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

# Tech framework

> Architecture overview of the Droplinked stack and supporting libraries — NestJS backend, React/Next.js frontend, MongoDB, AWS cloud infrastructure, and the lending logic that combines on-chain inventory records with attested payment history.

The Droplinked technology stack was chosen to align with the goal of delivering a **scalable,
efficient, and user-friendly** platform for both traditional and forward-thinking businesses.

The technical library repository is available at
[github.com/orgs/droplinked/repositories](https://github.com/orgs/droplinked/repositories).

## Backend — NestJS

**NestJS** was selected for the backend due to its robust architecture, which leverages
TypeScript and supports modular development. This allows for highly maintainable and scalable
code.

NestJS also provides built-in support for **GraphQL** and **WebSockets**, essential for
real-time data handling and API management — which is crucial for the project's dynamic nature.
Its strong typing and dependency injection features ensure the codebase remains clean and
manageable, facilitating seamless integration with on-chain technologies and ensuring secure and
efficient handling of blockchain interactions.

## Frontend — React + Next.js

**React** was chosen for the frontend due to its component-based architecture, which promotes
reusability and maintainability. React's virtual DOM ensures high performance by minimizing
direct DOM manipulation, resulting in faster user interface updates. Its extensive ecosystem and
strong community support provide access to a wide range of libraries and tools, enabling rapid
development and iteration. React's declarative nature simplifies the development process,
allowing us to create a dynamic and responsive user experience aligned with the goal of
delivering an intuitive and engaging platform.

**Next.js** powers the custom shopfront for SEO-friendliness and server-side rendering of
storefront pages.

## Data layer

<CardGroup cols={2}>
  <Card title="MongoDB" icon="database">
    Primary application database — cost-efficient, reliable, and well-suited to the dynamic
    schema of products, listings, and orders.
  </Card>

  <Card title="Amazon S3" icon="bucket">
    Object storage for product images, banners, exports, and other binary assets.
  </Card>
</CardGroup>

## Cloud infrastructure (AWS)

Droplinked runs on AWS using the services that map naturally to its commerce + AI workloads.

| Service    | Used for                                                      |
| ---------- | ------------------------------------------------------------- |
| ECS        | Containerized service orchestration (backend, 3rdp, services) |
| ECR        | Image registry for the service containers                     |
| CloudFront | CDN for storefronts and static assets                         |
| S3         | Object storage                                                |
| EC2        | Long-running compute                                          |
| ELB        | Load balancing                                                |
| SageMaker  | ML model training and hosting                                 |
| Bedrock    | Managed foundation models (image, text, NSFW classification)  |
| Lambda     | Event-driven serverless workloads                             |

## Lending logic and mechanics

Droplinked combines **on-chain inventory records** with **attested payment-history data** for
loan origination. This is the foundation of the dual-token framework — Lend DROPS (DLND) for
senior secured exposure to real-world trade finance, with Yield DROPS (DYLD) as junior
risk-buffer capital.

<CardGroup cols={2}>
  <Card title="Origination" icon="hand-holding-dollar">
    Combining on-chain inventory records with attested payment history data — borrowers are
    underwriten using verifiable network activity rather than only off-chain bank statements.
  </Card>

  <Card title="Competitive logic flow" icon="git-compare">
    Compared to traditional origination lending, the on-chain flow compresses the parties
    involved and the steps needed to move from application to funded principal.
  </Card>

  <Card title="Automated commercial filings" icon="file-signature">
    The framework supports automated commercial filings based on geography and jurisdiction
    for liabilities — so the legal wrapper around each loan pool stays in sync with the
    on-chain state.
  </Card>
</CardGroup>

## What's next

<CardGroup cols={2}>
  <Card title="Platform overview" href="/guides/platform/overview" icon="layer-group">
    The producer / publisher / lender model and how Droplinked composes commerce, identity, and
    on-chain settlement.
  </Card>

  <Card title="Droplinked toolbox" href="/guides/platform/toolbox" icon="toolbox">
    Tools, libraries, and endpoints to integrate with the Droplinked protocol.
  </Card>

  <Card title="API Reference" href="/api-reference/introduction" icon="code">
    Programmatic access to stores, products, carts, and Web3 payments.
  </Card>

  <Card title="Agentic Commerce" href="/agentic/overview" icon="robot">
    MCP server + ACP feed for agentic discovery and checkout against Droplinked merchants.
  </Card>
</CardGroup>