Creating your own framework is always interesting and challenging. When you craft one, it is essential to think about the end-user and how they will use it in their daily programming life. Will it be intuitive for them, or will they need to read a lot of documentation to write some simple examples? All these questions are crucial. In my presentation, I will talk about the process of crafting a framework using Rust and Procedural Macros, and the kinds of problems it might cause during development. I will discuss which libraries are better to use and the challenges they bring for the end-user. This will be useful for people who love Rust and crafting their libraries or frameworks using Rust. We will delve into procedural macros — what they are, how to use them, and their advantages and disadvantages. After the presentation, you will have a basic understanding of how to use procedural macros and how to apply them to libraries or framework APIs.