mac-setup https://www.youtube.com/watch?v=EgMfFaLj0rE&list=UUGHCIkfEHaKT7zsq8wzqeOQ&index=3 https://www.youtube.com/watch?v=9tEvq-QJFlE&list=UUGHCIkfEHaKT7zsq8wzqeOQ&index=7 https://www.youtube.com/watch?v=eL6huJLKvLc&list=UUGHCIkfEHaKT7zsq8wzqeOQ&index=22