How the sync works

Click Open deck: the slides open in their own window. In Teams or Zoom choose Share window and pick only the slides window; keep this script on your side. On one monitor, place the two windows side by side so the slides are never fully covered. Arrows, PageUp/PageDown, space or a clicker move both pages, in whichever window has focus. If pop-ups are blocked, allow them for this site and click again.