Cargo Features

hassium-navigation has no features set by default.

[dependencies]
hassium-navigation = { version = "0.1.3", features = ["parallel"] }
parallel = rayon

Enables parallel of hassium-core

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.

rayon parallel?