diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc319a4..6495048 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,51 +27,6 @@ add_library(squirrel STATIC
 target_include_directories(squirrel PUBLIC include)
 set_target_properties(squirrel PROPERTIES PUBLIC_HEADER include/squirrel.h)
 
-include(CTest)
-enable_testing()
-
-add_executable(keyboard_press_release tests/keyboard_press_release.c)
-target_link_libraries(keyboard_press_release squirrel)
-add_test(NAME keyboard_press_release COMMAND keyboard_press_release)
-
-add_executable(keyboard_modifier_press_release tests/keyboard_modifier_press_release.c)
-target_link_libraries(keyboard_modifier_press_release squirrel)
-add_test(NAME keyboard_modifier_press_release COMMAND keyboard_modifier_press_release)
-
-add_executable(quantum_passthrough_press_release tests/quantum_passthrough_press_release.c)
-target_link_libraries(quantum_passthrough_press_release squirrel)
-add_test(NAME quantum_passthrough_press_release COMMAND quantum_passthrough_press_release)
-
-add_executable(keyboard_get_keycodes tests/keyboard_get_keycodes.c)
-target_link_libraries(keyboard_get_keycodes squirrel)
-add_test(NAME keyboard_get_keycodes COMMAND keyboard_get_keycodes)
-
-add_executable(consumer_press_release tests/consumer_press_release.c)
-target_link_libraries(consumer_press_release squirrel)
-add_test(NAME consumer_press_release COMMAND consumer_press_release)
-
-add_executable(key tests/key.c)
-target_link_libraries(key squirrel)
-add_test(NAME key COMMAND key)
-
-add_executable(layer_press_release tests/layer_press_release.c)
-target_link_libraries(layer_press_release squirrel)
-add_test(NAME layer_press_release COMMAND layer_press_release)
-
-add_executable(consumer_activate_deactivate_get_consumer_code tests/consumer_activate_deactivate_get_consumer_code.c)
-target_link_libraries(consumer_activate_deactivate_get_consumer_code squirrel)
-add_test(NAME consumer_activate_deactivate_get_consumer_code COMMAND consumer_activate_deactivate_get_consumer_code)
-
-add_executable(keyboard_activate_deactivate_keycode tests/keyboard_activate_deactivate_keycode.c)
-target_link_libraries(keyboard_activate_deactivate_keycode squirrel)
-add_test(NAME keyboard_activate_deactivate_keycode COMMAND keyboard_activate_deactivate_keycode)
-
-add_executable(keyboard_activate_deactivate_get_modifier tests/keyboard_activate_deactivate_get_modifier.c)
-target_link_libraries(keyboard_activate_deactivate_get_modifier squirrel)
-add_test(NAME keyboard_activate_deactivate_get_modifier COMMAND keyboard_activate_deactivate_get_modifier)
-
-add_executable(keymap tests/keymap.c)
-target_link_libraries(keymap squirrel)
-target_compile_definitions(keymap PRIVATE SQUIRREL_KEYCOUNT=2)
-add_test(NAME keymap COMMAND keymap)
-
+if (BUILD_TESTING)
+        add_subdirectory(tests)
+endif()
diff --git a/flake.nix b/flake.nix
index 60f3682..8091893 100644
--- a/flake.nix
+++ b/flake.nix
@@ -51,6 +51,7 @@
               runHook postCheck
             '';
           };
+          packages.default = packages.squirrel;
           checks.squirrel = packages.squirrel.overrideAttrs (oldAttrs: {
             doCheck = true;
           });
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..1150de6
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,56 @@
+add_compile_options(-O3)
+include(CTest)
+enable_testing()
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMakeModules")
+if(CMAKE_COMPILER_IS_GNUCXX)
+    include(CodeCoverage)
+    APPEND_COVERAGE_COMPILER_FLAGS()
+    setup_target_for_coverage_gcovr_html(squirrel squirrel_test coverage)
+    list(APPEND GCOVR_EXCLUDES "tests/")
+endif()
+
+add_executable(keyboard_press_release tests/keyboard_press_release.c)
+target_link_libraries(keyboard_press_release squirrel)
+add_test(NAME keyboard_press_release COMMAND keyboard_press_release)
+
+add_executable(keyboard_modifier_press_release tests/keyboard_modifier_press_release.c)
+target_link_libraries(keyboard_modifier_press_release squirrel)
+add_test(NAME keyboard_modifier_press_release COMMAND keyboard_modifier_press_release)
+
+add_executable(quantum_passthrough_press_release tests/quantum_passthrough_press_release.c)
+target_link_libraries(quantum_passthrough_press_release squirrel)
+add_test(NAME quantum_passthrough_press_release COMMAND quantum_passthrough_press_release)
+
+add_executable(keyboard_get_keycodes tests/keyboard_get_keycodes.c)
+target_link_libraries(keyboard_get_keycodes squirrel)
+add_test(NAME keyboard_get_keycodes COMMAND keyboard_get_keycodes)
+
+add_executable(consumer_press_release tests/consumer_press_release.c)
+target_link_libraries(consumer_press_release squirrel)
+add_test(NAME consumer_press_release COMMAND consumer_press_release)
+
+add_executable(key tests/key.c)
+target_link_libraries(key squirrel)
+add_test(NAME key COMMAND key)
+
+add_executable(layer_press_release tests/layer_press_release.c)
+target_link_libraries(layer_press_release squirrel)
+add_test(NAME layer_press_release COMMAND layer_press_release)
+
+add_executable(consumer_activate_deactivate_get_consumer_code tests/consumer_activate_deactivate_get_consumer_code.c)
+target_link_libraries(consumer_activate_deactivate_get_consumer_code squirrel)
+add_test(NAME consumer_activate_deactivate_get_consumer_code COMMAND consumer_activate_deactivate_get_consumer_code)
+
+add_executable(keyboard_activate_deactivate_keycode tests/keyboard_activate_deactivate_keycode.c)
+target_link_libraries(keyboard_activate_deactivate_keycode squirrel)
+add_test(NAME keyboard_activate_deactivate_keycode COMMAND keyboard_activate_deactivate_keycode)
+
+add_executable(keyboard_activate_deactivate_get_modifier tests/keyboard_activate_deactivate_get_modifier.c)
+target_link_libraries(keyboard_activate_deactivate_get_modifier squirrel)
+add_test(NAME keyboard_activate_deactivate_get_modifier COMMAND keyboard_activate_deactivate_get_modifier)
+
+add_executable(keymap tests/keymap.c)
+target_link_libraries(keymap squirrel)
+target_compile_definitions(keymap PRIVATE SQUIRREL_KEYCOUNT=2)
+add_test(NAME keymap COMMAND keymap)