Building a synthesiser is a lot of work. It seems pretty safe to assume, but if you had any doubts, just watch this one come together from scratch like the behemoth of circuit boards it is.
Synth-creator themonkeybars timelapsed the entire build process using app on his iPhone that took one shot every five seconds to create a whopping 43 minutes of jittery synth-making craziness. If you do the maths, you'll find that's something like 46,000 frames and 64 hours of work. It's also 43 minutes of synth music, created by the same dial-adorned musical slab you see coming to life before your very eyes.