diff --git a/Sources/NSUI/ViewControllerRepresentable.swift b/Sources/NSUI/ViewControllerRepresentable.swift
index 4e33a42..b172cbf 100644
--- a/Sources/NSUI/ViewControllerRepresentable.swift
+++ b/Sources/NSUI/ViewControllerRepresentable.swift
@@ -9,6 +9,13 @@ public protocol NSUIViewControllerRepresentable: NSViewControllerRepresentable {
 
 	@MainActor
 	func updateNSUIViewController(_ viewController: Self.NSUIViewControllerType, context: Self.Context)
+
+	@MainActor
+	static func dismantleNSUIViewController(_ viewController: Self.NSUIViewControllerType, coordinator: Self.Coordinator)
+
+	@available(macOS 13.0, *)
+	@MainActor
+	func sizeThatFits(_ proposal: ProposedViewSize, nsUIViewController: Self.NSUIViewControllerType, context: Self.Context) -> CGSize?
 }
 
 public extension NSUIViewControllerRepresentable {
@@ -21,7 +28,20 @@ public extension NSUIViewControllerRepresentable {
 	func updateNSViewController(_ viewController: Self.NSUIViewControllerType, context: Self.Context) {
 		updateNSUIViewController(viewController, context: context)
 	}
+
+	@MainActor
+	static func dismantleNSViewController(_ viewController: Self.NSUIViewControllerType, coordinator: Self.Coordinator) {
+		Self.dismantleNSUIViewController(viewController, coordinator: coordinator)
+	}
+
+	@available(macOS 13.0, *)
+	@MainActor
+	func sizeThatFits(_ proposal: ProposedViewSize, nsViewController: Self.NSUIViewControllerType, context: Self.Context) -> CGSize? {
+		sizeThatFits(proposal, nsUIViewController: nsViewController, context: context)
+	}
+
 }
+
 #elseif canImport(UIKit)
 public protocol NSUIViewControllerRepresentable: UIViewControllerRepresentable {
 	associatedtype NSUIViewControllerType: NSUIViewController
@@ -31,6 +51,13 @@ public protocol NSUIViewControllerRepresentable: UIViewControllerRepresentable {
 
 	@MainActor
 	func updateNSUIViewController(_ viewController: Self.NSUIViewControllerType, context: Self.Context)
+
+	@MainActor
+	static func dismantleNSUIViewController(_ viewController: Self.NSUIViewControllerType, coordinator: Self.Coordinator)
+
+	@available(iOS 16.0, tvOS 16.0, *)
+	@MainActor
+	func sizeThatFits(_ proposal: ProposedViewSize, nsUIViewController: Self.NSUIViewControllerType, context: Self.Context) -> CGSize?
 }
 
 public extension NSUIViewControllerRepresentable {
@@ -43,6 +70,31 @@ public extension NSUIViewControllerRepresentable {
 	func updateUIViewController(_ viewController: Self.NSUIViewControllerType, context: Self.Context) {
 		updateNSUIViewController(viewController, context: context)
 	}
+
+	@MainActor
+	static func dismantleUIViewController(_ viewController: Self.NSUIViewControllerType, coordinator: Self.Coordinator) {
+		Self.dismantleNSUIViewController(viewController, coordinator: coordinator)
+	}
+
+	@MainActor
+	func sizeThatFits(
+		_ proposal: ProposedViewSize,
+		uiViewController: Self.NSUIViewControllerType,
+		context: Self.Context
+	) -> CGSize? {
+		sizeThatFits(proposal, nsUIViewController: uiViewController, context: context)
+	}
 }
 #endif
 
+extension NSUIViewControllerRepresentable {
+	@MainActor
+	static func dismantleNSUIViewController(_ viewController: Self.NSUIViewControllerType, coordinator: Self.Coordinator) {
+	}
+
+	@available(iOS 16.0, tvOS 16.0, macOS 13.0, *)
+	@MainActor
+	func sizeThatFits(_ proposal: ProposedViewSize, nsUIViewController: Self.NSUIViewControllerType, context: Self.Context) -> CGSize? {
+		nil
+	}
+}
diff --git a/Tests/NSUITests/ViewControllerRepresentableTests.swift b/Tests/NSUITests/ViewControllerRepresentableTests.swift
new file mode 100644
index 0000000..c1f566a
--- /dev/null
+++ b/Tests/NSUITests/ViewControllerRepresentableTests.swift
@@ -0,0 +1,28 @@
+import XCTest
+@testable import NSUI
+
+@MainActor
+struct RepresentedViewController: NSUIViewControllerRepresentable {
+	typealias NSUIViewControllerType = NSUIViewController
+
+	func makeNSUIViewController(context: Context) -> NSUIViewControllerType {
+		NSUIViewControllerType(nibName: nil, bundle: nil)
+	}
+
+	func updateNSUIViewController(_ viewController: NSUIViewControllerType, context: Context) {
+	}
+
+	final class Coordinator {}
+
+	func makeCoordinator() -> Coordinator {
+		Coordinator()
+	}
+}
+
+final class ViewControllerRepresentableTests: XCTestCase {
+	@MainActor
+	func testViewStructDefinition() throws {
+		let _ = RepresentedViewController()
+	}
+}
+