let package = Package(
  ...,
  dependencies: [
    .package(
      url: "https://github.com/thislooksfun/SwiftlySearch.git",
      from: "1.0.0"),
    ...
  ],
  ...
)

import SwiftlySearch
struct MRE: View {
  let items: [String]
  @State
  var searchText = ""
  var body: some View {
    NavigationView {
      List(items.filter { $0.localizedStandardContains(searchText) }) { item in
        Text(item)
      }.navigationBarSearch(self.$searchText)
    }
  }
}

struct ContentView: View {
    @State
    var searchText: String = ""
    var body: some View {
        NavigationView {
            ZStack {
                if searchText.isEmpty {
                    NormalView()
                } else {
                    SearchResultsView(text: searchText)
                }
            }
            .navigationBarSearch($searchText)
        }
    }
}
struct NormalView: View {
    var body: some View {
        Text("Some view")
    }
}
struct SearchResultsView: View {
    var text: String
    var body: some View {
        VStack {
            Text("You searched for \(text)")
            NavigationLink(destination: Text(text)) {
                Text("Let's go!")
            }
        }
    }
}