diff --git a/build-and-install-vapoursynth.sh b/build-and-install-vapoursynth.sh
new file mode 100755
index 0000000..00b3cd9
--- /dev/null
+++ b/build-and-install-vapoursynth.sh
@@ -0,0 +1,186 @@
+#!/bin/bash
+# should be a shell that provides $SECONDS
+
+# build script for Ubuntu 16.04 or newer
+
+JOBS=4
+#stamp="dependencies_for_vapoursynth_installed.stamp"
+
+set -e
+set -x
+
+#if [ ! -e $stamp -a -x "/usr/bin/apt" ]; then
+  sudo apt update
+  sudo apt upgrade
+  sudo apt install --no-install-recommends \
+    build-essential \
+    git \
+    python3-pip \
+    autoconf \
+    automake \
+    libtool \
+    libtool-bin \
+    libltdl-dev \
+    libva-dev \
+    libvdpau-dev \
+    libass-dev \
+    libtesseract-dev \
+    libleptonica-dev \
+    zlib1g-dev \
+    libbz2-dev \
+    libjpeg-dev \
+    libpng-dev \
+    libtiff-dev \
+    liblzma-dev \
+    libfontconfig-dev \
+    libfreetype6-dev \
+    libfftw3-dev \
+    libpango1.0-dev \
+    libxml2-dev \
+    python3-dev \
+    cython3 \
+    build-essential
+
+  #touch $stamp
+#fi
+
+vsprefix="$HOME/opt/vapoursynth"
+
+export PATH="$vsprefix/bin:$PATH"
+export PKG_CONFIG_PATH="$vsprefix/lib/pkgconfig"
+export CFLAGS="-pipe -O3 -fno-strict-aliasing -Wno-deprecated-declarations"
+export CXXFLAGS="$CFLAGS"
+
+TOP="$PWD"
+
+mkdir build
+cd build
+
+# newer nasm
+if [ ! -x "$vsprefix/bin/nasm" ]; then
+  ver="2.14.02"
+  wget -c https://www.nasm.us/pub/nasm/releasebuilds/$ver/nasm-${ver}.tar.xz
+  tar xf nasm-${ver}.tar.xz
+  cd nasm-$ver
+  ./configure --prefix="$vsprefix"
+  make -j$JOBS
+  make install
+  cd ..
+fi
+
+#cat <<EOL >/dev/null
+
+# build zimg, needed by Vapoursynth
+git clone https://github.com/sekrit-twc/zimg
+cd zimg
+git checkout $(git tag | sort -V | tail -1)
+autoreconf -if
+./configure --prefix="$vsprefix"
+make -j$JOBS
+make install-strip
+cd ..
+
+# build ImageMagick 7, needed by imwri plugin
+git clone https://github.com/ImageMagick/ImageMagick
+cd ImageMagick
+git checkout $(git tag | grep '^7\.' | sort -V | tail -1)
+PATH="$PWD:$PATH" autoreconf -if
+./configure --prefix="$vsprefix" \
+  --disable-static \
+  --disable-docs \
+  --without-utilities \
+  --enable-hdri \
+  --with-quantum-depth=16
+make -j$JOBS
+make install-strip
+cd ..
