A modern programming language that makes developers happier.

kotlinlang

So I am creating an App in Kotlin.
I would love your feedback first on how I can improve this, if I am doing something badly (that could haunt me in the future) and whatever might come to your mind. I will be working on this more adding some extra features to learn more.
<https://github.com/SovcikJoe/Android_Kotlin_Todo/tree/master>
I am pretty much a beginner so ANY feedback is very welcome :slightly_smiling_face:. 

Either in a channel or PM.