I would like to run an ethernet + power from the camera to my attic and connect it to the rest of my network. Attached is the location I would like to have it to monitor the front door + part of the driveway. Is my best/only option to have the wires exposed while running the wire along the hardiplank into the attic? There are boards b/t the two floors preventing me from running the cable vertically down.
You could go through the interior bedroom wall into the space above the camera location, assuming that it is hollow.
Make a hole down low in the bedroom wall and drill with a masonry bit through the mortar.
You will need to make a small hole that would be covered by the camera and use glow-rods or fish tape to fish the line from the bedroom to the camera.
Then run the wire up the bedroom wall into the attic area then to wherever you need for them to go. You will have made some drywall holes but drywall is really easy to fix.