If you like puzzle games and fun brain quizzes check out my brain-teaser repository, you can add new puzzles if you have something in mind, just open a pull request (they are more than welcome ).

I have an app in google play that I and Shimshon Polak made together as a fun side project.

I would like to hear your opinion about the app - questtionp@gmail.com

Here are answers that I think that can help you understand ConstaintLayout better:

First answer, second answer, third answer.