diff --git a/.github/workflows/platform_natives.yaml b/.github/workflows/platform_natives.yaml
index e2824dd..408246d 100644
--- a/.github/workflows/platform_natives.yaml
+++ b/.github/workflows/platform_natives.yaml
@@ -12,22 +12,22 @@ jobs:
     strategy:
       matrix:
         include:
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/386", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/386", implementation: "tdlib"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/amd64", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/amd64", implementation: "tdlib"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/armhf", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/armhf", implementation: "tdlib"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/arm64", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/arm64", implementation: "tdlib"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/s390x", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/s390x", implementation: "tdlib"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/ppc64le", implementation: "tdlight"}
-        - {os: ubuntu-20.04, usedocker: "false", arch: "linux/ppc64le", implementation: "tdlib"}
-        - {os: windows-2019, usedocker: "false", arch: "amd64", implementation: "tdlight", vcpkgCommitId: "30124253eecff36bc90f73341edbfb4f845e2a1e", triplet: "x64-windows-static"}
-        - {os: windows-2019, usedocker: "false", arch: "amd64", implementation: "tdlib", vcpkgCommitId: "30124253eecff36bc90f73341edbfb4f845e2a1e", triplet: "x64-windows-static"}
-        - {os: macos-10.15, usedocker: "false", arch: "amd64", implementation: "tdlight"}
-        - {os: macos-10.15, usedocker: "false", arch: "amd64", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/386", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/386", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/amd64", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/amd64", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/armhf", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/armhf", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/arm64", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/arm64", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/s390x", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/s390x", implementation: "tdlib"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/ppc64le", implementation: "tdlight"}
+        - {os: ubuntu-20.04, usedocker: "true", useqemu: "false", arch: "linux/ppc64le", implementation: "tdlib"}
+        - {os: windows-2019, usedocker: "false", useqemu: "false", arch: "amd64", implementation: "tdlight", vcpkgCommitId: "30124253eecff36bc90f73341edbfb4f845e2a1e", triplet: "x64-windows-static"}
+        - {os: windows-2019, usedocker: "false", useqemu: "false", arch: "amd64", implementation: "tdlib", vcpkgCommitId: "30124253eecff36bc90f73341edbfb4f845e2a1e", triplet: "x64-windows-static"}
+        - {os: macos-10.15, usedocker: "false", useqemu: "false", arch: "amd64", implementation: "tdlight"}
+        - {os: macos-10.15, usedocker: "false", useqemu: "false", arch: "amd64", implementation: "tdlib"}
     steps:
       - name: Checkout current repo
         uses: actions/checkout@v2
@@ -69,7 +69,7 @@ jobs:
           cat $GITHUB_ENV > github.env
 
       - name: Set up QEMU
-        if: matrix.usedocker == 'true'
+        if: matrix.usedocker == 'true' && matrix.useqemu == 'true'
         uses: docker/setup-qemu-action@v1
 
       - name: Set up Docker Buildx
@@ -93,7 +93,7 @@ jobs:
           file: ./Dockerfile
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
-          platforms: ${{ matrix.arch }}
+          platforms: linux/amd64
           push: false
           load: true
           tags: |
diff --git a/Dockerfile b/Dockerfile
index 6b124c2..fd71c46 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,15 +12,14 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 RUN apt update && apt upgrade -y
 
-RUN apt install -y sudo openjdk-11-jdk locales
-#RUN apt install -y make git zlib1g-dev libssl-dev gperf cmake clang-10 libc++-10-dev libc++abi-10-dev ccache maven python3 python3-pip php7.4-cli openjdk-15-jdk
+RUN apt install -y sudo build-essential openjdk-11-jdk locales wget cmake gperf ccache maven
 
 RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
     dpkg-reconfigure --frontend=noninteractive locales && \
     update-locale LANG=en_US.UTF-8
 
-ENV LANG en_US.UTF-8
-ENV JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
+ENV LANG "en_US.UTF-8"
+ENV JAVA_TOOL_OPTIONS "-Dfile.encoding=UTF8"
 
 ADD implementations /usr/src/tdlight-java-natives/implementations
 ADD scripts /usr/src/tdlight-java-natives/scripts
@@ -28,7 +27,7 @@ ADD src /usr/src/tdlight-java-natives/src
 
