Raspberry OS or Home Assistant OS


I’m new to raspberry and new to Home Assistant. I’m building a new house from scratch and I’m going to take this approach (raspberry + hassio).

My raspberry will also operate as NAS server, some basic FW rules, and for Hassio (with unifi controller module as well apart from all IoT stuff).

My question is, if I install Home Assistant OS with the Gui, I won’t be able to use my raspberry for the other things (nas, fw)? Maybe it’s a better option to use Raspberry OS and then, install HomeAssistant there? In this second case, I will be able to install the Hassio GUI?

Thanks in advance.

Thanks Tom.

My raspberry is also the 4GB model. I will try!