Build a private Midnight d

Short summary

Complete tutorial on building a privacy-focused blockchain dApp using Midnight's Compact smart contract language, TypeScript witnesses, and React UI. Demonstrates full-stack patterns: public on-chain state managed by the contract, private inputs handled by witness layer, and off-chain metadata for context. Includes working monorepo with CI/CD and addresses realistic challenges like compiler-runtime version alignment.

• •Full-stack implementation of a private signal board covering contract compilation, witness logic, backend API, and React UI
• •Architectural principle: separate concerns between on-chain public state, off-chain private logic, and human-readable metadata
• •Production-ready patterns including GitHub Actions CI, version management, and testable monorepo structure

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