+
+# for nvidia support in ffmpeg
+git clone --depth 1 https://github.com/FFmpeg/nv-codec-headers
+make -C nv-codec-headers install PREFIX="$vsprefix"
+
+# ffmpeg
+git clone --depth 1 https://github.com/FFmpeg/FFmpeg
+cd FFmpeg
+./configure --prefix="$vsprefix" \
+  --disable-static \
+  --enable-shared \
+  --disable-programs \
+  --disable-doc \
+  --disable-debug \
+  --enable-avresample \
+  --enable-ffnvcodec \
+  --enable-nvdec \
+  --enable-nvenc \
+  --enable-cuvid \
+  --enable-vaapi \
+  --enable-vdpau
+make -j$JOBS
+make install
+
+#EOL
+
+# VapourSynth
+git clone https://github.com/vapoursynth/vapoursynth
+cd vapoursynth
+git checkout $(git tag | grep '^R' | sort -V | tail -1)
+autoreconf -if
+./configure --prefix="$vsprefix"
+make -j$JOBS
+make install-strip
+#rm -f "$vsprefix"/lib/libvapoursynth-script.*
+make maintainer-clean
+
+export PYTHONUSERBASE="$PWD/temp"
+pip3 install -q -I --user cython
+./temp/bin/cython --3str src/cython/vapoursynth.pyx
+
+
+echo "$PWD"
+rm -rf .git
+cp -rf "$PWD" "$vsprefix/src"
+
+cd "$vsprefix"
+
+# copy
+sitepackages="$vsprefix/lib/python3/site-packages"
+mkdir -p "$sitepackages"
+
+# cython
+g++ -std=c++11 -shared -fPIC -O3 -Isrc  $(pkg-config --cflags python3) \
+  src/src/cython/vapoursynth.c  -o "$sitepackages/vapoursynth.so" \
+  -Llib -lvapoursynth  -s -Wl,-rpath,"$vsprefix/lib" &
+echo "Build Python module"
+
+# vsscript
+g++ -std=c++11 -shared -fPIC -O3 -Isrc/include  $(pkg-config --cflags python3) \
+  src/src/vsscript/vsscript.cpp  -o "$vsprefix/lib/libvapoursynth-script.so.0" \
+  $(pkg-config --libs python3)  -s -Wl,-rpath,"$vsprefix/lib"  -Wl,-soname,libvapoursynth-script.so.0 &
+echo "Build VSScript library"
+
+ln -sf libvapoursynth-script.so.0 "$vsprefix/lib/libvapoursynth-script.so"
+
+# vspipe
+g++ -std=c++11 -O3 -Isrc/include  src/src/vspipe/vspipe.cpp  -o "$vsprefix/vspipe" \
+  -L"$vsprefix/lib" -lvapoursynth-script  -s -Wl,-rpath,"$vsprefix/lib" &
+echo "Build VSPipe"
+
+echo "Create \`$vsprefix/env.sh'"
+cat <<EOF >"$vsprefix/env.sh"
+# source this file with
+# . "$vsprefix/env.sh"
+export LD_LIBRARY_PATH="$vsprefix/lib:\$LD_LIBRARY_PATH"
+export PYTHONPATH="$vsprefix/lib/python3/site-packages:\$PYTHONPATH"
+EOF
+
+# http://www.vapoursynth.com/doc/autoloading.html#linux
+conf="$HOME/.config/vapoursynth/vapoursynth.conf"
+echo "Create \`$conf'"
+mkdir -p "$HOME/.config/vapoursynth"
+echo "SystemPluginDir=$vsprefix/vsplugins" > "$conf"
+
+pip3 uninstall -y -q cython
+
+s=$SECONDS
+printf "\nfinished after %d min %d sec\n" $(($s / 60)) $(($s % 60))
+
diff --git a/build-plugins.sh b/build-plugins.sh
index b5be698..03d327b 100755
--- a/build-plugins.sh
+++ b/build-plugins.sh
@@ -14,6 +14,9 @@ if [ ! -e "$my_pkg_config_path/vapoursynth.pc" -a\
   exit 1
 fi
 
+# gcc++-11 is required for rife
+sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+
 #if [ ! -e $stamp -x "/usr/bin/apt" ]; then
   sudo apt update
   sudo apt upgrade
@@ -36,7 +39,9 @@ fi
     libboost-filesystem-dev \
     libboost-system-dev \
     libbluray-dev \
-    libpng-dev
+    libpng-dev \
+    g++-11 \
+    gcc-11
   # only on Ubuntu 16.04 ...
   # sudo apt install --no-install-recommends libcompute-dev || true
   #touch $stamp
@@ -74,7 +79,7 @@ pip3 install -q -I --upgrade --user setuptools wheel  # must be installed first
 pip3 install -q -I --upgrade --user meson ninja
 echo $PWD
 plugins=$(ls -1 ../build-plugins/plugin-*.sh | sed 's|^\.\./build-plugins/plugin-||g; s|\.sh$||g')
-#plugins=( "mvtoolssf" )
+#plugins="rife"
 count=$(echo $plugins | wc -w)
 n=0
 
diff --git a/build-plugins/plugin-rife.sh b/build-plugins/plugin-rife.sh
new file mode 100644
index 0000000..4a64881
--- /dev/null
+++ b/build-plugins/plugin-rife.sh
@@ -0,0 +1 @@
+mkgh HomeOfVapourSynthEvolution/VapourSynth-RIFE-ncnn-Vulkan librife