Example for providing a CompositionLocal for the NavController so you don't need to pass it around

LocalNavController.kt

import androidx.compose.material.Button
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.staticCompositionLocalOf
import androidx.navigation.NavController
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.rememberNavController

val LocalNavController = staticCompositionLocalOf<NavController> {
    error("CompositionLocal LocalNavController not present")
}

@Composable
fun NavigationProvider(navController: NavController, content: @Composable () -> Unit) {
    CompositionLocalProvider(
        LocalNavController provides navController,
        content = content
    )
}

@Composable
fun MainNavigation() {
    val navController = rememberNavController()

    NavigationProvider(navController) {
        NavHost(navController = navController, startDestination = "home") {
            composable(route = "home") {
                HomeScreen()
            }

            composable(route = "detail") {
                // ...
            }
        }
    }
}

@Composable
fun HomeScreen() {
    val navController = LocalNavController.current
    Button(onClick = { navController.navigate("detail") }) {
        Text("Test")
    }
}