# Architecture and Design

### Modular Middleware Platform

<figure><img src="/files/P255B9p35DBAwufYQ2bi" alt=""><figcaption></figcaption></figure>

### Technical Innovations

LayerPixel uses a modular design to overcome TON's asynchronous limitations and leverage its sharding benefits. This modular approach includes several layers, each serving a specific function:

#### Settlement Layer

The Settlement Layer acts as a secure bank vault, storing all funds and facilitating atomic swaps.

* **Secure Storage**: Funds are held in smart contracts with robust security measures, protecting against unauthorized access and ensuring safe storage.
* **Atomic Transactions**: Ensures transaction integrity across asynchronous shards by managing the finalization process.

#### Funding Layer

The Funding Layer includes PixelWallet (with Account Abstraction features) and EQA Wallet, providing virtual asset storage and token approval functions.

* **Virtual Account Abstraction**: Separates the actual asset storage from the user interface, allowing for more flexible and secure asset management.
* **Token Approval Mechanism**: Enables users to authorize smart contracts to interact with their assets, a functionality not natively supported by TON’s decentralized ledger.

#### Execution Layer

The Execution Layer comprises multiple trading engines, including Automated Market Maker (AMM), weighted pool, and Liquidity Bootstrapping Pool (LBP) engines. These engines handle trade execution and provide a robust trading infrastructure.

* **Asynchronous Execution Handling**: Each engine is designed to handle transactions independently, leveraging TON’s asynchronous nature to process multiple transactions concurrently without conflicts.
* **Custom Algorithms**: Supports advanced trading algorithms such as AMM, weighted pools, and liquidity bootstrapping pools, enabling sophisticated trading strategies and liquidity management.

#### Extension Layer

The Extension Layer is built by third parties and can incorporate additional features such as Anti-Money Laundering (AML) modules and other compliance tools. This ensures that LayerPixel can adapt to regulatory requirements and market needs.

* **Modularity**: Allows for the integration of external modules that can interact with the core components of LayerPixel, enhancing functionality without altering the core system.
* **Interoperability**: Ensures seamless operation with the existing infrastructure.
* **Security**: Allows for the integration of the external security layers.

### Benefits of the Modular Design

* **Enhanced Security and Compliance**: Each layer can be independently secured and managed. The Settlement Layer employs stringent security protocols to protect funds, while the Extension Layer adds compliance tools to meet regulatory requirements.
* **Flexibility and Customization**: Developers can extend LayerPixel’s functionality without altering the core system, allowing for rapid feature development and customization to meet evolving user and market needs.
* **Improved User Experience**: Features like account abstraction and gasless transactions simplify blockchain interactions, making DeFi more accessible to users.
* **Optimized Performance**: The modular architecture ensures that each component operates efficiently within its layer, resulting in faster transactions, lower latency, and a more reliable user experience.


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