# Summary In this chapter we've scratched the surface of Qt for MCUs and Qt Quick Ultralite. These technologies bring Qt to much smaller platforms and make it truly embeddable. Through-out this chapter, we've used the virtual desktop target, which allows for quick prototyping. Targeting a specific board is just as easy, but requires access to hardware and the associated tools. Key take-aways from using Qt Quick Ultralite is that there are fewer built in elements, and that some APIs are slightly more restricted. But given the intended target systems, this is usually not a hindrance. Qt Quick Ultralite also turns QML into a compiled language, which actually is nice. It allows you to catch more errors during compile time, instead of having to test more during run time. --- # 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.novaflowos.com/start/qt6-qml-book/readme/ch20-qtformcu/summary.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.