koin-core/org.koin.core.module.dsl/override

override

inline fun <T> BeanDefinition<out T>.override()

Mark this definition as allowing override, even when global allowOverride is false. Used within withOptions { } block.

This enables targeted overrides for specific definitions without opening up all definitions to be overridden globally.

Example:

koinApplication {
    allowOverride(false)  // Strict mode - no overrides by default
    modules(
        module { single { ProductionService() } },
        module {
            single { TestService() } withOptions {
                override()  // Only this definition can override
            }
        }
    )
}