diff --git a/PublicViewController.xctemplate/ViewController+Injectable+Interactable.swift b/PublicViewController.xctemplate/ViewController+Injectable+Interactable.swift
index 8686d81..a47a86b 100644
--- a/PublicViewController.xctemplate/ViewController+Injectable+Interactable.swift
+++ b/PublicViewController.xctemplate/ViewController+Injectable+Interactable.swift
@@ -6,27 +6,29 @@ import AppCore
 public final class ___FILEBASENAME___: UIViewController, Instantiatable, Injectable, Interactable {
 
     // MARK: - Mew.Instantiatable
-    public struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     public typealias Environment = EnvironmentProvider
     public var environment: Environment
 
     // MARK: - Mew.Injectable
-    public func input(_ input: Input) {
-        <#code#>
+    private var input: Input {
+        didSet { updateUI() }
     }
-
-    // MARK: - Mew.Interactable
-    public struct Output {
-        let <#name#> = <#value#>
+    
+    func input(_ input: Input) {
+        self.input = input
     }
-    public func output(_ handler: ((Output) -> Void)?) {
-        <#code#>
+
+    // MARK: - Mew.Emittable
+    typealias Output = <#value#>
+    private var handler: ((Output) -> Void)?
+    func output(_ handler: ((Output) -> Void)?) {
+        self.handler = handler
     }
 
     public init(with input: Input, environment: Environment) {
         self.environment = environment
+        self.input = input
         super.init(nibName: nil, bundle: Bundle(for: type(of: self)))
     }
 
diff --git a/PublicViewController.xctemplate/ViewController+Injectable.swift b/PublicViewController.xctemplate/ViewController+Injectable.swift
index 26161a6..183efba 100644
--- a/PublicViewController.xctemplate/ViewController+Injectable.swift
+++ b/PublicViewController.xctemplate/ViewController+Injectable.swift
@@ -6,19 +6,22 @@ import AppCore
 public final class ___FILEBASENAME___: UIViewController, Instantiatable, Injectable {
 
     // MARK: - Mew.Instantiatable
-    public struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     public typealias Environment = EnvironmentProvider
     public var environment: Environment
 
     // MARK: - Mew.Injectable
-    public func input(_ input: Input) {
-        <#code#>
+    private var input: Input {
+        didSet { updateUI() }
+    }
+    
+    func input(_ input: Input) {
+        self.input = input
     }
 
     public init(with input: Input, environment: Environment) {
         self.environment = environment
+        self.input = input
         super.init(nibName: nil, bundle: Bundle(for: type(of: self)))
     }
 
diff --git a/PublicViewController.xctemplate/ViewController+Interactable.swift b/PublicViewController.xctemplate/ViewController+Interactable.swift
index 84e6867..4c69463 100644
--- a/PublicViewController.xctemplate/ViewController+Interactable.swift
+++ b/PublicViewController.xctemplate/ViewController+Interactable.swift
@@ -6,18 +6,15 @@ import AppCore
 public final class ___FILEBASENAME___: UIViewController, Instantiatable, Interactable {
 
     // MARK: - Mew.Instantiatable
-    public struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     public typealias Environment = EnvironmentProvider
     public var environment: Environment
 
-    // MARK: - Mew.Interactable
-    public struct Output {
-        let <#name#> = <#value#>
-    }
-    public func output(_ handler: ((Output) -> Void)?) {
-        <#code#>
+    // MARK: - Mew.Emittable
+    typealias Output = <#value#>
+    private var handler: ((Output) -> Void)?
+    func output(_ handler: ((Output) -> Void)?) {
+        self.handler = handler
     }
 
     public init(with input: Input, environment: Environment) {
diff --git a/PublicViewController.xctemplate/ViewController.swift b/PublicViewController.xctemplate/ViewController.swift
index 3e6d63b..8fab972 100644
--- a/PublicViewController.xctemplate/ViewController.swift
+++ b/PublicViewController.xctemplate/ViewController.swift
@@ -6,9 +6,7 @@ import AppCore
 public final class ___FILEBASENAME___: UIViewController, Instantiatable {
 
