As a kid growing up in southwest Houston, Stephanie Wittels Wachs transformed her parents’ living room into a performance space. She’d put makeup and costumes on her younger brother, Harris Wittels, directing him in full-scale plays she’d dreamed up. That early passion for the stage led to courses at Houston’s musical theater company TUTS (Theater Under the Stars), followed by a degree from the performing arts high school HSPVA, which is the holy grail of high schools for many creative kids in Houston. Back then, before podcasts were even a thing, Wittels Wachs never could have imagined she’d wind up cofounding Lemonada, an independent podcast network and soon-to-be publishing imprint with Simon & Schuster. Lemonada is home to 61 shows (and counting), hosted by celebrities…