How practical is react native for writing desktop / mobile apps from the same javascript codebase? I know the mainline has android / ios ux outputs and there a

How practical is react native for writing desktop / mobile apps from the same javascript codebase? I know the mainline has android / ios ux outputs and there are forks that have osx & windows outputs. How does it compare to electron? From what I understand, react native is just a javascript vm + native UX libs. I've also heard that react native isn't as much of a priority anymore at facebook.