diff --git a/.circleci/Dockerfile b/.circleci/Dockerfile
index 2058753427..6959bfbc10 100644
--- a/.circleci/Dockerfile
+++ b/.circleci/Dockerfile
@@ -1,3 +1,4 @@
+ARG ndk_version=android-ndk-r19-beta2
 FROM circleci/android:api-28-ndk
 
 RUN \
diff --git a/README.md b/README.md
index 07b5093696..fe053081cf 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ A [shadowsocks](http://shadowsocks.org) client for Android, written in Kotlin.
 * JDK 1.8
 * Go 1.11+
 * Android SDK
-  - Android NDK r16+
+  - Android NDK r19+
 
 ### BUILD
 
diff --git a/core/build.gradle b/core/build.gradle
index 05cd27a9ad..b9ecf75658 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -18,7 +18,7 @@ android {
 
         externalNativeBuild {
             ndkBuild {
-                abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86'
+                abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
                 arguments "-j${Runtime.runtime.availableProcessors()}"
             }
         }
diff --git a/core/src/overture/clean.bash b/core/src/overture/clean.bash
index 874525aac6..3fc29bcaff 100755
--- a/core/src/overture/clean.bash
+++ b/core/src/overture/clean.bash
@@ -1,10 +1,8 @@
 #!/bin/bash
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-DEPS=$DIR/.deps
 
-rm -rf $DEPS
-rm -rf $DIR/go/bin
+rm -rf $DIR/.deps
 rm -rf $DIR/bin
 
 echo "Successfully clean overture"
diff --git a/core/src/overture/make.bash b/core/src/overture/make.bash
index aaaade7d24..e46fe52184 100755
--- a/core/src/overture/make.bash
+++ b/core/src/overture/make.bash
@@ -5,49 +5,18 @@ function try () {
 }
 
 [ -z "$ANDROID_NDK_HOME" ] && ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle
+TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 MIN_API=$1
 TARGET=$DIR/bin
-DEPS=$DIR/.deps
 
-ANDROID_ARM_TOOLCHAIN=$DEPS/android-toolchain-${MIN_API}-arm
-ANDROID_ARM64_TOOLCHAIN=$DEPS/android-toolchain-${MIN_API}-arm64
-ANDROID_X86_TOOLCHAIN=$DEPS/android-toolchain-${MIN_API}-x86
-
-ANDROID_ARM_CC=$ANDROID_ARM_TOOLCHAIN/bin/arm-linux-androideabi-clang
-ANDROID_ARM_STRIP=$ANDROID_ARM_TOOLCHAIN/bin/arm-linux-androideabi-strip
-
-ANDROID_ARM64_CC=$ANDROID_ARM64_TOOLCHAIN/bin/aarch64-linux-android-clang
-ANDROID_ARM64_STRIP=$ANDROID_ARM64_TOOLCHAIN/bin/aarch64-linux-android-strip
-
-ANDROID_X86_CC=$ANDROID_X86_TOOLCHAIN/bin/i686-linux-android-clang
-ANDROID_X86_STRIP=$ANDROID_X86_TOOLCHAIN/bin/i686-linux-android-strip
-
-try mkdir -p $DEPS $TARGET/armeabi-v7a $TARGET/x86 $TARGET/arm64-v8a
-
-if [ ! -f "$ANDROID_ARM_CC" ]; then
-    echo "Make standalone toolchain for ARM arch"
-    $ANDROID_NDK_HOME/build/tools/make_standalone_toolchain.py --arch arm \
-        --api $MIN_API --install-dir $ANDROID_ARM_TOOLCHAIN
-fi
-
-if [ ! -f "$ANDROID_ARM64_CC" ]; then
-    echo "Make standalone toolchain for ARM64 arch"
-    $ANDROID_NDK_HOME/build/tools/make_standalone_toolchain.py --arch arm64 \
-        --api $MIN_API --install-dir $ANDROID_ARM64_TOOLCHAIN
-fi
-
-if [ ! -f "$ANDROID_X86_CC" ]; then
-    echo "Make standalone toolchain for X86 arch"
-    $ANDROID_NDK_HOME/build/tools/make_standalone_toolchain.py --arch x86 \
-        --api $MIN_API --install-dir $ANDROID_X86_TOOLCHAIN
-fi
+try mkdir -p $TARGET/armeabi-v7a $TARGET/x86 $TARGET/arm64-v8a $TARGET/x86_64
 
 export GOPATH=$DIR
 
 if [ ! -f "$TARGET/armeabi-v7a/liboverture.so" ] || [ ! -f "$TARGET/arm64-v8a/liboverture.so" ] ||
-   [ ! -f "$TARGET/x86/liboverture.so" ]; then
+   [ ! -f "$TARGET/x86/liboverture.so" ] || [ ! -f "$TARGET/x86_64/liboverture.so" ]; then
 
     pushd $GOPATH/src/github.com/shadowsocks/overture/main
 
@@ -56,25 +25,32 @@ if [ ! -f "$TARGET/armeabi-v7a/liboverture.so" ] || [ ! -f "$TARGET/arm64-v8a/li
 
