Founder and trainer at AKOSMA Training https://akosma.training • Born in 🇦🇷 • Living in 🇨🇭 • Writes in English, French and Spanish Being A Developer After 40This is the talk I have given at App Builders Switzerland on April 25th, 2016.The slides are available on SpeakerDeck and at the bottom of this article. The video of the session is available in YouTube. This article has been printed in the