# Guide

- [Futaba Testnet](/docs/guide/futaba-testnet.md)
- [Balance query](/docs/guide/futaba-testnet/balance-query.md): Aggregate the token balances
- [Custom query](/docs/guide/futaba-testnet/custom-query.md): Retrieve arbitrary values
- [Access cache](/docs/guide/futaba-testnet/access-cache.md): Access past queries
- [Cross-chain voting](/docs/guide/futaba-testnet/cross-chain-voting.md): Utilize assets from other chains as voting rights
- [Quick Start](/docs/guide/quick-start.md): Execute simple queries
- [Customize Light Client](/docs/guide/customize-light-client.md): Build your own Light Client Contract
- [Example Apps](/docs/guide/example-apps.md)