Anything you like for making appointments?

Hello all,

I’m trying to have users make appointments by clicking on a basic
weekly view on a calendar … and am afraid to reinvent to wheel…but
can’t seem to find anything available yet…

I can find pretty decent google calendar integration such as

I can also find calendar helpers for display such as

or GitHub - topfunky/calendar_helper: Calendar-generating plugin for Ruby

thanks for your help