NixOS/nixpkgs — pull request #4353 by rickynils (2014-10-01 15:26:46+00:00)
Title: nixos: Add option services.cron.cronFiles

This allows you to configure extra files that should be appended to your crontab. Implemented by writing to /etc/crontab when the cron service starts. Would be nicer to use a cron that supports /etc/cron.d but that would require us to patch vixie-cron.