# Developer Concepts If you've read about the [Platform Overview](/platform-overview.md) and got a chance to [Building Your First Mod](/developing-mods/building-your-first-mod.md) but want to learn more, explore these Developer Concepts to learn design patterns and best practices for accomplishing what you need with PixieBrix. * [Text Template Guide](/developing-mods/developer-concepts/text-template-guide.md): useful for referencing variables in text or running nunjucks templates to perform functions throughout your mod * [Types of Mods](/developing-mods/developer-concepts/types-of-mods.md): essential for understanding options for triggering a mod and best practices for configuring triggers effectively * [Using Bricks](/developing-mods/developer-concepts/using-bricks.md): bricks are the building blocks of PixieBrix and this section helps you understand how to best work with them * [Variables and Data Context](/developing-mods/developer-concepts/variables-and-data-context.md): mods store contextual data and produce data throughout the mod run that you can access and store * [User Input](/developing-mods/developer-concepts/user-input.md): learn about collecting information and verifying data with users as they run your mods * [Working With APIs](/developing-mods/developer-concepts/working-with-apis.md): useful for interacting with other tools for your automation * [Working with Markdown](/developing-mods/developer-concepts/working-with-markdown.md): useful for styling forms and interfaces * [Control Flow](/developing-mods/developer-concepts/control-flow.md): create multiple paths of execution based on outcomes from previous bricks * [Transforming Data](/developing-mods/developer-concepts/transforming-data.md): modify from bricks to get information in the format you need * [Building Interfaces](/developing-mods/developer-concepts/building-interfaces.md): style modals and sidebar panels for interacting with users during automation and displaying responses --- # 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.pixiebrix.com/developing-mods/developer-concepts.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.