fggl/audio/openal/CMakeLists.txt

+find_package(OpenAL CONFIG)
+if (NOT OpenAL_FOUND)
+    # ubuntu/debian openal-soft package doesn't seem to have a config file
+    # it's probably falling back to findOpenAL.cmake
+    message(STATUS "OpenAL-Soft config missing - falling back")
+    find_package(OpenAL REQUIRED)
+    target_link_libraries(fggl PUBLIC ${OPENAL_LIBRARY})
+    target_include_directories(fggl PUBLIC ${OPENAL_INCLUDE_DIR})
+else ()
+    # we're using target-based
+    message(STATUS "Using OpenAL-Soft config file")
+    if (TARGET OpenAL::OpenAL)
+        target_link_libraries(fggl PUBLIC OpenAL::OpenAL)
+    else ()
+        target_link_libraries(fggl PUBLIC OpenAL)
+    endif ()
+
+endif ()
+
+target_sources(fggl
+    PRIVATE
+        audio.cpp
+        module.cpp
+)
+

fggl/data/assimp/CMakeLists.txt

+find_package(assimp CONFIG)
+if (MSVC)
+    target_link_libraries(${PROJECT_NAME} PUBLIC assimp::assimp)
+else ()
+    target_link_libraries(${PROJECT_NAME} PUBLIC assimp)
+endif ()
+
+target_sources(fggl
+        PRIVATE
+            module.cpp
+            image.cpp
+)
\ No newline at end of file