Winner's Dev Notes

Find the SHA-1 and SHA-256 fingerprints of your production app signing certificate in Google Play Console under App integrity and Play app signing.

Generate a CSR, create an iOS development certificate and App ID in Apple Developer, register a test device, and build a matching provisioning profile.

Connect an iPhone to a Mac, reveal and copy its UDID in Finder, and use the identifier to register the device for iOS development and testing.

Understand why Xcode copies shared cache symbols from an iPhone, why the first transfer takes time, and what to check when device preparation appears stuck.

Create a circular Sprite mask in Cocos Creator 3.7.2 with a custom effect, material and fragment shader that clips pixels outside a UV-space radius.

Remotely debug an iPhone Safari page from a Mac by enabling Web Inspector, connecting the device, opening Safari's Develop menu, selecting a tab, and using console and network tools.

Detect iPhones and modern iPads that report MacIntel by combining user-agent, navigator.platform, and maxTouchPoints checks in frontend code.

Check an Android APK for 16 KB page-size support by locating native .so files and verifying their ELF LOAD segment alignment with readelf.

Analyze Cocos Creator Web Mobile resource loading with Chrome Network and the Performance API to compare file size, waiting time, download duration, and slow assets.

Use TronLink, test TRX, and TRONSCAN to compile, deploy, register, add, and verify a TRC-20 token contract on the TRON Nile testnet.