diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 3936f9035..9cf262a87 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -279,6 +279,9 @@ else()
 endif()
 declare_project(thirdparty/kobo-usbms ${EXCLUDE_FROM_ALL})
 
+# lanes
+declare_project(thirdparty/lanes DEPENDS luajit)
+
 # leptonica
 declare_project(thirdparty/leptonica DEPENDS libpng)
 
diff --git a/ffi-cdecl/lanes_cdecl.c b/ffi-cdecl/lanes_cdecl.c
new file mode 100644
index 000000000..07ccb6531
--- /dev/null
+++ b/ffi-cdecl/lanes_cdecl.c
@@ -0,0 +1 @@
+cdecl_func(luaopen_lanes_core)
diff --git a/thirdparty/cmake_modules/koreader_targets.cmake b/thirdparty/cmake_modules/koreader_targets.cmake
index 1a94fcea7..af64918fa 100644
--- a/thirdparty/cmake_modules/koreader_targets.cmake
+++ b/thirdparty/cmake_modules/koreader_targets.cmake
@@ -298,6 +298,7 @@ if(MONOLIBTIC)
         freetype2::freetype
         giflib::gif
         harfbuzz::harfbuzz
+        lanes::core
         leptonica::leptonica
         libjpeg-turbo::turbojpeg
         libk2pdfopt::k2pdfopt
@@ -347,6 +348,7 @@ if(MONOLIBTIC)
             giflib_decl
             harfbuzz_cdecl
             koptcontext_cdecl
+            lanes_cdecl
             leptonica_cdecl
             libarchive_cdecl
             libwebp_decl
diff --git a/thirdparty/cmake_modules/koreader_thirdparty_libs.cmake b/thirdparty/cmake_modules/koreader_thirdparty_libs.cmake
index dea138078..41f8648d0 100644
--- a/thirdparty/cmake_modules/koreader_thirdparty_libs.cmake
+++ b/thirdparty/cmake_modules/koreader_thirdparty_libs.cmake
@@ -87,6 +87,11 @@ declare_dependency(giflib::gif MONOLIBTIC gif)
 # harfbuzz
 declare_dependency(harfbuzz::harfbuzz INCLUDES freetype2 harfbuzz MONOLIBTIC harfbuzz)
 
+# lanes
+if(MONOLIBTIC)
+    declare_dependency(lanes::core LIBRARIES ${STAGING_DIR}/lib/lanes/core.a)
+endif()
+
 # libarchive
 declare_dependency(libarchive::libarchive MONOLIBTIC archive)
 
