Set repeating tasks
Unfortunately, setting repeating tasks is currently not possible due to some Google Tasks API limitations.
We will support these features as soon as Google makes them available for developers.
You can star this issue on their API issue tracker here https://issuetracker.google.com/issues/166896024 to speed up the process.
Please note that deleting a task that has upcoming recurrences from TasksBoard will not delete the upcoming recurrences. You will have to delete this task from another Google Tasks client such as the mobile app or the sidebar on Gmail or Google Calendar.