040000 tree cdddbb5ef485a64c007c1787f930d3b43a97d875	hello-world
040000 tree b4354d4c63a57e6f54fa2814552e1683eeff84e4	multiplatform
040000 tree 300adb4e7b26c0b207943716fca1294e5a7c4a09	playground