How do you make the backups of Trilium? (being in a lxc unprivileged)

[9acca9]

HI.
I know how make the backup of trilium and restore. I already did. So, the relevant directory is trilium-data/backups...
Ok.
But, how would you make if it is working in a LXC like the script in this repository?
I mean in a automatic way.

I was thinking in have Kopia running in another LXC (because i have to backup several things) (and i like backup to the cloud and encrypted)
But there is no way to communicate NFS/SMB between unprivileged lxc. At least no with out security risk.

So... do you have an idea about this?
thanks