A Modern iOS App Icon and Image Workflow With Blade

There are a few steps in a typical Designer-Programmer exchange. This starts when either you (the developer) - are part of the team and the designer had finished design work, or when you (the developer) hire a designer or make contract work, and now you need to integrate the deliverables into your app.

3 Years of Go in Production

For the last 3 years, my microservices in production were divided into the following platforms:

  • Core: Ruby and JRuby with Rails and Sinatra
  • Satellites, scale: Node.js, Clojure and later: Go

Low Level Go

Let’s take a look at a golang binary size with real life dependencies.

These are two of my own projects, where I knew they had to run on a command line, and across platforms:

Parsing Binary Data With Node.js

I’ll start by highlighting some of the pillars of binary data, hopefully in a breeze. If you find yourself very attracted to these topics, I recommend this book (you can skip the HLA/assembly parts). Also note that it’s a bit oldschool (I read that more than 10 years ago but it left quite an impression) so there may be newer and better resources to learn from.


A “computer” word, is a sort of unit of grouping of bits. For example, a word can be 8, 16, 32, 64 etc, bits wide. Typically a word’s width is coupled to the CPU’s architecture’s width (i.e. 64bit CPU) but in our case, we’ll treat the meaning of word as “a set of N fixed-size bits” where N is the number of bits.


The term “endian” comes from “end”. When you look at a sequence of bytes and want to convert a group of bytes to a plain old number, it stands to denote which end of the number is first; in the case of big endian the first part is the bigger one. In the case of little endian the first part is the little one.

For example, there are two ways to look at the couple of bytes appearing in a binary file: 01 23.

Asset Pipeline Internals

Almost a year ago, I wrote about build management for Javascript projects.

In a hindsight a year proved to be a ton of time on the client-side.

Most notably Grunt (which I only mentioned briefly) took off like a rocket, and in the same manner Yeoman - which I almost instantly considered a swiss army knife for doing my client-side only projects.

Yeoman though, which relies on Grunt, is going through some fundamental changes and looks like it is being re-arranged and re-planned for a while now.

For what it’s worth I do support the new Yeoman changes, but instead of waiting for it to crystalize I tought it is time to re-evaluate what’s out there today and see if Yeoman can be replaced altogather (the answer is ‘Yes’, keep reading :).