danmcguire It is possible, with the GeoGebra plugin (that you have to install on the MoodleBox). Unfortunately, the plugin seems to be stale at Moodle 3.6.10 🤨
See this HOWTO post I just wrote now.
Other Geogebra plugins do not work. They do NOT give the possibility to select a local GeoGebra codebase to be able to use GeoGebra offline (see this official GeoGebra doc).
Edit: I just tested the plugin with my latest version, and can confirm it works OK as of January 14, 2024.