log4rs

Allows logging behavior to be adjusted via external YAML/JSON files without recompiling, as demonstrated in the quick start example with init_file.

Supports setting different log levels for specific modules, enabling fine-grained debugging, as shown in the YAML configuration with loggers for app::backend::db.

Includes automatic file rotation based on size or time and optional compression with gzip or zstd, helping manage disk space, though with performance caveats.

Compatible with WebAssembly targets for logging in browser or edge applications, making it versatile for modern Rust deployments.