enterprise software stacks. In addition, we've seen surreptitious and patient threat actors light our industry on fire with slowly introduced backdoors in the XZ...
Vitalik Buterin's...
Zmowa
over a year ago
Arduino Blog
Patrol the pool with this Arduino Nano-powered DIY RC submarine There is something inherently intriguing about submarines that doesn’t seem to apply to other...
4 months ago
49
4 months ago
There is something inherently intriguing about submarines that doesn’t seem to apply to other vehicles. Maybe that reflects our natural fears and phobias, or maybe it is a result of our curiosity about the mysterious depths. Maybe it is simply that most of us will never get the...
Style over Substance
M4 Hex Socket Thumbscrew Knob Caps For the past few weeks I’ve been teaching myself how to use Fusion 360, a free online cloud-based...
over a year ago
74
over a year ago
For the past few weeks I’ve been teaching myself how to use Fusion 360, a free online cloud-based CAD/CAM program that lets you create your own 3D designs. The best way to learn how to use a new program is to build something you actually need. And my latest design is a work in...
Willem's Blog
Influencing purchase behaviour For my work I am continuously looking into scientific sources to improve e-commerce performance,...
over a year ago
2
over a year ago
For my work I am continuously looking into scientific sources to improve e-commerce performance, conversion rates and online revenue. Use this useful report to apply behavioural sciences principles to your advantage.
./techtipsy
ThinkPad as a server: the follow-up It’s been a while since I last wrote about my ThinkPad T430 that was tasked with being a home...
a year ago
53
a year ago
It’s been a while since I last wrote about my ThinkPad T430 that was tasked with being a home server. After doing some experiments with my setup a couple of times, it is once again the main server for all my self-hosting needs. However, this time I have made some...
Notes on software...
Walking through a basic Racket web service Racket is an impressive language and ecosystem. Compared to Python, Racket (an evolution of Scheme...
over a year ago
2
over a year ago
Racket is an impressive language and ecosystem. Compared to Python, Racket (an evolution of Scheme R5RS is three years younger. It is as concise and expressive as Python but with much more reasonable syntax and semantics. Racket is also faster in many cases due in part to: JIT...
computers are bad
2023-12-23 ITT Technical Institute Programming note/shameless plug: I am finally on Mastodon. The history of the telephone industry is...
a year ago
56
a year ago
Programming note/shameless plug: I am finally on Mastodon. The history of the telephone industry is a bit of an odd one. For the greatest part of the 20th century, telephony in the United States was largely a monopoly of AT&T and its many affiliates. This wasn't always the case,...
Arduino Blog
Discover #Virgil: history comes to life with Arduino We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino...
2 months ago
22
2 months ago
We’re excited to introduce #Virgil, an innovative project that combines the power of Arduino technology with a passion for history, creating a groundbreaking interactive experience for museums.  Using Arduino’s versatile and scalable ecosystem, #Virgil operates completely...
Louwrentius
Ubuntu and full disk encryption (FDE) Ubuntu is based on Debian Linux. As part of a regular Debian installation, you can choose to create...
over a year ago
2
over a year ago
Ubuntu is based on Debian Linux. As part of a regular Debian installation, you can choose to create an encrypted disk volume based on LUKS. This is different from the option within the Ubuntu installation to encrypt home directories. To be able to install Ubuntu and use full disk...
Neil Madden
Parse, don’t type-check There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to...
over a year ago
1
over a year ago
There’s a fantastic article from last year titled Parse, don’t validate. I’d highly recommend it to any programmer (along with the more recent follow up Names are not type safety). The basic idea is that there are two ways to check that some input to a function is valid: A...
Home on Erik...
coin2dice Here's a problem that I used to give to candidates. I stopped using it seriously a long time ago...
over a year ago
2
over a year ago
Here's a problem that I used to give to candidates. I stopped using it seriously a long time ago since I don't believe in puzzles, but I think it's kind of fun. Let's say you have a function that simulates a random coin flip.
