Setting a Custom Location for the Shortcuts Configuration File on macOS
By default, shortcuts.conf should be located in Harmony's etc subfolder, which can only be modified by users with administrator privileges. However, it is possible to specify a for shortcuts.conf in the USADB_CONFIG_FILE environment variable.
As a result, a user can place a shortcuts.conf file in their Documents folder and make Harmony read it, without requiring administrator privileges. Likewise, an administrator can place the shortcuts.conf file in a specific location that can be edited by any user, and set the environment variable to point to this file for all users.