A modern programming language that makes developers happier.

kotlinlang

I have an example of it. I am working on an app that is designed to work with some video recording hardware but it doesn’t require it to function. There is a chain of network calls to make to get the data needed to connect to the hardware that could fail at various points. I can cleanly model the whole operation as `Observable&lt;Optional&lt;DvrService&gt;&gt;` this allows me to keep retrying to connect to the device if the empty optional was caused by network flake rather than non existent hardware registrations.