# Startup<a name="EN-US_TOPIC_0000001157319415"></a>

-   **[Startup](subsys-boot-overview.md)**  
-   **[init Module](subsys-boot-init.md)**  
-   **[appspawn Module](subsys-boot-appspawn.md)**
-   **[bootstrap Module](subsys-boot-bootstrap.md)**  
-   **[FAQs](subsys-boot-faqs.md)**  
-   **[Reference](subsys-boot-ref.md)**