Equity vs. Cash
Technical co-founder: Costs 15-30% equity (valued at $150K-$3M+ over time). Provides: deep product ownership, recruiting signal, investor confidence, speed of iteration. Best for: deeptech, complex products, or when technology IS the differentiation.
Agency/outsourcing: Costs $100-300K cash for MVP. Provides: faster start, no equity dilution. Risks: vendor dependency, knowledge loss, lower iteration speed. Best for: market validation of a business-model-first startup.