The following dependencies of the real-time editing are licensed as AGPL:

• https://github.com/cryptpad/chainpad (packaged as a WebJar by https://github.com/xwiki-contrib/chainpad-webjar/)
• https://github.com/cryptpad/chainpad-netflux (packaged as a WebJar by https://github.com/xwiki-contrib/chainpad-netflux-webjar)
• https://github.com/cryptpad/hyperjson (packaged as a WebJar automatically by https://www.webjars.org/ into https://central.sonatype.com/artifact/org.webjars.npm/hyper-json)

My understanding that AGPL license is not compatible with XWiki's LGPL license.