Work done so far in the app architecture setup.

Apps/Locations/Sources/Coordinators/LocationsAddCoordinator.swift

@@ -0,0 +1,35 @@
+//
+//  LocationsAddCoordinator.swift
+//  Locations
+//
+//  Created by Javier Cicchelli on 11/04/2023.
+//  Copyright © 2023 Röck+Cöde. All rights reserved.
+//
+
+import Core
+import UIKit
+
+class LocationsAddCoordinator: LocationsAddCoordinable {
+    
+    // MARK: Properties
+    
+    var children: [Coordinator] = []
+    var router: Router
+    
+    // MARK: Initialisers
+    
+    init(router: Router) {
+        self.router = router
+    }
+    
+    // MARK: Coordinator
+    
+    func present(animated: Bool, onDismiss: (() -> Void)?) {
+        router.present(
+            LocationsAddViewController(viewModel: .init(coordinator: self)),
+            animated: animated,
+            onDismiss: onDismiss
+        )
+    }
+    
+}

Apps/Locations/Sources/Coordinators/LocationsListCoordinator.swift

@@ -12,26 +12,44 @@ import UIKit
 class LocationsListCoordinator: LocationsListCoordinable {
 
     // MARK: Properties
-    
+
     var children: [Coordinator] = []
     var router: Router
     
+    private var viewController: UIViewController?
+
     // MARK: Initialisers
     
     init(router: Router) {
         self.router = router
     }
     
-    // MARK: Functions
+    // MARK: Coordinator
     
     func present(animated: Bool, onDismiss: (() -> Void)?) {
+        let navigationController = UINavigationController(rootViewController: LocationsListViewController(
+            viewModel: LocationsListViewModel(coordinator: self)
+        ))
+        
+        viewController = navigationController
+        
         router.present(
-            UINavigationController(rootViewController: LocationsListViewController(
+            navigationController,
-                viewModel: LocationsListViewModel(coordinator: self)
-            )),
             animated: animated,
             onDismiss: onDismiss
         )
     }
     
+    // MARK: LocationsListCoordinable
+    
+    func showAddLocation() {
+        guard let viewController else {
+            return
+        }
+        
+        let router = ModalNavigationRouter(parentViewController: viewController)
+        let child = 
+        print("ADD LOCATION PRESSED!")
+    }
+    
 }

Apps/Locations/Sources/Coordinators/Protocols/LocationsAddCoordinable.swift

@@ -0,0 +1,11 @@
+//
+//  LocationsAddCoordinable.swift
+//  Locations
+//
+//  Created by Javier Cicchelli on 11/04/2023.
+//  Copyright © 2023 Röck+Cöde. All rights reserved.
+//
+
+import Core
+
+protocol LocationsAddCoordinable: Coordinator {}

Apps/Locations/Sources/Coordinators/Protocols/LocationsListCoordinable.swift

@@ -8,4 +8,10 @@
 
 import Core
 
-protocol LocationsListCoordinable: Coordinator {}
+protocol LocationsListCoordinable: Coordinator {
+
+    // MARK: Functions
+    
+    func showAddLocation()
+
+}

Apps/Locations/Sources/Screens/LocationsAdd/LocationsAddViewController.swift

@@ -9,15 +9,15 @@
 import Core
 import UIKit
 
-class LocationsAddViewController: UIViewController, View {
+class LocationsAddViewController: UIViewController {
     
     // MARK: Properties
     
-    var viewModel: ViewModel
+    var viewModel: LocationsAddViewModel
     
     // MARK: Initialisers
     
-    init(viewModel: ViewModel) {
+    init(viewModel: LocationsAddViewModel) {
         self.viewModel = viewModel
         
         super.init(nibName: nil, bundle: nil)

Apps/Locations/Sources/Screens/LocationsAdd/LocationsAddViewModel.swift

@@ -9,7 +9,7 @@
 import Combine
 import Core
 
-class LocationsAddViewModel: ObservableObject, ViewModel {
+class LocationsAddViewModel: ObservableObject {
     
     // MARK: Properties
     

Apps/Locations/Sources/Screens/LocationsList/LocationsListViewController.swift

@@ -9,15 +9,15 @@
 import Core
 import UIKit
 
-class LocationsListViewController: UIViewController, View {
+class LocationsListViewController: UIViewController {
     
