diff --git a/.swiftformat b/.swiftformat
new file mode 100644
index 0000000..b4d6094
--- /dev/null
+++ b/.swiftformat
@@ -0,0 +1,9 @@
+
+# exclude files
+--exclude Carthage,Pods
+
+# change rules
+--stripunusedargs closure-only
+
+# disable rules
+--disable strongOutlets,numberFormatting,emptyBraces,andOperator
diff --git a/.swiftlint.yml b/.swiftlint.yml
new file mode 100644
index 0000000..1eaf353
--- /dev/null
+++ b/.swiftlint.yml
@@ -0,0 +1,41 @@
+disabled_rules:
+  - colon
+  - comma
+  - control_statement
+  - identifier_name
+  - type_name
+  - trailing_comma
+  - multiple_closures_with_trailing_closure
+  - opening_brace
+
+opt_in_rules:
+  - empty_count
+  - sorted_imports
+  - anyobject_protocol
+
+excluded:
+  - Carthage
+  - Pods
+  - vendor/bundle
+
+force_cast: error
+
+force_try:
+  severity: error
+
+type_body_length:
+  - 300
+  - 400
+
+function_body_length:
+  - 200
+  - 300
+
+file_length:
+  - 500
+  - 1000
+
+line_length: 200
+
+nesting:
+  type_level: 3
diff --git a/FireTodo.xcodeproj/project.pbxproj b/FireTodo.xcodeproj/project.pbxproj
index cd50d26..8e29ec9 100644
--- a/FireTodo.xcodeproj/project.pbxproj
+++ b/FireTodo.xcodeproj/project.pbxproj
@@ -349,6 +349,7 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 160702982337231400A57BE8 /* Build configuration list for PBXNativeTarget "FireTodo" */;
 			buildPhases = (
+				166451F82340FE0400E0E7AB /* SwiftLint */,
 				678E1EE18A824791FD50167E /* [CP] Check Pods Manifest.lock */,
 				160702802337231300A57BE8 /* Sources */,
 				160702812337231300A57BE8 /* Frameworks */,
@@ -412,6 +413,24 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
+		166451F82340FE0400E0E7AB /* SwiftLint */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			name = SwiftLint;
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "${SRCROOT}/Pods/SwiftLint/swiftlint\n";
+		};
 		6332EE6E8916A88AE530C93A /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
diff --git a/FireTodo/AppDelegate.swift b/FireTodo/AppDelegate.swift
index 6731a78..b601e3d 100644
--- a/FireTodo/AppDelegate.swift
+++ b/FireTodo/AppDelegate.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import UIKit
 import Firebase
+import UIKit
 
 @UIApplicationMain
 class AppDelegate: UIResponder, UIApplicationDelegate {
@@ -19,4 +19,3 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
     }
 }
-
diff --git a/FireTodo/Combine/Auth+Combine.swift b/FireTodo/Combine/Auth+Combine.swift
index 27387e7..9000754 100644
--- a/FireTodo/Combine/Auth+Combine.swift
+++ b/FireTodo/Combine/Auth+Combine.swift
@@ -26,7 +26,7 @@ extension CombineAuth {
             let listener = addListener(auth) { auth, user in
                 _ = subscriber.receive((auth, user))
             }
-            self._cancel = { removeListener($0, listener) }
+            _cancel = { removeListener($0, listener) }
         }
 
         public func request(_ demand: Subscribers.Demand) {}
@@ -53,7 +53,7 @@ extension CombineAuth {
             self.removeListener = removeListener
         }
 
-        public func receive<S>(subscriber: S) where S : Subscriber, S.Failure == Failure, S.Input == Output {
+        public func receive<S>(subscriber: S) where S: Subscriber, S.Failure == Failure, S.Input == Output {
             subscriber.receive(subscription: Subscription(
                 subscriber: subscriber,
                 auth: auth,
diff --git a/FireTodo/ContentView.swift b/FireTodo/ContentView.swift
index 66a5c0c..00c4e76 100644
--- a/FireTodo/ContentView.swift
+++ b/FireTodo/ContentView.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import SwiftUI
 import Combine
+import SwiftUI
 
