| # Components |
| |
| Components are the basic unit of executable software on Fuchsia. |
| |
| ## Architectural concepts |
| |
| - [Introduction](introduction.md): Understanding components and the component |
| framework. |
| - [Component manager](component_manager.md): The runtime. |
| - [Lifecycle](lifecycle.md): Component instance progression from creation to |
| destruction. |
| - [Topology](topology.md): The relationships among component instances. |
| - [Realms](realms.md): Sub-trees of the component instance topology. |
| - [Identifiers](identifiers.md): Identifiers for components and |
| component instances. |
| |
| ## Developing components |
| |
| - [Capabilities](capabilities/README.md): Different types of capabilities and |
| how to route them between components. |
| - [Component manifests](component_manifests.md): How to define a component for |
| the framework. |
| - [ELF runner](elf_runner.md): How to launch a component from an ELF file. |
| Typically useful for developing system components in C++, Rust, or Go. |
| |
| ## Extending the component framework |
| |
| - [Runners](capabilities/runner.md): Instantiate components; add support for |
| more runtimes. |
| - [Resolvers](capabilities/resolver.md): Find components from URLs; add |
| support for methods of software packaging and distribution. |
| |
| ## Internals |
| |
| - [Component manifest design principles][rfc0093] |
| - [Components vs. processes](components_vs_processes.md): how the concepts |
| differ. |
| |
| [rfc0093]: /docs/contribute/governance/rfcs/0093_component_manifest_design_principles.md |
