diff --git a/.gitmodules b/.gitmodules
index 560dad57..1d2f5725 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,9 +7,6 @@
 [submodule "external/fmt"]
 	path = external/fmt
 	url = https://github.com/fmtlib/fmt.git
-[submodule "external/cxx"]
-	path = external/cxx
-	url = https://github.com/topjohnwu/libcxx.git
 [submodule "patch/libs/manifest-editor"]
     path = axml/libs/manifest-editor
     url = https://github.com/WindySha/ManifestEditor.git
diff --git a/build.gradle.kts b/build.gradle.kts
index 346ce4bf..03aaec24 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -35,7 +35,6 @@ cmaker {
             arrayOf(
                 "-DEXTERNAL_ROOT=${File(rootDir.absolutePath, "external")}",
                 "-DCORE_ROOT=${File(rootDir.absolutePath, "core/src/main/jni")}",
-                "-DANDROID_STL=none",
                 "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON",
             )
         )
@@ -119,4 +118,4 @@ subprojects {
             targetCompatibility = androidTargetCompatibility
         }
     }
-}
\ No newline at end of file
+}
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 122addff..434f9b81 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -7,99 +7,6 @@ endmacro()
 SET_OPTION(Plugin.SymbolResolver OFF)
 SET_OPTION(FMT_INSTALL OFF)
 
-set(LIBCXX_SOURCES
-        algorithm.cpp
-#        any.cpp
-        atomic.cpp
-        barrier.cpp
-#        bind.cpp
-        charconv.cpp
-        chrono.cpp
-        condition_variable.cpp
-        condition_variable_destructor.cpp
-#        debug.cpp
-        exception.cpp
-#        filesystem/directory_iterator.cpp
-#        filesystem/int128_builtins.cpp
-#        filesystem/operations.cpp
-        functional.cpp
-        future.cpp
-        hash.cpp
-#        ios.cpp
-#        ios.instantiations.cpp
-#        iostream.cpp
-#        locale.cpp
-        memory.cpp
-        mutex.cpp
-        mutex_destructor.cpp
-        new.cpp
-        optional.cpp
-        random.cpp
-#        regex.cpp
-#        ryu/d2fixed.cpp
-#        ryu/d2s.cpp
-#        ryu/f2s.cpp
-        shared_mutex.cpp
-        stdexcept.cpp
-        string.cpp
-#        strstream.cpp
-        system_error.cpp
-        thread.cpp
-#        typeinfo.cpp
-        utility.cpp
-        valarray.cpp
-        variant.cpp
-        vector.cpp
-        )
-
-list(TRANSFORM LIBCXX_SOURCES PREPEND cxx/src/)
-
-set(LIBCXX_EXPORT_FLAGS
-        -DLIBCXX_BUILDING_LIBCXXABI
-        -D_LIBCPP_NO_EXCEPTIONS
-        -D_LIBCPP_NO_RTTI
-        -D_LIBCPP_BUILDING_LIBRARY
-        -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS
-        -D_LIBCXXABI_NO_EXCEPTIONS
-        -D_LIBCPP_HAS_NO_LOCALIZATION
-        )
-set(LIBCXX_FLAGS
-        -fvisibility-global-new-delete-hidden
-        -fvisibility=hidden
-        -fvisibility-inlines-hidden
-        )
-set(LIBCXX_EXPORT_INCLUDES cxx/include)
-set(LIBCXX_INCLUDES cxx/src)
-
-set(LIBCXXABI_SOURCES
-        abort_message.cpp
-        cxa_aux_runtime.cpp
-        cxa_default_handlers.cpp
-        cxa_exception_storage.cpp
-        cxa_guard.cpp
-        cxa_handlers.cpp
-        cxa_noexception.cpp
-        cxa_thread_atexit.cpp
-        cxa_vector.cpp
-        cxa_virtual.cpp
-        stdlib_exception.cpp
-        stdlib_new_delete.cpp
-        stdlib_stdexcept.cpp
-        stdlib_typeinfo.cpp
-        )
-list(TRANSFORM LIBCXXABI_SOURCES PREPEND cxx/src/abi/)
-set(LIBCXXABI_FLAGS
-        -Wno-macro-redefined
-        -Wno-unknown-attributes
-        -DHAS_THREAD_LOCAL)
-set(LIBCXXABI_INCLUDES cxx/include/abi)
-
-add_library(cxx STATIC ${LIBCXX_SOURCES} ${LIBCXXABI_SOURCES})
-target_compile_options(cxx PUBLIC ${LIBCXX_EXPORT_FLAGS})
-target_compile_options(cxx PRIVATE ${LIBCXX_FLAGS} ${LIBCXXABI_FLAGS} -ffunction-sections -fdata-sections)
-target_include_directories(cxx PUBLIC ${LIBCXX_EXPORT_INCLUDES})
-target_include_directories(cxx PRIVATE ${LIBCXX_INCLUDES} ${LIBCXXABI_INCLUDES})
-
 set(XZ_SOURCES
 	xz_crc32.c
 	xz_crc64.c
@@ -112,10 +19,7 @@ add_library(xz_static STATIC ${XZ_SOURCES})
 target_compile_options(xz_static PRIVATE -DXZ_USE_CRC64)
 target_include_directories(xz_static PRIVATE ${XZ_INCLUDES})
 
-link_libraries(cxx)
-
 OPTION(LSPLANT_BUILD_SHARED OFF)
-OPTION(LSPLT_BUILD_SHARED OFF)
 add_subdirectory(dobby)
 add_subdirectory(fmt)
 add_subdirectory(lsplant/lsplant/src/main/jni)
diff --git a/external/cxx b/external/cxx
deleted file mode 160000
index 12c8f4e9..00000000
--- a/external/cxx
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 12c8f4e93f196a700137e983dcceeac43cf807f2