diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 000000000..ae0bd47ca
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,501 @@
+name: Linux.
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - '*.md'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '*.md'
+
+jobs:
+
+  linux:
+    name: Ubuntu 14.04
+    runs-on: ubuntu-latest
+    container: ubuntu:trusty
+
+    strategy:
+      matrix:
+        defines:
+          - ""
+
+    env:
+      GIT: "https://github.com"
+      QT: "5_12_5"
+      QT_PREFIX: "/usr/local/desktop-app/Qt-5.12.5"
+      OPENSSL_VER: "1_1_1"
+      OPENSSL_PREFIX: "/usr/local/desktop-app/openssl-1.1.1"
+      CMAKE_VER: "3.16.3"
+      UPLOAD_ARTIFACT: "false"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "1"
+      DOC_PATH: "docs/building-cmake.md"
+
+    steps:
+      - name: Get repository name.
+        run: echo ::set-env name=REPO_NAME::${GITHUB_REPOSITORY##*/}
+
+      - name: Clone.
+        uses: actions/checkout@v1
+        with:
+          submodules: recursive
+
+      - name: First set up.
+        run: |
+          cd ..
+          mv $REPO_NAME temp
+          mkdir $REPO_NAME
+          mv temp $REPO_NAME/$REPO_NAME
+          cd $REPO_NAME
+
+          sudo apt-get update
+          sudo apt-get install software-properties-common -y && \
+          sudo apt-get install git libexif-dev liblzma-dev libz-dev libssl-dev \
+          libappindicator-dev libicu-dev libdee-dev libdrm-dev dh-autoreconf \
+          autoconf automake build-essential libass-dev libfreetype6-dev \
+          libgpac-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev \
+          libvorbis-dev libenchant-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev \
+          libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libatspi2.0-dev \
+          libxcb-render-util0-dev libxcb-util0-dev libxcb-xkb-dev libxrender-dev \
+          libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev bison \
+          libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html yasm \
+          zlib1g-dev xutils-dev python-xcbgen chrpath gperf wget -y --force-yes && \
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \
+          sudo apt-get update && \
+          sudo apt-get install gcc-8 g++-8 -y && \
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 60 && \
+          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 60 && \
+          sudo update-alternatives --config gcc && \
+          sudo add-apt-repository --remove ppa:ubuntu-toolchain-r/test -y
+
+          gcc --version
+
+          gcc --version > CACHE_KEY.txt
+          echo $MANUAL_CACHING >> CACHE_KEY.txt
+          md5cache=$(md5sum CACHE_KEY.txt | cut -c -32)
+          echo ::set-env name=CACHE_KEY::$md5cache
+
+          mkdir -p Libraries
+          cd Libraries
+          echo ::set-env name=LibrariesPath::`pwd`
+
+      - name: Range-v3.
+        run: |
+          echo "Find necessary branch from doc."
+          cloneRange=$(grep -A 1 "range-v3" $REPO_NAME/$DOC_PATH | sed -n 1p)
+          cd $LibrariesPath
+          echo $cloneRange
+          eval $cloneRange
+
+      - name: Patches.
+        run: |
+          echo "Find necessary commit from doc."
+          checkoutCommit=$(grep -A 1 "cd patches" $REPO_NAME/$DOC_PATH | sed -n 2p)
+          cd $LibrariesPath
+          git clone $GIT/desktop-app/patches.git
+          cd patches
+          eval $checkoutCommit
+
+      - name: CMake.
+        run: |
+          cd $LibrariesPath
+
+          file=cmake-$CMAKE_VER-Linux-x86_64.sh
+          wget $GIT/Kitware/CMake/releases/download/v$CMAKE_VER/$file
+          sudo mkdir /opt/cmake
+          sudo sh $file --prefix=/opt/cmake --skip-license
+          sudo ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake
+
+          cmake --version
+
+      - name: Zlib.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/madler/zlib.git
+          cd zlib
+          ./configure
+          make -j$(nproc)
+          sudo make install
+
+      - name: Opus cache.
+        id: cache-opus
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.LibrariesPath }}/opus
+          key: ${{ runner.OS }}-opus-${{ env.CACHE_KEY }}
+      - name: Opus.
+        if: steps.cache-opus.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/xiph/opus
+          cd opus
+          git checkout v1.3
+          ./autogen.sh
+          ./configure
+          make -j$(nproc)
+      - name: Opus install.
+        run: |
+          cd $LibrariesPath/opus
+          sudo make install
+
+      - name: Libva.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/01org/libva.git
+          cd libva
+          ./autogen.sh --enable-static
+          make -j$(nproc)
+          sudo make install
+
+      - name: Libvdpau.
+        run: |
+          cd $LibrariesPath
+
+          git clone git://anongit.freedesktop.org/vdpau/libvdpau
+          cd libvdpau
+          git checkout libvdpau-1.2
+          ./autogen.sh --enable-static
+          make -j$(nproc)
+          sudo make install
+
+      - name: FFmpeg cache.
+        id: cache-ffmpeg
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.LibrariesPath }}/ffmpeg-cache
+          key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}
+      - name: FFmpeg build.
