This is awesome! To offer some constructive feedback: the wind direction could be clearer. More particles flowing across the waters! Especially when the direction is changing. Looking up at the wind teller is unintuitive, even for this old sailor who understands where it comes from. I also didn't always feel like it mattered which direction I angled my sails, only how much I angled them. Like I could angle them for a port wind when in reality I had a starboard wind, and I'd sail just fine.

In the other hand that made it easier, and it was already hard enough lol! I bet it's easier on desktop though...

Edit: you should add a race/regatta mode!