# Spack https://github.com/WireCell/wire-cell-spack ```bash! spack uninstall --dependents eigen@3.3.9 path-prepend /home/hyu/opt/eigen/v3_3_9a/share/pkgconfig PKG_CONFIG_PATH spack install --fresh wire-cell-toolkit@0.20.0 ^eigen@3.3.9 spack find --deps wire-cell-toolkit spack load wire-cell-toolkit@0.20.0 ``` ```bash! wire-cell -l stdout -L debug -V input="depos.tar.bz2" -V output="frames.tar.bz2" -c wct-sim.jsonnet ```