Cargo Features

rustica-keys has no features set by default.

[dependencies]
rustica-keys = { version = "0.3.6", features = ["yubikey"] }
yubikey = yubikey-piv

Affects rustica-keys::yubikey

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

yubikey-piv yubikey?