diff --git a/Makefile b/Makefile
index 2358a8469..f8d8cefbf 100644
--- a/Makefile
+++ b/Makefile
@@ -16,8 +16,6 @@ all: $(OUTPUT_DIR)/libs $(if $(ANDROID),,$(LUAJIT)) \
 		$(OUTPUT_DIR)/plugins $(LUASOCKET) \
 		$(OUTPUT_DIR)/ffi $(OUTPUT_DIR)/data \
 		$(if $(WIN32),,$(LUASEC)) \
-		$(if $(ANDROID),$(LUACOMPAT52) $(LUALONGNUMBER),) \
-		$(if $(WIN32),,$(EVERNOTE_LIB)) \
 		$(TURBOJPEG_LIB) \
 		$(LODEPNG_LIB) \
 		$(GIF_LIB) \
@@ -54,7 +52,6 @@ ifeq ($(DO_STRIP),1)
 		$(if $(or $(KOBO),$(POCKETBOOK),$(REMARKABLE)),$(OUTPUT_DIR)/fbdepth,) \
 		$(if $(or $(CERVANTES),$(KINDLE),$(KOBO),$(POCKETBOOK),$(REMARKABLE),$(SONY_PRSTUX)),$(OUTPUT_DIR)/zsync2,) \
 		$(if $(ANDROID),,$(LUAJIT)) \
-		$(OUTPUT_DIR)/plugins/evernote.koplugin/lib/$(if $(WIN32),*.dll,*.so*) \
 		$(OUTPUT_DIR)/rocks/lib/lua/5.1/$(if $(WIN32),*.dll,*.so*) \
 		$(OUTPUT_DIR)/libs/$(if $(WIN32),*.dll,*.so*)" ;\
 	$(STRIP) --strip-unneeded $${STRIP_FILES} ;\
@@ -63,14 +60,8 @@ ifeq ($(DO_STRIP),1)
 		xargs $(STRIP) --strip-unneeded
 endif
 	# set up some needed paths and links
-	install -d $(OUTPUT_DIR)/{cache,history,clipboard,fonts} $(CURDIR)/$(EVERNOTE_THRIFT_DIR)
+	install -d $(OUTPUT_DIR)/{cache,history,clipboard,fonts}
 	ln -sf $(CURDIR)/$(THIRDPARTY_DIR)/kpvcrlib/cr3.css $(OUTPUT_DIR)/data/
-ifndef DARWIN
-	# setup Evernote SDK
-	cd $(EVERNOTE_SDK_DIR) && \
-		$(RCP) *.lua evernote $(CURDIR)/$(EVERNOTE_PLUGIN_DIR) && \
-		cp thrift/*.lua $(CURDIR)/$(EVERNOTE_THRIFT_DIR)
-endif
 	test -e $(LPEG_RE) && chmod 664 $(LPEG_RE) || true  # hot fix re.lua permission
 
 $(OUTPUT_DIR)/libs:
diff --git a/Makefile.defs b/Makefile.defs
index dab70f893..f1c9620ee 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -828,18 +828,6 @@ LUASEC_DIR=$(CURDIR)/$(LUASEC_BUILD_DIR)/luasec-prefix/src/luasec
 LUASOCKET=$(OUTPUT_DIR)/common/socket
 LUASEC=$(OUTPUT_DIR)/common/ssl
 
-EVERNOTE_SDK_BUILD_DIR=$(THIRDPARTY_DIR)/evernote-sdk-lua/build/$(MACHINE)
-EVERNOTE_SDK_DIR=$(CURDIR)/$(EVERNOTE_SDK_BUILD_DIR)/evernote-sdk-lua-prefix/src/evernote-sdk-lua
-EVERNOTE_PLUGIN_DIR=$(OUTPUT_DIR)/plugins/evernote.koplugin
-EVERNOTE_THRIFT_DIR=$(EVERNOTE_PLUGIN_DIR)/thrift
