To run locally:

• Open terminal
• cd into repo
• Run npx serve .
• View in browser at http://localhost:3000

To test gyroscope locally:

• Keep npx serve . in a terminal window, and open a new window
• Run ngrok http localhost:3000
• Under "Forwarding" section of interface, there will be a URL ending in ngrok-free.app
• Open that URL on your mobile device's browser