Cargo Features

[dependencies]
wasm-bus-tty = { version = "1.2.1", default-features = false, features = ["frontend", "sys"] }
default = frontend

The frontend feature is set by default whenever wasm-bus-tty is added without default-features = false somewhere in the dependency tree.

frontend default

Enables syscalls of wasm-bus

sys = libc

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.

libc not wasm32 sys?