Hi, great crypto developers. My goal is to launch a full-featured, Phantom-style wallet that works seamlessly across Solana, Ethereum, Bitcoin, BNB Smart Chain and additional networks we agree on. It must be available as a browser extension, a mobile app for iOS and Android, and a desktop client, all sharing the same encrypted key store and UI design language. Security is non-negotiable: every platform must enforce multi-factor authentication (TOTP, biometric or OS-level secure enclave where possible) and client-side encryption of seed phrases. Beyond simply sending and receiving, the wallet needs built-in token swapping that can move value between supported chains, plus a staking dashboard so users can delegate or stake assets without leaving the app. Deliverables • Production-ready browser extension (Chromium & Firefox) • iOS and Android builds ready for TestFlight / Google Play internal testing • Desktop installer for macOS, Windows and Linux (Electron or another cross-platform framework) • Source code with clear build scripts and inline documentation • Basic E2E test suite proving account creation, MFA login, swap execution and staking flow • Deployment & publishing guide for each platform Acceptance criteria • One seed phrase unlocks accounts on all listed chains • MFA prompt appears on every outbound transaction and seed export • Swap quotes return in ≤5 seconds and execute correctly on testnet and mainnet • Staking screen displays live APY and confirms delegation on-chain • UI parity across extension, mobile and desktop within a 5 px tolerance I will provide brand assets and the target chain list; you handle architecture, coding, and packaging. If parts of the stack (e.g., React, Flutter, Electron, Rust, or Node with web-extension APIs) are your specialty, note that in your proposal so we can align quickly on the technical approach.