Ask HN: Is there a need for a simple wiki as JAR dependency?

For a client project of mine one requirement is to provide some sort of always up-to-date in-app documentation. The application is a Java-based web app. The obvious solution is to use a wiki for that. For various reasons using a dedicated wiki such as Confluence is not an option. So, my idea was to use a simple JAR dependency that provides a (very simple) in-app wiki. Unfortunately, no such solution seems to exist. All the existing solutions such as XWiki need to be run as a standalone applications. I thought that maybe I'm not the only one with this problem so it might be a good idea to start working on an open source solution. So, would any of you need a simple wiki as a dependency or can you imagine customers or use cases this might be interesting for?