selectable-3.kt

Column(
    modifier = Modifier
        ...
    // Adding the selectableGroup here:
        .selectableGroup(),
    verticalArrangement = Arrangement.SpaceBetween,
) {
    inputs.map { input ->
        RadioInputRow(
            text = input, 
            checked = selected == input, 
            onChange = { selected = it }
        )
        ...
    }
}