Before playing with the libraries, set up the Vitis environment first. For instructions on setting up the Vitis environment, refer to Setting Up the Vitis Environment. Below are the example scripts to set up Vitis and XRT:
$ source <Vitis Tool Installation Path>/Vitis/2023.2/settings64.sh
$ source /opt/xilinx/xrt/setup.sh
$ export PLATFORM_REPO_PATHS=<Platform Installation Path>