How to navigate from a Composable to an Activity in Jetpack Compose?

What are the ways in which navigation is possible between a composable and an Activity and vice versa? Can I do it by using the startActivity(...) method or is the only way to create Screens and NavController?

In newer version of compose use LocalContext.
In older versions (1.0.0-alpha08 and before) use AmbientContext:

@Composable
fun MainScreen() {
    val context = LocalContext.current

    Button(onClick = {
        context.startActivity(Intent(context, ListActivity::class.java))
    }) {
        Text(text = "Show List")
    }
}