My collection of Google's App Script scripts
colorBasedOnAttendees.gs: colors each calendar event based on who is in the meeting, or what it is for.blockFromPersonalCalendar.gs: takes events from a calendar (pressumably personal), and blocks the times in which there are events in another one (pressumably professional)clearPastBlocks.gs: looks at past events that are named in specific ways (see, for exampleblockFromPersonalCalendar.gs), and deletes them
The configurations for the files should live in colorAttendeeConfig.gs and getPersonalCalendar.gs (of which there are example files included). Of note, the configs should be defined before the other scripts in the App Script project - you can prepend an a in front of the file name and then sort the files alphabetically and they'll work.