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If you’re like me and constantly tint everything around you a slight shade of indigo from your raw denim jeans, then your white Apple Watch Sport Band is starting to look a little shabby after 2 years of everyday use. Luckily, it only takes about 5-10 minutes of effort to restore your band to its original color. Things You’ll Need Mr. Clean Magic Eraser - we’ll be using this to remove the dye stains. Because I also have 2 years worth of....
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If you’re like me and constantly tint everything around you a slight shade of indigo from your raw denim jeans, then your white Apple Watch Sport Band is starting to look a little shabby after 2 years of everyday use. Luckily, it only takes about 5-10 minutes of effort to restore your band to its original color. Things You’ll Need Mr. Clean Magic Eraser - we’ll be using this to remove the dye stains. Because I also have 2 years worth of....
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Identifying and quantifying dead ends, the bane of all adventure game players: Adventure Games and Eigenvalues
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3Blue1Brown . Calculus Made Easy (1914) (Hacker News) . Visually stunning math concepts which are easy to explain .
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Had problems installing and using GnuPG on macOS, primarily for Emacs use: gpg: problem with the agent: Inappropriate ioctl for device gpg: error creating passphrase: Operation cancelled gpg: symmetric encryption of '[stdin]' failed: Operation cancelled Basic installation required: brew install gnupg But worked around the error above by using pinentry-mac (UI), instead of Emacs prompts. brew install pinentry-mac Edited ~/.gnupg/gpg..
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Trailblazing the first delivery of a software system requires courage and conviction, especially on projects that replace existing business critical software. When I’ve been acting as system architect I’ve employed a number of tricks in order to structure functionality and technical solutions in such a way that we can complete these early deliveries without sleepless nights. The most important is to find a subset of functionality that c..
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Once upon a time there was an ugly truck. He was a lonely soul, a poor mess of rust and twisted metal, left to idle all alone. While certainly a sad state of affairs, it hadn’t always been this way for him. In his youth as a rental truck, he’d helped families move every which way. Later, he became a work truck, the lifeblood of an independent carpenter. As fulfilling as his past had been, it had also left its fair share of chips and dent..
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Once upon a time there was an ugly truck. He was a lonely soul, a poor mess of rust and twisted metal, left to idle all alone. While certainly a sad state of affairs, it hadn’t always been this way for him. In his youth as a rental truck, he’d helped families move every which way. Later, he became a work truck, the lifeblood of an independent carpenter. As fulfilling as his past had been, it had also left its fair share of chips and dent..
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At DockerCon 2017 in Austin I gave a presentation of a Raspberry Pi cluster mixed with some UP boards. The audience really liked the visual effects of the Docker Swarm scaling a service up and down. So I show you some background details what you need to run that demo on your Raspberry Pi cluster as well. All the effort played off to build that cluster, to find out how to drive LED’s in swarm mode, to put it into my bag and go throug....
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Just over a year ago, my son Wyatt received his first computer for his sixth birthday. It’s a Raspberry Pi, and he has an old LCD monitor, and a kid-friendly mouse and keyboard. I purposely waited until he could read before starting to teach him about computers. He’s a pretty smart kid, reads a lot (a Harry Potter book in a weekend), and is somewhat socially awkward. Perfect for a programmer. The Raspberry Pi doesn’t have a cover on i....
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Just over a year ago, my son Wyatt received his first computer for his sixth birthday. It’s a Raspberry Pi, and he has an old LCD monitor, and a kid-friendly mouse and keyboard. I purposely waited until he could read before starting to teach him about computers. He’s a pretty smart kid, reads a lot (a Harry Potter book in a weekend), and is somewhat socially awkward. Perfect for a programmer. The Raspberry Pi doesn’t have a cover on i....
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Design is about solving problem Art is about creating perspective Both place the human dimension at the center of their craft It is never about the tool or the medium per se It is always about the experience Imagination is the trigger Pulling the trigger take you out of this world Use text – images – sound – video – animation – sculpture – theatre – anything. Take the weapon of your choice.
