Manage cronjobs within the manager.
With the CronManager you're able to create cronjobs within the manager. When the right script is added to your cronjobs list you could manage snippets as cronjob scripts. It can run every minute and you could pass properties or propertysets to your snippet in the cronjob.
MODX Package Management
Install via package manager and create the cronjobs in the custom manager page.
For more information please read the documentation.
The project is licensed under the GPLv2 license.
Translations of the package can be made for the Default Lexicon and the System Setting Lexicon