Install Octoprint from within Raspberry PI? Hyperpixel question

I was wondering if there was a way to install Octoprint from within the Raspberry Pi desktop, not from an image. The reason I ask is that I can get the desktop to rotate correctly with my Hyperpixel 4 when using a fresh install of Raspberry Pi. This was great news because I was originally sent a defective screen and this worked great from the instructions I had.

Unfortunately when I try an install with an Octoprint image I get all kinds of errors when I try to rotate the screen. I can get Octodash to appear on the Hyperpixel, but only in portrait mode which is not the way I need it to be. I can reinstall via the Octoprint image and post the actual error messages if that would help, but I was first asking about just the install process.