Adding relative recurring tasks to taskwarrior: they can wait until some time after they have last been completed and they can be due some time after they have last been completed.

Example here:

# You shouldn't mow your lawn more than once a week, but want to keep it short, so shouldn't wait for more than two weeks:

task add 'Mow the Lawn' relativeRecurWait:1weeks relativeRecurDue:2weeks

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