     // MARK: - Mew.Instantiatable
-    public struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     public typealias Environment = EnvironmentProvider
     public var environment: Environment
 
diff --git a/ViewController.xctemplate/ViewController+Injectable+Interactable.swift b/ViewController.xctemplate/ViewController+Injectable+Interactable.swift
index 59d935b..4d73fae 100644
--- a/ViewController.xctemplate/ViewController+Injectable+Interactable.swift
+++ b/ViewController.xctemplate/ViewController+Injectable+Interactable.swift
@@ -6,27 +6,29 @@ import AppCore
 final class ___FILEBASENAME___: UIViewController, Instantiatable, Injectable, Interactable {
 
     // MARK: - Mew.Instantiatable
-    struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     typealias Environment = EnvironmentProvider
     var environment: Environment
 
     // MARK: - Mew.Injectable
+    private var input: Input {
+        didSet { updateUI() }
+    }
+    
     func input(_ input: Input) {
-        <#code#>
+        self.input = input
     }
 
-    // MARK: - Mew.Interactable
-    struct Output {
-        let <#name#> = <#value#>
-    }
+    // MARK: - Mew.Emittable
+    typealias Output = <#value#>
+    private var handler: ((Output) -> Void)?
     func output(_ handler: ((Output) -> Void)?) {
-        <#code#>
+        self.handler = handler
     }
 
     init(with input: Input, environment: Environment) {
         self.environment = environment
+        self.input = input
         super.init(nibName: nil, bundle: Bundle(for: type(of: self)))
     }
 
diff --git a/ViewController.xctemplate/ViewController+Injectable.swift b/ViewController.xctemplate/ViewController+Injectable.swift
index 5918c34..15ba957 100644
--- a/ViewController.xctemplate/ViewController+Injectable.swift
+++ b/ViewController.xctemplate/ViewController+Injectable.swift
@@ -6,19 +6,22 @@ import AppCore
 final class ___FILEBASENAME___: UIViewController, Instantiatable, Injectable {
 
     // MARK: - Mew.Instantiatable
-    struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     typealias Environment = EnvironmentProvider
     var environment: Environment
 
     // MARK: - Mew.Injectable
+    private var input: Input {
+        didSet { updateUI() }
+    }
+    
     func input(_ input: Input) {
-        <#code#>
+        self.input = input
     }
 
     init(with input: Input, environment: Environment) {
         self.environment = environment
+        self.input = input
         super.init(nibName: nil, bundle: Bundle(for: type(of: self)))
     }
 
diff --git a/ViewController.xctemplate/ViewController+Interactable.swift b/ViewController.xctemplate/ViewController+Interactable.swift
index 7e3fa94..854d1eb 100644
--- a/ViewController.xctemplate/ViewController+Interactable.swift
+++ b/ViewController.xctemplate/ViewController+Interactable.swift
@@ -6,18 +6,15 @@ import AppCore
 final class ___FILEBASENAME___: UIViewController, Instantiatable, Interactable {
 
     // MARK: - Mew.Instantiatable
-    struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     typealias Environment = EnvironmentProvider
     var environment: Environment
 
-    // MARK: - Mew.Interactable
-    struct Output {
-        let <#name#> = <#value#>
-    }
+    // MARK: - Mew.Emittable
+    typealias Output = <#value#>
+    private var handler: ((Output) -> Void)?
     func output(_ handler: ((Output) -> Void)?) {
-        <#code#>
+        self.handler = handler
     }
 
     init(with input: Input, environment: Environment) {
diff --git a/ViewController.xctemplate/ViewController.swift b/ViewController.xctemplate/ViewController.swift
index 5565298..dd1b73f 100644
--- a/ViewController.xctemplate/ViewController.swift
+++ b/ViewController.xctemplate/ViewController.swift
@@ -6,9 +6,7 @@ import AppCore
 final class ___FILEBASENAME___: UIViewController, Instantiatable {
 
     // MARK: - Mew.Instantiatable
-    struct Input {
-        let <#name#> = <#value#>
-    }
+    typealias Input = <#value#>
     typealias Environment = EnvironmentProvider
     var environment: Environment