- Implement onCrossChainCall functionality - Compatible with all chains connected to ZetaChain (Ethereum, Polygon, BSC, and Bitcoin) - Use ZRC-20 - Implement custom logic (not tutorials or simple examples)
- Implement onCrossChainCall functionality - Compatible with Bitcoin (compatibility with Ethereum, Polygon, and BSC is a plus) - Provide useful functionality for Bitcoin users - Let users deposit and withdraw BTC - Use ZRC-20 - Implement custom logic (not tutorials or simple examples)
- Use ZetaChain's Connector API to send messages - Implement onZetaMessage and onZetaRevert to handle messages - Compatible with all connected chains (Ethereum, Polygon, BSC) - Deploy to ZetaChain testnet - Implement custom logic (not tutorials or simple examples)