 WORKDIR /usr/src/tdlight-java-natives/
 
-RUN /bin/bash -c "export JAVA_HOME=\"/usr/lib/jvm/$(ls /usr/lib/jvm/ | grep openjdk | head -n 1)/\"; export JAVA_INCLUDE_PATH=\"$JAVA_HOME/include\"; source ./scripts/continuous-integration/github-workflows/setup-variables.sh; source ./scripts/continuous-integration/github-workflows/install-dependencies.sh; source ./scripts/continuous-integration/github-workflows/build-natives.sh"
+RUN /bin/bash /usr/src/tdlight-java-natives/scripts/continuous-integration/docker/build-natives.sh
 
 #WORKDIR /usr/src/tdlight-java-natives/generated/
 #RUN echo "aaaa" > test.txt
diff --git a/scripts/continuous-integration/docker/build-natives.sh b/scripts/continuous-integration/docker/build-natives.sh
new file mode 100644
index 0000000..7bcb5e3
--- /dev/null
+++ b/scripts/continuous-integration/docker/build-natives.sh
@@ -0,0 +1,13 @@
+#!/bin/bash -e
+export JAVA_HOME
+JAVA_HOME="$(find "/usr/lib/jvm/" -maxdepth 1 -type d -iname "java*jdk*" | head -n 1)/"
+export JAVA_INCLUDE_PATH="$JAVA_HOME/include"
+source ./scripts/continuous-integration/github-workflows/setup-variables.sh
+# Check variables correctness
+if [ -z "${CPU_ARCH_DPKG}" ]; then
+	echo "Missing parameter: CPU_ARCH_DPKG"
+	exit 1
+fi
+source ./scripts/continuous-integration/github-workflows/install-dependencies.sh
+sudo apt install -y "crossbuild-essential-${CPU_ARCH_DPKG}"
+source ./scripts/continuous-integration/github-workflows/build-natives.sh
diff --git a/scripts/core/install-dependencies.sh b/scripts/core/install-dependencies.sh
index 841456d..5552a15 100755
--- a/scripts/core/install-dependencies.sh
+++ b/scripts/core/install-dependencies.sh
@@ -63,66 +63,50 @@ if [[ "$OPERATING_SYSTEM_NAME" == "linux" ]]; then
   if [[ ! -f "$CROSS_BUILD_DEPS_DIR/ok-012" ]]; then
     rm -rf "$CROSS_BUILD_DEPS_DIR" || true
     mkdir -p "$CROSS_BUILD_DEPS_DIR"
-    echo "
-deb [arch=amd64,i386] http://us.archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
-deb [arch=amd64,i386] http://us.archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
-deb [arch=amd64,i386] http://us.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
-deb [arch=amd64,i386] http://security.ubuntu.com/ubuntu focal-security main restricted universe multiverse
-
-deb [arch=arm64,armhf,ppc64el,s390x] http://ports.ubuntu.com/ubuntu-ports/ focal main restricted universe multiverse
-deb [arch=arm64,armhf,ppc64el,s390x] http://ports.ubuntu.com/ubuntu-ports/ focal-updates main restricted universe multiverse
-deb [arch=arm64,armhf,ppc64el,s390x] http://ports.ubuntu.com/ubuntu-ports/ focal-backports main restricted universe multiverse
-deb [arch=arm64,armhf,ppc64el,s390x] http://ports.ubuntu.com/ubuntu-ports/ focal-security main restricted universe multiverse
-" | sudo tee /etc/apt/sources.list
-    sudo dpkg --add-architecture "${CPU_ARCH_DPKG}"
-    sudo apt-get update || true
-    sudo apt-get install -y openjdk-8-jdk
-    sudo apt-get install -y "libstdc++-8-dev-${CPU_ARCH_DPKG}-cross" "libstdc++-8-pic-${CPU_ARCH_DPKG}-cross"
-    sudo apt-get install -y "crossbuild-essential-${CPU_ARCH_DPKG}"
     cd "$CROSS_BUILD_DEPS_DIR"
     # LibZ-Dev
-    apt-get download "zlib1g-dev:${CPU_ARCH_DPKG}"
-    ZLIB1G_DEV_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "zlib1g-dev*.deb" | head -n 1)"
+    wget "http://ftp.debian.org/debian/pool/main/z/zlib/zlib1g-dev_1.2.11.dfsg-1_${CPU_ARCH_DPKG}.deb" -O zlib1g-dev.deb
