was watching other speedrunners to prepare for my first runs, and every run seems to have around 4,000 gems by Ryptos battle. I know moneybags takes 200 gems in Dojo, but other than that do you need the gems for anything else?

I haven't done a run yet but I imagine Ripto Opens at a specific percentage and the gems help you reach that percentage.. that's just a guess though might want to wait for an official answer haha.

ripto opens at 70%, which in the current route you get from 4,400 gems (shows as 4,200 after Moneybags) and 71 dragonflies