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This is not the performance you were looking for: the tricks systems play on us
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blog.janestreet.com
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9 years ago
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eng
It’s often surprising just how much software performance depends on how the software is deployed. All the time and effort you’ve invested in optimization can be erased by a few bad decisions in scheduler policy, affinity, or background workload on a server.
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This is not the performance you were looking for: the tricks systems play on us
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blog.janestreet.com
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9 years ago
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eng
It’s often surprising just how much software performance depends on how the software is deployed. All the time and effort you’ve invested in optimization can be erased by a few bad decisions in scheduler policy, affinity, or background workload on a server.
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As mentioned in my Working on Android post , I’ve been using a mechanical keyboard for a couple of years now. Now that I work on Flowhub from home, it was a good time to re-evaluate the whole work setup. As far as regular keyboards go, the MiniLa was nice, but I wanted something more compact and ergonomic. The Atreus keyboard Atreus is a 40% ergonomic mechanical keyboard designed by Phil Hagelberg . It is an open hardware design....
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As mentioned in my Working on Android post , I’ve been using a mechanical keyboard for a couple of years now. Now that I work on Flowhub from home, it was a good time to re-evaluate the whole work setup. As far as regular keyboards go, the MiniLa was nice, but I wanted something more compact and ergonomic. The Atreus keyboard Atreus is a 40% ergonomic mechanical keyboard designed by Phil Hagelberg . It is an open hardware design....
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As mentioned in my Working on Android post , I’ve been using a mechanical keyboard for a couple of years now. Now that I work on Flowhub from home, it was a good time to re-evaluate the whole work setup. As far as regular keyboards go, the MiniLa was nice, but I wanted something more compact and ergonomic. The Atreus keyboard Atreus is a 40% ergonomic mechanical keyboard designed by Phil Hagelberg . It is an open hardware design....
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Design is about solving problem Art is about creating perspective Both place the human dimension at the center of their craft It is never about the tool or the medium per se It is always about the experience Imagination is the trigger Pulling the trigger take you out of this world Use text – images – sound – video – animation – sculpture – theatre – anything. Take the weapon of your choice.
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By its very nature, Serverless (FaaS) addresses some of today’s biggest security concerns but it doesn’t fix it all. This post outlines the top areas where Serverless helps or hinders our security efforts, offering advice on how to address concerns and thoughts on what’s to come next.
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UPDATE: I’m leaving this series up for historical purposes, but please note that I no longer recommend Ubuntu Core or snaps for use in robotics. This is the third blog post in this series about ROS production. In the previous post we came up with a simple ROS prototype. In this post we’ll package that prototype as a snap. For justifications behind why we’re doing this, please see the first post in the series.
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I've been trying to get a manageable system for dealing with projects that need a lot of settings, some of which are secrets such as credentials. In general, environment variables are the most widely-supported mechanism. They have many shortcomings: they are exposed by the OS to other processes running as your user or root via the /proc filesystem (at least on linux), don't have data types other than strings, can't express nesting or arrays....
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I am a big believer that technology is neither bad nor good. Technology is just a tool than enable our capacity to be more of what we are already. We can use technology to solve problems. Potentially, we can create a better society. But it is not up to technology but how we use it. Recently – Virtual Reality (VR) Augmented Reality (AR) are more and more trendy. Everyone is super excited about where all this is going.
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I am a big believer that technology is neither bad nor good. Technology is just a tool than enable our capacity to be more of what we are already. We can use technology to solve problems. Potentially, we can create a better society. But it is not up to technology but how we use it. Recently – Virtual Reality (VR) Augmented Reality (AR) are more and more trendy. Everyone is super excited about where all this is going.
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Make shit happen Get out and shout your truth to the world You might be wrong but you will never know until you get it out Breaking news: the world will go on with or without you – so better you become an active part of it. #Just do it Just move on and create. Make new things happen. Try out. Produce. Experiment. Throw things out to the world and see what sticks.