+    ZLIB1G_DEV_DEB=zlib1g-dev.deb
     dpkg -x "$ZLIB1G_DEV_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$ZLIB1G_DEV_DEB"
     # LibZ
-    apt-get download "zlib1g:${CPU_ARCH_DPKG}"
-    ZLIB1G_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "zlib1g*.deb" | head -n 1)"
+    wget "http://ftp.debian.org/debian/pool/main/z/zlib/zlib1g_1.2.11.dfsg-1_${CPU_ARCH_DPKG}.deb" -O zlib1g.deb
+    ZLIB1G_DEB=zlib1g.deb
     dpkg -x "$ZLIB1G_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$ZLIB1G_DEB"
     # LibSSL-Dev
-    apt-get download "libssl-dev:${CPU_ARCH_DPKG}"
-    LIBSSL_DEV_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "libssl-dev*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openssl/libssl-dev_1.1.1d-0+deb10u7_${CPU_ARCH_DPKG}.deb" -O libssl-dev.deb
+    LIBSSL_DEV_DEB=libssl-dev.deb
     dpkg -x "$LIBSSL_DEV_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$LIBSSL_DEV_DEB"
     # LibSSL
-    apt-get download "libssl1.1:${CPU_ARCH_DPKG}"
-    LIBSSL_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "libssl1.1*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openssl/libssl1.1_1.1.1d-0+deb10u7_${CPU_ARCH_DPKG}.deb" -O libssl.deb
+    LIBSSL_DEB=libssl.deb
     dpkg -x "$LIBSSL_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$LIBSSL_DEB"
     # Java Common
-    apt-get download "java-common"
-    JC_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "java-common*.deb" | head -n 1)"
+    wget "http://ftp.debian.org/debian/pool/main/j/java-common/java-common_0.71_all.deb" -O java-common.deb
+    JC_DEB=java-common.deb
     dpkg -x "$JC_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$JC_DEB"
     # OpenJDK-JRE-Headless
-    apt-get download "openjdk-8-jre-headless:${CPU_ARCH_DPKG}"
-    OJDKRH_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "openjdk-8-jre-headless*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openjdk-11/openjdk-11-jre-headless_11.0.12+7-2~deb10u1_${CPU_ARCH_DPKG}.deb" -O jdk-11-jre-headless.deb
+    OJDKRH_DEB=jdk-11-jre-headless.deb
     dpkg -x "$OJDKRH_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$OJDKRH_DEB"
     # OpenJDK-JRE
-    apt-get download "openjdk-8-jre:${CPU_ARCH_DPKG}"
-    OJDKR_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "openjdk-8-jre*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openjdk-11/openjdk-11-jre_11.0.12+7-2~deb10u1_${CPU_ARCH_DPKG}.deb" -O jdk-11-jre.deb
+    OJDKR_DEB=jdk-11-jre.deb
     dpkg -x "$OJDKR_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$OJDKR_DEB"
     # OpenJDK-JDK
-    apt-get download "openjdk-8-jdk-headless:${CPU_ARCH_DPKG}"
-    OJDKJ_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "openjdk-8-jdk-headless*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openjdk-11/openjdk-11-jdk-headless_11.0.12+7-2~deb10u1_${CPU_ARCH_DPKG}.deb" -O jdk-11-jdk-headless.deb
+    OJDKJ_DEB=jdk-11-jdk-headless.deb
     dpkg -x "$OJDKJ_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$OJDKJ_DEB"
     # OpenJDK-GUI
-    apt-get download "openjdk-8-jdk:${CPU_ARCH_DPKG}"
-    OJDKG_DEB="$(find "$CROSS_BUILD_DEPS_DIR" -maxdepth 1 -type f -iname "openjdk-8-jdk*.deb" | head -n 1)"
+    wget "http://security.debian.org/debian-security/pool/updates/main/o/openjdk-11/openjdk-11-jdk_11.0.12+7-2~deb10u1_${CPU_ARCH_DPKG}.deb" -O jdk-11-jdk.deb
+    OJDKG_DEB=jdk-11-jdk.deb
     dpkg -x "$OJDKG_DEB" "$CROSS_BUILD_DEPS_DIR"
     rm "$OJDKG_DEB"
 
