Cargo Features

actix-signal has no features set by default.

[dependencies]
actix-signal = { version = "0.3.0", features = ["derive"] }
derive = actix-signal-derive

Provide derive(SignalHandler) macro

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.

actix-signal-derive derive?