# Revest Developer Documentation ## Modularity within Revest Revest offers two primary methods for building modular contracts that plug into our tech-stack and allow for anyone to create a Financial Non-Fungible Token (FNFT) to represent an arbitrary position: Address Locks and Output Receivers. * [**Address Locks**](/address-lock-configs.md) **allow for anyone to specify custom unlock conditions for an FNFT with any on-chain data source** * [**Output Receivers**](/output-receiver-overview.md) **allow for any non-fungible financial instrument to be easily represented with an FNFT and frictionlessly incorporated into Revest, permitting the displaying of custom data to the end-user and avoiding the necessity of independently developing an NFT-based GUI.** ## [Revest Contract Source Code](https://github.com/Revest-Finance/RevestContracts) ## [Revest API Source Code](https://github.com/Revest-Finance/RevestAPI) --- # 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://dev.revest.finance/master.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.