Arrival at the Reception: Have the wedding party enter the reception area to upbeat, electronic music, like a "system launch" for the event.
Wedding Toasts: Best Man and Maid of Honor give speeches using fun tech metaphors (e.g., "May your marriage never experience any lag or glitches").
Tech-Themed Games: Include interactive games that the wedding party can help lead, like a quiz about your love story (complete with fun coding terms).