Expected Behavior

Option to Sync (on changes) from another external file.

Would be nice if with the current database Autoreload and database Merge we should implement an option on KeePassXC to watch on an external source (a file placed on another drive/folder) and when there are changes on that file, merge with the current opened database.

This can be useful with Cloud/Sync client like Dropbox, GDrive, WebDav, so one can listen on an external file and KeePassXC will continuously merge the changes from that file.

This is related to #22