thexande

import SwiftUI
import PlaygroundSupport

final class Item: Identifiable {
    let color: Color
    let id = UUID()
    var displayDetail: Bool
    init(color: Color, displayDetail: Bool = false) {
        self.color = color
        self.displayDetail = displayDetail

asugai

$ cd ~
$ sudo curl -sS https://getcomposer.org/installer | sudo php
$ sudo mv composer.phar /usr/local/bin/composer
$ sudo ln -s /usr/local/bin/composer /usr/bin/composer

then you can run 
$ sudo composer install