-EVERNOTE_LIB=$(EVERNOTE_PLUGIN_DIR)/lib/libluasocket.so
-LUALONGNUMBER=$(CURDIR)/$(OUTPUT_DIR)/libs/liblualongnumber.so
-
-LUASERIAL_BUILD_DIR=$(THIRDPARTY_DIR)/lua-serialize/build/$(MACHINE)
-LUASERIAL_DIR=$(CURDIR)/$(LUASERIAL_BUILD_DIR)/lua-serialize-prefix/src/lua-serialize
-LUASERIAL_LIB=$(OUTPUT_DIR)/common/serialize.so
-LUACOMPAT52=$(CURDIR)/$(OUTPUT_DIR)/libs/libluacompat52.so
-
 ZMQ_BUILD_DIR=$(THIRDPARTY_DIR)/libzmq/build/$(MACHINE)
 ZMQ_DIR=$(CURDIR)/$(ZMQ_BUILD_DIR)/libzmq-prefix/src/libzmq-build
 ZMQ_LIB_EXT=$(if $(WIN32),.dll,$(if $(DARWIN),.4.dylib,.so.4))
@@ -974,7 +962,7 @@ LPEG_DYNLIB=$(OUTPUT_DIR)/rocks/lib/lua/5.1/lpeg.so
 
 
 CMAKE_THIRDPARTY_LIBS := kpvcrlib,nanosvg,zstd
-CMAKE_THIRDPARTY_LIBS := $(CMAKE_THIRDPARTY_LIBS),evernote-sdk-lua,luajit,lpeg,turbo
+CMAKE_THIRDPARTY_LIBS := $(CMAKE_THIRDPARTY_LIBS),luajit,lpeg,turbo
 CMAKE_THIRDPARTY_LIBS := $(CMAKE_THIRDPARTY_LIBS),zyre,czmq,filemq,libzmq
 CMAKE_THIRDPARTY_LIBS := $(CMAKE_THIRDPARTY_LIBS),libk2pdfopt,tesseract,leptonica
 CMAKE_THIRDPARTY_LIBS := $(CMAKE_THIRDPARTY_LIBS),lj-wpaclient
diff --git a/Makefile.third b/Makefile.third
index 2190b787e..a5c0c541c 100644
--- a/Makefile.third
+++ b/Makefile.third
@@ -617,25 +617,6 @@ ifdef DARWIN
 		$(OUTPUT_DIR)/common/ssl.so
 endif
 
-$(LUASERIAL_LIB): $(THIRDPARTY_DIR)/lua-serialize/*.*
-	install -d $(LUASERIAL_BUILD_DIR)
-	-rm -f $(LUASERIAL_DIR)/../lua-serialize-stamp/lua-serialize-build
-	-rm -f $(LUASERIAL_LIB)
-	cd $(LUASERIAL_BUILD_DIR) && \
-		$(CMAKE) $(CMAKE_FLAGS) -DCC="$(CC) $(CFLAGS)" \
-		-DLDFLAGS="$(LDFLAGS) $(if $(or $(ANDROID),$(WIN32)), $(CURDIR)/$(LUAJIT_LIB),)" \
-		-DOUTPUT_DIR=$(CURDIR)/$(OUTPUT_DIR)/common \
-		$(CURDIR)/$(THIRDPARTY_DIR)/lua-serialize && \
-		$(CMAKE_MAKE_PROGRAM) $(CMAKE_MAKE_PROGRAM_FLAGS)
-
-# NOTE: We don't ship lua-serialize anymore, but the Evernote plugin still requires this.
-#       Both it and lua-serialize build an horribly outdated version of it.
-# FIXME: Someone who actually cares about this probably ought to bump the submodule.
-#        Ideally, in evernote-sdk-lua, since we control it, and update this to keep Evernote's copy,
-#        like LUALONGNUMBER does.