     // MARK: Properties
     
-    var viewModel: ViewModel
+    var viewModel: LocationsListViewModelable
     
     // MARK: Initialisers
     
-    init(viewModel: ViewModel) {
+    init(viewModel: LocationsListViewModelable) {
         self.viewModel = viewModel
         
         super.init(nibName: nil, bundle: nil)
@@ -32,9 +32,23 @@ class LocationsListViewController: UIViewController, View {
     override func viewDidLoad() {
         super.viewDidLoad()
         
+        navigationItem.rightBarButtonItem = UIBarButtonItem(
+            title: "Add",
+            style: .plain,
+            target: self,
+            action: #selector(addLocationPressed)
+        )
         title = "Locations"
 
-        view.backgroundColor = .white
+        view.backgroundColor = .systemBackground
     }
     
 }
+
+// MARK: - Helpers
+
+private extension LocationsListViewController {
+    @objc func addLocationPressed() {
+        viewModel.addLocationPressed()
+    }
+}

Apps/Locations/Sources/Screens/LocationsList/LocationsListViewModel.swift

@@ -9,16 +9,22 @@
 import Combine
 import Core
 
-class LocationsListViewModel: ObservableObject, ViewModel {
+class LocationsListViewModel: ObservableObject, LocationsListViewModelable {
-    
+
     // MARK: Properties
     
-    var coordinator: Coordinator
+    weak var coordinator: LocationsListCoordinable?
     
     // MARK: Initialisers
     
-    init(coordinator: Coordinator) {
+    init(coordinator: LocationsListCoordinable) {
         self.coordinator = coordinator
     }
+    
+    // MARK: Functions
+    
+    func addLocationPressed() {
+        coordinator?.showAddLocation()
+    }
 
 }

Apps/Locations/Sources/Screens/LocationsList/Protocols/LocationsListViewModelable.swift

@@ -0,0 +1,19 @@
+//
+//  LocationsListViewModelable.swift
+//  Locations
+//
+//  Created by Javier Cicchelli on 11/04/2023.
+//  Copyright © 2023 Röck+Cöde. All rights reserved.
+//
+
+protocol LocationsListViewModelable {
+    
+    // MARK: Properties
+    
+    var coordinator: LocationsListCoordinable? { get set }
+    
+    // MARK: Functions
+    
+    func addLocationPressed()
+    
+}

