During the development of contracts for Base, we encountered several notable obstacles and implemented solutions:
1.Network Configuration Management
Initially, the project was configured only for Base Sepolia testnet
Added Base mainnet configuration to hardhat.config.ts, ensuring both testing and production deployments could be managed from the same codebase

2.Token Integration Strategy
For testnet, we deployed a mock USDC token to simulate payments
For mainnet, needed to use the actual USDC contract (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
Created separate deployment scripts to handle these different approaches

3.Deployment Workflow Optimization

• Simplified deployment process by creating npm scripts (deploy:sepolia, deploy:mainnet)
• Added proper error handling and verification steps to deployment scripts
• Configured transaction confirmation waits (5 blocks) before verification

4.Contract Verification

• Set up customChains configuration for Base networks in Hardhat
• Implemented proper contract verification with constructor arguments
• Created detailed error reporting for verification failures

5.Fee Management

• Implemented a 10% system fee (1000 basis points) with the remaining 90% to content creators
• Ensured the fee distribution mechanism was gas-efficient and secure

6.Environment Variable Management
Structured environment configuration for multiple networks
Set sensible defaults for RPC URLs while allowing for custom endpoints

These challenges were addressed through careful planning, proper code organization, and thorough documentation in the README to ensure the deployment process would be smooth for both testnet and mainnet environments.