I'll play with Flutter today and see how easy/hard it would be to add web.
I know the formatting will be brutal once you switch to a desktop browser because the whole idiom for interaction changes. Maybe it won't suck too bad though...
Having ported a Flutter mobile app to web before, it was simple.
One feedback: The spacing between rows of content gets too big on my vertical pc screen. It seems to me you are trying to make one row take the whole height of the screen.
Feel free to contact me, I would love to contribute. My email is in my profile :)
Even on mobile, I'm not going to install an app unless I know it works well. Maybe it's possible to generate a webapp? Often, websites will offer a webapp with a funnel to try to get people to sign up for the actual app itself.
I know the formatting will be brutal once you switch to a desktop browser because the whole idiom for interaction changes. Maybe it won't suck too bad though...