Shinobi on a Pi 4, cannot install

[/RaspberryPi]

I'm trying to install Shinobi on a fresh Raspberry OS install on a brand new Pi 4 (link to instructions I'm following is below). I'm just at the point of trying to install the Shinobi software itself and getting a "curl: no URL specified!" error. I'm typing it in exactly and can manually navigate to the cdn page so I don't think that's the issue (but I'm very newb to this), I've read through various curl error pages but if there is a simple mistake in the command I'm typing I don't see it.

sudo sh

sh submitted by /u/AngryHumanoid


Source: https://www.reddit.com/r/raspberry_pi/c ... t_install/