diff --git a/.github/workflows/cmake build check.yml b/.github/workflows/cmake build check.yml
index 5b6ff8d9..8b3dc2d1 100644
--- a/.github/workflows/cmake build check.yml	
+++ b/.github/workflows/cmake build check.yml	
@@ -53,7 +53,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-          submodules: true
+          submodules: false
 
       - name: Run build-wrapper
         run: |
@@ -106,7 +106,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-          submodules: true
+          submodules: false
       - name: install dependencies
         run: |
           brew install pcre2 harfbuzz freetype
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f5f4061..92e6fa14 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,9 @@ option(WITH_EPWING_SUPPORT "Enable epwing support" ON)
 option(WITH_XAPIAN "enable Xapian support" ON)
 option(WITH_ZIM "enable zim support" ON)
 
+# options for linux packaging
+option(USE_SYSTEM_FMT "use system fmt instead of bundled one" OFF)
+option(USE_SYSTEM_TOML "use system toml++ instead of bundled one" OFF)
 
 include(FeatureSummary)
 
@@ -79,11 +82,14 @@ target_sources(${GOLDENDICT} PRIVATE
         resources.qrc
         src/scripts/scripts.qrc
         src/stylesheets/css.qrc
-        thirdparty/fmt/format.cc
         ${ALL_SOURCE_FILES}
         ${MACOS_SOURCE_FILES}
         ${QSINGLEAPP_SOURCE_FILES})
 
+if (NOT USE_SYSTEM_FMT)
+    target_sources(${GOLDENDICT} PRIVATE thirdparty/fmt/format.cc)
+endif ()
+
 ### Common parts amount all platforms
 
 # Note: used as c++ string thus need surrounding " "
@@ -108,9 +114,16 @@ target_include_directories(${GOLDENDICT} PRIVATE
         ${PROJECT_SOURCE_DIR}/src/dict
         ${PROJECT_SOURCE_DIR}/src/ui
         ${PROJECT_SOURCE_DIR}/thirdparty/tomlplusplus
-        ${PROJECT_SOURCE_DIR}/thirdparty/fmt/include
         )
 
+if (NOT USE_SYSTEM_TOML)
+    target_include_directories(${GOLDENDICT} PRIVATE ${PROJECT_SOURCE_DIR}/thirdparty/tomlplusplus)
+endif ()
+
+if (NOT USE_SYSTEM_FMT)
+    target_include_directories(${GOLDENDICT} PRIVATE ${PROJECT_SOURCE_DIR}/thirdparty/fmt/include)
+endif ()
+
 #### Compile definitions
 
 target_compile_definitions(${GOLDENDICT} PUBLIC
@@ -134,11 +147,9 @@ if (WITH_XAPIAN)
     target_compile_definitions(${GOLDENDICT} PUBLIC USE_XAPIAN)
 endif ()
 
-if(WITH_ZIM)
-        target_compile_definitions(${GOLDENDICT} PUBLIC
-        MAKE_ZIM_SUPPORT
-        )
-endif()
+if (WITH_ZIM)
+    target_compile_definitions(${GOLDENDICT} PUBLIC MAKE_ZIM_SUPPORT)
+endif ()
 
 #### libraries linking && includes for Win or Unix
 
diff --git a/CMake_Unix.cmake b/CMake_Unix.cmake
index a04c99a1..358b710a 100644
--- a/CMake_Unix.cmake
+++ b/CMake_Unix.cmake
@@ -44,10 +44,9 @@ pkg_check_modules(PKGCONFIG_DEPS IMPORTED_TARGET
         )
 
 target_link_libraries(${GOLDENDICT} PRIVATE
-        # pkg-config packages need manually link
         PkgConfig::PKGCONFIG_DEPS
         BZip2::BZip2
-        ZLIB::ZLIB #hidden requirement of dsl_details.cc and more?
+        ZLIB::ZLIB
         Iconv::Iconv
         )
 
@@ -67,13 +66,21 @@ if (WITH_XAPIAN)
 endif ()
 
 if (WITH_EPWING_SUPPORT)
-    add_subdirectory(thirdparty/eb EXCLUDE_FROM_ALL)
-    target_link_libraries(${GOLDENDICT} PRIVATE eb)
+    find_library(EB_LIBRARY eb REQUIRED)
+    target_link_libraries(${GOLDENDICT} PRIVATE ${EB_LIBRARY})
 endif ()
 
-if(WITH_ZIM)
-    pkg_check_modules(ZIM REQUIRED IMPORTED_TARGET
-     libzim
-    )
+if (WITH_ZIM)
+    pkg_check_modules(ZIM REQUIRED IMPORTED_TARGET libzim)
     target_link_libraries(${GOLDENDICT} PRIVATE PkgConfig::ZIM)
-endif()
+endif ()
+
+if (USE_SYSTEM_FMT)
+    find_package(fmt)
+    target_link_libraries(${GOLDENDICT} PRIVATE fmt::fmt)
+endif ()
+
+if (USE_SYSTEM_TOML)
+    find_package(tomlplusplus)
+    target_link_libraries(${GOLDENDICT} PRIVATE tomlplusplus::tomlplusplus)
+endif ()
\ No newline at end of file
diff --git a/goldendict.pro b/goldendict.pro
index d856cf68..aa917ef0 100644
--- a/goldendict.pro
+++ b/goldendict.pro
@@ -412,7 +412,7 @@ HEADERS += \
     src/wordfinder.hh \
     src/wordlist.hh \
     src/zipfile.hh \
-    thirdparty/tomlplusplus/toml.hpp
+    thirdparty/tomlplusplus/toml++/toml.h
 
 FORMS += $$files(src/ui/*.ui)
 
diff --git a/src/metadata.cc b/src/metadata.cc
index 3d8a6956..83aacff5 100644
--- a/src/metadata.cc
+++ b/src/metadata.cc
@@ -1,5 +1,5 @@
 #include "metadata.hh"
-#include "toml.hpp"
+#include "toml++/toml.h"
 #include <QDebug>
 #include <QFile>
 
diff --git a/thirdparty/tomlplusplus/toml.hpp b/thirdparty/tomlplusplus/toml++/toml.h
similarity index 100%
rename from thirdparty/tomlplusplus/toml.hpp
rename to thirdparty/tomlplusplus/toml++/toml.h