diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc17f2c8..41d43c1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,8 @@
 # SOFTWARE.
 
 cmake_minimum_required(VERSION 3.12)
-project(mp-units)
+project(mp-units
+    LANGUAGES CXX)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
@@ -41,12 +42,12 @@ add_subdirectory(src)
 # set restrictive compilation warnings
 set_warnings(mp-units)
 
-# add unit tests
-enable_testing()
-add_subdirectory(test)
-
 # add usage example
 add_subdirectory(example)
 
 # generate project documentation
 add_subdirectory(docs)
+
+# add unit tests
+enable_testing()
+add_subdirectory(test)
diff --git a/cmake/common/scripts.cmake b/cmake/common/scripts.cmake
index b3ea4224..cf732be5 100644
--- a/cmake/common/scripts.cmake
+++ b/cmake/common/scripts.cmake
@@ -22,7 +22,6 @@
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
 
-include(conan)
 include(install)
 include(static_analysis)
 include(warnings)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9c591814..a8a457f3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -41,20 +41,6 @@ find_package(Microsoft.GSL CONFIG REQUIRED)
 
 # library definition
 add_library(mp-units INTERFACE)
-#target_sources(mp-units INTERFACE
-#    include/units/dimension.h
-#    include/units/quantity.h
-#    include/units/unit.h
-#
-#    include/units/bits/tools.h
-#    include/units/bits/type_list.h
-#
-#    include/units/si/base_dimensions.h
-#    include/units/si/frequency.h
-#    include/units/si/length.h
-#    include/units/si/time.h
-#    include/units/si/speed.h
-#)
 target_compile_features(mp-units INTERFACE cxx_std_20)
 target_link_libraries(mp-units
     INTERFACE