For KubeCon + CloudNativeCon, we use sched.com for scheduling and ask people to select their talks ahead of time. Then, we can move talks between rooms based on

For KubeCon + CloudNativeCon, we use sched.com for scheduling and ask people to select their talks ahead of time. Then, we can move talks between rooms based on interest. Of course, this assumes that the people who select their interest ahead of time are somewhat representative of all attendees.