«Herd immunity» was never part of Sweden’s approach though, just tune in to any AMA session with Tegnell. They have had much of the same response as other countries, although a more lax version with recommendations instead of strict rules and lockdowns.
Add ubiquitous & fast testing into the mix - is contact tracing valuable then? Because testing on demand is what a lot of governments are looking at.
I’m thinking the app giving me a notice of close contact with a confirmed covid case will also increase my chances of getting a test even before we reach that scenario.
Flutter isn't yet at a 1.0 release. It looks very cool and I'm excited about it personally, but compared to React and Swift it has less stability and far less tooling support and developer knowledge. There's also reason to believe that it could be abandoned by Google down the line: it's being developed by the Dart team, but it's inherently at odds with the Android team because it circumvents their API almost entirely.
I'd do a personal project in it, but I wouldn't start a business on it right now.
Re; abandoned - yeah one never knows but Dart is a pretty integral part of Google these days with Adwords being built on it. Also I think that Google knows it will lose some developers to multi-platform solutions like this, so they might as well lose them to their own alternative (than say, react native).
As for tooling support - what's missing? It has had hot reload since the start and there's the Flutter plugin for IntelliJ IDEA (can be used with the free Community Edition btw) which includes everything you expect from IDEA in addition to things like Flutter Inspector etc. https://flutter.io/inspector/
