I am attempting to deploy a Node app on the App Platform (the jQuery UI download builder at https://github.com/jquery/download.jqueryui.com).

The app requires a system library to be installed, xsltproc. I’ve attempted adding sudo apt install xsltproc as a build command, though it fails for lack of privileges.

My goal is to keep the environment as minimal and standard as possible, to reduce ongoing maintenance. Is there a correct way to do this?

Thanks!