After the software program and the kernel code is written, you can build the application, which includes compiling the software program, and linking the platform with the PL kernel file to create the device binary (.xclbin). The build process follows a standard compilation and linking process for both the software program and the kernel code, followed by packaging the outputs for use. However, the first step in building the application is to identify the build target, indicating if you are building for test or simulation of the application, or building for the target hardware. After building, both the host program and the FPGA binary, you will be ready to run the application.