/// Parses `--route "<NDI name>=<screen index>"` launch arguments (for scripted tests until scenes exist).
public enum RouteArgument {
    public struct Parsed: Equatable, Sendable {
        public var ndiName: String
        public var screenIndex: Int
    }

    public static func parse(_ arguments: [String]) -> [Parsed] {
        zip(arguments, arguments.dropFirst()).compactMap { flag, value in
            guard flag == "--route", let separator = value.lastIndex(of: "=") else { return nil }
            let name = String(value[..<separator])
            guard !name.isEmpty, let index = Int(value[value.index(after: separator)...]), index >= 0 else { return nil }
            return Parsed(ndiName: name, screenIndex: index)
        }
    }
}