Previously I've done Web front end with CSS and Javascript and Web backend with AWS, GCP, Firebase, PHP, Java, Nodejs, even shell and CGI. I've also done mobile dev with native Blackberry (in Java), Android (again Java) and native iOS with Swift. I've also done hybrid mobile dev with Cordova, a bit of Appcelerator and a touch of React Naive.

Then I caught the Flutter bug and so far have used it to make two small games, each of which is now released on the Apple App Store and the Google Play Store.