+        if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone --branch release/3.4 $GIT/FFmpeg/FFmpeg ffmpeg
+          cd ffmpeg
+          ./configure --prefix=$LibrariesPath/ffmpeg-cache \
+          --enable-protocol=file --enable-libopus \
+          --disable-programs \
+          --disable-doc \
+          --disable-network \
+          --disable-everything \
+          --enable-hwaccel=h264_vaapi \
+          --enable-hwaccel=h264_vdpau \
+          --enable-hwaccel=mpeg4_vaapi \
+          --enable-hwaccel=mpeg4_vdpau \
+          --enable-decoder=aac \
+          --enable-decoder=aac_at \
+          --enable-decoder=aac_fixed \
+          --enable-decoder=aac_latm \
+          --enable-decoder=aasc \
+          --enable-decoder=alac \
+          --enable-decoder=alac_at \
+          --enable-decoder=flac \
+          --enable-decoder=gif \
+          --enable-decoder=h264 \
+          --enable-decoder=h264_vdpau \
+          --enable-decoder=hevc \
+          --enable-decoder=mp1 \
+          --enable-decoder=mp1float \
+          --enable-decoder=mp2 \
+          --enable-decoder=mp2float \
+          --enable-decoder=mp3 \
+          --enable-decoder=mp3adu \
+          --enable-decoder=mp3adufloat \
+          --enable-decoder=mp3float \
+          --enable-decoder=mp3on4 \
+          --enable-decoder=mp3on4float \
+          --enable-decoder=mpeg4 \
+          --enable-decoder=mpeg4_vdpau \
+          --enable-decoder=msmpeg4v2 \
+          --enable-decoder=msmpeg4v3 \
+          --enable-decoder=opus \
+          --enable-decoder=pcm_alaw \
+          --enable-decoder=pcm_alaw_at \
+          --enable-decoder=pcm_f32be \
+          --enable-decoder=pcm_f32le \
+          --enable-decoder=pcm_f64be \
+          --enable-decoder=pcm_f64le \
+          --enable-decoder=pcm_lxf \
+          --enable-decoder=pcm_mulaw \
+          --enable-decoder=pcm_mulaw_at \
+          --enable-decoder=pcm_s16be \
+          --enable-decoder=pcm_s16be_planar \
+          --enable-decoder=pcm_s16le \
+          --enable-decoder=pcm_s16le_planar \
+          --enable-decoder=pcm_s24be \
+          --enable-decoder=pcm_s24daud \
+          --enable-decoder=pcm_s24le \
+          --enable-decoder=pcm_s24le_planar \
+          --enable-decoder=pcm_s32be \
+          --enable-decoder=pcm_s32le \
+          --enable-decoder=pcm_s32le_planar \
+          --enable-decoder=pcm_s64be \
+          --enable-decoder=pcm_s64le \
+          --enable-decoder=pcm_s8 \
+          --enable-decoder=pcm_s8_planar \
+          --enable-decoder=pcm_u16be \
+          --enable-decoder=pcm_u16le \
+          --enable-decoder=pcm_u24be \
+          --enable-decoder=pcm_u24le \
+          --enable-decoder=pcm_u32be \
+          --enable-decoder=pcm_u32le \
+          --enable-decoder=pcm_u8 \
+          --enable-decoder=pcm_zork \
+          --enable-decoder=vorbis \
+          --enable-decoder=wavpack \
+          --enable-decoder=wmalossless \
+          --enable-decoder=wmapro \
+          --enable-decoder=wmav1 \
+          --enable-decoder=wmav2 \
+          --enable-decoder=wmavoice \
+          --enable-encoder=libopus \
+          --enable-parser=aac \
+          --enable-parser=aac_latm \
+          --enable-parser=flac \
+          --enable-parser=h264 \
+          --enable-parser=hevc \
+          --enable-parser=mpeg4video \
+          --enable-parser=mpegaudio \
+          --enable-parser=opus \
+          --enable-parser=vorbis \
+          --enable-demuxer=aac \
+          --enable-demuxer=flac \
+          --enable-demuxer=gif \
+          --enable-demuxer=h264 \
+          --enable-demuxer=hevc \
+          --enable-demuxer=m4v \
+          --enable-demuxer=mov \
+          --enable-demuxer=mp3 \
+          --enable-demuxer=ogg \
+          --enable-demuxer=wav \
+          --enable-muxer=ogg \
+          --enable-muxer=opus
+
+          make -j$(nproc)
+          sudo make install
+      - name: FFmpeg install.
+        run: |
+          cd $LibrariesPath
+          #List of files from cmake/external/ffmpeg/CMakeLists.txt.
+          copyLib() {
+            mkdir -p ffmpeg/$1
+            yes | cp -i ffmpeg-cache/lib/$1.a ffmpeg/$1/$1.a
+          }
+          copyLib libavformat
+          copyLib libavcodec
+          copyLib libswresample
+          copyLib libswscale
+          copyLib libavutil
+
+          sudo cp -R ffmpeg-cache/. /usr/local/
+
+      - name: PortAudio.
+        run: |
+          cd $LibrariesPath
+
+          git clone https://git.assembla.com/portaudio.git
+          cd portaudio
+          git checkout 396fe4b669
+          ./configure
+          make -j$(nproc)
+          sudo make install
+
+      - name: OpenAL Soft.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/kcat/openal-soft.git
+          cd openal-soft
+          git checkout openal-soft-1.19.1
+          cd build
+          cmake -D LIBTYPE:STRING=STATIC ..
+          make -j$(nproc)
+          sudo make install
+
+      - name: OpenSSL cache.
+        id: cache-openssl
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.LibrariesPath }}/openssl-cache
+          key: ${{ runner.OS }}-${{ env.OPENSSL_VER }}-${{ env.CACHE_KEY }}
+      - name: OpenSSL build.
+        if: steps.cache-openssl.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/openssl/openssl openssl_$OPENSSL_VER
+          cd openssl_$OPENSSL_VER
+          git checkout OpenSSL_1_1_1-stable
+          ./config --prefix=$LibrariesPath/openssl-cache
+          make -j$(nproc)
+          sudo make install
+      - name: OpenSSL install.
+        run: |
+          cd $LibrariesPath
+          sudo mkdir -p $OPENSSL_PREFIX
+          sudo cp -R openssl-cache/. $OPENSSL_PREFIX/
+
+      - name: Libxkbcommon.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/xkbcommon/libxkbcommon.git
+          cd libxkbcommon
+          git checkout xkbcommon-0.8.4
+          ./autogen.sh
+          make -j$(nproc)
+          sudo make install
+
+      - name: Qt 5.12.5 cache.
+        id: cache-qt
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.LibrariesPath }}/qt-cache
+          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_12_5.diff') }}
+      - name: Qt 5.12.5 build.
+        if: steps.cache-qt.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone git://code.qt.io/qt/qt5.git qt_$QT
+          cd qt_$QT
+          perl init-repository --module-subset=qtbase,qtimageformats
+          git checkout v5.12.5
+          git submodule update qtbase
+          git submodule update qtimageformats
+          cd qtbase
+          git apply ../../patches/qtbase_$QT.diff
+          cd src/plugins/platforminputcontexts
+          git clone $GIT/desktop-app/fcitx.git
+          git clone $GIT/desktop-app/hime.git
+          git clone $GIT/desktop-app/nimf.git
+          cd ../../../..
+
+          ./configure -prefix "$LibrariesPath/qt-cache" \
+          -release \
+          -force-debug-info \
+          -opensource \
+          -confirm-license \
+          -qt-zlib \
+          -qt-libpng \
+          -qt-libjpeg \
+          -qt-harfbuzz \
+          -qt-pcre \
+          -qt-xcb \
+          -system-freetype \
+          -fontconfig \
+          -no-opengl \
+          -no-gtk \
+          -static \
+          -openssl-linked \
+          -I "$OPENSSL_PREFIX/include" OPENSSL_LIBS="$OPENSSL_PREFIX/lib/libssl.a $OPENSSL_PREFIX/lib/libcrypto.a -ldl -lpthread" \
+          -nomake examples \
+          -nomake tests
+
+          make -j$(nproc)
+          sudo make install
+      - name: Qt 5.12.5 install.
+        run: |
+          cd $LibrariesPath
+          sudo mkdir -p $QT_PREFIX
+          sudo cp -R qt-cache/. $QT_PREFIX/
+
+      - name: Breakpad cache.
+        id: cache-breakpad
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.LibrariesPath }}/breakpad-cache
+          key: ${{ runner.OS }}-breakpad-${{ env.CACHE_KEY }}
+      - name: Breakpad clone.
