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

# Why Lerian

> Understand how Lerian helps financial institutions modernize core banking — without vendor lock-in.

export const GSourceAvailable = ({children}) => <Tooltip headline="Source-available" tip="A licensing model where the source code is publicly accessible for inspection, modification, and self-hosting, while certain commercial uses may require a license." cta="See glossary" href="/en/glossary">
    {children}
  </Tooltip>;

Modern financial institutions face a common set of challenges: legacy systems that cost too much to maintain, adapt too slowly, and lock you into vendors who dictate the roadmap.

Lerian gives you back control.

## The problems we solve

***

| Challenge                 | How Lerian helps                                                                                                                     |
| :------------------------ | :----------------------------------------------------------------------------------------------------------------------------------- |
| **Vendor lock-in**        | <GSourceAvailable>Source-available</GSourceAvailable> code means you own your infrastructure. No single vendor controls your roadmap |
| **Slow time-to-market**   | Modular platform lets you launch new products in weeks, not months                                                                   |
| **Compliance burden**     | Built-in audit trails, regulatory reporting, and immutable records reduce manual compliance work                                     |
| **Reconciliation errors** | Automated reconciliation replaces manual spreadsheet matching, catching discrepancies in real time                                   |
| **Operational cost**      | Replace multiple disconnected systems with one composable platform                                                                   |
| **Scaling limitations**   | Handle millions of transactions per day without re-platforming                                                                       |

## What the platform includes

***

| Business need                     | Lerian product | What it does                                                                                   |
| :-------------------------------- | :------------- | :--------------------------------------------------------------------------------------------- |
| Central financial record-keeping  | **Midaz**      | Manages accounts, balances, and transactions with full audit trails                            |
| Regulatory and business reporting | **Reporter**   | Generates compliance reports (BACEN, SOX) and business analytics automatically                 |
| Transaction reconciliation        | **Matcher**    | Compares internal records against bank statements and payment processors — flags discrepancies |
| Real-time transaction controls    | **Tracer**     | Validates transactions against spending limits and business rules before they execute          |
| Workflow automation               | **Flowker**    | Automates approval flows, anti-fraud checks, and payment orchestration                         |

## Deployment flexibility

***

You choose how to run the platform:

* **Fully managed (SaaS)**: Lerian handles everything. Your team focuses on configuration and business logic. Fastest path to production.
* **Your infrastructure (BYOC)**: Deploy in your own cloud or on-premises. Full control over data residency, security, and compliance boundaries.

Both options support the full product portfolio. Choose based on your regulatory requirements and operational maturity.

[Compare deployment models in detail →](/en/deployment-models)

## Built for trust and independence

***

* **Source-available**: Inspect, audit, and extend the code. No black boxes
* **No vendor lock-in**: Standard interfaces and open formats. You can always move
* **Compliance-ready**: Immutable audit trails, double-entry enforcement, and regulatory reporting ship built in — not bolted on
* **Incremental adoption**: Start with one product and expand as needed. No big-bang migration required

## Who uses Lerian

***

* **Digital banks** launching new financial products
* **Traditional banks** modernizing legacy cores incrementally
* **Fintechs** building embedded finance and payment platforms
* **Enterprises** streamlining payments, collections, and reconciliation across business units

## Next steps

***

<CardGroup cols={2}>
  <Card title="Our Core Banking vision" icon="building-columns" href="/en/core-banking-vision" cta="Read the vision">
    Understand the four pillars that form our architectural philosophy.
  </Card>

  <Card title="Getting started" icon="rocket" href="/en/getting-started" cta="Start here">
    Choose your path — evaluate the platform or start building.
  </Card>

  <Card title="Deployment models" icon="cloud" href="/en/deployment-models" cta="Compare options">
    Understand the differences between fully managed and self-hosted deployment.
  </Card>

  <Card title="Talk to us" icon="comments" href="https://lerian.studio/en/contact" cta="Get in touch">
    Have questions? Exploring a partnership? Let's talk.
  </Card>
</CardGroup>