diff --git a/system-images/android/sdk/build-cmake-native b/system-images/android/sdk/build-cmake-native
index 04fa932..053b8a4 100755
--- a/system-images/android/sdk/build-cmake-native
+++ b/system-images/android/sdk/build-cmake-native
@@ -1,34 +1,34 @@
 #!/bin/bash
 
 set -e
 
 name=$1
 shift
 repo=$1
 shift
 
 srcdir="`pwd`/src"
 cloned=0
 if ! [ -d "$srcdir"/$name ] ; then
     mkdir -p "$srcdir"
     pushd "$srcdir"
-    git clone $repo --single-branch $GIT_EXTRA
+    git clone --depth 1 $repo --single-branch $GIT_EXTRA
     cloned=1
     popd
 fi
 
 mkdir build/$name -p
 pushd build/$name
 
 cmake "$srcdir"/$name/$EXTRA_CMAKE_SUBDIR $@
 cmake --build . -- install -j`nproc`
 popd
 if [ "$PERSIST" ]; then
     echo "leaving the build directory intact"
 else
     rm -rf build/$name
 
     if [ "$cloned" ]; then
         rm -rf src/$name
     fi
 fi
diff --git a/system-images/android/sdk/build-generic b/system-images/android/sdk/build-generic
index d74c051..fb5982d 100755
--- a/system-images/android/sdk/build-generic
+++ b/system-images/android/sdk/build-generic
@@ -1,54 +1,54 @@
 #!/bin/bash
 set -e
 # trap 'err_report echo "error: ${BASH_SOURCE}":"${LINENO}"' exit 1
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export PATH=$DIR:$PATH
 export PERSIST=1
 
 package=$1
 shift
 
 build-kde-dependencies $package
 
 # we now do the actual application separately
 
 # first we download the project and look for the manifest file
 pushd src
-git clone kde:$package $APP_GIT_EXTRA || true
+git clone --depth 1 kde:$package $APP_GIT_EXTRA || true
 popd
 manifestFile=`find $(pwd)/src/$package -name AndroidManifest.xml`
 
 targetname=$(python3 ci-tooling/helpers/getsetting.py --project $package --product Applications --platform AndroidQt5.12 --key target-name || true)
 if [[ -z "$targetname" && -n "$manifestFile" ]]
 then
     targetname=`python3 $DIR/target-from-manifest.py $manifestFile | tr '\n' ';' | head -c -1`
     EXTRA+=" "-DANDROID_APK_DIR=$(dirname $manifestFile | tr '\n' ';' | head -c -1 )
 fi
 
 if [[ -z "$targetname" || "$targetname" =~ ".*%%.*" ]]
 then
     appdataFile=$(find $(pwd)/src/$package -name "*.appdata.xml")
     if [[ -z "$appdataFile" ]]; then
         echo "error: No AndroidManifest.xml or *.appdata.xml file :("
         exit 1
     fi
     targetname=`python3 $DIR/target-from-appdata.py $appdataFile | tr '\n' ';' | head -c -1`
 fi
 
 build-kde-project $package Applications -DQTANDROID_EXPORTED_TARGET=$targetname $EXTRA $@
 
 pushd build/$package
 
 if [ -f /keys/${package}keystore-config ]; then
     ARGS="`cat /keys/${package}keystore-config` $ARGS" make create-apk
 elif [ -f /keys/androidkeystore-config ]; then
     ARGS="`cat /keys/androidkeystore-config` $ARGS" make create-apk
 else
     make create-apk
 fi
 
