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- Deliver the Bitcoin derivatives practice app and developer starter as a versioned MIT source package with checksums and an exact source manifest.
- Apply available dependency updates and adapt local database tests and development commands to the current runtime.
- Preserve practice balances when a browser storage write fails, show a clear recovery message, and allow a retry when storage becomes available.
- Add guarded local setup, explicit fresh-database browser workflows, native WebMCP verification, source consumer checks and Linux/Windows release gates.
- Preserve existing wallet derivation, storage namespaces, SQL migrations, protocol harnesses and historical verification evidence.
Download the source ZIP, manifest and SHA256SUMS. Verify the checksums before extracting into a new directory. Node.js 24.19.0 or newer within 24.x and npm 12.2.0 are required. The source includes the MIT license, locked dependencies and both preserved SQL migrations. This v1 is a Bitcoin derivatives practice app and developer starter. The public Sites deployment is maintained separately. No LLM or provider API key is needed for practice.