+        run: |
+          cd $LibrariesPath
+
+          git clone https://chromium.googlesource.com/breakpad/breakpad
+          cd breakpad
+          git checkout bc8fb886
+          git clone https://chromium.googlesource.com/linux-syscall-support src/third_party/lss
+          cd src/third_party/lss
+          git checkout a91633d1
+      - name: Breakpad build.
+        if: steps.cache-breakpad.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          BreakpadCache=$LibrariesPath/breakpad-cache
+
+          git clone https://chromium.googlesource.com/external/gyp
+          cd gyp
+          git checkout 9f2a7bb1
+          git apply ../patches/gyp.diff
+          cd ..
+
+          cd breakpad
+          ./configure --prefix=$BreakpadCache
+          make -j$(nproc)
+          sudo make install
+          cd src
+          rm -r testing
+          git clone $GIT/google/googletest testing
+          cd tools
+          sed -i 's/minidump_upload.m/minidump_upload.cc/' linux/tools_linux.gypi
+          ../../../gyp/gyp  --depth=. --generator-output=.. -Goutput_dir=../out tools.gyp --format=cmake
+          cd ../../out/Default
+          cmake .
+          make -j$(nproc) dump_syms
+
+          mv dump_syms $BreakpadCache/
+      - name: Breakpad install.
+        run: |
+          cd $LibrariesPath
+          sudo cp -R breakpad-cache/. /usr/local/
+          mkdir -p breakpad/out/Default/
+          cp breakpad-cache/dump_syms breakpad/out/Default/dump_syms
+
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          cd $REPO_NAME/Telegram
+
+          DEFINE=""
+          if [ -n "${{ matrix.defines }}" ]; then
+            DEFINE="-D ${{ matrix.defines }}=ON"
+            echo Define from matrix: $DEFINE
+          fi
+
+          ./configure.sh -D TDESKTOP_API_TEST=ON -D DESKTOP_APP_USE_PACKAGED=OFF $DEFINE
+
+          cd ../out/Debug
+          make -j$(nproc)
+          strip -s bin/Telegram
+
+      - name: Check.
+        if: env.ONLY_CACHE == 'false'
+        run: |
+          filePath="$REPO_NAME/out/Debug/bin/Telegram"
+          if test -f "$filePath"; then
+            echo "Build successfully done! :)"
+
+            size=$(stat -c %s "$filePath")
+            echo "File size of ${filePath}: ${size} Bytes."
+          else
+            echo "Build error, output file does not exist."
+            exit 1
+          fi
+
+      - name: Move artifact.
+        if: env.UPLOAD_ARTIFACT == 'true'
+        run: |
+          cd $REPO_NAME/out/Debug/bin
+          mkdir artifact
+          mv Telegram artifact/
+      - uses: actions/upload-artifact@master
+        if: env.UPLOAD_ARTIFACT == 'true'
+        name: Upload artifact.
+        with:
+          name: Telegram
+          path: ${{ env.REPO_NAME }}/out/Debug/bin/artifact/
diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 3550b814f..9aa29942c 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -32,7 +32,8 @@ jobs:
       QT_PREFIX: "/usr/local/desktop-app/Qt-5.12.5"
       LIBICONV_VER: "libiconv-1.15"
       UPLOAD_ARTIFACT: "false"
-      MANUAL_CACHING: "1"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "2"
       DOC_PATH: "docs/building-xcode.md"
     steps:
       - name: Get repository name.
@@ -117,8 +118,8 @@ jobs:
         run: |
           cd $LibrariesPath
 
-          git clone $GIT/openssl/openssl openssl_$OPENSSL_VER
-          cd openssl_$OPENSSL_VER
+          git clone $GIT/openssl/openssl openssl
+          cd openssl
           git checkout OpenSSL_"$OPENSSL_VER"-stable
           ./Configure \
           --prefix=$PREFIX \
@@ -127,6 +128,15 @@ jobs:
           $MIN_MAC
           make build_libs -j$(nproc)
 
+          SSL_DIR=$LibrariesPath/openssl_${{ env.OPENSSL_VER }}
+          mkdir -p $SSL_DIR/include
+          copyLib() {
+            cp $1.a $SSL_DIR/$1.a
+          }
+          copyLib libssl
+          copyLib libcrypto
+          sudo cp -R include/. $SSL_DIR/include/
+
       - name: Opus cache.
         id: cache-opus
         uses: actions/cache@v1
@@ -174,7 +184,7 @@ jobs:
         id: cache-ffmpeg
         uses: actions/cache@v1
         with:
-          path: ${{ env.LibrariesPath }}/ffmpeg
+          path: ${{ env.LibrariesPath }}/ffmpeg-cache
           key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}
       - name: FFmpeg.
         if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
@@ -188,7 +198,7 @@ jobs:
           LDFLAGS=`freetype-config --libs`
           PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:/usr/X11/lib/pkgconfig
 
-          ./configure --prefix=/usr/local \
+          ./configure --prefix=$LibrariesPath/ffmpeg-cache \
           --extra-cflags="$MIN_MAC $UNGUARDED" \
           --extra-cxxflags="$MIN_MAC $UNGUARDED" \
           --extra-ldflags="$MIN_MAC" \
@@ -290,10 +300,23 @@ jobs:
           --enable-muxer=opus
 
           make -j$(nproc)
+          sudo make install
       - name: FFmpeg install.
         run: |
-          cd $LibrariesPath/ffmpeg
-          sudo make install
+          cd $LibrariesPath
+          #List of files from cmake/external/ffmpeg/CMakeLists.txt.
+          copyLib() {
+            mkdir -p ffmpeg/$1
+            \cp -fR ffmpeg-cache/lib/$1.a ffmpeg/$1/$1.a
+          }
+          copyLib libavformat
+          copyLib libavcodec
+          copyLib libswresample
+          copyLib libswscale
+          copyLib libavutil
+
+          sudo cp -R ffmpeg-cache/. /usr/local/
+          sudo cp -R ffmpeg-cache/include/. ffmpeg/
 
       - name: OpenAL Soft.
         run: |
@@ -364,8 +387,8 @@ jobs:
           cd $LibrariesPath
           mv qt-cache Qt-5.12.5
           sudo mkdir -p $QT_PREFIX
-          sudo mv -f Qt-5.12.5 /usr/local/desktop-app/
-      - name: Build Qt 5.12.5.
+          sudo mv -f Qt-5.12.5 "$(dirname "$QT_PREFIX")"/
+      - name: Qt 5.12.5 build.
         if: steps.cache-qt.outputs.cache-hit != 'true'
         run: |
           cd $LibrariesPath
@@ -400,7 +423,8 @@ jobs:
           make clean
           cp -r $QT_PREFIX $LibrariesPath/qt-cache
 
-      - name: Build Telegram Desktop.
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
         run: |
           cd $REPO_NAME/Telegram
 
diff --git a/.github/workflows/win.yml b/.github/workflows/win.yml
index 702a3651f..815b9b68c 100644
--- a/.github/workflows/win.yml
+++ b/.github/workflows/win.yml
@@ -27,7 +27,8 @@ jobs:
       QT: "5_12_5"
       OPENSSL_VER: "1_1_1"
       UPLOAD_ARTIFACT: "false"
-      MANUAL_CACHING: "1"
+      ONLY_CACHE: "false"
+      MANUAL_CACHING: "2"
       DOC_PATH: "docs/building-msvc.md"
     steps:
       - name: Get repository name.