@@ -152,22 +136,22 @@ deb [arch=arm64,armhf,ppc64el,s390x] http://ports.ubuntu.com/ubuntu-ports/ focal
     echo "set(CMAKE_ASM_COMPILER_TARGET ${CLANG_TRIPLE})";
     echo "set(CMAKE_LIBRARY_PATH \"$CROSS_BUILD_DEPS_DIR/\")";
     echo "include_directories(\"${CROSS_BUILD_DEPS_DIR}/usr/include/${CPU_ARCH_LINUX}-linux-${CPU_COMPILATION_TOOL}/\")";
-    echo "SET(CMAKE_FIND_ROOT_PATH \"$CROSS_BUILD_DEPS_DIR\" \"$JAVA_HOME\" \"/\" \"/usr/lib/jvm/java-8-openjdk-amd64/include\")";
+    echo "SET(CMAKE_FIND_ROOT_PATH \"$CROSS_BUILD_DEPS_DIR\" \"$JAVA_HOME\" \"/\" \"/usr/lib/jvm/java-11-openjdk-amd64/include\")";
     echo "include_directories(\"${CROSS_OPENJDK_PATH}/include\")";
     echo "include_directories(\"${CROSS_OPENJDK_PATH}/include/linux\")";
 
-    echo "SET(JAVA_HOME \"/usr/lib/jvm/java-8-openjdk-amd64/\")";
-    echo "SET(JAVA_INCLUDE_PATH \"/usr/lib/jvm/java-8-openjdk-amd64/include\")";
-    echo "SET(JAVA_AWT_INCLUDE_PATH \"/usr/lib/jvm/java-8-openjdk-amd64/include\")";
-    echo "SET(JAVA_INCLUDE_PATH2 \"/usr/lib/jvm/java-8-openjdk-amd64/include/linux\")";
-    #echo "SET(JAVA_JVM_LIBRARY \"/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/${JAVA_INSTALLATION_TYPE}/libjvm.so\")";
-    #echo "SET(JAVA_AWT_LIBRARY \"/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/libawt.so\")";
+    echo "SET(JAVA_HOME \"/usr/lib/jvm/java-11-openjdk-amd64/\")";
+    echo "SET(JAVA_INCLUDE_PATH \"/usr/lib/jvm/java-11-openjdk-amd64/include\")";
+    echo "SET(JAVA_AWT_INCLUDE_PATH \"/usr/lib/jvm/java-11-openjdk-amd64/include\")";
+    echo "SET(JAVA_INCLUDE_PATH2 \"/usr/lib/jvm/java-11-openjdk-amd64/include/linux\")";
+    #echo "SET(JAVA_JVM_LIBRARY \"/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/amd64/${JAVA_INSTALLATION_TYPE}/libjvm.so\")";
+    #echo "SET(JAVA_AWT_LIBRARY \"/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/amd64/libawt.so\")";
 
     #echo "SET(JAVA_HOME \"$CROSS_OPENJDK_PATH\")";
     #echo "SET(JAVA_INCLUDE_PATH \"$CROSS_OPENJDK_PATH/include\")";
     #echo "SET(JAVA_INCLUDE_PATH2 \"$CROSS_OPENJDK_PATH/include/linux\")";
-    echo "SET(JAVA_JVM_LIBRARY \"$CROSS_OPENJDK_PATH/jre/lib/${CPU_ARCH_JAVA_INTERNAL}/${JAVA_INSTALLATION_TYPE}/libjvm.so\")";
-    echo "SET(JAVA_AWT_LIBRARY \"$CROSS_OPENJDK_PATH/jre/lib/${CPU_ARCH_JAVA_INTERNAL}/libawt.so\")";
+    echo "SET(JAVA_JVM_LIBRARY \"$CROSS_OPENJDK_PATH/lib/${JAVA_INSTALLATION_TYPE}/libjvm.so\")";
+    echo "SET(JAVA_AWT_LIBRARY \"$CROSS_OPENJDK_PATH/lib/libawt.so\")";
     #echo "SET(JNI_INCLUDE_DIRS \"$CROSS_OPENJDK_PATH/include\" \"$CROSS_OPENJDK_PATH/include/linux\")";
     #echo "SET(Java_JAR_EXECUTABLE \"$CROSS_OPENJDK_PATH/bin/java\")";
     #echo "SET(Java_JAVAC_EXECUTABLE \"$CROSS_OPENJDK_PATH/bin/javac\")";
diff --git a/scripts/core/setup-variables.sh b/scripts/core/setup-variables.sh
index 6ab9280..0b57997 100755
--- a/scripts/core/setup-variables.sh
+++ b/scripts/core/setup-variables.sh
@@ -21,7 +21,7 @@ if [[ "$CORE_VARIABLES_SET" != "YES" ]]; then
   elif [[ "$CPU_ARCHITECTURE_NAME" == "armhf" ]]; then
     export CPU_ARCH_JAVA="armhf"
     export CPU_ARCH_JAVA_INTERNAL="arm"
-    export JAVA_INSTALLATION_TYPE="client"
+    export JAVA_INSTALLATION_TYPE="server"
     export CPU_ARCH_DPKG="armhf"
     export CPU_ARCH_CMAKE="arm"
     export CPU_ARCH_LINUX="arm"