Geoff DiMasi is a principal of P’unk Ave, a web design firm based in South Philadelphia, a partner of Independents Hall, a coworking facility based in Old City, and an Assistant Professor at the University of the Arts. P’unk Avenue, which works with local clients like the University of Pennsylvania, is a developer of Apostrophe, an open-source, versatitle WYSISYG content management system. At UArts, DiMasi teaches design.