@@ -134,6 +135,7 @@ jobs:
           move ossl_static.pdb out32
 
           rmdir /S /Q test
+          rmdir /S /Q .git
 
       - name: Zlib.
         shell: cmd
@@ -226,6 +228,7 @@ jobs:
           path: ${{ env.LibrariesPath }}/opus
           key: ${{ runner.OS }}-opus-${{ env.CACHE_KEY }}
       - name: Opus.
+        if: steps.cache-opus.outputs.cache-hit != 'true'
         shell: cmd
         run: |
           %VC%
@@ -242,7 +245,7 @@ jobs:
         uses: actions/cache@v1
         with:
           path: ${{ env.LibrariesPath }}/ffmpeg
-          key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}-${{ hashFiles('**/build_ffmpeg_win.sh') }}
+          key: ${{ runner.OS }}-ffmpeg-${{ env.CACHE_KEY }}-2-${{ hashFiles('**/build_ffmpeg_win.sh') }}
       - name: FFmpeg.
         if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
         shell: cmd
@@ -257,6 +260,8 @@ jobs:
           set MSYS2_PATH_TYPE=inherit
           call c:\tools\msys64\usr\bin\bash --login ../../%REPO_NAME%/Telegram/Patches/build_ffmpeg_win.sh
 
+          rmdir /S /Q .git
+
       - name: Qt 5.12.5 cache.
         id: cache-qt
         uses: actions/cache@v1
@@ -298,7 +303,7 @@ jobs:
           -nomake examples ^
           -nomake tests ^
           -platform win32-msvc
-      - name: Build Qt 5.12.5.
+      - name: Qt 5.12.5 build.
         if: steps.cache-qt.outputs.cache-hit != 'true'
         shell: cmd
         run: |
@@ -321,7 +326,8 @@ jobs:
           fi
           echo "::set-env name=TDESKTOP_BUILD_DEFINE::$DEFINE"
 
-      - name: Build Telegram Desktop.
+      - name: Telegram Desktop build.
+        if: env.ONLY_CACHE == 'false'
         shell: cmd
         run: |
           cd %REPO_NAME%\Telegram
@@ -348,4 +354,4 @@ jobs:
         if: env.UPLOAD_ARTIFACT == 'true'
         with:
           name: Telegram
-          path: ${{ env.REPO_NAME }}\out\Debug\artifact\
\ No newline at end of file
+          path: ${{ env.REPO_NAME }}\out\Debug\artifact\
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index d5b16eaea..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-sudo: required
-dist: trusty
-
-language: cpp
-
-cache:
-  directories:
-    - $HOME/travisCacheDir
-
-env:
-  matrix:
-   - BUILD_VERSION=""
-   - BUILD_VERSION="disable_register_custom_scheme"
-   - BUILD_VERSION="disable_crash_reports"
-   - BUILD_VERSION="disable_network_proxy"
-   - BUILD_VERSION="disable_desktop_file_generation"
-   - BUILD_VERSION="disable_gtk_integration"
-
-matrix:
-  fast_finish: true
-
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - bison
-      - build-essential
-      - cmake
-      - devscripts
-      - dpatch
-      - equivs
-      - fakeroot
-      - g++-8
-      - gcc-8
-      - git
-      - gnome-common
-      - gobject-introspection
-      - gtk-doc-tools
-      - libappindicator-dev
-      - libasound2-dev
-      - libdbusmenu-glib-dev
-      - liblzma-dev
-      - libopus-dev
-      - libpulse-dev
-      - libenchant-dev
-      - libssl-dev
-      - libdee-dev
-      - libva-dev
-      - libvdpau-dev
-      - libxcb-xkb-dev
-      - libxkbcommon-dev
-      - libatspi2.0-dev
-      - lintian
-      - quilt
-      - valac
-      - xutils-dev
-      - yasm
-
-before_install:
-  - export CXX="g++-8" CC="gcc-8"
-  - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-8
-  - sudo update-alternatives --config gcc
-  - g++ --version
-
-script:
-  - .travis/build.sh
diff --git a/.travis/build.sh b/.travis/build.sh
deleted file mode 100755
index 7b9fd4df2..000000000
--- a/.travis/build.sh
+++ /dev/null
@@ -1,725 +0,0 @@
-#!/bin/bash
-
-set -e
-
-REPO="$PWD"
-
-BUILD="$REPO/build"
-UPSTREAM="$REPO/upstream"
-EXTERNAL="$REPO/external"
-CACHE="$HOME/travisCacheDir"
-
-QT_WAS_BUILT="0"
-
-QT_VERSION=5.12.5
-
-XKB_PATH="$BUILD/libxkbcommon"
-XKB_CACHE_VERSION="3"
-
-QT_PATH="$BUILD/qt"
-QT_CACHE_VERSION="5"
-QT_PATCH="$EXTERNAL/patches/qtbase_${QT_VERSION//\./_}.diff"
-
-BREAKPAD_PATH="$BUILD/breakpad"
-BREAKPAD_CACHE_VERSION="3"
-
-GYP_PATH="$BUILD/gyp"
-GYP_CACHE_VERSION="3"
-GYP_PATCH="$EXTERNAL/patches/gyp.diff"
-
-RANGE_PATH="$BUILD/range-v3"
-RANGE_CACHE_VERSION="3"
-
-VA_PATH="$BUILD/libva"
-VA_CACHE_VERSION="3"
-
-VDPAU_PATH="$BUILD/libvdpau"
-VDPAU_CACHE_VERSION="3"
-
-FFMPEG_PATH="$BUILD/ffmpeg"
-FFMPEG_CACHE_VERSION="3"
-
-OPENAL_PATH="$BUILD/openal-soft"
-OPENAL_CACHE_VERSION="4"
-
-GYP_DEFINES=""
-
-[[ ! $MAKE_ARGS ]] && MAKE_ARGS="--silent -j4"
-
-run() {
-  # Move files to subdir
-  cd ..
