diff --git a/flex/src/bashly.yml b/flex/src/bashly.yml
deleted file mode 100644
index d67ad22c46ed..000000000000
--- a/flex/src/bashly.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-name: flexbuild
-help: Utility script to build artifacts for GraphScope Flex
-version: 0.1.0
-
-# environment_variables:
-# - name: api_key
-#   help: Set your API key
-
-args:
-- name: components
-  help: Components (LEGO bricks) to include and link
-  allowed: [cppsp, builtin, hiactor, gaia, grape-cpu, grape-gpu, vineyard, mcsr, gnnmodels, graphlearn, tensorflow]
-  required: true
-  repeatable: true
-
-flags:
-- long: --app
-  short: -a
-  arg: atype
-  required: true
-  allowed: [db, olap, ldbcdriver, gnn]
-  help: Application type
-
-- long: --output_dir
-  short: -o
-  help: Output prefix
-  arg: name
-  default: .
-
-examples:
-- ./flexbuild cppsp hiactor mcsr --app db --output_dir ./output
-- ./flexbuild builtin grape-cpu --app olap
-- ./flexbuild builtin grape-gpu --app ldbcdriver
diff --git a/flex/src/initialize.sh b/flex/src/initialize.sh
deleted file mode 100644
index 868d376707f7..000000000000
--- a/flex/src/initialize.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-## Code here runs inside the initialize() function
-## Use it for anything that you need to run before any other function, like
-## setting environment variables:
-## CONFIG_FILE=settings.ini
-##
-## Feel free to empty (but not delete) this file.
diff --git a/flex/src/root_command.sh b/flex/src/root_command.sh
deleted file mode 100644
index 6dbf6118ccfc..000000000000
--- a/flex/src/root_command.sh
+++ /dev/null
@@ -1,131 +0,0 @@
-# echo "# this file is located in 'src/root_command.sh'"
-# echo "# you can edit it freely and regenerate (it will not be overwritten)"
-# inspect_args
-
-function build_grape_cpu {
-  target_name=$1
-
-  tmp_dir=`mktemp -d`
-  pushd ${tmp_dir} > /dev/null
-  cmake_options=""
-  # if [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
-  if [[ $(uname -s) == Linux* ]];then
-    # Do something under GNU/Linux platform
-    if grep -q avx512 /proc/cpuinfo; then
-      cmake_options="${cmake_options} -DUSE_SIMD=ON"
-    fi
-    if grep -q HugePages_Total /proc/meminfo; then
-      hpn=`grep HugePages_Total /proc/meminfo | cut -d ':' -f 2`
-      if [[ $hpn -gt 0 ]]; then
-        cmake_options="${cmake_options} -DUSE_HUGEPAGES=ON"
-      fi
-    fi
-  fi
-  cmd="git clone https://github.com/alibaba/libgrape-lite.git && cd libgrape-lite && git submodule update --init --recursive && mkdir build && cd build && cmake ${cmake_options} .. && make analytical_apps -j && mv run_app ${target_name}"
-  echo $cmd
-  eval $cmd
-  popd > /dev/null
-}
-
-function build_grape_gpu {
-  target_name=$1
-  if nvidia-smi &> /dev/null; then
-    tmp_dir=`mktemp -d`
-    pushd ${tmp_dir} > /dev/null
-    cmd="git clone https://github.com/alibaba/libgrape-lite.git && cd libgrape-lite && git submodule update --init --recursive && mkdir build && cd build && cmake .. && make gpu_analytical_apps -j && mv run_cuda_app ${target_name}"
-    echo $cmd
-    eval $cmd
-    popd > /dev/null
-  else
-    echo "Building libgrape-gpu failed: GPU is not found"
-  fi
-}
-
-function build_grape_ldbc_driver {
-  package_name=$1
-
-  tmp_dir=`mktemp -d`
-  pushd ${tmp_dir} > /dev/null
-  cmd="git clone https://github.com/alibaba/libgrape-lite.git && cd libgrape-lite/ldbc_driver/ && mvn package && mv graphalytics-*-bin.tar.gz ${package_name}"
-  echo $cmd
-  eval $cmd
-  popd > /dev/null
-}
-
-SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
-
-ars=()
-
-output_dir=`realpath ${args[--output_dir]}`
-mkdir -p ${output_dir}
-
-if [ ${args[--app]} == "db" ]; then
-  package_name="graphscope_flex_${args[--app]}"
-  comps=""
-  eval "comps=(${args[components]})"
-  for i in "${comps[@]}"; do
-    package_name="${package_name}_${i}"
-  done
-  build_dir=`mktemp -d`
-  pushd $build_dir > /dev/null
-  cmd="cmake -DCPACK_PACKAGE_NAME=${package_name} ${SCRIPT_DIR} && make -j && make package && mv ${package_name}*.deb ${output_dir}/"
-  echo $cmd
-  eval $cmd
-  fname=`ls ${output_dir}/*.deb`
-  ars+=("${fname}")
-  popd > /dev/null
-elif [ ${args[--app]} == "olap" ]; then
-  target_name="graphscope_flex_${args[--app]}"
-  comps=""
-  eval "comps=(${args[components]})"
-  for i in "${comps[@]}"; do
-    target_name="${target_name}_${i}"
-  done
-  if [[ " ${comps[*]} " =~ " grape-cpu " ]]; then
-    build_grape_cpu ${output_dir}/${target_name}
-  elif [[ " ${comps[*]} " =~ " grape-gpu " ]]; then
-    build_grape_gpu ${output_dir}/${target_name}
-  fi
-  ars+=("${target_name}")
-elif [ ${args[--app]} == "ldbcdriver" ]; then
-  target_name="graphscope_flex_olap"
-  comps=""
-  eval "comps=(${args[components]})"
-  for i in "${comps[@]}"; do
-    target_name="${target_name}_${i}"
-  done
-  if [[ " ${comps[*]} " =~ " grape-cpu " ]]; then
-    build_grape_cpu ${output_dir}/${target_name}
-  elif [[ " ${comps[*]} " =~ " grape-gpu " ]]; then
-    build_grape_gpu ${output_dir}/${target_name}
-  fi
-
-  package_name="graphscope_flex_ldbcdriver"
-  for i in "${comps[@]}"; do
-    package_name="${package_name}_${i}"
-  done
-  package_name="${package_name}-SNAPSHOT-bin.tar.gz"
-
-  build_grape_ldbc_driver ${output_dir}/${package_name}
-  ars+=("${package_name}")
-
-elif [ ${args[--app]} == "gnn" ]; then
-  target_name="graphscope_flex_gnn_gnnmodels_graphlearn_tensorflow_vineyard"
-  pushd ${SCRIPT_DIR}/../ > /dev/null
-  make learning
-  mv learning_engine/graph-learn/graphlearn/built/lib/libgraphlearn_shared* ${output_dir}/
-  fname=`ls ${output_dir}/libgraphlearn_shared*`
-  ext="${fname##*.}"
-  mv ${fname} ${output_dir}/${target_name}.${ext}
-  ars+=("${target_name}.${ext}")
-  popd > /dev/null
-else
-  echo "$(red Unsupported composition: ${args[--app]} and ${args[components]})"
-fi
-
-echo "$(green_bold GraphScope Flex artifacts for customized deployment are built.)"
-echo 
-echo "artifacts: "
-for x in "${ars[@]}"; do
-  echo "$(green $x)"
-done