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I always see the same sites used and quotes for free stuff (unsplash, pexels, freepics, etc.) and that’s cool because these are awesome resources anyways, but today I just wanted to feature 3 places I recently discovered and I haven’t seen quoted or talked about in many places. Resource Cards Growing list of free resources aimed to help creatives with their projects. By Stelianand Sergiu Firez  Web: https://resourcecards.com/.

Getting server-side rendering to work in React is quite a hassle if you don't know what you're doing. Let's make it easier.

We go through uses of the Python reduce function, when it's useful and its performance benefits. This time, we spend some time exploring function composition, and how to manage large function chains, e.g. in a data processing pipeline.

Code and Data - johnj.com - 8 years ago - eng
Introduction This article was adapted from discussions we had at the weekly Clojure study group at OpinionLab, in June, 2018. Clojure is a Lisp. Code is data in Lisp, and data can also be code. Lisp code consists of lists of symbols (or atoms, as they are called in other Lisps), other data primitives such as numbers and keywords, or (nested) lists of the same. 1 The first item in an expression (list) is the name of an opera....

Code and Data - johnj.com - 8 years ago - eng
Introduction This article was adapted from discussions we had at the weekly Clojure study group at OpinionLab, in June, 2018. Clojure is a Lisp. Code is data in Lisp, and data can also be code. Lisp code consists of lists of symbols (or atoms, as they are called in other Lisps), other data primitives such as numbers and keywords, or (nested) lists of the same. 1 The first item in an expression (list) is the name of an opera....

Code and Data - johnj.com - 8 years ago - eng
Introduction This article was adapted from discussions we had at the weekly Clojure study group at OpinionLab, in June, 2018. Clojure is a Lisp. Code is data in Lisp, and data can also be code. Lisp code consists of lists of symbols (or atoms, as they are called in other Lisps), other data primitives such as numbers and keywords, or (nested) lists of the same. 1 The first item in an expression (list) is the name of an opera....

For the month of May, I only read one book, which seems to be the trend for the year. While I did read three books in January , I only managed to read one book in March and one book in April .

Ok, let’s chill for a sec. If you don’t know about Jo Luijten, he is a Dutch video artist & video game developer based in LA, and beside his impressive portfolio, he also feed a youtube channel name Squirrel Monkeywith some funny retro videos. I stumbled upon his creations the other day and had to share some here. Check his channel if you want more vids (got on Siri, Tinder, Insta, Bitcoin and more).

Ok, let’s chill for a sec. If you don’t know about Jo Luijten, he is a Dutch video artist & video game developer based in LA, and beside his impressive portfolio, he also feed a youtube channel name Squirrel Monkeywith some funny retro videos. I stumbled upon his creations the other day and had to share some here. Check his channel if you want more vids (got on Siri, Tinder, Insta, Bitcoin and more).

Here we are, item numero dos in our three-part mini-series about my recent (and highly suspect) purchases. Without further ado, here we go. For some reason I’m not sure I understand yet, I bought a car. As Fate Would Have It I didn’t just wake up one day (after living here for three years) and decide I wanted a car. No, I bought it on a whim when the opportunity presented itself. A co-worker was selling their car, and it j..

Here we are, item numero dos in our three-part mini-series about my recent (and highly suspect) purchases. Without further ado, here we go. For some reason I’m not sure I understand yet, I bought a car. As Fate Would Have It I didn’t just wake up one day (after living here for three years) and decide I wanted a car. No, I bought it on a whim when the opportunity presented itself. A co-worker was selling their car, and it j..

I’m generally not against spending money. I am however generally against buying things . This is a point I’ve surely beaten well beyond death by now, so I won’t belabor it much further. It’s just to say that I want to be really sure something makes sense within the larger context of my life before I buy it and have to deal with it forever. I only mention this because I’ve been on a bit of a purchasing spree (by my standards) as of late..

I’m generally not against spending money. I am however generally against buying things . This is a point I’ve surely beaten well beyond death by now, so I won’t belabor it much further. It’s just to say that I want to be really sure something makes sense within the larger context of my life before I buy it and have to deal with it forever. I only mention this because I’ve been on a bit of a purchasing spree (by my standards) as of late..



I like to keep my GitHub clean. I delete forks I’m not using anymore, move old abandoned repositories to my graveyard and etc.



Neverneverland, Frans de Wollantstraat 70, Amsterdam duo show with Delano Paul Mac Andrew (NL) titled under control Thanks to Judith Leysner for the invitation.

In this post I describe an alternative approach to sharing source code elements between multiple build targets. It's based on a custom build process I implemented at PathEngine for our C and C++ code-base (but the core ideas could also be relevant to other languages with compilation to object files). We'll need to enforce some constraints on the way the source code is set up, notably with regards to header file organisation, but can the....

