Sure, if you put in a lot of effort you could probably make a professional app with it. You'd need to recreate a bunch of features that come for free in more "b

Sure, if you put in a lot of effort you could probably make a professional app with it. You'd need to recreate a bunch of features that come for free in more "bloated" UI libraries. But you could do it! More likely, though, is that you won't and your "professional" app will just end up being bad for lack of those features.