An AppleScript to automatically make a backup of your Bookpedia library: https://www.bruji.com/bookpedia/. The backup is stored in your home folder, in a "Bookpedia_automated_backups" directory.
I have not tested with the other *pedia products, but it might work with those as well. If not, open a ticket and/or submit a pull request.
Note that this script uses semantic versioning and v2.x has been tested on macOS High Sierra and Bookpedia v5.6. If you need to run on older systems, please try v1.x.