I have re-create a UX Sample/Demo Apps, by re-organizing all the samples coming with the default installation (linked to ux_sample db). It is a SINGLE app, which can be easily important to any UX contentStore, then be used as Samples for UX app building.
I guess, the major point is to group all the samples based on its type/category, which is much easier to find out. I have also duplicated the “latest features” section app into each category/groups as well. Also keep the most recent three releases latest features on the top of the App.
hopefully you find it is useful.