Show HN: Flutter and My First App

I released my first iOS/Android app about 3 months ago after about 7 months of Flutter development. Flutter was fairly easy to get up to speed once once I was familiar with all of the most common widgets. The "Everything is a Widget" mantra certainly holds true. The app is called Tellüs. Seems to me that Flutter is going to become the main-stream mobile development tool - do people agree?