I found a YouTube video about this application about a month ago and last week I tried installing it on docker but it didn't go so well. I read that it needed a 64 bit is to run mongo DB and everything I had seen said it didn't run on a raspberry pi. I looked again today and found an article on installing 64 bit Ubuntu on a raspberry pi using the new raspberry pi imager application.
So I grabbed a pi 4 and installed Ubuntu. It took me two tries to get vnc working but then I went through the steps for installing OctoFarm in a ‘production’ environment and got it up and running. The only issue I had was that the controls weren't working and then I found another YouTube video describing that you have to enable CORS on octoprint then everything started working.
Definitely check it out if you run octoprint and multiple printers.