diff --git a/README.md b/README.md
index 424105e1a..8fbb38c5c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@
 
 Original README with build instructions and licenses could be found in [Telegram Desktop repository][telegram_desktop_readme].
 
-There will be builds of Kotatogram for Windows, and possibly Linux. No autoupdates for now.
+Also there is [updated instruction on how to build app in Ubuntu 16.04][docs_ubuntu_16].
+
+There will be builds of Kotatogram for Windows and Linux 64-bit. No autoupdates for now.
 
 Expect a lot of breaking changes.
 
@@ -26,3 +28,4 @@ Expect a lot of breaking changes.
 [//]: # (LINKS)
 [telegram_desktop]: https://desktop.telegram.org
 [telegram_desktop_readme]: https://github.com/telegramdesktop/tdesktop/blob/dev/README.md
+[docs_ubuntu_16]: https://github.com/kotatogram/kotatogram-desktop/blob/dev/docs/building-cmake-ktg.md
\ No newline at end of file
diff --git a/docs/building-cmake-ktg.md b/docs/building-cmake-ktg.md
new file mode 100644
index 000000000..3f67c90d4
--- /dev/null
+++ b/docs/building-cmake-ktg.md
@@ -0,0 +1,288 @@
+## Build instructions for GYP/CMake under Ubuntu 16.04
+
+The process is almost the same as with 14.04, but with one change: you need to use OpenSSL 1.0.2 instead of 1.0.1.
+
+### Prepare folder
+
+Choose an empty folder for the future build, for example **/home/user/TBuild**. It will be named ***BuildPath*** in the rest of this document.
+
+### Obtain your API credentials
+
+You will require **api_id** and **api_hash** to access the Telegram API servers. To learn how to obtain them [click here][api_credentials].
+
+### Install software and required packages
+
+You will need GCC 8.1 and CMake 3.2 installed. To install them and all the required dependencies run
+
+    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 libxcb1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libxcb-render-util0-dev libxcb-util0-dev libxrender-dev libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html zlib1g-dev yasm cmake xutils-dev bison python-xcbgen chrpath -y && \
+
+    sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \
+    sudo add-apt-repository ppa:george-edison55/cmake-3.x -y && \
+    sudo apt-get update && \
+    sudo apt-get install gcc-8 g++-8 cmake -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 && \
+    sudo add-apt-repository --remove ppa:george-edison55/cmake-3.x -y
+
+You can set the multithreaded make parameter by running
+
+    MAKE_THREADS_CNT=-j8
+
+### Clone source code and prepare libraries
+
+Go to ***BuildPath*** and run
+
+    git clone --recursive https://github.com/kotatogram/kotatogram-desktop.git tdesktop
+
+    mkdir Libraries
+    cd Libraries
+
+    git clone --branch 0.5.0 https://github.com/ericniebler/range-v3
+
+    git clone https://github.com/telegramdesktop/zlib.git
+    cd zlib
+    ./configure
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://github.com/xiph/opus
+    cd opus
+    git checkout v1.3
+    ./autogen.sh
+    ./configure
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://github.com/01org/libva.git
+    cd libva
+    ./autogen.sh --enable-static
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone git://anongit.freedesktop.org/vdpau/libvdpau
+    cd libvdpau
+    git checkout libvdpau-1.2
+    ./autogen.sh --enable-static
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://github.com/FFmpeg/FFmpeg.git ffmpeg
+    cd ffmpeg
+    git checkout release/3.4
+
+    ./configure --prefix=/usr/local \
+    --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 $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://git.assembla.com/portaudio.git
+    cd portaudio
+    git checkout 396fe4b669
+    ./configure
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone git://repo.or.cz/openal-soft.git
+    cd openal-soft
+    git checkout openal-soft-1.19.1
+    cd build
+    if [ `uname -p` == "i686" ]; then
+    cmake -D LIBTYPE:STRING=STATIC -D ALSOFT_UTILS:BOOL=OFF ..
+    else
+    cmake -D LIBTYPE:STRING=STATIC ..
+    fi
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ../..
+
+    git clone https://github.com/openssl/openssl
+    cd openssl
+    git checkout OpenSSL_1_0_2-stable
+    ./config
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://github.com/xkbcommon/libxkbcommon.git
+    cd libxkbcommon
+    git checkout xkbcommon-0.8.4
+    ./autogen.sh --disable-x11
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone git://code.qt.io/qt/qt5.git qt5_6_2
+    cd qt5_6_2
+    perl init-repository --module-subset=qtbase,qtimageformats
+    git checkout v5.6.2
+    cd qtimageformats && git checkout v5.6.2 && cd ..
+    cd qtbase && git checkout v5.6.2 && cd ..
+    cd qtbase && git apply ../../../tdesktop/Telegram/Patches/qtbase_5_6_2.diff && cd ..
+    cd 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 "/usr/local/tdesktop/Qt-5.6.2" -release -force-debug-info -opensource -confirm-license -qt-zlib -qt-libpng -qt-libjpeg -qt-freetype -qt-harfbuzz -qt-pcre -qt-xcb -qt-xkbcommon-x11 -no-opengl -no-gtkstyle -static -openssl-linked -nomake examples -nomake tests
+
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd ..
+
+    git clone https://chromium.googlesource.com/external/gyp
+    cd gyp
+    git checkout 702ac58e47
+    git apply ../../tdesktop/Telegram/Patches/gyp.diff
+    cd ..
+
+    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
+    cd ../../..
+    ./configure
+    make $MAKE_THREADS_CNT
+    sudo make install
+    cd src/tools
+    ../../../gyp/gyp  --depth=. --generator-output=.. -Goutput_dir=../out tools.gyp --format=cmake
+    cd ../../out/Default
+    cmake .
+    make $MAKE_THREADS_CNT dump_syms
+    cd ../../..
+
+### Building the project
+
+Before refreshing, you can set build defines (skip this step if you don't need to disable anything):
+    
+    export TDESKTOP_BUILD_DEFINES=TDESKTOP_DISABLE_CRASH_REPORTS,TDESKTOP_DISABLE_AUTOUPDATE
+
+Go to ***BuildPath*/tdesktop/Telegram** and run (using [your **api_id** and **api_hash**](#obtain-your-api-credentials))
+
+    gyp/refresh.sh --api-id YOUR_API_ID --api-hash YOUR_API_HASH
+
+To make Debug version go to ***BuildPath*/tdesktop/out/Debug** and run
+
+    make $MAKE_THREADS_CNT
+
+P.S. It may be bad idea to make app in multiple threads. In case of errors try omit `$MAKE_THREADS_CNT` parameter.
+
+To make Release version go to ***BuildPath*/tdesktop/out/Release** and run
+
+    make $MAKE_THREADS_CNT
+
+Since binary file will be big, don't forget to run this in ***BuildPath*/tdesktop/out/Release** if you will publish the app:
+
+    strip --strip-all Telegram
+
+You can debug your builds from Qt Creator, just open **CMakeLists.txt** from ***BuildPath*/tdesktop/out/Debug** and launch with debug.
+
+[api_credentials]: api_credentials.md