I’ve made available the sample program from my talk at the University of Málaga on performance optimizations for apps. You can follow the example commit by commit and go from a most naive implementation of a scrollable list of posters to a smooth experience.


Handy units converter directly in spotlight on the mac 📏

New video support in GitHub… no more converting screen video captures to animated gif for comments 🥳

This has to mean something… last day of 2020 and 666 ratings for

Running out of space in my 32 GB iPad, which basically breaks many apps off-line mode since it “intelligently” offloads iCloud content, and wondering why… then digging into the storage settings and noticing 10GB+ of system files in 😳

How much funding did you take? $0

What's your marketing budget then? $0

You must have a great sales strategy? We don't do sales

You must use tons of sneaky website elements to trick people? None

You can grow without being annoying and without supporting the adtech.


Trying iPad apps for Apple Silicon in the M1 and the App Store doesn’t recognise a paid app and wants to charge again under the “iPhone and iPad apps” tab 🤔 Going to the purchases shows the app with the cloud download icon though and works as expected 👍

The era of AI-generated click-bait is here:

"Porr says he wanted to prove that GPT-3 could be passed off as a human writer. Indeed, despite the algorithm’s somewhat weird writing pattern and occasional errors, only three or four of the dozens of people who commented on his top post on Hacker News raised suspicions that it might have been generated by an algorithm. All those comments were immediately downvoted by other community members."

Going over the agreement, revising my legal address and being blocked for invalid entry. I check and everything’s fine. Go into the forums and find the answer “just click 3 times to solve the problem”… and it surely works! 😳

TIL you can designate the heir of your GitHub account 😐

Getting feedback from a designer friend on and they totally love it! Totally sold on it. In contrast, I have seen so much whining from the developer community. Each one, with their own biases and priorities, seeing the same thing totally different. Live to learn!

The video from our session with Kai Dombrowski and Malin Sundberg on being using is now available!

They break down all sort of juicy details about the development of their app Orbit, available for and . Check it out!


Our next session will be on development for and in with Malin Sundberg and Kai Dombrowski. It’s going to be packed with great insights from the development of their app Orbit Can’t wait! 🤩

¡Qué cuco el attack! Le ha faltado poner "abra en un sistema (Windows, porque es donde está la vulnerabilidad que explotamos, gracias)"

Announcing our next session, this time on app development for and using . Malin and Kai will tell us about the development of Orbit 🚀, which is currently being featured in App Stores worldwide 🤩

The slides from Bernat Borrás’ great talk on managing color themes in are now available. Check out links to slides and videos of our past sessions in our resources page:


¿Sabes armonizar los colores en modo claro y modo oscuro en tu app ? Averigua cómo con Bernat Borras en nuestra próxima sesión de

Anunciando nuestra próxima sesión de , de nuevo online y abierta a todos, esta vez sobre cómo manejar la UI en como un pro en claro 🌞y en oscuro 🌚 de la mano de Bernat Borrás


The top-10 of most loved languages in the StackOverflow developer survey: 2019 vs. 2020.

going from 6th to 9th 😕

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