diff --git a/bazel-0.28.1-0.build.sh b/bazel-0.28.1-0.build.sh
new file mode 100755
index 0000000..b53a265
--- /dev/null
+++ b/bazel-0.28.1-0.build.sh
@@ -0,0 +1,51 @@
+#! /bin/bash
+
+# https://docs.bazel.build/versions/master/install-compile-source.html#bootstrap-bazel
+
+PKG=bazel
+VERSION=0.28.1
+BUILD=0
+
+PREFIX=/pkg/$PKG-$VERSION-$BUILD
+if [ -n "$TESTING" ]; then PREFIX=/dev/shm/$PKG-$VERSION-$BUILD ; fi
+
+set -xe
+umask 022
+
+BUILD_TMPDIR=/dev/shm/$PKG-$VERSION-$BUILD.build.tmp
+test -d $BUILD_TMPDIR && ( chmod -R u+rwx $BUILD_TMPDIR || true ; rm -rf $BUILD_TMPDIR )
+mkdir -p $BUILD_TMPDIR/home
+export TMPDIR=$BUILD_TMPDIR
+export HOME=$BUILD_TMPDIR/home
+
+exec </dev/null
+
+mkdir -p $PREFIX
+cat >$PREFIX/profile <<-EOF
+	PATH=$PREFIX/bin:\$PATH
+	if [ -d $PREFIX/.compatlibs ]; then export LD_LIBRARY_PATH=$PREFIX/.compatlibs\${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH} ; fi
+EOF
+. $PREFIX/profile
+
+BUILDDIR=$PREFIX/build
+
+mkdir -p $BUILDDIR
+cd $BUILDDIR
+
+# https://github.com/bazelbuild/bazel/releases/download/0.28.1/bazel-0.28.1-dist.zip
+test -e bazel-$VERSION-dist.zip || wget https://beehive.molgen.mpg.de/223c08978f68ac650df0c30bffb75422/bazel-0.28.1-dist.zip
+if [ ! -d bazel-$VERSION ]; then
+  mkdir bazel-$VERSION
+  unzip -q bazel-$VERSION-dist.zip -d bazel-$VERSION
+fi
+cd bazel-$VERSION
+
+# Quote: "You must install version 8 of the JDK. Versions other than 8 are not supported."
+source /package/pkg/jdk-8u141-0/profile
+
+EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" bash ./compile.sh
+
+mkdir -p $PREFIX/bin
+cp -vp output/bazel $PREFIX/bin
+
+exit
diff --git a/cuda-10.2.89-1.build.sh b/cuda-10.2.89-1.build.sh
new file mode 100755
index 0000000..ac80a78
--- /dev/null
+++ b/cuda-10.2.89-1.build.sh
@@ -0,0 +1,140 @@
+#! /bin/bash
+
+PKG=cuda
+MAJOR=10.2
+MINOR=89
+VERSION=$MAJOR.$MINOR
+BUILD=1
+DRIVERVERSION=440.33.01
+
+CUDNNVER=7.6.5.32
+CUDNNFILE=cudnn-$MAJOR-linux-x64-v$CUDNNVER.tgz
+
+TENSORRTVER=7.0.0.11
+TENSORRTFILE=TensorRT-$TENSORRTVER.Ubuntu-18.04.x86_64-gnu.cuda-10.2.cudnn7.6.tar.gz
+
+NCCLVER=2.5.6-2
+NCCLFILE=nccl_$NCCLVER+cuda10.2_x86_64.txz
+
+PREFIX=/pkg/$PKG-$VERSION-$BUILD
+if [ -n "$TESTING" ]; then PREFIX=/dev/shm/$PKG-$VERSION-$BUILD ; fi
+
+set -e
+umask 022
+
+# be carefull on machines with 8Gig and less
+BUILD_TMPDIR=/dev/shm/$PKG-$VERSION-$BUILD.build.tmp
+test -d $BUILD_TMPDIR && rm -rf $BUILD_TMPDIR
+mkdir -p $BUILD_TMPDIR/home
+export TMPDIR=$BUILD_TMPDIR
+export HOME=$BUILD_TMPDIR/home
+
+exec </dev/null
+
+mkdir -p $PREFIX
+cat >$PREFIX/profile <<-EOF
+	PATH=$PREFIX/bin:\$PATH
+	export CUDA_PATH=$PREFIX
+	LD_LIBRARY_PATH=$PREFIX/lib\${LD_LIBARRY_PATH:+:}\$LD_LIBARRY_PATH
+	if [ -d $PREFIX/.compatlibs ]; then LD_LIBRARY_PATH=$PREFIX/.compatlibs:\$LD_LIBARRY_PATH; fi
