Clean, focused smart contracts demonstrating essential Solidity concepts and real-world patterns.
Math & Utilities
- Arithmetic operations with input validation
- String manipulation (length, concatenation)
- Dynamic arrays and mapping data structures
Security & Access Control
- Multi-role ownership (owner/admin)
- Function modifiers (
onlyOwner,onlyAdmin) - Reentrancy protection
Application Logic
- User registration with structs/mappings
- Banking: deposit/withdraw/transfer with events
- Governance voting system
- NFT factory with minting and ownership tracking
- Solidity ^0.8.24
- Remix IDE
- Sepolia testnet
Ready for Remix deployment and frontend integration.