Typewriter sounds?… Please?

I’m a writer. I love the sound of an old fashioned typewriter, but the typing sounds on my iPad… Not so much. How hard would it be to give people the option to change the sound to an old fashioned typewriter with return carriage and the striking of the keys.

I know there’s apps that use it, but they’re only for a single app use and not across the other apps, or they’re from a third party so everything I write the developer can see.

Or, I would have to pay $200 for a physical keyboard that does the same thing.

Seems silly. Can’t we just get the option through the general settings?