Onboarding: https://docs.opengameprotocol.com/build-on-og/game-developer-onboarding
npm install @ogp/game-sdkOnboarding: https://docs.opengameprotocol.com/build-on-og/game-developer-onboarding
API Reference: https://docs.opengameprotocol.com/build-on-og/open-game-sdk