Non-ugly ways to implement a 'static' class or namespace?

[Adam D Ruppe]

On Thursday, 9 February 2023 at 12:31:03 UTC, thebluepandabear 
wrote:
> I am actually taking a computer science class and I need to 
> create desktop apps to pass and get through school.

This is pretty easy in D. Like what specific kind of desktop app?