Build self-custody crypto wallet app + landing site (wallet + swaps + card)

Overview: We're building a self-custody crypto neobank app (similar concept to MetaMask Card / Avici). Users hold their own funds (account abstraction + passkeys), can swap crypto in-app, and spend via a card. We never custody funds. Scope: 1. Mobile app (iOS + Android): Self-custody wallet using account abstraction (ERC-4337) + passkey login (no seed-phrase friction) In-app crypto swaps via a DEX aggregator (1inch / 0x) with our own fee built into the swap Card integration via a white-label provider API (we'll provide the provider) KYC flow integration (provider API) for card onboarding Clean, simple UI 2. Landing website: Marketing site (Framer or similar), modern fintech look, App Store / Google Play links Note: A QR-based payment integration is planned for a later phase — please architect the app in a modular way so this can be added without a rebuild. Requirements: Proven experience with crypto wallets, account abstraction, and Web3 (show past work) Strong security practices — this handles user funds Experience integrating payment/card APIs a big plus To apply: Share 2–3 relevant projects (wallets / Web3 apps) Rough timeline + cost estimate for an MVP Confirm experience with account abstraction specifically (name the infra you'd use — Safe, Biconomy, etc.)