> ## Documentation Index
> Fetch the complete documentation index at: https://docs.optimism.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Kona as a Library

Kona is designed as a modular, library-first OP Stack implementation in Rust. This design philosophy allows developers to integrate Kona components into their applications and build custom solutions on top of the OP Stack.

## Library Structure

Kona is organized as a collection of focused crates that can be used independently or together:

* **Protocol Libraries**: Core protocol logic and data structures
* **Node Components**: Modular node architecture for building custom rollup nodes
* **Proof System**: Fault proof generation and verification
* **Utilities**: Common utilities and helper functions

## Key Benefits

* **Modularity**: Use only the components you need
* **Performance**: Rust's zero-cost abstractions and memory safety
* **Extensibility**: Easy to extend and customize for specific use cases
* **Reliability**: Strong typing and comprehensive testing

## Getting Started

To use Kona as a library, add the relevant crates to your `Cargo.toml`:

```toml theme={null}
[dependencies]
kona-derive = "0.1"
kona-protocol = "0.1"
kona-node = "0.1"
```

## Examples

See the [Examples](/rust/kona/sdk/examples/intro) section for practical usage examples and integration patterns.