I found some help.
Basically I think Start9 is dumb because when Core is running, there is not an Install button on Knots. When Core is uninstalled, the Install button for Knots magically appears.
My gripe is why couldn’t Start9 program their user interface such that Knots had an inactive, greyed out Install button with a message explaining how to activate the Install button and instructions on how to uninstall conflicting software implementations.
Also, there is not an uninstall button on the main “page” for Core on Start9. Uninstall is buried under the Actions menu. I had, in my mind, encoded all of the menus as “shit I don’t know shit about” so I didn’t look through any of them. I assumed that the devs would have put an uninstall button somewhere near the bottom.
