# Device - [Device Development Overview](device-dev-guide.md) - Learn About OpenHarmony - [OpenHarmony Project](../OpenHarmony-Overview.md) - [Glossary](../glossary.md) - [Release Notes](../release-notes/Readme.md) - Quick Start - [Mini and Small Systems](quick-start/quickstart-lite.md) - [Standard System](quick-start/quickstart-standard.md) - Compatibility and Security - [Privacy and Security](security/Readme-EN.md) - Porting - [Third-Party Library Porting Guide for Mini and Small Systems](porting/porting-thirdparty.md) - [Mini System SoC Porting Guide](porting/porting-minichip.md) - [Mini System SoC Porting Cases](porting/porting-minichip-cases.md) - [Small System SoC Porting Guide](porting/porting-smallchip.md) - [Standard System SoC Porting Guide](porting/standard-system-porting-guide.md) - Subsystem Development - Kernel - [Kernel for the Mini System](kernel/kernel-mini.md) - [Kernel for the Small System](kernel/kernel-small.md) - [Kernel for the Standard System](kernel/kernel-standard.md) - [Driver](driver/Readme-EN.md) - [Compilation and Building](subsystems/subsys-build.md) - [Distributed Remote Startup](subsystems/subsys-remote-start.md) - [Graphics](subsystems/subsys-graphics.md) - [Multimedia](subsystems/subsys-multimedia.md) - [Utils](subsystems/subsys-utils.md) - [AI Framework](subsystems/subsys-aiframework.md) - [Data Management](subsystems/subsys-data.md) - [Sensor](subsystems/subsys-sensor.md) - [USB](subsystems/subsys-usbservice.md) - [Application Framework](subsystems/subsys-application-framework.md) - [OTA Update](subsystems/subsys-ota-guide.md) - [Telephony](subsystems/subsys-tel.md) - [Security](subsystems/subsys-security.md) - [Startup](subsystems/subsys-boot.md) - [DFX](subsystems/subsys-dfx.md) - Featured Topics - [HPM Part](hpm-part/Readme-EN.md) - Device Development Examples - [Mini- and Small-System Devices](guide/device-lite.md) - [Standard-System Devices](guide/device-standard.md) - Debugging - [Test Case Development](subsystems/subsys-testguide-test.md) - [R&D Tools](subsystems/subsys-toolchain.md) - XTS Certification - [XTS Test Case Development](subsystems/subsys-xts-guide.md) - Tools - [Docker Environment](get-code/gettools-acquire.md) - [IDE](get-code/gettools-ide.md) - Hands-On Tutorials - [Samples](https://gitee.com/openharmony/app_samples/blob/master/README.md) - [Codelabs](https://gitee.com/openharmony/codelabs) - References - [FAQs](faqs/Readme-EN.md) - Contribution - [How to Contribute](../contribute/documentation-contribution.md)