And I hope everyone saw the announcement at Flutter Live! about Hummingbird. If not, read this — https://medium.com/flutter-io/hummingbird-building-flutter-for-the-web-e687c2a023a8
Hummingbird is a new project to allow Flutter apps to target (run on) web browsers. The idea is that you can create a single codebase, and it will run not just on Android and iOS, but also on web browsers. There are also projects to get Flutter apps to run on desktops (Linux, MacOS, Windows) and on smaller devices, like Raspberry Pi.