Updated 2025-02-03 !
The best way to start with Home Assistant(HA), and Raspberry Pi(RPi), is off course to use the ”Raspberry Pi imager” and in the menu select "Other specific-purpose OS => Home Assistant and home automation => Home Assistant". This will install the HA operating system.
It works very well and here are the install instructions.
On the other hand if you want to add HA to a RPi which you already have up and running, without Docker, you need to install something which is called "Home Assistant Core".
Please check the "Remarks" below before you start.
