Is there an apt-get way of installing Octoprint?
At the moment, no.
But here is how it could be done.
It is not quite an apt package, but you can easily install it if you have pip installed: pip install OctoPrint
And if you want to install dotnet:
curl -SL -o dotnet.tar.gz https://dotnetcli.blob.core.windows.net/dotnet/Sdk/master/dotnet-sdk-latest-linux-arm.tar.gz sudo mkdir -p /usr/share/dotnet sudo tar -zxf dotnet.tar.gz -C /usr/share/dotnet sudo ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet
EDIT: I managed to get it all up and running. I even managed to do a redirect to get OctoPrint to appear to run on port 80. I'm gonna need to invent a .py script to do all of those operations; as I see myself needing to do it in the future.