# Gaia Documentation

Welcome to the `Gaia` docs. `Gaia` is the current name of the Cosmos SDK application for the Cosmos Hub.

## Join the Cosmos Hub Mainnet

- [Install the `gaia` application](./installation.md)
- [Set up a full node and join the mainnet](./join-mainnet.md)
- [Upgrade to a validator node](./validators/validator-setup.md)

## Join the Cosmos Hub Public Testnet

- [Join the testnet](./join-testnet.md)

## Setup your own `gaia` testnet

- [Setup your own `gaia` testnet](./deploy-testnet.md)

## Additional resources

- [Intro to validators](./validators/overview.md)
- [Validator FAQ](./validators/validator-faq.md)
- [Validator security considerations](./validators/security.md)