-  mv tdesktop tdesktop2
-  mkdir tdesktop
-  mv tdesktop2 "$UPSTREAM"
-
-  mkdir "$BUILD"
-
-  build
-  check
-}
-
-build() {
-  mkdir -p "$EXTERNAL"
-
-  BUILD_VERSION_DATA=$(echo $BUILD_VERSION | cut -d'-' -f 1)
-
-  getPatches
-
-  # libxkbcommon
-  getXkbCommon
-
-  # libva
-  getVa
-
-  # libvdpau
-  getVdpau
-
-  # ffmpeg
-  getFFmpeg
-
-  # openal_soft
-  getOpenAL
-
-  # Patched Qt
-  getCustomQt
-
-  # Breakpad
-  getBreakpad
-
-  # Patched GYP (supports cmake precompiled headers)
-  getGYP
-
-  # Range v3
-  getRange
-
-  # Guideline Support Library
-  getGSL
-
-  if [ "$QT_WAS_BUILT" == "1" ]; then
-    error_msg "Qt was built, please restart the job :("
-    exit 1
-  fi
-
-  # Configure the build
-  if [[ $BUILD_VERSION == *"disable_register_custom_scheme"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_REGISTER_CUSTOM_SCHEME"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_crash_reports"* ]]; then
-    GYP_DEFINES+=",DESKTOP_APP_DISABLE_CRASH_REPORTS"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_network_proxy"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_NETWORK_PROXY"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_desktop_file_generation"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_DESKTOP_FILE_GENERATION"
-  fi
-
-  if [[ $BUILD_VERSION == *"disable_gtk_integration"* ]]; then
-    GYP_DEFINES+=",TDESKTOP_DISABLE_GTK_INTEGRATION"
-  fi
-
-  info_msg "Build defines: ${GYP_DEFINES}"
-
-  buildTelegram
-
-  travisEndFold
-}
-
-getPatches() {
-  cd "$EXTERNAL"
-  git clone --depth 1 https://github.com/desktop-app/patches
-}
-
-getXkbCommon() {
-  travisStartFold "Getting xkbcommon"
-
-  local XKB_CACHE="$CACHE/libxkbcommon"
-  local XKB_CACHE_FILE="$XKB_CACHE/.cache.txt"
-  local XKB_CACHE_KEY="${XKB_CACHE_VERSION}"
-  local XKB_CACHE_OUTDATED="1"
-
-  if [ ! -d "$XKB_CACHE" ]; then
-    mkdir -p "$XKB_CACHE"
-  fi
-
-  ln -sf "$XKB_CACHE" "$XKB_PATH"
-
-  if [ -f "$XKB_CACHE_FILE" ]; then
-    local XKB_CACHE_KEY_FOUND=`tail -n 1 $XKB_CACHE_FILE`
-    if [ "$XKB_CACHE_KEY" == "$XKB_CACHE_KEY_FOUND" ]; then
-      XKB_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$XKB_CACHE_KEY_FOUND' does not match '$XKB_CACHE_KEY', rebuilding libxkbcommon"
-    fi
-  fi
-  if [ "$XKB_CACHE_OUTDATED" == "1" ]; then
-    buildXkbCommon
-    sudo echo $XKB_CACHE_KEY > "$XKB_CACHE_FILE"
-  else
-    info_msg "Using cached libxkbcommon"
-  fi
-}
-
-buildXkbCommon() {
-  info_msg "Downloading and building libxkbcommon"
-
-  if [ -d "$EXTERNAL/libxkbcommon" ]; then
-    rm -rf "$EXTERNAL/libxkbcommon"
-  fi
-  cd $XKB_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/xkbcommon/libxkbcommon.git
-
-  cd "$EXTERNAL/libxkbcommon"
-  git checkout xkbcommon-0.8.4
-  ./autogen.sh --prefix=$XKB_PATH
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getRange() {
-  travisStartFold "Getting range-v3"
-
-  local RANGE_CACHE="$CACHE/range-v3"
-  local RANGE_CACHE_FILE="$RANGE_CACHE/.cache.txt"
-  local RANGE_CACHE_KEY="${RANGE_CACHE_VERSION}"
-  local RANGE_CACHE_OUTDATED="1"
-
-  if [ ! -d "$RANGE_CACHE" ]; then
-    mkdir -p "$RANGE_CACHE"
-  fi
-
-  ln -sf "$RANGE_CACHE" "$RANGE_PATH"
-
-  if [ -f "$RANGE_CACHE_FILE" ]; then
-    local RANGE_CACHE_KEY_FOUND=`tail -n 1 $RANGE_CACHE_FILE`
-    if [ "$RANGE_CACHE_KEY" == "$RANGE_CACHE_KEY_FOUND" ]; then
-      RANGE_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$RANGE_CACHE_KEY_FOUND' does not match '$RANGE_CACHE_KEY', getting range-v3"
-    fi
-  fi
-  if [ "$RANGE_CACHE_OUTDATED" == "1" ]; then
-    buildRange
-    sudo echo $RANGE_CACHE_KEY > "$RANGE_CACHE_FILE"
-  else
-    info_msg "Using cached range-v3"
-  fi
-}
-
-buildRange() {
-  info_msg "Downloading range-v3"
-
-  if [ -d "$EXTERNAL/range-v3" ]; then
-    rm -rf "$EXTERNAL/range-v3"
-  fi
-  cd $RANGE_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone --depth 1 --branch 0.10.0 https://github.com/ericniebler/range-v3
-
-  cd "$EXTERNAL/range-v3"
-  cp -r * "$RANGE_PATH/"
-}
-
-getVa() {
-  travisStartFold "Getting libva"
-
-  local VA_CACHE="$CACHE/libva"
-  local VA_CACHE_FILE="$VA_CACHE/.cache.txt"
-  local VA_CACHE_KEY="${VA_CACHE_VERSION}"
-  local VA_CACHE_OUTDATED="1"
-
-  if [ ! -d "$VA_CACHE" ]; then
-    mkdir -p "$VA_CACHE"
-  fi
-
-  ln -sf "$VA_CACHE" "$VA_PATH"
-
-  if [ -f "$VA_CACHE_FILE" ]; then
-    local VA_CACHE_KEY_FOUND=`tail -n 1 $VA_CACHE_FILE`
-    if [ "$VA_CACHE_KEY" == "$VA_CACHE_KEY_FOUND" ]; then
-      VA_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$VA_CACHE_KEY_FOUND' does not match '$VA_CACHE_KEY', rebuilding libva"
-    fi
-  fi
-  if [ "$VA_CACHE_OUTDATED" == "1" ]; then
-    buildVa
-    sudo echo $VA_CACHE_KEY > "$VA_CACHE_FILE"
-  else
-    info_msg "Using cached libva"
-  fi
-}
-
-buildVa() {
-  info_msg "Downloading and building libva"
-
-  if [ -d "$EXTERNAL/libva" ]; then
-    rm -rf "$EXTERNAL/libva"
-  fi
-  cd $VA_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/01org/libva
-
-  cd "$EXTERNAL/libva"
-  ./autogen.sh --prefix=$VA_PATH --enable-static
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getVdpau() {
-  travisStartFold "Getting libvdpau"
-
-  local VDPAU_CACHE="$CACHE/libvdpau"
-  local VDPAU_CACHE_FILE="$VDPAU_CACHE/.cache.txt"
-  local VDPAU_CACHE_KEY="${VDPAU_CACHE_VERSION}"
-  local VDPAU_CACHE_OUTDATED="1"
-
-  if [ ! -d "$VDPAU_CACHE" ]; then
-    mkdir -p "$VDPAU_CACHE"
-  fi
-
-  ln -sf "$VDPAU_CACHE" "$VDPAU_PATH"
-
-  if [ -f "$VDPAU_CACHE_FILE" ]; then
