nothing::[Probably] is a better [Option].
pub enum Probably<T> {
Nothing,
Something(T),
}
The point is that you can use [Probably] as the return type of your main function:
``` use nothing::{Probably, Nothing};
fn main() -> Probably<()> { Nothing } ```
Exit code is 0 if it is [Something], 1 if [Nothing].
You can even use the ? operator the way you would with [Option] and [Result]. See ./examples/main.rs
Probably nothing.