 if [ -d /output ]
 then
     find *_build_apk/build/outputs/apk/ -name \*.apk -print0 | xargs -I{} -0 cp -v {} /output
 fi
diff --git a/system-images/android/sdk/build-gstreamer-binaries b/system-images/android/sdk/build-gstreamer-binaries
index 07d1f50..7cc1e2f 100644
--- a/system-images/android/sdk/build-gstreamer-binaries
+++ b/system-images/android/sdk/build-gstreamer-binaries
@@ -1,21 +1,21 @@
 #!/bin/bash
 set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 wget -c https://gstreamer.freedesktop.org/data/pkg/android/1.15.2/gstreamer-1.0-android-universal-1.15.2.tar.bz2
 tar xvf gstreamer-1.0-android-universal-1.15.2.tar.bz2
 sed -i.bak -e 's|^prefix=.*|prefix=/opt/kdeandroid-deps|g' armv7/lib/pkgconfig/*.pc #fix prefix
 sed -i.bak -e 's|/home/nirbheek/projects/repos/gst/cerbero.git/build/dist/android_universal/armv7|/opt/kdeandroid-deps|g' armv7/lib/pkgconfig/*.pc
 sed -i.bak -e 's|/home/nirbheek/projects/repos/gst/cerbero.git/build/android-ndk-18|/opt/android-ndk|g' armv7/lib/pkgconfig/*.pc
 cp -r armv7/* /opt/kdeandroid-deps/
 
-git clone git://anongit.freedesktop.org/gstreamer/gst-plugins-good
+git clone --depth 1 git://anongit.freedesktop.org/gstreamer/gst-plugins-good
 cd gst-plugins-good/ext/qt
 
 export PKG_CONFIG_SYSROOT_DIR=/
 export PKG_CONFIG_LIBDIR=/opt/kdeandroid-deps/lib/pkgconfig/
 
 qmake
 make
 install libgstqmlgl.a /opt/kdeandroid-deps/lib/gstreamer-1.0
diff --git a/system-images/android/sdk/build-kde-dependencies b/system-images/android/sdk/build-kde-dependencies
index cc0fae6..8eed86f 100755
--- a/system-images/android/sdk/build-kde-dependencies
+++ b/system-images/android/sdk/build-kde-dependencies
@@ -1,35 +1,35 @@
 #!/bin/bash
 set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export PATH=$DIR:$PATH
 
 # we get the repositories for the dependencies
-git clone kde:sysadmin/ci-tooling || true
+git clone --depth 1 kde:sysadmin/ci-tooling || true
 pushd ci-tooling
-git clone kde:sysadmin/repo-metadata || true
-git clone kde:kde-build-metadata || true
+git clone --depth 1 kde:sysadmin/repo-metadata || true
+git clone --depth 1 kde:kde-build-metadata || true
 popd
 
 # we figure out the dependencies
 all_packages=$(python3 ci-tooling/helpers/list-dependencies.py $@ $EXTRA_PKGS --platform AndroidQt5.12)
 echo "Dependencies to build: $all_packages"
 
 blacklist="`cat $DIR/skip` $SKIP"
 for a in $extrapackages $all_packages $EXTRA_PKGS
 do
     skip=0
     for x in $blacklist
     do
         if [[ $a =~ ^$x$ ]]; then
             skip=1
             break
         fi
     done
     if [ $skip == 1 ]; then
         echo "Skipping $a $skip"
         continue
     fi
 
     build-kde-project $a Frameworks -DBUILD_TESTING=OFF
 done
diff --git a/system-images/android/sdk/build-openssl-uptodate b/system-images/android/sdk/build-openssl-uptodate
index c9c6607..d8043a6 100644
--- a/system-images/android/sdk/build-openssl-uptodate
+++ b/system-images/android/sdk/build-openssl-uptodate
@@ -1,16 +1,16 @@
 #!/bin/bash
 
 set -e
 
-git clone git://git.openssl.org/openssl.git --branch OpenSSL_1_1_1a
+git clone --depth 1 git://git.openssl.org/openssl.git --branch OpenSSL_1_1_1a
 
 pushd openssl
 
 export PATH=/opt/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/:$PATH
 export ANDROID_NDK=$ANDROID_NDK_ROOT
 ./Configure android-arm -D__ANDROID_API__=21 --prefix=/opt/kdeandroid-deps
 make build_libs -j`nproc` SHLIB_VERSION_NUMBER= SHLIB_EXT=.so
 make install_sw SHLIB_VERSION_NUMBER= SHLIB_EXT=.so
 
 popd
 rm -rf openssl
diff --git a/system-images/android/sdk/build-poppler b/system-images/android/sdk/build-poppler
index 2a88f0c..b43ab6f 100755
--- a/system-images/android/sdk/build-poppler
+++ b/system-images/android/sdk/build-poppler
@@ -1,22 +1,22 @@
 #!/bin/bash
 set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export PATH=$DIR:$PATH
 
