
Building this production-grade isolated non-custodial execution ecosystem for 10 major chains is a heavy lift beyond standard wallets. Realistic estimates (serious team, no corners cut): - Timeline: 18-24 months to v1 launch - Team size: 12-18 (crypto/mobile security engineers, policy/risk specialists, chain adapters, QA, designers) - One-time build budget: $2.5M–$4.5M (heavy on audits & hardening) - Security audits: $400k–$700k Hardest parts: on-device risk engine accuracy, typed intent + policy layer, serverless recovery, and maintaining strict non-custodial invariants at scale. Feasible but expensive. Prioritize core vault + 3-4 chains first for faster iteration.





















