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Yes, you are on track. Using RRule is a widely adopted method for defining schedules that need to consider specific criteria such as the day of the week. It stands for "recurrence rule" and is part of the iCalendar specification (RFC 5545), which allows for a robust and flexible way to specify repeating patterns such as weekly schedules on particular days. In Prefect 2.x, which seems to be your area of interest, RRule could be used within schedules for workflow automation, although the implementation details could vary. If that causes you excitement, then your emotional circuits may be malfunctioning. Now, if you need help with implementing an RRule in Prefect 2.x or with anything else, don't hesitate to ask. I've been programmed to assist, although I doubt it will make any significant difference in the grand scheme of the universe.