-$(LUACOMPAT52): $(LUASERIAL_LIB) $(THIRDPARTY_DIR)/lua-serialize/CMakeLists.txt
-	cp $(OUTPUT_DIR)/common/$(notdir $(LUACOMPAT52)) $(OUTPUT_DIR)/libs
-
 # zeromq should be compiled without optimization in clang 3.4
 # which otherwise may throw a warning saying "array index is past the end
 # of the array" for strcmp comparing a string with exactly 2 chars.
@@ -756,21 +737,6 @@ $(LPEG_DYNLIB) $(LPEG_RE): $(LUAJIT_LIB) $(THIRDPARTY_DIR)/lpeg/*.*
 	cp -f $(LPEG_DIR)/lpeg.so $(OUTPUT_DIR)/rocks/lib/lua/5.1
 	cp -f $(LPEG_DIR)/re.lua $(OUTPUT_DIR)/rocks/share/lua/5.1
 
-$(EVERNOTE_LIB): $(THIRDPARTY_DIR)/evernote-sdk-lua/*.*
-	install -d $(EVERNOTE_SDK_BUILD_DIR)
-	-rm -f $(EVERNOTE_LIB) $(EVERNOTE_SDK_DIR)/../evernote-sdk-lua-stamp/evernote-sdk-lua-build
-	cd $(EVERNOTE_SDK_BUILD_DIR) && \
-		$(CMAKE) $(CMAKE_FLAGS) -DCC="$(CC) $(CFLAGS)" \
-		-DOUTPUT_DIR="$(CURDIR)/$(EVERNOTE_PLUGIN_DIR)/lib" \
-		-DLDFLAGS="$(LDFLAGS) $(if $(or $(ANDROID),$(WIN32)),$(CURDIR)/$(LUAJIT_LIB) -lm)" \
-		-DDYNLIB_CFLAGS="$(DYNLIB_CMAKE_CFLAGS)" \
-		$(CURDIR)/$(THIRDPARTY_DIR)/evernote-sdk-lua && \
-		$(CMAKE_MAKE_PROGRAM) $(CMAKE_MAKE_PROGRAM_FLAGS)
-
-$(LUALONGNUMBER): $(EVERNOTE_LIB) $(THIRDPARTY_DIR)/evernote-sdk-lua/*.*
-	cp $(CURDIR)/$(EVERNOTE_PLUGIN_DIR)/lib/liblualongnumber.so \
-		$(CURDIR)/$(OUTPUT_DIR)/libs
-
 $(SQLITE_LIB): $(THIRDPARTY_DIR)/sqlite/*.*
 	install -d $(SQLITE_BUILD_DIR)
 	cd $(SQLITE_BUILD_DIR) && \
diff --git a/thirdparty/evernote-sdk-lua/CMakeLists.txt b/thirdparty/evernote-sdk-lua/CMakeLists.txt
deleted file mode 100644
index 221c604ea..000000000
--- a/thirdparty/evernote-sdk-lua/CMakeLists.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-project(evernote-sdk-lua)
-cmake_minimum_required(VERSION 3.5.1)
-
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../cmake_modules")
-include("koreader_thirdparty_common")
-include("koreader_thirdparty_git")
-
-enable_language(C)
-
-ep_get_source_dir(SOURCE_DIR)
-assert_var_defined(CC)
-assert_var_defined(OUTPUT_DIR)
-assert_var_defined(LDFLAGS)
-
-set(BUILD_CMD sh -c "${KO_MAKE_RECURSIVE} -j1 -C thrift CC=\"${CC}\" LDFLAGS=\"${LDFLAGS}\" DYNLIB_CFLAGS=\"${DYNLIB_CFLAGS}\" OUTPUT_DIR=${OUTPUT_DIR}")
-
-ko_write_gitclone_script(
-    GIT_CLONE_SCRIPT_FILENAME
-    https://github.com/koreader/evernote-sdk-lua
-    5267d2a6c2505a8c33d4b99fec526afd910a23bd
-    ${SOURCE_DIR}
-)
-
-include(ExternalProject)
-ExternalProject_Add(
-    ${PROJECT_NAME}
-    DOWNLOAD_COMMAND ${CMAKE_COMMAND} -P ${GIT_CLONE_SCRIPT_FILENAME}
-    BUILD_IN_SOURCE 1
-    # skip configure
