Using existing Raspberry Pi 4

Hello! I’m new here and just getting into home automation using rpi, arduino, and esp8266.

Can I simultaneously use my Raspberry Pi running rasbian and use home assistant, or does home assistant require a dedicated device just for home automation? This question might already have been answered, but I couldn’t find it.
Thanks!

If you use venv or docker you can use Raspbian as is.

Thanks to both of your replies!
I will check these out.

you can also install home-assistant using docker (HASS.core) or Supervisor Generic Linux if you want to run raspbian