 struct ContentView: View {
     @EnvironmentObject private var store: AppStore
@@ -19,11 +19,9 @@ struct ContentView: View {
                     return AnyView(SignUpView())
                 }
             }
-        }())
-        .onAppear { self.store.dispatch(AuthAction.subscribe()) }
-        .onDisappear {
-            self.store.dispatch(AuthAction.subscribe())
-        }
+            }())
+            .onAppear { self.store.dispatch(AuthAction.subscribe()) }
+            .onDisappear { self.store.dispatch(AuthAction.subscribe()) }
     }
 }
 
diff --git a/FireTodo/Firebase/Model.swift b/FireTodo/Firebase/Model.swift
index d4a2618..59c57b4 100644
--- a/FireTodo/Firebase/Model.swift
+++ b/FireTodo/Firebase/Model.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import Foundation
 import FireSnapshot
+import Foundation
 
 /// Name space for Cloud Firestore document models.
 enum Model {
diff --git a/FireTodo/Firebase/Snapshot+Identifiable.swift b/FireTodo/Firebase/Snapshot+Identifiable.swift
index e580a3d..d9971f7 100644
--- a/FireTodo/Firebase/Snapshot+Identifiable.swift
+++ b/FireTodo/Firebase/Snapshot+Identifiable.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import Foundation
 import FireSnapshot
+import Foundation
 
 extension Snapshot: Identifiable {
     public var id: String {
diff --git a/FireTodo/Redux/Auth/AuthAction.swift b/FireTodo/Redux/Auth/AuthAction.swift
index df26c2f..7e8acf4 100644
--- a/FireTodo/Redux/Auth/AuthAction.swift
+++ b/FireTodo/Redux/Auth/AuthAction.swift
@@ -2,12 +2,12 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
+import Combine
+import Firebase
+import FireSnapshot
 import Foundation
 import ReSwift
 import ReSwiftThunk
-import Firebase
-import FireSnapshot
-import Combine
 
 enum AuthAction: Action {
     case finishInitialLoad
@@ -36,8 +36,8 @@ enum AuthAction: Action {
                         finishInitialLoad()
                         return AuthAction.updateUser(user: nil)
                     }
-            }
-            .sink(receiveValue: dispatch)
+                }
+                .sink(receiveValue: dispatch)
 
             dispatch(AuthAction.subscribeAuthChange(cancellable: cancellable))
         }
diff --git a/FireTodo/Redux/Auth/AuthState.swift b/FireTodo/Redux/Auth/AuthState.swift
index 5dcec9c..15ada17 100644
--- a/FireTodo/Redux/Auth/AuthState.swift
+++ b/FireTodo/Redux/Auth/AuthState.swift
@@ -2,17 +2,18 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import Foundation
-import ReSwift
+import Combine
 import Firebase
 import FireSnapshot
-import Combine
+import Foundation
+import ReSwift
 
 struct AuthState: StateType {
     enum LoadingState {
         case initial
         case loaded
     }
+
     var loadingState: LoadingState = .initial
     var user: Snapshot<Model.User>?
     var listenerHandle: AuthStateDidChangeListenerHandle?
diff --git a/FireTodo/Redux/EditTask/EditTaskAction.swift b/FireTodo/Redux/EditTask/EditTaskAction.swift
index 756db33..ace073c 100644
--- a/FireTodo/Redux/EditTask/EditTaskAction.swift
+++ b/FireTodo/Redux/EditTask/EditTaskAction.swift
@@ -2,9 +2,9 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
+import FireSnapshot
 import Foundation
 import ReSwift
-import FireSnapshot
 
 enum EditTaskAction: Action {
     case startRequest
@@ -13,7 +13,7 @@ enum EditTaskAction: Action {
     case reset
 
     static func saveTask(_ taskData: Model.Task, userID: String) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { dispatch, _ in
             dispatch(EditTaskAction.startRequest)
             Snapshot(data: taskData, path: Model.Path.tasks(userID: userID)).create { result in
                 dispatch(EditTaskAction.endRequest)
@@ -28,7 +28,7 @@ enum EditTaskAction: Action {
     }
 
