Cargo Features

ssb-tfk has no features set by default.

ssb-tfk = { version = "0.1.1", features = ["multiformats"] }
multiformats = ssb-multiformats

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.

ssb-multiformats multiformats?

Enables ssb-multiformats ^0.3.0