Hey, just doing some thinking and wondering how we're going to write the crontab files. They're stored in /var/spool/cron which is, by default, only readable/writeable by root. So, we're either going to have to do it through pam or sudo or something.
Also, the files themselves insist that you shouldn't write to them directly, saying that you must edit the master first. This is normally done by crontab -e, writing out the file, and then when it is saved, it is installed automagically. How do we do that?