- Appropriate log levels (debug, info, error)

- Contextual information included

- Zero`print()` statements

-**Smart DEBUG flag usage:** Internal app logging only active in DEBUG builds

**Example:**

let logger=Logger(subsystem:"com.rsyncui",category:"Execution")

logger.info("Starting rsync:\(command)")

logger.error("Process failed:\(error)")

funcdebugMessageOnly(_message:String) {

#if DEBUG

debug("\(message)")

#endif

}

**Impact:** Production-ready debugging capability with minimal performance overhead.

**Impact:** Production-ready debugging capability with minimal performance overhead. Internal app state logging has zero overhead in release builds due to`#if DEBUG` compilation flags.

2.**File I/O** - JSON configuration files accessed frequently

- Mitigation: Caching through observables

3.**Logging volume** - Substantial logging of rsync output

- Mitigation: OSLog handles efficiently

3.**Logging volume** - Two distinct types:

-**Rsync output:** Always captured and displayed to users (operational necessity - shows sync progress, file transfers, errors)

-**Internal debugging:** Only active behind`#if DEBUG` flag (zero overhead in production)

- Mitigation: OSLog handles efficiently; DEBUG logs compiled out in release builds