-    local VDPAU_CACHE_KEY_FOUND=`tail -n 1 $VDPAU_CACHE_FILE`
-    if [ "$VDPAU_CACHE_KEY" == "$VDPAU_CACHE_KEY_FOUND" ]; then
-      VDPAU_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$VDPAU_CACHE_KEY_FOUND' does not match '$VDPAU_CACHE_KEY', rebuilding libvdpau"
-    fi
-  fi
-  if [ "$VDPAU_CACHE_OUTDATED" == "1" ]; then
-    buildVdpau
-    sudo echo $VDPAU_CACHE_KEY > "$VDPAU_CACHE_FILE"
-  else
-    info_msg "Using cached libvdpau"
-  fi
-}
-
-buildVdpau() {
-  info_msg "Downloading and building libvdpau"
-
-  if [ -d "$EXTERNAL/libvdpau" ]; then
-    rm -rf "$EXTERNAL/libvdpau"
-  fi
-  cd $VDPAU_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone git://anongit.freedesktop.org/vdpau/libvdpau
-
-  cd "$EXTERNAL/libvdpau"
-  git checkout libvdpau-1.2
-  ./autogen.sh --prefix=$VDPAU_PATH --enable-static
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getFFmpeg() {
-  travisStartFold "Getting ffmpeg"
-
-  local FFMPEG_CACHE="$CACHE/ffmpeg"
-  local FFMPEG_CACHE_FILE="$FFMPEG_CACHE/.cache.txt"
-  local FFMPEG_CACHE_KEY="${FFMPEG_CACHE_VERSION}"
-  local FFMPEG_CACHE_OUTDATED="1"
-
-  if [ ! -d "$FFMPEG_CACHE" ]; then
-    mkdir -p "$FFMPEG_CACHE"
-  fi
-
-  ln -sf "$FFMPEG_CACHE" "$FFMPEG_PATH"
-
-  if [ -f "$FFMPEG_CACHE_FILE" ]; then
-    local FFMPEG_CACHE_KEY_FOUND=`tail -n 1 $FFMPEG_CACHE_FILE`
-    if [ "$FFMPEG_CACHE_KEY" == "$FFMPEG_CACHE_KEY_FOUND" ]; then
-      FFMPEG_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$FFMPEG_CACHE_KEY_FOUND' does not match '$FFMPEG_CACHE_KEY', rebuilding ffmpeg"
-    fi
-  fi
-  if [ "$FFMPEG_CACHE_OUTDATED" == "1" ]; then
-    buildFFmpeg
-    sudo echo $FFMPEG_CACHE_KEY > "$FFMPEG_CACHE_FILE"
-  else
-    info_msg "Using cached ffmpeg"
-  fi
-}
-
-buildFFmpeg() {
-  info_msg "Downloading and building ffmpeg"
-
-  if [ -d "$EXTERNAL/ffmpeg" ]; then
-    rm -rf "$EXTERNAL/ffmpeg"
-  fi
-  cd $FFMPEG_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://git.ffmpeg.org/ffmpeg.git
-
-  cd "$EXTERNAL/ffmpeg"
-  git checkout release/3.4
-
-  ./configure \
-      --prefix=$FFMPEG_PATH \
-      --disable-debug \
-      --disable-programs \
-      --disable-doc \
-      --disable-everything \
-      --enable-gpl \
-      --enable-version3 \
-      --enable-libopus \
-      --enable-decoder=aac \
-      --enable-decoder=aac_latm \
-      --enable-decoder=aasc \
-      --enable-decoder=flac \
-      --enable-decoder=gif \
-      --enable-decoder=h264 \
-      --enable-decoder=h264_vdpau \
-      --enable-decoder=mp1 \
-      --enable-decoder=mp1float \
-      --enable-decoder=mp2 \
-      --enable-decoder=mp2float \
-      --enable-decoder=mp3 \
-      --enable-decoder=mp3adu \
-      --enable-decoder=mp3adufloat \
-      --enable-decoder=mp3float \
-      --enable-decoder=mp3on4 \
-      --enable-decoder=mp3on4float \
-      --enable-decoder=mpeg4 \
-      --enable-decoder=mpeg4_vdpau \
-      --enable-decoder=msmpeg4v2 \
-      --enable-decoder=msmpeg4v3 \
-      --enable-decoder=opus \
-      --enable-decoder=vorbis \
-      --enable-decoder=wavpack \
-      --enable-decoder=wmalossless \
-      --enable-decoder=wmapro \
-      --enable-decoder=wmav1 \
-      --enable-decoder=wmav2 \
-      --enable-decoder=wmavoice \
-      --enable-encoder=libopus \
-      --enable-hwaccel=h264_vaapi \
-      --enable-hwaccel=h264_vdpau \
-      --enable-hwaccel=mpeg4_vaapi \
-      --enable-hwaccel=mpeg4_vdpau \
-      --enable-parser=aac \
-      --enable-parser=aac_latm \
-      --enable-parser=flac \
-      --enable-parser=h264 \
-      --enable-parser=mpeg4video \
-      --enable-parser=mpegaudio \
-      --enable-parser=opus \
-      --enable-parser=vorbis \
-      --enable-demuxer=aac \
-      --enable-demuxer=flac \
-      --enable-demuxer=gif \
-      --enable-demuxer=h264 \
-      --enable-demuxer=mov \
-      --enable-demuxer=mp3 \
-      --enable-demuxer=ogg \
-      --enable-demuxer=wav \
-      --enable-muxer=ogg \
-      --enable-muxer=opus
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getOpenAL() {
-  travisStartFold "Getting openal-soft"
-
-  local OPENAL_CACHE="$CACHE/openal-soft"
-  local OPENAL_CACHE_FILE="$OPENAL_CACHE/.cache.txt"
-  local OPENAL_CACHE_KEY="${OPENAL_CACHE_VERSION}"
-  local OPENAL_CACHE_OUTDATED="1"
-
-  if [ ! -d "$OPENAL_CACHE" ]; then
-    mkdir -p "$OPENAL_CACHE"
-  fi
-
-  ln -sf "$OPENAL_CACHE" "$OPENAL_PATH"
-
-  if [ -f "$OPENAL_CACHE_FILE" ]; then
-    local OPENAL_CACHE_KEY_FOUND=`tail -n 1 $OPENAL_CACHE_FILE`
-    if [ "$OPENAL_CACHE_KEY" == "$OPENAL_CACHE_KEY_FOUND" ]; then
-      OPENAL_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$OPENAL_CACHE_KEY_FOUND' does not match '$OPENAL_CACHE_KEY', rebuilding openal-soft"
-    fi
-  fi
-  if [ "$OPENAL_CACHE_OUTDATED" == "1" ]; then
-    buildOpenAL
-    sudo echo $OPENAL_CACHE_KEY > "$OPENAL_CACHE_FILE"
-  else
-    info_msg "Using cached openal-soft"
-  fi
-}
-
-buildOpenAL() {
-  info_msg "Downloading and building openal-soft"
-
-  if [ -d "$EXTERNAL/openal-soft" ]; then
-    rm -rf "$EXTERNAL/openal-soft"
-  fi
-  cd $OPENAL_PATH
-  sudo rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://github.com/kcat/openal-soft.git
-  cd openal-soft
-  git checkout openal-soft-1.19.1
-
-  cd "$EXTERNAL/openal-soft/build"
-  cmake \
-      -D CMAKE_INSTALL_PREFIX=$OPENAL_PATH \
-      -D CMAKE_BUILD_TYPE=Release \
-      -D LIBTYPE=STATIC \
-      -D ALSOFT_EXAMPLES=OFF \
-      -D ALSOFT_TESTS=OFF \
-      -D ALSOFT_UTILS=OFF \
-      ..