     echo "Cross compile overture for arm"
     if [ ! -f "$TARGET/armeabi-v7a/liboverture.so" ]; then
-        try env CGO_ENABLED=1 CC=$ANDROID_ARM_CC GOOS=android GOARCH=arm GOARM=7 go build -ldflags="-s -w"
-        try $ANDROID_ARM_STRIP main
+        try env CGO_ENABLED=1 CC=$TOOLCHAIN/armv7a-linux-androideabi${MIN_API}-clang GOOS=android GOARCH=arm GOARM=7 go build -ldflags="-s -w"
+        try $TOOLCHAIN/arm-linux-androideabi-strip main
         try mv main $TARGET/armeabi-v7a/liboverture.so
     fi
 
     echo "Cross compile overture for arm64"
     if [ ! -f "$TARGET/arm64-v8a/liboverture.so" ]; then
-        try env CGO_ENABLED=1 CC=$ANDROID_ARM64_CC GOOS=android GOARCH=arm64 go build -ldflags="-s -w"
-        try $ANDROID_ARM64_STRIP main
+        try env CGO_ENABLED=1 CC=$TOOLCHAIN/aarch64-linux-android${MIN_API}-clang GOOS=android GOARCH=arm64 go build -ldflags="-s -w"
+        try $TOOLCHAIN/aarch64-linux-android-strip main
         try mv main $TARGET/arm64-v8a/liboverture.so
     fi
 
-    echo "Cross compile overture for x86"
+    echo "Cross compile overture for 386"
     if [ ! -f "$TARGET/x86/liboverture.so" ]; then
-        try env CGO_ENABLED=1 CC=$ANDROID_X86_CC GOOS=android GOARCH=386 go build -ldflags="-s -w"
-        try $ANDROID_X86_STRIP main
+        try env CGO_ENABLED=1 CC=$TOOLCHAIN/i686-linux-android${MIN_API}-clang GOOS=android GOARCH=386 go build -ldflags="-s -w"
+        try $TOOLCHAIN/i686-linux-android-strip main
         try mv main $TARGET/x86/liboverture.so
     fi
 
+    echo "Cross compile overture for amd64"
+    if [ ! -f "$TARGET/x86_64/liboverture.so" ]; then
+        try env CGO_ENABLED=1 CC=$TOOLCHAIN/x86_64-linux-android${MIN_API}-clang GOOS=android GOARCH=amd64 go build -ldflags="-s -w"
+        try $TOOLCHAIN/x86_64-linux-android-strip main
+        try mv main $TARGET/x86_64/liboverture.so
+    fi
+
     popd
 
 fi
diff --git a/mobile/build.gradle b/mobile/build.gradle
index 40c7ad83f6..fb4f4d9ed1 100644
--- a/mobile/build.gradle
+++ b/mobile/build.gradle
@@ -43,8 +43,6 @@ android {
     splits {
         abi {
             enable true
-            reset()
-            include 'armeabi-v7a', 'arm64-v8a', 'x86'
             universalApk true
         }
     }
@@ -72,7 +70,7 @@ repositories {
 
 apply plugin: 'com.google.gms.google-services'
 
-ext.abiCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, x86: 3]
+ext.abiCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, x86: 3, x86_64: 4]
 if (getCurrentFlavor() == 'release') android.applicationVariants.all { variant ->
     variant.outputs.each { output ->
         def offset = project.ext.abiCodes.get(output.getFilter(OutputFile.ABI))
diff --git a/release.sh b/release.sh
index 9d4f1f5e6a..74203302fc 100755
--- a/release.sh
+++ b/release.sh
@@ -4,8 +4,10 @@ release=$1
 cp mobile/build/outputs/apk/release/mobile-armeabi-v7a-release.apk shadowsocks-armeabi-v7a-${release}.apk
 cp mobile/build/outputs/apk/release/mobile-arm64-v8a-release.apk shadowsocks-arm64-v8a-${release}.apk
 cp mobile/build/outputs/apk/release/mobile-x86-release.apk shadowsocks-x86-${release}.apk
+cp mobile/build/outputs/apk/release/mobile-x86_64-release.apk shadowsocks-x86_64-${release}.apk
 cp mobile/build/outputs/apk/release/mobile-universal-release.apk shadowsocks--universal-${release}.apk
 cp tv/build/outputs/apk/release/tv-armeabi-v7a-release.apk shadowsocks-tv-armeabi-v7a-${release}.apk
 cp tv/build/outputs/apk/release/tv-arm64-v8a-release.apk shadowsocks-tv-arm64-v8a-${release}.apk
 cp tv/build/outputs/apk/release/tv-x86-release.apk shadowsocks-tv-x86-${release}.apk
+cp tv/build/outputs/apk/release/tv-x86_64-release.apk shadowsocks-tv-x86_64-${release}.apk
 cp tv/build/outputs/apk/release/tv-universal-release.apk shadowsocks-tv--universal-${release}.apk
diff --git a/tv/build.gradle b/tv/build.gradle
index 892fd9cf11..456d2f762f 100644
--- a/tv/build.gradle
+++ b/tv/build.gradle
@@ -43,8 +43,6 @@ android {
     splits {
         abi {
             enable true
-            reset()
-            include 'armeabi-v7a', 'arm64-v8a', 'x86'
             universalApk true
         }
     }
@@ -61,7 +59,7 @@ dependencies {
 
 apply plugin: 'com.google.gms.google-services'
 
-ext.abiCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, x86: 3]
+ext.abiCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, x86: 3, x86_64: 4]
 if (getCurrentFlavor() == 'release') android.applicationVariants.all { variant ->
     variant.outputs.each { output ->
         def offset = project.ext.abiCodes.get(output.getFilter(OutputFile.ABI))