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Expect more items to be added in the future. Introduction tl;dr My dream programming language should be easy like a scripting language and fast and raw like low-level languages. It should be no secret, among people who know me even a little bit, that I like to work on programming languages. Why? I don’t know. I just do. But I have been feeling uncomfortable as of late because it seems like all of the good ideas are already t..

Ok…. title of this post is a tad specific but I have wasted so much time trying to piece all together all the elements of this short post that I thought it will be probably useful for a few other people out there.  so what are we talking about anyway. On one side of the ring we have Nextcloud– the evolution of owncloud, forked by its own founder to ensure this project remain opensource forever (full story here).

Ok…. title of this post is a tad specific but I have wasted so much time trying to piece all together all the elements of this short post that I thought it will be probably useful for a few other people out there.  so what are we talking about anyway. On one side of the ring we have Nextcloud– the evolution of owncloud, forked by its own founder to ensure this project remain opensource forever (full story here).



The new MapTiler Platform offers base maps of the entire world, geodata processing, and a mobile application that covers the entire map-creation flow.

Replacing the cabin air filter is one of the most neglected yet easy-to-do maintenance items that car owners should do. It’s probably neglected because cars used to not have cabin air filters, and auto repair shops want to charge an arm-and-a-leg to replace them. The cabin air filter itself is fairly cheap.

I’ve been using Elixir’s Phoenix framework for a few years but most of my projects were on the older MVC style. Phoenix 1.3 introduced the concept of contexts (commonly known as bounded contexts). This changed the way you architect your applications.

We go through uses of the Python map function, when it's useful and its performance benefits, and get sidetracked into benchmarking different syntaxes for exponential expressions.

The original JMS spec first arrived in 2001 with JSR 914. At the time several enterprise messaging systems were already widely available however each had their own unique features and mechanisms which required software that wanted to talk on a given messaging bus to be tightly-coupled to the specific messaging system implementation in use. Given that "tightly-coupled" is something you want to avoid in your enterprise systems, there was a ..

A Recursive Feast In 1983, Douglas R. Hofstadter, author of "Gödel, Escher, Bach: An Eternal Golden Braid" wrote a series of articles on Lisp in Scientific American (later republished in the book Metamagical Themas , which is where I encountered them for the first time). While much of the writing focused on the nature of recursion in programming, the third and last article in the series provided an entertaining example of blurring th....

A Recursive Feast In 1983, Douglas R. Hofstadter, author of "Gödel, Escher, Bach: An Eternal Golden Braid" wrote a series of articles on Lisp in Scientific American (later republished in the book Metamagical Themas , which is where I encountered them for the first time). While much of the writing focused on the nature of recursion in programming, the third and last article in the series provided an entertaining example of blurring th....

A Recursive Feast In 1983, Douglas R. Hofstadter, author of "Gödel, Escher, Bach: An Eternal Golden Braid" wrote a series of articles on Lisp in Scientific American (later republished in the book Metamagical Themas , which is where I encountered them for the first time). While much of the writing focused on the nature of recursion in programming, the third and last article in the series provided an entertaining example of blurring th....

Many of our users have asked for it for quite a long time. Now, we finally took the time to setup a donation option. Since we started Hypriot in 2015, we received great attention from a growing community around Docker on ARMed devices. We received numerous “kudos” and nice words. Even though we greatly appreciate this until today, words do not enable us to pay our infrastructure bills. Now you have the option to support us materialistica....

På grunn av sykdom ble intervjuet med mellom meg og Robert Steen 1. juni flyttet. Du kan istedet se oss live førstkommende fredag 22. juni. Jeg ble først oppmerksom på finansbyråd Robert Steen når vi ba ham om å holde åpningsinnlegg på Dataforeningens Software 2018. Som han selv sa på scenen: Å invitere en kommunepolitiker til å åpne en IT-konferanse kan virke litt rart. Men Robert Steen er en politiker som setter digital transformasjon på ..

This paper is a discussion around the issues faced by distributed systems when dealing with time, ordering and failures. This is particularly relevant with the work I am doing at the moment designing a very large distributed system that will need to scale massively.

This paper is a discussion around the issues faced by distributed systems when dealing with time, ordering and failures. This is particularly relevant with the work I am doing at the moment designing a very large distributed system that will need to scale massively.


Painting and Time - johnj.com - 8 years ago - eng
Painting is quite old and hard to fool. –Tad Spurgeon In Living Craft , Spurgeon calls out time as the first "material" used to make paintings. He speaks of "extra-logical," emotional time, time experienced by the mind of the painter, rather than purely physical time measured by clocks. His remarks frame an invitation to contemplate how one experiences time in the studio and what time means to painters (and, by extension, viewers)....

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