In the /app directory, set up an encrypted Borg backup repository, configure borgmatic, and back up the data…

In the /app directory, set up an encrypted Borg backup repository, configure borgmatic, and back up the data…: a task in rts-1k-rootless-apptainer: RTS-1K: offline rootless Apptainer release (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.