Let us assume that you have a workspace directory ${WS_DIR}
source /opt/ros/jazzy/setup.bash
cd ${WS_DIR}
mkdir -p src
cd src
git clone https://gitlab.laas.fr/ostasse/gz_gepetto_humanoids_models.git
export IGN_GAZEBO_RESOURCE_PATH=${WS_DIR}/src/gz_gepetto_humanoids_models
export GZ_SIM_RESOURCE_PATH=${WS_DIR}/src/gz_gepetto_humanoids_models
export GZ_SIM_SYSTEM_PLUGIN_PATH=/opt/ros/jazzy/lib
The recommended one is the last one.
Starting TALOS simulation without ROS-2
gz sim ./empty_talos_gz.sdf
gz sim --physics-engine gz-physics7-bullet-featherstone-plugin ./empty_talos_gz.sdf
gz sim --physics-engine gz-physics7-bullet-featherstone-plugin ./empty_talos/empty_talos_gz_wo_ros2_control_ajsfs.sdf