This is an Alloverse app. You can read about Alloverse app on Alloverse's website.
This example app displays some assets in your place.
Application sources are in lua/.
To start the app and connect it to an Alloplace for testing, run
git submodule update --init --recursive
./allo/assist fetch
./allo/assist run alloplace://nevyn.places.alloverse.com