Nixops and DigitalOcean

Would you mind sharing the config you tried + the nixops version?

$ nixops --version
NixOps 1.6

I extracted the following from my service running on DO:

let do = {
    network = {
      enableRollback = true;
      network.description = "...";
    };
    resources.sshKeyPairs.ssh-key = {};

    boop = { resources, pkgs, lib, config, ... }: {
      deployment = {
        targetEnv = "digitalOcean";
        digitalOcean.size = "512mb";
        digitalOcean.region = "ams2";
        keys = {
	  ...
        };
        storeKeysOnMachine = false;
      };
      services.openssh.enable = true;

      boot = {
	kernelPackages = pkgs.linuxPackages_hardened;
      };

      require = [ ./admin-users.nix ];
    };
  };
in do