On Life and Lisp
The Federation Fallacy Throughout the free software community, an unbridled aura of justified mistrust fills the air:...
over a year ago
6
over a year ago
Throughout the free software community, an unbridled aura of justified mistrust fills the air: mistrust of large corporations, mistrust of governments, and of course, mistrust of proprietary software. Each mistrust is connected by a critical thread: centralisation. Thus,...
Jonas Hietala
Autocomplete with nvim-cmp Autocomplete tags in the frontmatter. Autocompletion is an absurdly powerful feature that I—and I...
7 months ago
2
7 months ago
Autocomplete tags in the frontmatter. Autocompletion is an absurdly powerful feature that I—and I must assume most programmers—use all the time. It’s not as crucial for writing blog posts as when you’re coding but it’s still easy to come up with examples of how autocomplete...
Applied Cartography
Linear I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes...
5 days ago
10
5 days ago
I invited nickd to join our Linear instance yesterday, which reminded me that I had a slew of notes I wanted to publish on our own experience of migrating from GitHub Issues to Linear, and some reflections on it as a product now that we've been using it for a few months. One...
Willem's Blog
MUSE in Carré MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying...
over a year ago
2
over a year ago
MUSE's legendary rock fused with Amsterdam's Royal Theatre Carré for an unforgettable, electrifying experience - read about my experience!
Jonas Hietala
December Theme: New World Order The The Experimental Gameplay Project drives on with the Art Game theme which will last the rest of...
over a year ago
2
over a year ago
The The Experimental Gameplay Project drives on with the Art Game theme which will last the rest of this year but that’s something we can’t accept! I’ve done my game and I didn’t force myself out from the Haskell world just to do nuthin so here’s a new little theme for me :) What...
Arduino Blog
Easily add Python-controlled GPIO pins to any computer Let’s say that, hypothetically, you wanted to use your computer to blink an LED or read the state of...
6 months ago
53
6 months ago
Let’s say that, hypothetically, you wanted to use your computer to blink an LED or read the state of a button. Could you? Almost certainly not — at least not without additional hardware. Most modern computers don’t provide any interface for direct interaction with low-level...
Jonas Hietala
My first netrunner store championship My girlfriend has told me I get these narrow interests where I pour all my energy and thoughts into...
over a year ago
2
over a year ago
My girlfriend has told me I get these narrow interests where I pour all my energy and thoughts into and about 1,5 months ago I discovered Netrunner, a very awesome card game. Check out this how to play or team covenant’s channel if you want to know more. So this Sunday I went to...
Computer Ads from...
Ampere WS-1 A cool Japanese clamtop
9 months ago
./techtipsy
Control - how to make a game enjoyable for casual audiences I’ve decided to intentionally take more time to play video games this year, since it’s a relatively...
a year ago
104
a year ago
I’ve decided to intentionally take more time to play video games this year, since it’s a relatively healthy way to escape from the real world once in a while. A friend recommended one game in particular: Control: Ultimate Edition. During the Steam summer sale of 2023, I went...
seangoedecke.com RSS...
Why some engineers get trusted with high-impact work It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go...
16 hours ago
7
16 hours ago
It’s fun and rewarding to work on critical tasks. But there’s only so much important work to go around. Worse still, the chances to work on…
Home on Erik...
Waiting time, load factor, and queueing theory: why you need to cut your systems a bit of slack I've been reading up on operations research lately, including queueing theory. It started out as a...
over a year ago
2
over a year ago
I've been reading up on operations research lately, including queueing theory. It started out as a way to understand the very complex mortgage process (I work at a mortgage startup) but it's turned into my little hammer and now I see nails everywhere.
Odds and Ends of...
Odds and Ends #47: I think this YouTube video just changed my life Plus vertical farming, the Russia/EU border, and more on why the Lobby is bad.
a week ago
computers are bad
2024-09-26 the GE switched services network We currently find ourselves in something of a series, working our way from private lines to...
2 months ago
39
2 months ago
We currently find ourselves in something of a series, working our way from private lines to large private line systems like the four-wire private-line national warning system. Let's continue to build on the concept of the private line into large corporate systems. In principle, a...