+	export LD_LIBRARY_PATH
+EOF
+. $PREFIX/profile
+
+cd $PREFIX
+BUILDDIR=$PREFIX/build
+
+mkdir -p $BUILDDIR
+cd $BUILDDIR
+
+INSTALLFILE=cuda_${VERSION}_${DRIVERVERSION}_linux.run
+URL=https://developer.nvidia.com/compute/cuda/$MAJOR/Prod/local_installers/$INSTALLFILE
+
+# in case it was downloaded before
+if [ ! -e $INSTALLFILE -a -e /package/cuda/src/$INSTALLFILE ]; then
+  cp -vp /package/cuda/src/$INSTALLFILE $INSTALLFILE
+fi
+
+if [ ! -e $INSTALLFILE ]; then
+  wget $URL
+fi
+
+rm -rf cuda_tmp
+mkdir -p cuda_tmp
+bash $INSTALLFILE --extract=$BUILDDIR/cuda_tmp --nox11
+
+cd cuda_tmp
+
+### reorganize the tree a bit ###
+cd cuda-toolkit
+
+# dump javabased nsight profiler
+rm -rf nsight-compute-* nsight-systems-* libnsight nsightee_plugins
+
+# stuff some of the 'extras' into 'share', but keep
+# - nvvm (nvidia virtual machine, see bin/nvcc.profile)
+# - extras (or tensorflow 2.1.0 would need extra tweaks, nerve)
+mv doc libnvvp nvml tools share
+
+# 'elevate' libs and includes
+rm include lib64
+mv targets/x86_64-linux/* .
+
+rm -r targets
+
+# adjust nvcc.profile for TARGET_DIR and TARGET_SIZE
+sed -e 's,$(_TARGET_SIZE_),,g' \
+    -e 's,/$(_TARGET_DIR_),,g' \
+    -i bin/nvcc.profile
+
+### return ###
+cd $BUILDDIR/cuda_tmp
+
+# obviously a name change was overlooked
+sed -i -e '/^SAMPLES_SRC/ s,samples,../cuda-samples,' cuda-samples/bin/cuda-install-samples-10.2.sh
+
+# we don't need this distro aware handler for finding glut & co
+for D in $(find -name findgllib.mk -exec dirname {} \;) ; do
+  test -e $D/Makefile && sed -i -e '/findgllib.mk/ s/include/# include/' $D/Makefile
+done
+
+# install and merge cublas (which is pretty redundant)
+mv cuda-toolkit/* $PREFIX
+mv cublas/lib64 cublas/lib
+cp -au cublas/* $PREFIX
+rm -r cublas/*
+mv cuda-samples $PREFIX/share
+
+# cudNN
+cd $BUILDDIR
+test -e $CUDNNFILE || cp /package/cuda/src/$CUDNNFILE .
+mkdir -p cudnn
+cd cudnn
+tar -xf ../$CUDNNFILE
+mv cuda/include/cudnn.h $PREFIX/include
+mv cuda/lib64/libcudnn* $PREFIX/lib
+mv cuda/NVIDIA_SLA_cuDNN_Support.txt $PREFIX/share/doc
+
+# TensorRT
+cd $BUILDDIR
+test -e $TENSORRTFILE || cp /package/cuda/src/$TENSORRTFILE .
+mkdir -p TensorRT
+cd TensorRT
+tar -xf ../$TENSORRTFILE
+mv TensorRT-$TENSORRTVER/bin/* $PREFIX/bin
+mv TensorRT-$TENSORRTVER/include/* $PREFIX/include
+mv TensorRT-$TENSORRTVER/lib/stubs/* $PREFIX/lib/stubs
+rmdir TensorRT-$TENSORRTVER/lib/stubs
+mv TensorRT-$TENSORRTVER/lib/* $PREFIX/lib
+
+# nccl - aka 'nickel'
+cd $BUILDDIR
+test -e $NCCLFILE || cp /package/cuda/src/$NCCLFILE .
+mkdir -p nccl
+cd nccl
+tar -xf ../$NCCLFILE
+mv nccl_$NCCLVER+cuda10.2_x86_64/include/* $PREFIX/include
+mv nccl_$NCCLVER+cuda10.2_x86_64/lib/lib* $PREFIX/lib
+mv nccl_$NCCLVER+cuda10.2_x86_64/LICENSE.txt $PREFIX/share/doc/nccl_LICENSE.txt
+
+exit