Greetings from Indio! Jk, I'm not at Coachella. Fuck Coachella. (If you're going, though, have fun and wear sunscreen.) This weekend visitors to the desert can expect a headline set from Childish Gambino, and a new film from Childish Gambino, and free sneakers (?) from Childish Gambino. Gambinochella will also host a rare stateside Aphex…