# For Developers Before you start building on Vanar mainnet or Vanguard testnet, ensure you have the following prerequisites in place. If you are new to EVM development then we highly recommend you to first learn the basics of EVM and how it works. You can refer to [Ethereum](https://ethereum.org/en/developers) to learn everything related to EVM and how it works along with the development tools required to build on an EVM blockchain. 1. Understanding of how EVM chains work i.e. Vanar, Ethereum and Optimisim. 2. Development environment set up, list of available frameworks [here](https://ethereum.org/en/developers/docs/frameworks/). 3. Network access to Vanguard testnet or Vanar Chain mainnet RPC details. You can see Vanar mainnet and testnet network details [here](/builders/for-developers/vanar-network-details.md). --- # 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.vanarchain.com/builders/for-developers.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.