{
  description = "Alo cluster";

  inputs = {
    deploy-rs.url = "github:serokell/deploy-rs";
    deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
    impermanence.url = "github:nix-community/impermanence";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
  };

  outputs = { self, nixpkgs, deploy-rs, ... }@inputs:
    let
      mkNixos = hostname: modules: nixpkgs.lib.nixosSystem {
        inherit modules;
        specialArgs = { inherit inputs hostname; };
      };
    in {
      nixosConfigurations = {
        c1 = mkNixos "c1" [ ./hosts/c1 ];
      };

      deploy = {
        nodes = {
          c1 = {
            hostname = "c1";
            profiles.system = {
              user = "root";
              path = deploy-rs.lib.x86_64-linux.activate.nixos self.nixosConfigurations.c1;
            };
          };
        };
      };

      checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks self.deploy) deploy-rs.lib;
    };
}