--- CMakeLists.txt.orig	2025-07-27 17:50:34 UTC
+++ CMakeLists.txt
@@ -23,30 +23,34 @@ else()
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /O2 /EHsc /bigobj /utf-8 /Zc:preprocessor")
     set(WIN32_RESOURCES ".resources/images/vtm.rc")
 else()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -pthread")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2 -DLUA_USE_POSIX")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DLUA_USE_POSIX")
     # Static linkage
     #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static -O2 -pthread")
     #set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static -O2 -DLUA_USE_POSIX")
 endif()
 
 # Lua dependency
-include(FetchContent)
-FetchContent_Declare(lua
-                     URL      https://www.lua.org/ftp/lua-5.4.7.tar.gz
-                     URL_HASH SHA256=9fbf5e28ef86c69858f6d3d34eccc32e911c1a28b4120ff3e84aaa70cfbf1e30)
-FetchContent_MakeAvailable(lua)
-file(GLOB lua_src CONFIGURE_DEPENDS ${lua_SOURCE_DIR}/src/*.c)
-list(REMOVE_ITEM lua_src ${lua_SOURCE_DIR}/src/lua.c ${lua_SOURCE_DIR}/src/luac.c)
-add_library(lua ${lua_src})
-target_include_directories(lua PUBLIC ${lua_SOURCE_DIR}/src)
-target_sources(lua PRIVATE ${lua_src})
+#include(FetchContent)
+#FetchContent_Declare(lua
+#                     URL      https://www.lua.org/ftp/lua-5.4.7.tar.gz
+#                     URL_HASH SHA256=9fbf5e28ef86c69858f6d3d34eccc32e911c1a28b4120ff3e84aaa70cfbf1e30)
+#FetchContent_MakeAvailable(lua)
+#file(GLOB lua_src CONFIGURE_DEPENDS ${lua_SOURCE_DIR}/src/*.c)
+#list(REMOVE_ITEM lua_src ${lua_SOURCE_DIR}/src/lua.c ${lua_SOURCE_DIR}/src/luac.c)
+#add_library(lua ${lua_src})
+#target_include_directories(lua PUBLIC ${lua_SOURCE_DIR}/src)
+#target_sources(lua PRIVATE ${lua_src})
 
+find_package(PkgConfig)
+pkg_check_modules(LUA REQUIRED lua-5.4 IMPORTED_TARGET GLOBAL)
+
 add_executable(vtm "src/vtm.cpp" ${WIN32_RESOURCES})
 # add_executable(term "src/netxs/apps/term.cpp")
 # add_executable(calc "src/netxs/apps/calc.cpp")
 
-target_link_libraries(vtm PRIVATE lua)
+target_include_directories(vtm PRIVATE ${LUA_INCLUDE_DIRS})
+target_link_libraries(vtm ${LUA_LINK_LIBRARIES})
 # target_link_libraries(term PRIVATE lua)
 # target_link_libraries(calc PRIVATE lua)