Cargo Features

[dependencies]
faster-hex = { version = "0.9.0", default-features = false, features = ["std", "alloc", "serde"] }
default = serde, std

These default features are set whenever faster-hex is added without default-features = false somewhere in the dependency tree.

std default = alloc
alloc std
serde default

Enables serde

faster-hex has 4 features without comments.