# OpenHarmony DocumentationThis repository stores a complete range of OpenHarmony documentation. The content outline is as follows:- OpenHarmony Development -[Device Development](device-dev/Readme.md) -[Application Development](application-dev/Readme-CN.md) -[Release Notes](release-notes/Readme.md) -[Subsystems](./readme)- OpenHarmony Contribution -[How to Contribute](contribute/contribution.md) -[OpenHarmony Part and API Design Reference](./design)