Thoses plugins must be copied inside KiCad's python plugins directory (~/.kicad_plugins or /usr/share/kicad/scripting/plugins/ for Linux). Most of them use python ...
export USER_ID=$(id -u) export GROUP_ID=$(id -g) export WORKDIR=RELATIVE_PATH_TO_KICAD_PROJECTS export SUBDIR=SUBDIR_INSIDE_WORKDIR docker run --rm -it -v /tmp/.X11 ...