Electronics etc…
HP 33120A Repair - Shutting Down the Eye of Sauron Introduction Opening Up an HP 33120A A Walk Through the Block Diagram Bug Hunting Zener...
a year ago
62
a year ago
Introduction Opening Up an HP 33120A A Walk Through the Block Diagram Bug Hunting Zener Replacement Staring at the Eye of Sauron FLIR IR Imaging To Destroy a PCB in Order to Save It Circuit Reconstruction Success! Trust but Verify Conclusion References Introduction When the...
Louwrentius
'Linux: show graphical layout of disk temperatures' graphic, representation To get a visual representation of hard drive temperatures, I wrote a...
over a year ago
2
over a year ago
graphic, representation To get a visual representation of hard drive temperatures, I wrote a small script. The output of this script looks like this: This output is tailored to the exact disk lay-out of my storage server. However, it is also usable for other servers. You have to...
Good Enough
Issue 0: Collector's Item 1. Oh, hello. We didn’t see you there. How are you doing? You’ve somehow ended up with a collector’s...
over a year ago
3
over a year ago
1. Oh, hello. We didn’t see you there. How are you doing? You’ve somehow ended up with a collector’s item in your hands: the very first Good Enough Newsletter. This is the beginning of what we (Barry Hess & Shawn Liu) hope to be a years-long series of communiqués with our rabid...
Louwrentius
Why VMware vSphere replication is changing the game If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller...
over a year ago
2
over a year ago
If you are running a serious VMware environment, chances are you do have a SAN. Often with smaller setups, many people do employ multiple VMware hosts, but the SAN is a single point of failure. SANs are often fully redundant devices, with redundant PSUs, storage controllers,...
Posts on Made of...
CVE-2010-4258: Turning denial-of-service into privilege escalation Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different...
over a year ago
2
over a year ago
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different kernel vulnerabilities I reported recently. This post is about CVE-2010-4258, the most interesting of them, and, as Dan writes, the reason he wrote the exploit in the first place. In...
Old Vintage...
The unreleased Commodore HHC-4's secret identity Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one...
a month ago
34
a month ago
Once upon a time (and that time was Winter CES 1983), Commodore announced what was to be their one and only handheld computer, the Commodore HHC-4. It was never released and never seen again, at least not in that form. But it turns out that not only did the HHC-4 actually exist,...
Home on Erik...
Deep learning for... chess I've been meaning to learn Theano for a while and I've also wanted to build a chess AI at some...
over a year ago
2
over a year ago
I've been meaning to learn Theano for a while and I've also wanted to build a chess AI at some point. So why not combine the two? That's what I thought, and I ended up spending way too much time on it.
Home on Erik...
The eigenvector of "Why we moved from language X to language Y" I was reading yet another blog post titled “Why our team moved from <language X> to <language Y>” (I...
over a year ago
2
over a year ago
I was reading yet another blog post titled “Why our team moved from <language X> to <language Y>” (I forgot which one) and I started wondering if you can generalize it a bit. Is it possible to generate a N * N contingency table of moving from language X to language Y?
Arduino Blog
This Flip-Pelt wearable concept enables ultra-fast thermal feedback in VR Wouldn’t it be great if, while playing a virtual reality game, you could feel the heat of a fire on...
a month ago
14
a month ago
Wouldn’t it be great if, while playing a virtual reality game, you could feel the heat of a fire on your arm? Or the cold of chilly water? Engineers around the world have been trying to make that happen, but there is a big problem: temperature changes are slow. The immersive...
Good Enough
TIL: Victory Symbol We noticed that the victory symbol at the bottom of our homepage looked different in Chrome than...
a year ago
2
a year ago
We noticed that the victory symbol at the bottom of our homepage looked different in Chrome than Safari––it was playing smart and rendered the unicode character as an emoji. Lettini found a fix though! Append this string of code to the symbol: &#xFE0E;. So &#9996;&#xFE0E; renders...