It has been around 14 months since the pandemic started. We have all been affected by it to a greater or lesser degree, and the investing world has not been an exception (although surprisingly, the stock market is one of the winners of the pandemic).

In this post I will…


I have always been fascinated by the above comic strip. A discussion on randomness and determinism becomes as much a philosophical issue as it is a practical one. They are used in a variety of applications: from the obvious cryptography, gaming or gambling to the less evident politics or arts.


If you are an Android developer, chances are you might have been working on your own Android libraries. A library is a useful way to create a reusable set of features that need to be integrated through different apps (or even different libraries).

A library is a self-contained package including…


If you are developing Android apps, chances are you have confronted any sort of CI at some point in your career. If you thought Android fragmentation was a thing, the wide availability of CI systems will be familiar to you.

GitHub Actions was released around November 2019, and since then…


When there is an exchange of information happening, we often want to verify that the origin of the data is the right one. This can be used to ensure that the right clients are having access to our resources.

For instance, let’s imagine that we want to ensure that an…


I just sent the issue #182 of the Kotlin Weekly. #182 means that this has been the week 182 that the Kotlin Weekly is alive. Many things have changed since the first edition on the 7th of August 2017, sent to over 200 initial subscribers with 5 articles.

In some…


This year is over. During the last 365 days, I fulfilled some of the goals I meticulously established at the beginning of the year. In other goals, I failed without palliatives or anesthesia.

During the last 9 years, I have been following a process to determine my goals for the…

Enrique López-Mañas

I learn, and then I do things with what I have learnt

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