# Getting started Citrea is the first rollup that enhances the capabilities of Bitcoin blockspace with zero knowledge technology. Citrea is the only scalability solution that uses Bitcoin both as a data availability and a settlement layer, via its BitVM-based trust-minimized two-way peg program - [Clementine](https://docs.citrea.xyz/essentials/clementine-trust-minimized-bitcoin-bridge). Citrea is fully EVM compatible, enabling all EVM developers to easily build on Bitcoin. This documentation serves as a knowledge base for both developers and users. If you're a developer, you can check our [developer documentation](https://docs.citrea.xyz/developer-documentation/developer-documentation), and if you're a user, you can start using the Citrea Mainnet by [bridging to Citrea](https://citrea.xyz/bridge). Along with that, you can check our architecture and security properties from the links in the sidebar. You can also join our community or follow us from the links below: * [Join our Discord](https://discord.gg/citrea) * [Follow us on Twitter | X](https://x.com/citrea_xyz) * [Website](https://citrea.xyz) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.citrea.xyz/welcome/readme.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.