ohmycron VS QuartzNet

> # avoidng collisions with other rsync processes

Use https://github.com/instacart/ohmycron

> MONTHROTATE=monthrotate # use DD instead of YYMMDD

Use https://rotate-backups.readthedocs.io/en/latest/readme.html

> $RSYNC -avR "$SOURCE" "${RSYNCCONF[@]}"

Just create a one-line script with the hardcoded rsync command you want to use and replace the directory to sync as a command-line argument, e.g.

  #!/bin/sh

I would agree with using Job over Queue. Therefore I would recommend looking at Quartz.Net https://www.quartz-scheduler.net/

You can use something like https://www.quartz-scheduler.net/ to create multiple recurring jobs based on the definition you load from a DB.

Or use an existing open source scheduling solution like https://www.quartz-scheduler.net/

If you're interested in using Quartz, you can check out their GitHub repo here: https://github.com/quartznet/quartznet. They also have extensive documentation available on their website: https://www.quartz-scheduler.net/documentation/index.html.

You should use an actual scheduler. https://www.quartz-scheduler.net/

Better to use a framework like Quartz.NET for scheduling background tasks. How it works inside the box I have no idea, but I have used it extensively in my web applications, and those background tasks run 24/7, come hell or high water. It's a good library, and it's easy to use.