# Younis AI Lab > AI 应用开发、RAG、Agent 与工程化实践笔记 ## Reusable projects - [Project reuse manifest](https://youniszhang.com/project-reuse-manifest.json): Versioned JSON index of projects, commands, inputs, outputs, article relations, and SHA-256 verified public artifacts. - [Project index](https://youniszhang.com/projects/): Human-readable reusable project pages. - [Evidence index](https://youniszhang.com/evidence/): Evidence levels and verification boundaries. The JSON manifest is authoritative for machine discovery. Follow each project's publicUrl, entrypoint.publicUrl, command shellCommand, artifact publicUrl, and article references.