synopkg
Package management utility for Synology DiskStation Manager.
TLDR
List the names of installed packages
$ synopkg list --name
List packages which depend on a specific package
$ synopkg list --depend-on [package]
Start/Stop a package
$ sudo synopkg [start|stop] [package]
Print the status of a package
$ synopkg status [package]
Uninstall a package
$ sudo synopkg uninstall [package]
Check if updates are available for a package
$ synopkg checkupdate [package]
Upgrade all packages to the latest version
$ sudo synopkg upgradeall
Install a package from a synopkg file
$ sudo synopkg install [path/to/package.spk]