This is a reference monorepo containing four runnable TypeScript example applications that demonstrate integration with the Unicity Sphere wallet through the @unicitylabs/sphere-sdk Connect protocol. It is explicitly educational rather than a product: all packages are marked private and each example is self-contained so it can be copy-pasted into a new project. The browser app is a React 19 + Vite dApp that connects to a user's wallet over iframe/popup transports; the nodejs app is a CLI dApp over WebSocket against a mock wallet server; the bot is the inverse shape, acting as its own wallet via wallet-api custody and listening for payment events; and backend-auth uses a sign-message challenge so an Express server can recover the user's chain pubkey and issue a JWT. All packages pin the same exact SDK version (0.18.0) and share modern tooling: Vite, Vitest, React Testing Library, Tailwind, and strict TypeScript. Architecturally, the repo is not a single application but a set of deliberately duplicated example packages, each exercising the same protocol from a different integration angle. The most valuable parts are the core client-side lifecycle implementation (useWalletConnect), robust error classification that is code-based rather than message-regex-based, money-safety patterns around INTENT_OUTCOME_UNKNOWN (4201) and possibly-committed send outcomes, exact BigInt-safe token conversion utilities, and byte-identical challenge construction for cryptographic pubkey recovery. The test suites are unusually strong for an example repo, acting as canaries that pin SDK wire contracts and wallet behavior: lock gate, send safety, NFT intent codecs, mock transport, and comprehensive React component tests. Maintenance is active and disciplined: CI runs vitest and tsc across all packages, deploy builds and publishes the browser example to GitHub Pages, and the code comments reflect recent empirical observations about CDN/WAF behavior and SDK version floors. Technical drift is low relative to the ecosystem because the repo tracks recent major releases (React 19, Vite 7, vitest 4, Tailwind 4), though the dependence on an exact pinned SDK version and hand-maintained protocol mirrors means the repo requires coordinated updates to stay correct. Caveats: the deprecated extension-transport path is intentionally kept as dead reference code, and several files deliberately duplicate error-copy and formatting logic across packages rather than sharing it. This is by design for copy-paste portability, but it means fixes must be propagated manually. Overall, this repo is a high-quality reference for anyone building Sphere Connect integrations, and several of its modules are genuinely reusable as standalone utilities.