How to add raspberry pi camera in HA

Hello everyone, I cannot get a general Rasberry Pi camera to work.
I am on HassOS 4.10 with Home Assistant 0.110.6 on a Rasberry Pi 3 B+.
The camera: https://www.aliexpress.com/item/32726563700.html
I have used the integration: Raspberry Pi Camera
I have added the following in my configuration.yaml

rpi_camera:
  name: 3D printer camera

I have no error messages in the log.
Under developer tools / states I see the camera: camera.3d_printer_camera and it shows idle.
When I press the little i (info) I do not see any image.
When I add it to lovelace i do not get to see any image:

aspect_ratio: 50%
camera_image: camera.raspberry_pi_camera
entity: camera.3d_printer_camera
show_state: true
tap_action:
  action: toggle
type: picture-entity

The picture should be here:

entity_picture: /api/camera_proxy/camera.3d_printer_camera?token=[token]

However, I cannot find the folder api anywhere, using the file editor.
The documentation suggest that the file_path should be whitelisted, but I do not have “home assistant:” in my configuration.yaml so i have no clue where to add that…

What should I do? What can I do to make it work?