Doesn’t work on iOS, the backup needs to be performed on a computer that can download and save files generated in the browser. We’ll have to identify that limitation on-screen to avoid confusion. The webCoRE servers are uninvolved in the backup and SmartThings platform is only used for fetching the piston data. The file is created and encrypted entirely in your browser, so unlike a normal “download this URL” the download is triggered from local data that exists only in the browser environment.
Backup bin codes are the existing remote backup solution, but public backups are anonymized and private backups are encrypted and only accessible to the webCoRE smart app install that created them.