DeepLinking.xcodeproj/project.pbxproj

@@ -11,7 +11,10 @@
 		46C3B7CB29E5CD3200F8F57C /* LocationsListViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7CA29E5CD3200F8F57C /* LocationsListViewModel.swift */; };
 		46C3B7CF29E5D00E00F8F57C /* LocationsAddViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7CE29E5D00E00F8F57C /* LocationsAddViewModel.swift */; };
 		46C3B7D129E5D06D00F8F57C /* LocationsAddViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7D029E5D06D00F8F57C /* LocationsAddViewController.swift */; };
+		46C3B7D629E5E50500F8F57C /* LocationsListViewModelable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7D529E5E50500F8F57C /* LocationsListViewModelable.swift */; };
 		46C3B7D829E5E55000F8F57C /* LocationsListCoordinable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7D729E5E55000F8F57C /* LocationsListCoordinable.swift */; };
+		46C3B7DC29E5ED2300F8F57C /* LocationsAddCoordinable.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7DB29E5ED2300F8F57C /* LocationsAddCoordinable.swift */; };
+		46C3B7DE29E5ED2E00F8F57C /* LocationsAddCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46C3B7DD29E5ED2E00F8F57C /* LocationsAddCoordinator.swift */; };
 		46EB331B29E1CE04001D5EAF /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46EB331A29E1CE04001D5EAF /* AppDelegate.swift */; };
 		46EB331F29E1CE04001D5EAF /* LocationsListViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 46EB331E29E1CE04001D5EAF /* LocationsListViewController.swift */; };
 		46EB332729E1CE05001D5EAF /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 46EB332629E1CE05001D5EAF /* Assets.xcassets */; };
@@ -119,7 +122,10 @@
 		46C3B7CA29E5CD3200F8F57C /* LocationsListViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsListViewModel.swift; sourceTree = "<group>"; };
 		46C3B7CE29E5D00E00F8F57C /* LocationsAddViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsAddViewModel.swift; sourceTree = "<group>"; };
 		46C3B7D029E5D06D00F8F57C /* LocationsAddViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsAddViewController.swift; sourceTree = "<group>"; };
+		46C3B7D529E5E50500F8F57C /* LocationsListViewModelable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsListViewModelable.swift; sourceTree = "<group>"; };
 		46C3B7D729E5E55000F8F57C /* LocationsListCoordinable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsListCoordinable.swift; sourceTree = "<group>"; };
+		46C3B7DB29E5ED2300F8F57C /* LocationsAddCoordinable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsAddCoordinable.swift; sourceTree = "<group>"; };
+		46C3B7DD29E5ED2E00F8F57C /* LocationsAddCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationsAddCoordinator.swift; sourceTree = "<group>"; };
 		46EB325829E1BD5C001D5EAF /* Wikipedia.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Wikipedia.xcodeproj; path = Wikipedia/Wikipedia.xcodeproj; sourceTree = "<group>"; };
 		46EB331829E1CE04001D5EAF /* Locations.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Locations.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		46EB331A29E1CE04001D5EAF /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
@@ -150,6 +156,7 @@
 			isa = PBXGroup;
 			children = (
 				46C3B7C529E5BF1500F8F57C /* LocationsListCoordinator.swift */,
+				46C3B7DD29E5ED2E00F8F57C /* LocationsAddCoordinator.swift */,
 				46C3B7D929E5E7F900F8F57C /* Protocols */,
 			);
 			path = Coordinators;
@@ -169,6 +176,7 @@
 			children = (
 				46EB331E29E1CE04001D5EAF /* LocationsListViewController.swift */,
 				46C3B7CA29E5CD3200F8F57C /* LocationsListViewModel.swift */,
+				46C3B7DA29E5E80B00F8F57C /* Protocols */,
 			);
 			path = LocationsList;
 			sourceTree = "<group>";
@@ -176,8 +184,8 @@
 		46C3B7CD29E5CFCD00F8F57C /* LocationsAdd */ = {
 			isa = PBXGroup;
 			children = (
-				46C3B7CE29E5D00E00F8F57C /* LocationsAddViewModel.swift */,
 				46C3B7D029E5D06D00F8F57C /* LocationsAddViewController.swift */,
+				46C3B7CE29E5D00E00F8F57C /* LocationsAddViewModel.swift */,
 			);
 			path = LocationsAdd;
 			sourceTree = "<group>";
@@ -186,6 +194,15 @@
 			isa = PBXGroup;
 			children = (
 				46C3B7D729E5E55000F8F57C /* LocationsListCoordinable.swift */,
+				46C3B7DB29E5ED2300F8F57C /* LocationsAddCoordinable.swift */,
+			);
+			path = Protocols;
+			sourceTree = "<group>";
+		};
+		46C3B7DA29E5E80B00F8F57C /* Protocols */ = {
+			isa = PBXGroup;
+			children = (
+				46C3B7D529E5E50500F8F57C /* LocationsListViewModelable.swift */,
 			);
 			path = Protocols;
 			sourceTree = "<group>";
@@ -462,7 +479,10 @@
 				46C3B7C629E5BF1500F8F57C /* LocationsListCoordinator.swift in Sources */,
 				46EB331F29E1CE04001D5EAF /* LocationsListViewController.swift in Sources */,
 				46EB331B29E1CE04001D5EAF /* AppDelegate.swift in Sources */,
+				46C3B7DE29E5ED2E00F8F57C /* LocationsAddCoordinator.swift in Sources */,
+				46C3B7DC29E5ED2300F8F57C /* LocationsAddCoordinable.swift in Sources */,
 				46C3B7D829E5E55000F8F57C /* LocationsListCoordinable.swift in Sources */,
+				46C3B7D629E5E50500F8F57C /* LocationsListViewModelable.swift in Sources */,
 				46C3B7CF29E5D00E00F8F57C /* LocationsAddViewModel.swift in Sources */,
 				46C3B7D129E5D06D00F8F57C /* LocationsAddViewController.swift in Sources */,
 				46C3B7CB29E5CD3200F8F57C /* LocationsListViewModel.swift in Sources */,