Camera Nodes for ROS Melodic and Raspberry Pi

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I'm trying to display the output of a camera connected to my Raspberry Pi on using rqt_image_view. I have tried installing the following nodes: raspicam_node (preferred as it would allow me to use my PiCamera) and usb_cam (which would allow me to use a USB camera connected to the RPi, which would also be fine).

I tried to install raspicam_node using these instructions on the GitHub page link text, however when running

rosdep install --from-paths src --ignore-src --rosdistro=melodic -y

I was met with this error:

ERROR: The following packages/stacks could not have their rosdep keys resolved to system dependencies:
raspicam_node: No definition of [camera_info_manager] for OS version [buster]

Attempting to install usb_cam in the same way resulted in the same error.

Both these nodes were made for Kinetic- would there be a way to make these work with Melodic? Or is there another node which does definitely work with Melodic (I have looked but was unable to find any)?

Thanks for any help.