> For the complete documentation index, see [llms.txt](https://docs.capsulelabs.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.capsulelabs.xyz/capsulenft/developer-walkthroughs/developer-overview.md).

# Developer Overview

### Contract Overview

The Capsule Protocol utilizes three main Ethereum contracts to perform all of its on-chain functions.

* [**Capsule NFT contract**](/capsulenft/developer-walkthroughs/contracts/capsule.sol.md) 
* [**CapsuleFactory contract**](/capsulenft/developer-walkthroughs/contracts/capsulefactory.sol.md)
* [**CapsuleMinter contract**](/capsulenft/developer-walkthroughs/contracts/capsuleminter.sol.md)

The *CapsuleMinter* and *CapsuleFactory* contracts are attached to a proxy contract, meaning they are upgradable. 

The *Capsule NFT* contract can be 'upgraded' by changing the deploy address. This allows future Collections to support much greater functionality, such as storing other token types or storing combinations of other tokens. 

{% hint style="info" %}
For more information on the *contracts utilized in the Capsule Protocol*, please read [Contracts](/capsulenft/developer-walkthroughs/contracts.md).
{% endhint %}

### Developer Walkthroughs

Walkthroughs of which methods to use when incorporating the Capsule Protocol in your application can be found in [Developer Walkthroughs](/capsulenft/developer-walkthroughs.md).

The example scenarios that are covered include:

* [User wants to mint any type of Capsule NFT](/capsulenft/developer-walkthroughs/developer-mint-a-capsule-nft.md)
* [User wants to redeem any type of Capsule NFT](/capsulenft/developer-walkthroughs/developer-redeem-a-capsule-nft.md)
* [User wants to create a Capsule Collection](/capsulenft/developer-walkthroughs/developer-create-a-capsule-collection.md)
* [User wants to manage their created Capsule Collection](/capsulenft/developer-walkthroughs/developer-managing-a-capsule-collection.md)

### Decentralization

All Capsule Protocol contracts are decentralized. If the Capsule Team vanished tomorrow, the ecosystem would continue to work exactly as coded.