“If everything turns to shit, I’m gonna go run errands for Pamela Shamshiri,” joked Troye Sivan during his Miami Art Basel performance, referring to the interior design all-star whom he collaborated with on staging. It’s fitting, considering Sivan spent his lockdown living in Australia and renovating his Victorian-era Melbourne home alongside David Flack. (Reading nooks! apple tree centerpieces! the “most comfortable couch in the world!”) For Architectural Digest‘s AD100 launch, the Aussie pop star was asked to work with Shamshiri and Lenovo Yoga to call upon fan submissions to bring his Art Basel installation to life. They sent in ideas for four categories — “Paradise on Earth,” “Technology and Progress,”…