Thanks to all that attended my Alteryx Inspire 2019 presentation on extracting from Mongo DB for Gallery Usage metrics. The module and apps referenced in the session are now available on the public gallery (gallery.alteryx.com). Just search for "barone", and you'll find "GalleryAppsRun", "MongoPull", and "UserApp":
Thanks - glad you liked the presentation. Coincidentally enough, I gave a tip & trick on this exact thing during the ACEs Got Talent session at Inspire!
If you right click on the module, and open it with your favorite text editor (notepad, notepad++, etc.), you'll see second line of code says:
Just change the 2018.3 to 11.5. Then save and close it, and it will then open fine in your 11.5 version.