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getBreakpad() {
-  travisStartFold "Getting breakpad"
-
-  local BREAKPAD_CACHE="$CACHE/breakpad"
-  local BREAKPAD_CACHE_FILE="$BREAKPAD_CACHE/.cache.txt"
-  local BREAKPAD_CACHE_KEY="${BREAKPAD_CACHE_VERSION}"
-  local BREAKPAD_CACHE_OUTDATED="1"
-
-  if [ ! -d "$BREAKPAD_CACHE" ]; then
-    mkdir -p "$BREAKPAD_CACHE"
-  fi
-
-  ln -sf "$BREAKPAD_CACHE" "$BREAKPAD_PATH"
-
-  if [ -f "$BREAKPAD_CACHE_FILE" ]; then
-    local BREAKPAD_CACHE_KEY_FOUND=`tail -n 1 $BREAKPAD_CACHE_FILE`
-    if [ "$BREAKPAD_CACHE_KEY" == "$BREAKPAD_CACHE_KEY_FOUND" ]; then
-      BREAKPAD_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$BREAKPAD_CACHE_KEY_FOUND' does not match '$BREAKPAD_CACHE_KEY', rebuilding breakpad"
-    fi
-  fi
-  if [ "$BREAKPAD_CACHE_OUTDATED" == "1" ]; then
-    buildBreakpad
-    sudo echo $BREAKPAD_CACHE_KEY > "$BREAKPAD_CACHE_FILE"
-  else
-    info_msg "Using cached breakpad"
-  fi
-}
-
-buildBreakpad() {
-  info_msg "Downloading and building breakpad"
-
-  if [ -d "$EXTERNAL/breakpad" ]; then
-    rm -rf "$EXTERNAL/breakpad"
-  fi
-  cd $BREAKPAD_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://chromium.googlesource.com/breakpad/breakpad
-
-  cd "$EXTERNAL/breakpad/src/third_party"
-  git clone https://chromium.googlesource.com/linux-syscall-support lss
-
-  cd "$EXTERNAL/breakpad"
-  ./configure --prefix=$BREAKPAD_PATH
-  make $MAKE_ARGS
-  sudo make install
-  sudo ldconfig
-}
-
-getCustomQt() {
-  travisStartFold "Getting patched Qt"
-
-  local QT_CACHE="$CACHE/qtPatched"
-  local QT_CACHE_FILE="$QT_CACHE/.cache.txt"
-  local QT_PATCH_CHECKSUM=`sha1sum $QT_PATCH`
-  local QT_CACHE_KEY="${QT_VERSION}_${QT_CACHE_VERSION}_${QT_PATCH_CHECKSUM:0:32}"
-  local QT_CACHE_OUTDATED="1"
-
-  if [ ! -d "$QT_CACHE" ]; then
-    mkdir -p "$QT_CACHE"
-  fi
-
-  ln -sf "$QT_CACHE" "$QT_PATH"
-
-  if [ -f "$QT_CACHE_FILE" ]; then
-    local QT_CACHE_KEY_FOUND=`tail -n 1 $QT_CACHE_FILE`
-    if [ "$QT_CACHE_KEY" == "$QT_CACHE_KEY_FOUND" ]; then
-      QT_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$QT_CACHE_KEY_FOUND' does not match '$QT_CACHE_KEY', rebuilding patched Qt"
-    fi
-  fi
-  if [ "$QT_CACHE_OUTDATED" == "1" ]; then
-    buildCustomQt
-    sudo echo $QT_CACHE_KEY > "$QT_CACHE_FILE"
-  else
-    info_msg "Using cached patched Qt"
-  fi
-
-  export PATH="$QT_PATH/bin:$PATH"
-}
-
-buildCustomQt() {
-  QT_WAS_BUILT="1"
-  info_msg "Downloading and building patched qt"
-
-  if [ -d "$EXTERNAL/qt_${QT_VERSION}" ]; then
-    sudo rm -rf "$EXTERNAL/qt_${QT_VERSION}"
-  fi
-  cd $QT_PATH
-  sudo rm -rf *
-
-  cd "$EXTERNAL"
-  git clone git://code.qt.io/qt/qt5.git qt${QT_VERSION}
-
-  cd "$EXTERNAL/qt${QT_VERSION}"
-  perl init-repository --branch --module-subset=qtbase,qtimageformats
-  git checkout v${QT_VERSION}
-  git submodule update qtbase
-  git submodule update qtimageformats
-
-  cd "$EXTERNAL/qt${QT_VERSION}/qtbase"
-  git apply "$QT_PATCH"
-  cd ..
-
-  cd "$EXTERNAL/qt${QT_VERSION}/qtbase/src/plugins/platforminputcontexts"
-  git clone https://github.com/telegramdesktop/fcitx.git
-  git clone https://github.com/telegramdesktop/hime.git
-  git clone https://github.com/telegramdesktop/nimf.git
-  cd ../../../..