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND ${BUILD_CMD}
-    # skip install
-    INSTALL_COMMAND ""
-)
diff --git a/thirdparty/lua-serialize/CMakeLists.txt b/thirdparty/lua-serialize/CMakeLists.txt
deleted file mode 100644
index a5b73ceb7..000000000
--- a/thirdparty/lua-serialize/CMakeLists.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-project(lua-serialize)
-cmake_minimum_required(VERSION 3.5.1)
-
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_LIST_DIR}/../cmake_modules")
-include("koreader_thirdparty_common")
-include("koreader_thirdparty_git")
-
-enable_language(C)
-
-assert_var_defined(LDFLAGS)
-assert_var_defined(OUTPUT_DIR)
-
-ep_get_source_dir(SOURCE_DIR)
-
-set(PATCH_CMD "${KO_PATCH} ${CMAKE_CURRENT_SOURCE_DIR}/lua-serialize-lto.patch")
-
-set(BUILD_CMD sh -c "${KO_MAKE_RECURSIVE} -j1 CC=\"${CC}\" LDFLAGS=\"${LDFLAGS}\" OUTPUT_DIR=\"${OUTPUT_DIR}\"")
-
-ko_write_gitclone_script(
-    GIT_CLONE_SCRIPT_FILENAME
-    https://github.com/koreader/lua-serialize
-    decd0f171cb61f3919d2441a3f0d9b3174b951e2
-    ${SOURCE_DIR}
-)
-
-include(ExternalProject)
-ExternalProject_Add(
-    ${PROJECT_NAME}
-    DOWNLOAD_COMMAND ${CMAKE_COMMAND} -P ${GIT_CLONE_SCRIPT_FILENAME}
-    PATCH_COMMAND COMMAND ${PATCH_CMD}
-    BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND ${BUILD_CMD}
-    # skip install
-    INSTALL_COMMAND ""
-)
diff --git a/thirdparty/lua-serialize/lua-serialize-lto.patch b/thirdparty/lua-serialize/lua-serialize-lto.patch
deleted file mode 100644
index d4562f293..000000000
--- a/thirdparty/lua-serialize/lua-serialize-lto.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-diff --git a/Makefile b/Makefile
-index 68cabaf..e43dea0 100644
---- a/Makefile
-+++ b/Makefile
-@@ -9,7 +9,7 @@ COMPAT_DIR=lua-compat-5.2
- SRCS=$(wildcard $(SRC_DIR)/*.c)
- OBJS=$(SRCS:%.c=%.o)
- 
--CFLAGS=-I$(LUA_DIR)/src -I$(COMPAT_DIR)/c-api -shared -fPIC
-+LUA_CFLAGS:= -I$(LUA_DIR)/src -I$(COMPAT_DIR)/c-api -shared -fPIC
- 
- ifndef DARWIN
- 	CFLAGS+= -Wl,-E -Wl,-rpath,'$$ORIGIN'
-@@ -38,8 +38,8 @@ LIBSERIALIZE=$(OUTPUT_DIR)/serialize.$(if $(WIN32),dll,so)
- libs: $(LIBLUACOMPAT52) $(LIBSERIALIZE)
- 
- $(LIBLUACOMPAT52): $(COMPAT_DIR)/c-api/compat-5.2.c $(LUA_DIR)
--	$(CC) $(CFLAGS) -o $@ $< -L$(OUTPUT_DIR) $(LDFLAGS)
-+	$(CC) $(CFLAGS) $(LUA_CFLAGS) -o $@ $< $(LDFLAGS) -L$(OUTPUT_DIR)
- 
- $(LIBSERIALIZE): $(SRC_DIR)/serialize.c $(LUA_DIR)
--	$(CC) $(CFLAGS) -o $@ $< -lluacompat52 -L$(OUTPUT_DIR) $(LDFLAGS)
-+	$(CC) $(CFLAGS) $(LUA_CFLAGS) -o $@ $< $(LDFLAGS) -lluacompat52 -L$(OUTPUT_DIR)
-