How do I use the raylib library with c++ to make a game that can run on different systems? What are things to worry about and are there better graphics libraries to use?
To use the raylib library with C++ to make a game that can run on different systems, you will need to do the following:

1. Download and install the raylib library on your computer. You can find the library and the installation instructions on the official website at www.raylib.com.
2. Create a new project in your preferred C++ development environment. Some popular options include Visual Studio, Code::Blocks, or GCC.
3. Include the raylib library in your project. You will need to add the library to your include path and link to it when compiling your project.
4. Write your game using the raylib API. The API provides a wide range of features for creating games, including graphics, audio, and input.
5. Test your game on different systems. You may need to make some adjustments to the code to ensure that it works correctly on different platforms and hardware configurations.

When it comes to things to worry about, you should be mindful of cross-platform compatibility issues, particularly with graphics and input. To ensure that your game works correctly on different systems, you should use the cross-platform APIs provided by raylib, and test your game on different platforms and hardware configurations.

In terms of other graphics libraries, there are many options to choose from. Some popular options include SDL, SFML, and Allegro. Each library has its own strengths and weaknesses, so it's important to choose the library that best fits your needs and your particular project. Ultimately, the best graphics library to use will depend on the specific requirements of your game, your level of experience with programming, and the platform you are targeting.