{
  description = "Price Hiller's flake for managing system configurations";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    impermanence = {
      url = "github:nix-community/impermanence";
    };
    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };


  outputs = inputs @ { self, nixpkgs, impermanence, agenix, ... }:
    let
      inputs.secrets = ./secrets;
      defaults = {
        config = {
          environment.persistence = {
            "/nix/persist" = {
              hideMounts = true;
              directories = [
                "/var/lib"
                "/var/log"
                "/etc/nixos"
                "/opt"
                "/persist"
              ];
              files = [
                "/etc/machine-id"
                "/etc/nix/id_rsa"
              ];
            };
          };

          age.identityPaths = [
            "/persist/nix.key"
          ];
        };
      };
    in
    {
      nixosConfigurations.orion = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = inputs;
        modules = [
          defaults
          ./hosts/orion
          impermanence.nixosModules.impermanence
          agenix.nixosModules.default
        ];
      };
      nixosConfigurations.luna = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = inputs;
        modules = [
          defaults
          ./hosts/luna
          impermanence.nixosModules.impermanence
          agenix.nixosModules.default
        ];
      };
    };
}