- cpp20 - provides flags to enable C++20 no available in CMake
- ext_cmake_compiler_warnings - provides different warning sets
- ext_cmake_install - install support macros
- ext_cmake_setup - setup macro used in extcpp projects
- ext_cmake_utils - provides some nice helper functions and macros
- ext_script_git_version - script that creates an include file containing the git commit hash
- FindFilesystem
- FindSDL, FindSDL_mixer