# Adding Libraries One of the huge advantages of this setup is that you can now easily tap into a huge range of 3rd party library functionality, and it will all be bundled directly into your Site Engine codebase. For example; ## GSAP ``` npm install gsap ``` ## JS Cookie ``` npm install js-cookie ``` ## Luxon For any form of Datetime math you need to do in your site. ## FlatPickr For a date-entry UI --- # 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://engine.sygnal.com/usage/useful-library-additions/adding-libraries.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.