no sign-up scheduler 3

https://sierra-wiki.win/index.php/Why_%22No_Registration_Required%22_Is_the_Future_of_Group_Scheduling_Tools

A no sign-up scheduler is refreshingly simple—you just open it and book your time. No accounts, no newsletters, just a clean interface that lets you set a meeting slot and share a link. It’s perfect for one-off plans or when you don’t want another app cluttering your inbox. The focus stays on the appointment, not on extra steps that slow you down.