{
  description = "Definition of the Seattle NixOps network.";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-21.05";

    fudo-secrets.url = "path:/state/secrets";

    fudo-nixos = {
      url = "path:/state/nixops/fudo-nixos";
      # url = "git+ssh://fudo_git@git.fudo.org:2222/fudosys/NixOS.git?ref=nixops-flake";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, fudo-nixos, ... } @ inputs: with nixpkgs.lib;
    let
      deployment = import ../../common/deployment.nix {
        description = "Seattle NixOps network";
        deployment-hosts = let
          domain = "sea.fudo.org";
        in filterAttrs
          (hostname: hostOpts: hostOpts.domain == domain)
          fudo-nixos.fudoHosts;
      };
    in {
      nixopsConfigurations.default = (deployment inputs);
    };
}