All video was filmed on Ursa Mini 4.6K (actually filmed in 2K to speed the editing process), and edited in Final Cut Pro X. The VFX shots were planned out to fit into a simple compositing process; e.g. the "Northern lights" shot was a clean plate in a park, sky keyed out and Northern Lights added, then several layers of light rays with the character masked out. Similar process for "Space" and "Underwater" shots!
Audio was recorded on a Rode VideoMic Pro, and actually recorded at home! Watch the BTS for the setup!