+1 to what was said above; the UI didn't take 3.5 years to make - we launched it fairly quickly and then continued to improve on it. Later there was large UX refresh, so maybe that's where OP is getting confused? Either way, that software continued to work for years after the team was moved on to other projects. SageTV was good, but the UI wasn't java - it was a custom xml-like layout.

This was the first response when I shared this with someone else.

"libraries that you write for mobile"

If you're writing java/kotlin, yes. If you're writing UI libraries, its portable.

Learning Dart is a ~1 week amount of time.

Yeah, that’s why companies usually demand 3-5 weeks of programming language experience when hiring.

I've used flutter for several years. Years before that I wrote in Dart for web and native work. I've loved flutters ability to reach multiple platforms with the same codebase and still look great. My small-ish team has been responsible for several clients across multiple platforms and using flutter is letting us focus more on what we want to build, not where.

Not my writing; https://stadia.dev/blog/how-flutter-helped-us-make-stadia-co...

Bias disclosure: I worked on the original dartc compiler, am a sr. Googler, and have given talks about flutter. These are my opinions and I'm a happy evangelist for the framework.

Web: you have html and canvas kit rendering. It's fast and can auto select which renderer to use - or you can force it.

Just out of curiosity; do you see these while running in profile / release mode?