     static func updateTask(_ taskData: Model.Task, taskID: String, userID: String) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { dispatch, _ in
             dispatch(EditTaskAction.startRequest)
             Snapshot(data: taskData, path: Model.Path.task(userID: userID, taskID: taskID)).update { result in
                 dispatch(EditTaskAction.endRequest)
diff --git a/FireTodo/Redux/Main/AppStore.swift b/FireTodo/Redux/Main/AppStore.swift
index 5d637f5..f51b3ce 100644
--- a/FireTodo/Redux/Main/AppStore.swift
+++ b/FireTodo/Redux/Main/AppStore.swift
@@ -2,9 +2,9 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
+import Combine
 import Foundation
 import ReSwift
-import Combine
 
 final class AppStore: StoreSubscriber, DispatchingStoreType, ObservableObject {
     private let store: Store<AppState>
diff --git a/FireTodo/Redux/Middleware/Logging/LoggingMiddleware.swift b/FireTodo/Redux/Middleware/Logging/LoggingMiddleware.swift
index b6eaf24..2ca8e40 100644
--- a/FireTodo/Redux/Middleware/Logging/LoggingMiddleware.swift
+++ b/FireTodo/Redux/Middleware/Logging/LoggingMiddleware.swift
@@ -6,7 +6,7 @@ import Foundation
 import ReSwift
 
 func createLoggingMiddleware() -> Middleware<AppState> {
-    return { dispatch, getState in
+    return { _, _ in
         { next in
             { action in
                 print(">  \(action)")
diff --git a/FireTodo/Redux/SignUp/SignUpAction.swift b/FireTodo/Redux/SignUp/SignUpAction.swift
index 878a189..ce8d0a7 100644
--- a/FireTodo/Redux/SignUp/SignUpAction.swift
+++ b/FireTodo/Redux/SignUp/SignUpAction.swift
@@ -2,11 +2,11 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
+import Firebase
+import FireSnapshot
 import Foundation
 import ReSwift
 import ReSwiftThunk
-import Firebase
-import FireSnapshot
 
 enum SignUpAction: Action {
     case signUpStarted
@@ -31,7 +31,7 @@ enum SignUpAction: Action {
     }
 
     private static func createUser(with uid: String, name: String, db: Firestore = .firestore()) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { dispatch, _ in
             let user = Model.User(username: name)
             Snapshot<Model.User>.init(data: user, path: Model.Path.user(userID: uid)).create { result in
                 switch result {
diff --git a/FireTodo/Redux/Tasks/TasksAction.swift b/FireTodo/Redux/Tasks/TasksAction.swift
index 65a3106..854c437 100644
--- a/FireTodo/Redux/Tasks/TasksAction.swift
+++ b/FireTodo/Redux/Tasks/TasksAction.swift
@@ -2,10 +2,10 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import Foundation
-import ReSwift
 import Firebase
 import FireSnapshot
+import Foundation
+import ReSwift
 
 enum TasksAction: Action {
     case updateTasks(tasks: [Snapshot<Model.Task>])
@@ -13,7 +13,7 @@ enum TasksAction: Action {
     case removeListener
 
     static func subscribe(userID: String) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { dispatch, _ in
             let listener = Snapshot<Model.Task>.listen(Model.Path.tasks(userID: userID)) { result in
                 switch result {
                 case let .success(tasks):
@@ -36,13 +36,13 @@ enum TasksAction: Action {
     }
 
     static func deleteTask(_ task: Snapshot<Model.Task>) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { _, _ in
             task.remove()
         }
     }
 
     static func toggleTaskCompleted(_ task: Snapshot<Model.Task>) -> AppThunkAction {
-        AppThunkAction { dispatch, getState in
+        AppThunkAction { _, _ in
             task.data.completed.toggle()
             task.update()
         }
diff --git a/FireTodo/Redux/Tasks/TasksReducer.swift b/FireTodo/Redux/Tasks/TasksReducer.swift
index 13e7e8c..759e28a 100644
--- a/FireTodo/Redux/Tasks/TasksReducer.swift
+++ b/FireTodo/Redux/Tasks/TasksReducer.swift
@@ -15,7 +15,7 @@ enum TasksReducer {
                 case let .updateTasks(tasks):
                     state.tasks = tasks
                     return state
-                case .registerListener(let listener):
+                case let .registerListener(listener):
                     state.tasksListener = listener
                     return state
                 case .removeListener:
diff --git a/FireTodo/Redux/Tasks/TasksState.swift b/FireTodo/Redux/Tasks/TasksState.swift
index cebeb21..f4782b1 100644
--- a/FireTodo/Redux/Tasks/TasksState.swift
+++ b/FireTodo/Redux/Tasks/TasksState.swift
@@ -2,10 +2,10 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import Foundation
-import ReSwift
 import Firebase
 import FireSnapshot
+import Foundation
+import ReSwift
 
