Cargo Features

minimp3_fixed has no features set by default.

[dependencies]
minimp3_fixed = { version = "0.5.4", features = ["async_tokio", "unix_sysv"] }
async_tokio = tokio
unix_sysv

Enables unix_sysv of slice-ring-buffer

slice-ring-buffer:

Uses a super-portable but potentially slower System V interprocess shared-memory implementation instead of system-specific ones on unix-like targets.

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.

tokio async_tokio?