Compatible only with QGIS >= 3.14, because it uses the temporal controller.
You can either:
-
Open the QGIS Project included in the GPKG:
Project -> Open From... -> Geopackage -
Or launch the Python script to regenerate layers within QGIS itself from the console:
exec(open('/home/etienne/dev/other/qgis-roadmap/main.py'.encode('utf-8')).read())