 struct TasksState: StateType {
     var tasks: [Snapshot<Model.Task>] = []
diff --git a/FireTodo/SceneDelegate.swift b/FireTodo/SceneDelegate.swift
index b03de57..75fb212 100644
--- a/FireTodo/SceneDelegate.swift
+++ b/FireTodo/SceneDelegate.swift
@@ -2,12 +2,11 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import UIKit
-import SwiftUI
 import ReSwift
+import SwiftUI
+import UIKit
 
 class SceneDelegate: UIResponder, UIWindowSceneDelegate {
-
     var window: UIWindow?
     private lazy var main: AppMain = .init()
 
@@ -37,4 +36,3 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
     func sceneDidEnterBackground(_ scene: UIScene) {
     }
 }
-
diff --git a/FireTodo/Views/Common/LoadingView.swift b/FireTodo/Views/Common/LoadingView.swift
index 48e7a67..1e42afa 100644
--- a/FireTodo/Views/Common/LoadingView.swift
+++ b/FireTodo/Views/Common/LoadingView.swift
@@ -9,6 +9,7 @@ struct LoadingView: View {
     init(isLoading: Bool) {
         self.isLoading = isLoading
     }
+
     var body: some View {
         ZStack {
             if isLoading {
@@ -25,8 +26,10 @@ struct LoadingView: View {
     }
 }
 
+#if DEBUG
 struct LoadingView_Previews: PreviewProvider {
     static var previews: some View {
         LoadingView(isLoading: true)
     }
 }
+#endif
diff --git a/FireTodo/Views/Common/RightDownFloatButton.swift b/FireTodo/Views/Common/RightDownFloatButton.swift
index ac1784b..62252b9 100644
--- a/FireTodo/Views/Common/RightDownFloatButton.swift
+++ b/FireTodo/Views/Common/RightDownFloatButton.swift
@@ -5,11 +5,11 @@
 import SwiftUI
 
 struct RightDownFloatButton: View {
-
     private let action: () -> Void
     init(action: @escaping () -> Void = {}) {
         self.action = action
     }
+
     var body: some View {
         VStack {
             Spacer()
@@ -29,9 +29,10 @@ struct RightDownFloatButton: View {
     }
 }
 
+#if DEBUG
 struct RightDownFloatButton_Previews: PreviewProvider {
     static var previews: some View {
         RightDownFloatButton()
     }
 }
-
+#endif
diff --git a/FireTodo/Views/EditTask/ColorSelectView.swift b/FireTodo/Views/EditTask/ColorSelectView.swift
index d9ff14a..222e260 100644
--- a/FireTodo/Views/EditTask/ColorSelectView.swift
+++ b/FireTodo/Views/EditTask/ColorSelectView.swift
@@ -28,8 +28,10 @@ struct ColorSelectView: View {
     }
 }
 
+#if DEBUG
 struct ColorSelectView_Previews: PreviewProvider {
     static var previews: some View {
         ColorSelectView(color: .red, selected: true)
     }
 }
+#endif
diff --git a/FireTodo/Views/EditTask/EditTaskView.swift b/FireTodo/Views/EditTask/EditTaskView.swift
index 15a0fce..92e847a 100644
--- a/FireTodo/Views/EditTask/EditTaskView.swift
+++ b/FireTodo/Views/EditTask/EditTaskView.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import SwiftUI
 import FireSnapshot
+import SwiftUI
 
 class EditTaskViewModel: ObservableObject {
     @Published var title: String = ""
@@ -46,7 +46,7 @@ struct EditTaskView: View {
 
     init(task: Snapshot<Model.Task>? = nil) {
         self.task = task
-        viewModel  = EditTaskViewModel(task: task)
+        viewModel = EditTaskViewModel(task: task)
     }
 
     var body: some View {
@@ -72,7 +72,7 @@ struct EditTaskView: View {
                                         withAnimation {
                                             self.viewModel.color = color
                                         }
-                                }
+                                    }
                             }
 
