Transient

Excludes a configuration field from serialization and deserialization.

Fields annotated with @Transient are ignored when reading from or writing to the YAML configuration file. Use this for computed properties, internal state, or fields that should only exist in memory.

Usage:

data class AppConfig(
    val name: String = "my-app",

    @Transient
    val startedAt: Long = System.currentTimeMillis(),

    @Transient
    val isDebugBuild: Boolean = false
)