Hey 😄  I've created a small test for a product and would appreciate any feedback on it! Long story short: If you subscribe, each day, for the next 3 days, you will get a small, but interesting RxJava2 Puzzler (written in Kotlin) with a detailed explanation. You will either learn something new, or confirm your knowledge. https://mailchi.mp/631bd69d4410/smallengineer-rxjava2puzzlers-free After three days, there is a small survey just so I can gather feedback. Thanks, and tell me what you think!