export SPACK_USER_CONFIG_PATH=~/.spack
export SPACK_USER_CACHE_PATH=/tmp/spack-$USER
spack config edit config
config:
install_tree:
root: /scratch/lustre/home/rona1043/.spack
source_cache: /tmp/spack-rona1043/source
spack env create -d test
spack env activate -d test