Customizing self hosted version with custom libraries

[schaithanya]

I have deployed the build (war) in Tomcat server, and I want to add new custom libraries to my self-hosted app. I see the following approaches:

1. clibs with the URL of an XML file; this requires XML to be placed for public access (so ruled out).

2. Editing Preconfig.js is not reflecting in the application. I assume we need to rebuild the complete application.

Can you please suggest some approaches to load custom libraries by default by changing configurations without rebuilding?

An example or developer documentation would be really helpful.