Swift `UserDefaults` Persist Property Wrapper with `App Groups` support

Persist.swift

import Foundation

enum UserDefaultsGroup: String {
    case standard
    case shared = "group.com.your.AppGroupName" // For sharing among App Groups
}

@propertyWrapper
struct Persist<T: Codable> {
    struct Wrapper<T>: Codable where T: Codable {
        let wrapped: T
    }

    private let userDefaults: UserDefaults
    private let key: String
    private let group: UserDefaultsGroup
    private let defaultValue: T

    init(key: String, defaultValue: T, group: UserDefaultsGroup = .standard) {
        self.key = key
        self.defaultValue = defaultValue
        self.group = group

        switch group {
        case .standard:
            userDefaults = .standard
        case .shared:
            userDefaults = UserDefaults(suiteName: group.rawValue) ?? .standard
        }
    }

    var wrappedValue: T {
        get {
            guard let data = userDefaults.object(forKey: key) as? Data else { return defaultValue }
            let value = try? JSONDecoder().decode(Wrapper<T>.self, from: data)
            return value?.wrapped ?? defaultValue
        }
        set {
            do {
                let data = try JSONEncoder().encode(Wrapper(wrapped: newValue))
                userDefaults.set(data, forKey: key)
            } catch {
                // TOOD: You should handle this error how you see fit.
                print(error)
            }
        }
    }
}

UserDefaultsStack.swift

import Foundation

final class UserDefaultsStack {
    @Persist(key: "didFinishTutorial", defaultValue: false)
    var didFinishTutorial: Bool
    
    @Persist(key: "sharedSecretKey", defaultValue: nil, group: .shared)
    var sharedSecretKey: String
}