UCallista ungumphathi wokuhlaziywa kwezimali eColorado Access. Uhlale e-Colorado kusukela ngo-2009 futhi uchitha isikhathi sakhe esiningi engaphandle komsebenzi nomyeni wakhe nezingane ezimbili, ukuhamba ngezinyawo, ukuhamba ngebhayisikili, nokudlala i-violin ku-Denver Philharmonic Orchestra. Ungomunye walabo “bantu basePeloton abacasulayo,” futhi uthanda amaphrojekthi wezandla njengokunitha nokuphambana.