diff --git a/thirdparty/lanes/CMakeLists.txt b/thirdparty/lanes/CMakeLists.txt
new file mode 100644
index 000000000..98fc12e30
--- /dev/null
+++ b/thirdparty/lanes/CMakeLists.txt
@@ -0,0 +1,32 @@
+list(APPEND PATCH_FILES
+    # Fix inline shenanigans.
+    fix_debug_build.patch
+    # Allow compiling with `-fvisibility=hidden`.
+    visibility.patch
+)
+
+list(APPEND CMAKE_ARGS
+    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
+    -DBUILD_SHARED_LIBS=$<NOT:$<BOOL:${MONOLIBTIC}>>
+    # Project options.
+    -DANDROID=${ANDROID}
+)
+
+list(APPEND BUILD_CMD COMMAND ninja)
+
+append_install_commands(INSTALL_CMD ${SOURCE_DIR}/src/lanes.lua DESTINATION common)
+if(MONOLIBTIC)
+    append_install_commands(INSTALL_CMD core.a DESTINATION ${STAGING_DIR}/lib/lanes)
+else()
+    append_binary_install_command(INSTALL_CMD core.so DESTINATION common/lanes)
+endif()
+
+external_project(
+    DOWNLOAD GIT v3.17.1
+    https://github.com/LuaLanes/lanes.git
+    PATCH_FILES ${PATCH_FILES}
+    PATCH_OVERLAY overlay
+    CMAKE_ARGS ${CMAKE_ARGS}
+    BUILD_COMMAND ${BUILD_CMD}
+    INSTALL_COMMAND ${INSTALL_CMD}
+)
diff --git a/thirdparty/lanes/fix_debug_build.patch b/thirdparty/lanes/fix_debug_build.patch
new file mode 100644
index 000000000..869470ca7
--- /dev/null
+++ b/thirdparty/lanes/fix_debug_build.patch
@@ -0,0 +1,20 @@
+--- a/src/macros_and_utils.h
++++ b/src/macros_and_utils.h
+@@ -82,6 +82,7 @@
+ 
+ #define ASSERT_L(c) _ASSERT_L(L,c)
+ 
++__attribute__ ((always_inline))
+ inline void STACK_GROW(lua_State * L, int n_)
+ {
+     if (!lua_checkstack(L, n_))
+--- a/src/lanes_private.h
++++ b/src/lanes_private.h
+@@ -79,6 +79,7 @@
+ // 'Lane' are malloc/free'd and the handle only carries a pointer.
+ // This is not deep userdata since the handle's not portable among lanes.
+ //
++__attribute__ ((always_inline))
+ inline Lane* lua_toLane(lua_State* L, int i_)
+ {
+     return *(Lane**)(luaL_checkudata(L, i_, "Lane"));
diff --git a/thirdparty/lanes/overlay/CMakeLists.txt b/thirdparty/lanes/overlay/CMakeLists.txt
new file mode 100644
index 000000000..2c10ef442
--- /dev/null
+++ b/thirdparty/lanes/overlay/CMakeLists.txt
@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.17.5)
+project(lanes LANGUAGES C)
+
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+find_package(Threads REQUIRED)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(LuaJIT luajit REQUIRED IMPORTED_TARGET)
+
+if(BUILD_SHARED_LIBS)
+    add_library(core MODULE)
+else()
+    add_library(core STATIC)
+endif()
+set_target_properties(core PROPERTIES C_VISIBILITY_PRESET hidden PREFIX "")
+target_link_libraries(core PRIVATE PkgConfig::LuaJIT Threads::Threads m)
+if(ANDROID)
+    target_link_libraries(core PRIVATE log)
+endif()
+target_sources(core PRIVATE
+    src/lanes.c
+    src/cancel.c
+    src/compat.c
+    src/threading.c
+    src/tools.c
+    src/state.c
+    src/linda.c
+    src/deep.c
+    src/keeper.c
+    src/universe.c
+)
diff --git a/thirdparty/lanes/visibility.patch b/thirdparty/lanes/visibility.patch
new file mode 100644
index 000000000..a0d51cbce
--- /dev/null
+++ b/thirdparty/lanes/visibility.patch
@@ -0,0 +1,22 @@
+--- a/src/deep.h
++++ b/src/deep.h
+@@ -18,7 +18,7 @@
+ #if (defined PLATFORM_WIN32) || (defined PLATFORM_POCKETPC)
+ #define LANES_API __declspec(dllexport)
+ #else
+-#define LANES_API
++#define LANES_API __attribute__ ((visibility("default")))
+ #endif // (defined PLATFORM_WIN32) || (defined PLATFORM_POCKETPC)
+ #endif // LANES_API
+ 
+--- a/src/lanes.h
++++ b/src/lanes.h
+@@ -7,7 +7,7 @@
+ #if (defined PLATFORM_WIN32) || (defined PLATFORM_POCKETPC)
+ #define LANES_API __declspec(dllexport)
+ #else
+-#define LANES_API
++#define LANES_API __attribute__ ((visibility("default")))
+ #endif // (defined PLATFORM_WIN32) || (defined PLATFORM_POCKETPC)
+ 
+ #define LANES_VERSION_MAJOR 3