Accessing Raspberry outside the docker container

Hello everybody! I have a Home Assistant for Raspberry Pi. Installed HomeAssistant through the official image Home Assistant OS. As far as I understand, the HA is in the container. How do I access Raspberry outside the container? So that I can installinstall Transmission, Plex and Samba on Raspberry? The option with addons is not considered.
Only:
apt-get install transmission-daemon
apt-get install samba
apt-get install plexmediaserver