 mkdir -p $HOME/src/
 cd $HOME/src/
 
 if [ ! -d freetype2 ] ; then
-    git clone https://git.savannah.gnu.org/git/freetype/freetype2.git --single-branch -b VER-2-8-1
+    git clone --depth 1 https://git.savannah.gnu.org/git/freetype/freetype2.git --single-branch -b VER-2-8-1
 fi
 cd freetype2
 CFLAGS=-std=gnu99 build-standalone "./autogen.sh && ./configure --prefix=/opt/kdeandroid-deps --host=${ANDROID_NDK_TOOLCHAIN_PREFIX} && make -j`nproc` && make install"
 
 cd
 #we could build for older than 24 if we pass HAVE_FSEEKO=0
 if [ "$QMAKESPEC" -ne android-clang ] ; then
     export GIT_EXTRA="--branch poppler-0.68.0"
 fi
 
 build-cmake poppler git://anongit.freedesktop.org/poppler/poppler -DENABLE_DCTDECODER=unmaintained -DENABLE_LIBOPENJPEG=unmaintained -DENABLE_CPP=OFF -DCMAKE_ANDROID_API=24 -DBUILD_QT5_TESTS=OFF -DENABLE_UTILS=OFF $@
diff --git a/system-images/android/sdk/build-qt b/system-images/android/sdk/build-qt
index 2aa242b..c1270e7 100755
--- a/system-images/android/sdk/build-qt
+++ b/system-images/android/sdk/build-qt
@@ -1,22 +1,22 @@
 #!/bin/bash
 
 set -e
 
 name=$1
 shift
 repo=$1
 shift
 
 srcdir=`pwd`/src
 mkdir -p $srcdir
 pushd $srcdir
-if [ -d $name ] ; then pushd $name; git pull; popd; else git clone $repo $GIT_EXTRA; fi
+if [ -d $name ] ; then pushd $name; git pull; popd; else git clone --depth 1 $repo $GIT_EXTRA; fi
 popd
 
 mkdir -p build/$name
 pushd build/$name
 qmake PREFIX=/opt/kdeandroid-deps $srcdir/$name $@
 make -j`nproc`
 sudo make install
 rm -rf *
 popd
diff --git a/system-images/android/sdk/build-vlcqt b/system-images/android/sdk/build-vlcqt
index af62847..0e16556 100644
--- a/system-images/android/sdk/build-vlcqt
+++ b/system-images/android/sdk/build-vlcqt
@@ -1,28 +1,28 @@
 #!/bin/bash
 set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export PATH=$DIR:$PATH
 
 export ANDROID_SDK=$ANDROID_SDK_ROOT
 
 sudo apt install -y autopoint
 
 mkdir -p $HOME/src/
 cd $HOME/src/
 
 if [ ! -d vlc-android ] ; then
-    git clone https://github.com/videolan/vlc-android.git
+    git clone --depth 1 https://github.com/videolan/vlc-android.git
 fi
 
 cd vlc-android
 ./compile-libvlc.sh -a armeabi-v7a
 
 cp /home/user/src/vlc-android/libvlc/jni/obj/local/armeabi-v7a/libvlc.so /opt/kdeandroid-deps/lib/
 VLC_INSTALL_PREFIX=/home/user/src/vlc-android/vlc/build-android-arm-linux-androideabi/install
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 EXTRA_PREFIXES=$VLC_INSTALL_PREFIX $DIR/build-cmake vlc-qt https://github.com/vlc-qt/vlc-qt.git -DWITH_GLES=ON \
     -DECM_ADDITIONAL_FIND_ROOT_PATH=$VLC_INSTALL_PREFIX/ \
     -DLIBVLC_INCLUDE_DIR=$VLC_INSTALL_PREFIX/include/ \
     -DLIBVLC_LIBRARY=/home/user/src/vlc-android/libvlc/jni/obj/local/armeabi-v7a/libvlc.so \
     -DLIBVLCCORE_LIBRARY=$VLC_INSTALL_PREFIX/lib/libvlccore.a