Yes you can create a package and upload it directly from the Lianja Admin Console. This uses http/https so no sftp is required on the server.

The package will automatically install if the environment variable DB_WWWAUTOUPDATE=ON is set.

Alternatively you can "Install" from the Lianja Admin Console.

When a package is installed the cloud server prevents any requests being served until the package installation has completed.

If the package contains upgrade.prg or setup.prg then database schema updates can be donw inside that file.

The installation of the package is done without affecting the system operation.