Other webapps in Ignition's Tomcat

Does inductive automation have any guidance on adding web applications to Ignition’s Tomcat instance? Are others doing this? I know I can run multiple instances of Tomcat, but let’s say I’m limiting myself to one, and I want to run some existing webapps after I install Ignition.

No guidance, and nobody else is doing it as far as I know. You’re in uncharted territory if you’re planning on doing this.