> For the complete documentation index, see [llms.txt](https://satolink.gitbook.io/satolink/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://satolink.gitbook.io/satolink/technology-stack.md).

# Technology Stack

Satolink is built exclusively on Bitcoin-native infrastructure. No sidechains. No bridges. No trusted third parties.

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### Core Layers

#### Bitcoin (L1)

The base settlement layer. Every transaction is ultimately secured by Bitcoin's proof-of-work consensus — the most battle-tested blockchain in existence.

#### Lightning Network (L2)

Instant payment channels built on top of Bitcoin. Sub-second settlement. Near-zero fees. Fully non-custodial channel management.

#### Taproot Assets

Enables USDT and other assets to move natively over the Lightning Network — without leaving Bitcoin's security model. No Ethereum. No Solana. Bitcoin only.

#### Custom Lightning Infrastructure

Our engineering team built and adapted core Lightning tooling from the ground up to fit Satolink's specific architecture. This gives us a technical moat that standard implementations cannot match — enabling faster development cycles, deeper protocol control, and a payment experience no off-the-shelf solution can replicate.

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### Why Bitcoin Only?

> Most crypto projects chase multiple chains. We chose the hardest path: Bitcoin only.

Because Bitcoin is:

* The most decentralized network
* The most secure blockchain
* The only one with a credible monetary policy
* The one that cannot be shut down

For emerging markets, this is not ideology. It is infrastructure that works when nothing else does.

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### Security Architecture

* Non-custodial by design: Satolink never holds user funds
* Private keys stay with the user at all times
* No central point of failure
* Open source core components: [github.com/satolink](https://github.com/satolink)