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Description
With the none backend, after deploying a configuration that is missing services.openssh.enable = true, subsequent deploys do not work very well (as might be expected).
I accidentally did so twice while playing with nixops over the weekend. (Once by forgetting to add it, and the other by misuse of the // operator.) Fortunately, I had an ssh session open at the time, so I was able to nixos-rebuild test and redeploy.