"Ordinary rsync does not understand SQLite transactions. Rsync will make a copy of ORIGIN into REPLICA, however the copy might not be consistent. Parts of the copy might be from one transaction, while other parts might be from a different transaction. The database copy might be corrupt."
https://sqlite.org/rsync.html
... and is installed and available:
"Ordinary rsync does not understand SQLite transactions. Rsync will make a copy of ORIGIN into REPLICA, however the copy might not be consistent. Parts of the copy might be from one transaction, while other parts might be from a different transaction. The database copy might be corrupt."