# Rust Currently, the only programming language supported to build Substreams is Rust, although more might be added in the future. If you have experience with typed programming languages, such as Go or Java, you should be able to understand and learn Rust pretty easily. However, there some features and standards that are specific to the Rust programming language. The Substreams team recommends following the official [Rust by Example tutorial](https://doc.rust-lang.org/rust-by-example/), which pretty much includes everything you should know about Rust. At the same time, the following sections cover some features and standards that are important when developing Substreams. --- # 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.substreams.dev/how-to-guides/develop-your-own-substreams/general/rust.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.