Currently source-based installation is provided.
First of all open a terminal and create an empty workspace:
mkdir ~/talos_public_ws cd ~/talos_public_ws
Download the file talos_tutorials.rosinstall. Copy the rosinstall file in ~/talos_public_ws. Then run the following instruction in order to clone all the required repositories within the workspace:
rosinstall src /opt/ros/melodic talos_public.rosinstall
Set up rosdep
sudo rosdep init rosdep update
Then you may run the following instruction to make sure that all dependencies referenced in the workspace are installed
rosdep install -y --from-paths src --ignore-src --rosdistro melodic --skip-keys="opencv2 pal_laser_filters speed_limit_node sensor_to_cloud hokuyo_node libdw-dev gmock walking_utils rqt_current_limit_controller simple_grasping_action reemc_init_offset_controller walking_controller current_limit_controller urdf_test"
Then, you may proceed building the workspace:
source /opt/ros/melodic/setup.bash catkin build -DCATKIN_ENABLE_TESTING=0
Once you compiled all packages and sourced the environment (source devel/setup.bash) it's all ready to go.