diff -Naur a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2023-10-02 08:31:59.000000000 +0600
+++ b/CMakeLists.txt	2023-10-31 19:31:10.000000000 +0600
@@ -354,6 +354,11 @@
   add_library(qtsingleapplication INTERFACE)
   target_link_libraries(qtsingleapplication INTERFACE QTSINGLEAPPLICATION_LIBRARIES)
   target_include_directories(qtsingleapplication INTERFACE QTSINGLEAPPLICATION_INCLUDE_DIRS)
+  find_path(QTSINGLECOREAPPLICATION_INCLUDE_DIRS qtsinglecoreapplication.h PATH_SUFFIXES qt5/QtSolutions REQUIRED)
+  find_library(QTSINGLECOREAPPLICATION_LIBRARIES Qt5Solutions_SingleCoreApplication-2.6 REQUIRED)
+  add_library(qtsinglecoreapplication INTERFACE)
+  target_link_libraries(qtsinglecoreapplication INTERFACE QTSINGLECOREAPPLICATION_LIBRARIES)
+  target_include_directories(qtsinglecoreapplication INTERFACE QTSINGLECOREAPPLICATION_INCLUDE_DIRS)
 else(USE_SYSTEM_QTSINGLEAPPLICATION)
   add_subdirectory(3rdparty/qtsingleapplication)
   set(QTSINGLEAPPLICATION_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/qtsingleapplication)