Is there any plugin or built-in Calibre way to have multiple backup copies of metadata.db like this is done in Zotero for example (the folder would contain metadata.db, metadata.db.bak, metadata.db.bak1 ...)
I could create cron job on my computer but maybe there is less hacky way?
I try to sync my Calibre over 2 computers, the metadata.db was overwritten unfortunately