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Ever wonder if you can build your own phone? Well this guy did. Last time I checked how to make a phone myself, the only thing I could find always seemed very hard and not very practical (just have a look at this DIY Smartphonebased on a rasperry-pi) But the Strange Parts’s project is really impressive and give plenty of hopes for a different future of DIY-phones. While I am probably not going to that myself, it is still rather instructive..
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Ok, if you have never heard of Shenzhen, China you might want to get yourself up to date with this quick article – because really, it is getting more and more attention lately, as it has turned into a major platform of electronic hardware manufacturing of the past 15 years. Located north of Hong Kong, Shenzen is the center of the supply chain hub for electronics. All of the major contract manufacturers working for Apple, HP, Microsoft and ..
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The Pragmatic Programmer is one of the most influential books that I have read as a software developer. It is right up there with Software Craftsmanship and Clean Code. Andy Hunt recently gave an interview that was peppered with several poignent quotes that struck a chord with me. You need to understand how to work with other people, both with teammates and with those pesky users This is the single piece of advice that I’d give ..
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Make shit happen Get out and shout your truth to the world You might be wrong but you will never know until you get it out Breaking news: the world will go on with or without you – so better you become an active part of it. #Just do it Just move on and create. Make new things happen. Try out. Produce. Experiment. Throw things out to the world and see what sticks.
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Ever wonder if you can build your own phone? Well this guy did. Last time I checked how to make a phone myself, the only thing I could find always seemed very hard and not very practical (just have a look at this DIY Smartphonebased on a rasperry-pi) But the Strange Parts’s project is really impressive and give plenty of hopes for a different future of DIY-phones. While I am probably not going to that myself, it is still rather instructive..
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Ok, if you have never heard of Shenzhen, China you might want to get yourself up to date with this quick article – because really, it is getting more and more attention lately, as it has turned into a major platform of electronic hardware manufacturing of the past 15 years. Located north of Hong Kong, Shenzen is the center of the supply chain hub for electronics. All of the major contract manufacturers working for Apple, HP, Microsoft and ..
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As you may know, April is national poetry month, an annual series of events by the Academy of American Poets to help support the appreciation of American poetry. If you’re looking for great book-length collections of poems, you might be interested in the Iowa Poetry Prize winners. Many of the previous years’ winners are made […]
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General thread for ML related topics. Let's talk about our current projects, learning aids, questions, curiosities and forth. Also Forth. I'll start by posting what are generally regarded as the foundational books for the discipline.
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This is the thread for those of us who enjoy the machine codes, the assembler languages, and the rest of the lower levels our machines have. If you have any routines, techniques, tools, or anything else related to this wide topic, do post it in here. On that note, let this also be a thread for discussion of machine preferences. To encourage discussion, here are some questions: Do you think binary machines are the best or trinary or ..
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It’s been over a year since I wrote a blog entry ! And while of course the universal excuse of “I’ve been busy” applies, I think we reached a point in Discourse ’s development where we just were able to focus on the product without a lot of stuff getting in our way. I’ve now been working on Discourse full time for 5 years. In the beginning we had a lot more uncertainty about technical decisions. Some of the things we debated interally i..
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Microservices — an architectural pattern we recommended in our 2012 International PHP Conference keynote — is pretty popular these days. There are many benefits to consider: Independent development and release lifecycle for each microservice Ensuring clear API boundaries between systems Ability to use technologies most applicable for each area of a system In an ideal world, microservices are a realization of the Unix philosophy as ....
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Last few months I’ve been using Go to write quite a lot of tools. In this post I intend to show not why I chose Go over others, but how I architect those tools, what libraries I use and what kind of automation I have in place.
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Microservices — an architectural pattern we recommended in our 2012 International PHP Conference keynote — is pretty popular these days. There are many benefits to consider: Independent development and release lifecycle for each microservice Ensuring clear API boundaries between systems Ability to use technologies most applicable for each area of a system In an ideal world, microservices are a realization of the Unix philosophy as ....
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