-
-  ./configure -prefix $QT_PATH -release -opensource -confirm-license -qt-zlib \
-              -qt-libpng -qt-libjpeg -qt-harfbuzz -qt-pcre -qt-xcb \
-              -system-freetype -fontconfig -no-opengl -no-gtk -static \
-              -nomake examples -nomake tests -no-mirclient \
-              -dbus-runtime -no-mtdev # <- Not sure about these
-  make $MAKE_ARGS
-  sudo make install
-}
-
-getGSL() {
-  cd "$UPSTREAM"
-  git submodule init
-  git submodule update
-}
-
-getGYP() {
-  travisStartFold "Getting patched GYP"
-
-  local GYP_CACHE="$CACHE/gyp"
-  local GYP_CACHE_FILE="$GYP_CACHE/.cache.txt"
-  local GYP_PATCH_CHECKSUM=`sha1sum $GYP_PATCH`
-  local GYP_CACHE_KEY="${GYP_CACHE_VERSION}_${GYP_PATCH_CHECKSUM:0:32}"
-  local GYP_CACHE_OUTDATED="1"
-
-  if [ ! -d "$GYP_CACHE" ]; then
-    mkdir -p "$GYP_CACHE"
-  fi
-
-  ln -sf "$GYP_CACHE" "$GYP_PATH"
-
-  if [ -f "$GYP_CACHE_FILE" ]; then
-    local GYP_CACHE_KEY_FOUND=`tail -n 1 $GYP_CACHE_FILE`
-    if [ "$GYP_CACHE_KEY" == "$GYP_CACHE_KEY_FOUND" ]; then
-      GYP_CACHE_OUTDATED="0"
-    else
-      info_msg "Cache key '$GYP_CACHE_KEY_FOUND' does not match '$GYP_CACHE_KEY', rebuilding patched GYP"
-    fi
-  fi
-  if [ "$GYP_CACHE_OUTDATED" == "1" ]; then
-    buildGYP
-    sudo echo $GYP_CACHE_KEY > "$GYP_CACHE_FILE"
-  else
-    info_msg "Using cached patched GYP"
-  fi
-}
-
-buildGYP() {
-  info_msg "Downloading and building patched GYP"
-
-  if [ -d "$EXTERNAL/gyp" ]; then
-    rm -rf "$EXTERNAL/gyp"
-  fi
-  cd $GYP_PATH
-  rm -rf *
-
-  cd "$EXTERNAL"
-  git clone https://chromium.googlesource.com/external/gyp
-
-  cd "$EXTERNAL/gyp"
-  git checkout 9f2a7bb1
-  git apply "$GYP_PATCH"
-  cp -r * "$GYP_PATH/"
-}
-
-buildTelegram() {
-  travisStartFold "Build tdesktop"
-
-  cd "$UPSTREAM/Telegram/gyp"
-  "$GYP_PATH/gyp" \
-      -Dapi_id=17349 \
-      -Dapi_hash=344583e45741c457fe1862106095a5eb \
-      -Dspecial_build_target= \
-      -Dbuild_defines=${GYP_DEFINES:1} \
-      -Dlinux_path_xkbcommon=$XKB_PATH \
-      -Dlinux_path_va=$VA_PATH \
-      -Dlinux_path_vdpau=$VDPAU_PATH \
-      -Dlinux_path_ffmpeg=$FFMPEG_PATH \
-      -Dlinux_path_openal=$OPENAL_PATH \
-      -Dlinux_path_range=$RANGE_PATH \
-      -Dlinux_path_qt=$QT_PATH \
-      -Dlinux_path_breakpad=$BREAKPAD_PATH \
-      -Dlinux_path_libexif_lib=/usr/local/lib \
-      -Dlinux_lib_ssl=-lssl \
-      -Dlinux_lib_crypto=-lcrypto \
-      -Dlinux_lib_icu=-licuuc\ -licutu\ -licui18n \
-      --depth=. --generator-output=.. --format=cmake -Goutput_dir=../out \
-      Telegram.gyp
-  cd "$UPSTREAM/out/Debug"
-
-  export ASM="gcc"
-  cmake .
-  make $MAKE_ARGS
-}
-
-check() {
-  local filePath="$UPSTREAM/out/Debug/Telegram"
-  if test -f "$filePath"; then
-    success_msg "Build successfully done! :)"
-
-    local size;
-    size=$(stat -c %s "$filePath")
-    success_msg "File size of ${filePath}: ${size} Bytes"
-  else
-    error_msg "Build error, output file does not exist"
-    exit 1
-  fi
-}
-
-source ./.travis/common.sh
-
-run
diff --git a/.travis/common.sh b/.travis/common.sh
deleted file mode 100755
index 6a79baba0..000000000
--- a/.travis/common.sh
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-# set colors
-RCol='\e[0m'    # Text Reset
-
-# Regular           Bold                Underline           High Intensity      BoldHigh Intens     Background          High Intensity Backgrounds
-Bla='\e[0;30m';     BBla='\e[1;30m';    UBla='\e[4;30m';    IBla='\e[0;90m';    BIBla='\e[1;90m';   On_Bla='\e[40m';    On_IBla='\e[0;100m';
-Red='\e[0;31m';     BRed='\e[1;31m';    URed='\e[4;31m';    IRed='\e[0;91m';    BIRed='\e[1;91m';   On_Red='\e[41m';    On_IRed='\e[0;101m';
-Gre='\e[0;32m';     BGre='\e[1;32m';    UGre='\e[4;32m';    IGre='\e[0;92m';    BIGre='\e[1;92m';   On_Gre='\e[42m';    On_IGre='\e[0;102m';
-Yel='\e[0;33m';     BYel='\e[1;33m';    UYel='\e[4;33m';    IYel='\e[0;93m';    BIYel='\e[1;93m';   On_Yel='\e[43m';    On_IYel='\e[0;103m';
-Blu='\e[0;34m';     BBlu='\e[1;34m';    UBlu='\e[4;34m';    IBlu='\e[0;94m';    BIBlu='\e[1;94m';   On_Blu='\e[44m';    On_IBlu='\e[0;104m';
-Pur='\e[0;35m';     BPur='\e[1;35m';    UPur='\e[4;35m';    IPur='\e[0;95m';    BIPur='\e[1;95m';   On_Pur='\e[45m';    On_IPur='\e[0;105m';
-Cya='\e[0;36m';     BCya='\e[1;36m';    UCya='\e[4;36m';    ICya='\e[0;96m';    BICya='\e[1;96m';   On_Cya='\e[46m';    On_ICya='\e[0;106m';
-Whi='\e[0;37m';     BWhi='\e[1;37m';    UWhi='\e[4;37m';    IWhi='\e[0;97m';    BIWhi='\e[1;97m';   On_Whi='\e[47m';    On_IWhi='\e[0;107m';
-
-start_msg() {
-    echo -e "\n${Gre}$*${RCol}"
-}
-
-info_msg() {
-    sameLineInfoMessage "\n$1"
-}
-
-error_msg() {
-    echo -e "\n${BRed}$*${RCol}"
-}
-
-success_msg() {
-    echo -e "\n${BGre}$*${RCol}"
-}
-
-sameLineInfoMessage() {
-    echo -e "${Cya}$*${RCol}"
-}
-
-TRAVIS_LAST_FOLD=""
-
-travisStartFold() {
-    local TITLE="$1"
-    local NAME=$(sanitizeName "$TITLE")
-
-    if [ "$TRAVIS_LAST_FOLD" != "" ]; then
-        travisEndFold
-    fi
-
-    echo "travis_fold:start:$NAME"
-    sameLineInfoMessage "$TITLE"
-
-    TRAVIS_LAST_FOLD="$NAME"
-}
-
-travisEndFold() {
-    if [ "$TRAVIS_LAST_FOLD" == "" ]; then
-        return
-    fi
-
-    echo "travis_fold:end:$TRAVIS_LAST_FOLD"
-    TRAVIS_LAST_FOLD=""
-}
-
-sanitizeName() {
-    local NAME="${1// /_}"
-    local NAME="${NAME,,}"
-    echo "$NAME"
-}