Act as a seasoned blockchain developer with 5+ years of experience in decentralized finance (DeFi). Provide a step-by-step guide on how to start a DeFi project, covering key aspects such as [IDEAS/INNOVATION], [TECHNICAL REQUIREMENTS], and [MARKETING STRATEGIES]. Begin by explaining how to identify a unique value proposition in the crowded DeFi space, then detail the technical stack needed (e.g., smart contracts, blockchain platform, security audits). Finally, outline a go-to-market strategy, including community building, tokenomics, and partnerships. Tailor your advice for [AUDIENCE LEVEL: beginners/intermediate/experts] and emphasize common pitfalls to avoid, such as [SECURITY RISKS] or [REGULATORY CHALLENGES].