Index: tenmon/CMakeLists.txt
===================================================================
--- tenmon.orig/CMakeLists.txt
+++ tenmon/CMakeLists.txt
@@ -24,8 +24,8 @@ find_library(RAW_LIB NAMES raw_r REQUIRE
 find_library(WCS_LIB wcs wcslib REQUIRED)
 find_library(LCMS2_LIB lcms2 REQUIRED)
 find_library(STELLARSOLVER_LIB NAMES stellarsolver stellarsolver6)
-
-add_subdirectory(libXISF)
+find_library(LibXISF_LIBRARY NAMES libXISF XISF REQUIRED)
+find_library(ZSTD_LIB NAMES zstd REQUIRED)
 
 set(TENMON_SRC
     src/about.cpp src/about.h
@@ -79,7 +79,7 @@ endif()
 qt_add_executable(tenmon WIN32 MACOSX_BUNDLE ${tenmon_ICON} ${TENMON_SRC})
 
 find_path(FITS_INCLUDE fitsio2.h PATH_SUFFIXES cfitsio REQUIRED)
-target_include_directories(tenmon PRIVATE ${FITS_INCLUDE} ${CMAKE_BINARY_DIR} ${libXISF_SOURCE_DIR} "src")
+target_include_directories(tenmon PRIVATE ${FITS_INCLUDE} ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src)
 
 option(COLOR_MANAGMENT "Enable sRGB framebuffer support for gamma correct images and color profiles support" ON)
 if(COLOR_MANAGMENT)
@@ -105,7 +105,8 @@ if(STELLARSOLVER_INCLUDE AND STELLARSOLV
     message(STATUS "Found stellarsolver ${STELLARSOLVER_INCLUDE} ${STELLARSOLVER_LIB}")
 endif(STELLARSOLVER_INCLUDE AND STELLARSOLVER_LIB)
 
-target_link_libraries(tenmon PRIVATE Qt6::Widgets Qt6::Sql Qt6::OpenGLWidgets Qt6::Qml Qt6::Charts ${EXIF_LIB} ${FITS_LIB} ${RAW_LIB} ${WCS_LIB} ${LCMS2_LIB} XISF)
+target_link_libraries(tenmon PRIVATE Qt6::Widgets Qt6::Sql Qt6::OpenGLWidgets Qt6::Qml Qt6::Charts ${EXIF_LIB} ${FITS_LIB} ${RAW_LIB} ${WCS_LIB} ${LCMS2_LIB} ${LibXISF_LIBRARY} ${ZSTD_LIB})
+
 if(APPLE)
     target_link_libraries(tenmon PRIVATE Qt6::DBus "-framework CoreFoundation")
 elseif(UNIX)