                             Spacer()
@@ -117,8 +117,10 @@ struct EditTaskView: View {
     }
 }
 
+#if DEBUG
 struct EditTaskView_Previews: PreviewProvider {
     static var previews: some View {
-        EditTaskView()
+        EditTaskView().environmentObject(AppMain().store)
     }
 }
+#endif
diff --git a/FireTodo/Views/Profile/ProfileView.swift b/FireTodo/Views/Profile/ProfileView.swift
index 74aa8ec..57da33e 100644
--- a/FireTodo/Views/Profile/ProfileView.swift
+++ b/FireTodo/Views/Profile/ProfileView.swift
@@ -32,7 +32,7 @@ struct ProfileView: View {
                     .overlay(
                         Capsule(style: .continuous)
                             .stroke(Color.primary, lineWidth: 2.0)
-                )
+                    )
             }
             .disabled(self.store.state.authState.user == nil)
 
@@ -52,13 +52,17 @@ struct ProfileView: View {
                     ActionSheet.Button.destructive(Text("Sign Out")) {
                         self.store.dispatch(AuthAction.signOut())
                     },
-                    ActionSheet.Button.cancel()])
+                    ActionSheet.Button.cancel(),
+                ]
+            )
         }
     }
 }
 
-//struct ProfileView_Previews: PreviewProvider {
-//    static var previews: some View {
-//        ProfileView()
-//    }
-//}
+#if DEBUG
+struct ProfileView_Previews: PreviewProvider {
+    static var previews: some View {
+        ProfileView().environmentObject(AppMain().store)
+    }
+}
+#endif
diff --git a/FireTodo/Views/SignUp/SignUpView.swift b/FireTodo/Views/SignUp/SignUpView.swift
index 197fca3..e37c590 100644
--- a/FireTodo/Views/SignUp/SignUpView.swift
+++ b/FireTodo/Views/SignUp/SignUpView.swift
@@ -10,6 +10,7 @@ struct SignUpView: View {
     private var canRegister: Bool {
         name.count >= 3 && name.count <= 16
     }
+
     var body: some View {
         GeometryReader { geometry in
             ZStack {
@@ -25,7 +26,6 @@ struct SignUpView: View {
                     }
                     .padding()
 
-
                     Button(action: {
                         self.store.dispatch(SignUpAction.signUp(with: self.name))
                     }) {
@@ -36,7 +36,7 @@ struct SignUpView: View {
                             .overlay(
                                 Capsule(style: .continuous)
                                     .stroke(self.canRegister ? Color.primary : Color.gray, lineWidth: 2.0)
-                        )
+                            )
                     }
                     .opacity(self.canRegister ? 1.0 : 0.5)
                     .disabled(!self.canRegister)
@@ -50,9 +50,9 @@ struct SignUpView: View {
 }
 
 #if DEBUG
-struct SignUpView_Previews: PreviewProvider {
-    static var previews: some View {
-        SignUpView()
+    struct SignUpView_Previews: PreviewProvider {
+        static var previews: some View {
+            SignUpView().environmentObject(AppMain().store)
+        }
     }
-}
 #endif
diff --git a/FireTodo/Views/Tasks/TasksRow.swift b/FireTodo/Views/Tasks/TasksRow.swift
index d99213e..fde11b9 100644
--- a/FireTodo/Views/Tasks/TasksRow.swift
+++ b/FireTodo/Views/Tasks/TasksRow.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import SwiftUI
 import FireSnapshot
+import SwiftUI
 
 struct TasksRow: View {
     private let task: Snapshot<Model.Task>
@@ -13,6 +13,7 @@ struct TasksRow: View {
         self.task = task
         self.onTapCompleted = onTapCompleted
     }
+
     var body: some View {
         VStack {
             HStack(spacing: 16.0) {
@@ -48,8 +49,10 @@ struct TasksRow: View {
     }
 }
 
