Possible this is a duplicate. Looked for a place to search existing feature requests - this didn't jump out at me.
A tool to schedule script execution..
on boot
periodically (hourly, daily, weekly, etc.)
Would open a wide range of possibilities.
For example; I'm using a poweredge server - and would love to run this fan control script:
https://github.com/White-Raven/PowerEdge-shutup/blob/main/fancontrol.sh
I'm sure many others would use it for rsync, etc.
For reference: the "User Scripts" plugin on Unraid.