{
  description = "nixos config";

  inputs = {
    # nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixpkgs.follows = "nixos-cosmic/nixpkgs";

    nur.url = "github:/nix-community/NUR";

    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    helix = {
      url = "github:helix-editor/helix";
      # inputs.nixpkgs.follows = "nixpkgs";
    };

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nix-index-database = {
      url = "github:Mic92/nix-index-database";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nix-rice.url = "github:bertof/nix-rice";

    nixd.url = "github:nix-community/nixd";

    nix-ld-rs = {
      url = "github:nix-community/nix-ld-rs";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flatpaks.url = "github:gmodena/nix-flatpak";

    nixos-cosmic = {
      url = "github:lilyinstarlight/nixos-cosmic";
      # inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = {
    self,
    nixpkgs,
    nixos-cosmic,
    home-manager,
    nur,
    helix,
    flatpaks,
    nixd,
    nix-ld-rs,
    nix-index-database,
    nix-rice,
    ...
  } @ inputs: let
    inherit (self) outputs;
  in {
    overlays = import ./util/overlay.nix {inherit inputs;};

    nixosConfigurations = {
      "quiver" = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {inherit inputs outputs;};
        modules = [
          nixos-cosmic.nixosModules.default
          nur.nixosModules.nur
          nix-index-database.nixosModules.nix-index
          ./system/quiver.nix
          ./system/cachix.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.extraSpecialArgs = {inherit inputs outputs;};
            home-manager.users.bolt.imports = [
              flatpaks.homeManagerModules.nix-flatpak
              ./home/bolt.nix
            ];
          }
        ];
      };

      "adrift" = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {inherit inputs outputs;};
        modules = [
          nur.nixosModules.nur
          nix-index-database.nixosModules.nix-index
          ./system/adrift.nix
          ./system/cachix.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.extraSpecialArgs = {inherit inputs outputs;};
            home-manager.users.plank.imports = [
              flatpaks.homeManagerModules.nix-flatpak
              ./home/plank.nix
            ];
          }
        ];
      };
    };
  };
}