-//struct TasksRow_Previews: PreviewProvider {
-//    static var previews: some View {
-//        TasksRow(task: .init(title: "test")) {}
-//    }
-//}
+#if DEBUG
+struct TasksRow_Previews: PreviewProvider {
+    static var previews: some View {
+        TasksRow(task: Snapshot<Model.Task>(data: .init(), path: Model.Path.tasks(userID: "xxx"))) {}
+    }
+}
+#endif
diff --git a/FireTodo/Views/Tasks/TasksView.swift b/FireTodo/Views/Tasks/TasksView.swift
index 582f013..64f2e9b 100644
--- a/FireTodo/Views/Tasks/TasksView.swift
+++ b/FireTodo/Views/Tasks/TasksView.swift
@@ -2,8 +2,8 @@
 // Copyright © Suguru Kishimoto. All rights reserved.
 //
 
-import SwiftUI
 import FireSnapshot
+import SwiftUI
 
 class DeleteActionSheetState: ObservableObject {
     @Published var showActionSheet: Bool = false
@@ -71,8 +71,7 @@ struct TasksView: View {
                     Image(systemName: "person.crop.circle.fill")
                         .resizable()
                         .frame(width: 30.0, height: 30.0)
-                }
-            )
+            })
         }
         .background(
             EmptyView().sheet(isPresented: $showEditTask) {
@@ -97,7 +96,9 @@ struct TasksView: View {
                             self.store.dispatch(TasksAction.deleteTask(task))
                         }
                     },
-                    ActionSheet.Button.cancel()])
+                    ActionSheet.Button.cancel(),
+                ]
+            )
         }
         .onAppear {
             if let userID = self.store.state.authState.user?.reference.documentID {
@@ -110,8 +111,10 @@ struct TasksView: View {
     }
 }
 
+#if DEBUG
 struct TasksView_Previews: PreviewProvider {
     static var previews: some View {
-        TasksView()
+        TasksView().environmentObject(AppMain().store)
     }
 }
+#endif
diff --git a/Podfile b/Podfile
index dad446c..b0595f5 100644
--- a/Podfile
+++ b/Podfile
@@ -1,6 +1,10 @@
 source 'https://cdn.cocoapods.org/'
 platform :ios, '13.0'
 
+# Tools
+pod 'SwiftFormat/CLI', '~> 0.40.0'
+pod 'SwiftLint', '~> 0.35.0'
+
 target 'FireTodo' do
   use_frameworks!
   # Firebase
diff --git a/Podfile.lock b/Podfile.lock
index 3f00d00..e1c5722 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -122,6 +122,8 @@ PODS:
     - ReSwiftThunk/Core (= 1.2.0)
   - ReSwiftThunk/Core (1.2.0):
     - ReSwift (~> 5.0)
+  - SwiftFormat/CLI (0.40.12)
+  - SwiftLint (0.35.0)
 
 DEPENDENCIES:
   - Firebase/Auth
@@ -130,10 +132,14 @@ DEPENDENCIES:
   - FireSnapshot (~> 0.1)
   - ReSwift (~> 5.0)
   - ReSwiftThunk (~> 1.2)
+  - SwiftFormat/CLI (~> 0.40.0)
+  - SwiftLint (~> 0.35.0)
 
 SPEC REPOS:
   https://cdn.cocoapods.org/:
     - FireSnapshot
+    - SwiftFormat
+    - SwiftLint
   https://github.com/CocoaPods/Specs.git:
     - BoringSSL-GRPC
     - Firebase
@@ -182,7 +188,9 @@ SPEC CHECKSUMS:
   Protobuf: 67fb42ba613def994e61854de2b3164f13790cc4
   ReSwift: 628f1a9b3ee52e3b3ca2a644435472fd77afafe1
   ReSwiftThunk: 23c8ea9092d9dc94b72005f19352dbd37fa42533
+  SwiftFormat: 73667bbb741386b0febf0bd1a1b8c502aa9d1c98
+  SwiftLint: 5553187048b900c91aa03552807681bb6b027846
 
-PODFILE CHECKSUM: 4d4cb6396afd5778bcac238e3a77027705402de9
+PODFILE CHECKSUM: ceb8b846a35663172ff47edadcc9210f653fd031
 
 COCOAPODS: 1.8.1
diff --git a/scripts/format.sh b/scripts/format.sh
new file mode 100755
index 0000000..713528c
--- /dev/null
+++ b/scripts/format.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+cd `dirname $0`
+cd ../
+
+./Pods/SwiftFormat/CommandLineTool/swiftformat FireTodo --config '.swiftformat'