Hi, the blog post you've linked https://guix.gnu.org/en/blog/2017/running-system-services-in-containers/ seems to neither contain mentions of XDG_CONFIG_DIR, nor mcron.
Did you mean https://guix.gnu.org/en/blog/2020/gnu-shepherd-user-services/ instead? FWIW, $XDG_CONFIG_DIR should be $XDG_CONFIG_HOME, I myself always mix those up as well. As far as mcron integration is concerned, it doesn't look as though this has been done yet and I think work remains to be done to have mcron running "as a part of shepherd" rather than as its own daemon. You can right now already run regular cron-jobs through mcron just how people did before systemd was a thing. You just need to make sure you launch mcron as a user service if you want to go with this particular configuration style, otherwise mcron as a system service ought to suffice as well. Regards, Leo
