{
  inputs = {
    nixpkgs = {
      # --- Official
      # type = "github";
      # owner = "NixOS";
      # repo = "nixpkgs";
      # ref = "master";
      # --- Fork
      type = "github";
      owner = "karaolidis";
      repo = "nixpkgs";
      ref = "integration";
      # --- Local
      # url = "git+file:./submodules/nixpkgs";
    };

    home-manager = {
      # --- Official
      # type = "github";
      # owner = "nix-community"
      # repo = "home-manager";
      # --- Fork
      type = "github";
      owner = "karaolidis";
      repo = "home-manager";
      ref = "integration";
      # --- Local
      # url = "git+file:./submodules/home-manager";

      inputs.nixpkgs.follows = "nixpkgs";
    };

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

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

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

    astal = {
      url = "github:aylur/astal";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    ags = {
      url = "github:aylur/ags";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    spicetify-nix = {
      url = "github:Gerg-L/spicetify-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils = {
      url = "github:numtide/flake-utils";
    };
  };

  outputs =
    { self, nixpkgs, ... }@inputs:
    {
      nixosConfigurations = {
        installer = nixpkgs.lib.nixosSystem rec {
          system = "x86_64-linux";
          modules = [ ./hosts/installer ];
          specialArgs = { inherit inputs system; };
        };

        eirene = nixpkgs.lib.nixosSystem rec {
          system = "x86_64-linux";
          modules = [ ./hosts/eirene ];
          specialArgs = { inherit inputs system; };
        };

        elara = nixpkgs.lib.nixosSystem rec {
          system = "x86_64-linux";
          modules = [ ./hosts/elara ];
          specialArgs = { inherit inputs system; };
        };
      };
    }
    // inputs.flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        devShells = {
          bun = import ./hosts/common/shells/bun { inherit pkgs; };
          c = import ./hosts/common/shells/c { inherit pkgs; };
          go = import ./hosts/common/shells/go { inherit pkgs; };
          java = import ./hosts/common/shells/java { inherit pkgs; };
          nix = import ./hosts/common/shells/nix { inherit pkgs; };
          nodejs = import ./hosts/common/shells/nodejs { inherit pkgs; };
          python = import ./hosts/common/shells/python { inherit pkgs; };
        };

        formatter = pkgs.nixfmt-rfc-style;
      }
    );

}