@Delta update: the delta app deleted everyone's boarding passes because it's been... 12 hours? Or maybe because many of us got standby tickets for a different flight just in case. Anyway. I have many complaints.
Update to @Delta saga, the gate agent just brought out a giant thing of snacks and told us our pilot and crew are on the way and will be landing at 11:22pm and they are on the way. Cheers from everyone.