I would suggest Java just because you have a strong background in it, which allow you to move faster. I would throw in using C# with .NET Core and Avalonia [0]

I would suggest Java just because you have a strong background in it, which allow you to move faster. I would throw in using C# with .NET Core and Avalonia [0] as another option, though that would require you learning C#. [0] https://github.com/AvaloniaUI/Avalonia https://github.com/AvaloniaUI/Avalonia