When it comes to showing off your pictures and videos, nothing beats a great slideshow. Seeing your digital memories overtake your entire screen, set in motion through smooth animations and transitions, complete with background music, is a uniquely personal cinematic experience. Happily, the Photos application makes creating slideshows a snap both on your Mac and on your iOS devices. We’re not talking slideshow projects, wherein you spend hours crafting every single slide, oh heck no.