{
  description = "Home Manager configuration of xenia";

  inputs = {
    # Specify the source of Home Manager and Nixpkgs.
    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";

    home-manager = {
      url = "github:nix-community/home-manager/release-23.11";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nix-darwin = {
      url = "github:LnL7/nix-darwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    kak = {
      url = "git+https://githug.xyz/xenia/kakoune.git";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    kak-tree = {
      url = "git+https://githug.xyz/xenia/kak-tree.git";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    unispect = {
      url = "git+https://git@githug.xyz/xenia/unispect";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    ansi-utils = {
      url = "git+https://git@githug.xyz/xenia/ansi-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    unambig-path = {
      url = "git+https://git@githug.xyz/xenia/unambig-path";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    rachel = {
      url = "git+https://git@githug.xyz/rachel/nixos-config";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, nix-darwin, kak, kak-tree, unispect, ansi-utils, unambig-path, rachel }:
    let
      xdg-runtime-dir = "/tmp/xdg-rt";

      mkPkgs = system: import nixpkgs { system = system; config.allowUnfree = true; };
      mkHome = {username, home-dir, prompt-color, system, pkgs} : import ./home/common.nix {
        inherit username home-dir prompt-color pkgs xdg-runtime-dir;

        kak-pkg = kak.packages.${system}.kak;
        unispect = unispect.packages.${system}.unispect;
        ansi-utils = ansi-utils.packages.${system};
        unambig-path = unambig-path.packages.${system}.unambig-path;
        kak-tree = kak-tree.packages.${system}.kak-tree;
      };
      mkPC = {system, pkgs} : import ./home/graphical.nix {
        inherit pkgs xdg-runtime-dir;
      };
      mkLaptop = {system, pkgs} : import ./home/apps.nix {
        inherit pkgs xdg-runtime-dir;
      };

      mkDarwin = {system, pkgs}: import ./darwin.nix {
        inherit system pkgs;
        nixpkgs-flake = nixpkgs;
      };

      mkNixOsBase = opts: import ./nixos/base.nix (opts // { nixpkgs-flake = nixpkgs; });
      mkNixOsGraphical = opts: import ./nixos/graphical.nix (opts // { fox-layout = rachel.keyboardLayouts.fox; });
      mkNixOsNetworking = opts: import ./nixos/networking.nix opts;
    in {
      homeConfigurations."xenia@Joe-Bidens-MacBook-Pro" =
        let
          system = "aarch64-darwin";
          pkgs = mkPkgs system;
          home = mkHome {
            username = "xenia";
            home-dir = "/Users/xenia";
            prompt-color = 172;
            inherit system pkgs;
          };
          pc = mkPC { inherit system pkgs; };
          laptop = mkLaptop { inherit system pkgs; };
        in home-manager.lib.homeManagerConfiguration {
          inherit pkgs;

          modules = [
            home
            pc
            laptop
          ];
        };

      homeConfigurations."coral" =
        let
          system = "x86_64-linux";
          pkgs = mkPkgs system;
          home = mkHome {
            username = "coral";
            home-dir = "/home/coral";
            prompt-color = 243;
            inherit system pkgs;
          };
        in home-manager.lib.homeManagerConfiguration {
          inherit pkgs;

          modules = [
            home
          ];
        };

      homeConfigurations."xenia" =
        let
          system = "x86_64-linux";
          pkgs = mkPkgs system;
          home = mkHome {
            username = "xenia";
            home-dir = "/home/xenia";
            prompt-color = 205;
            inherit system pkgs;
          };
          pc = mkPC { inherit system pkgs; };
        in home-manager.lib.homeManagerConfiguration {
          inherit pkgs;

          modules = [
            home
            pc
          ];
        };

      darwinConfigurations."Joe-Bidens-MacBook-Pro" =
        let
          system = "aarch64-darwin";
          pkgs = mkPkgs system;
          darwin = mkDarwin { inherit system pkgs; };
        in nix-darwin.lib.darwinSystem {
          modules = [ darwin ];
        };

      nixosConfigurations."catboy-cafe" =
        let
          system = "x86_64-linux";
          pkgs = mkPkgs system;
          base = mkNixOsBase {
            inherit system pkgs;
            hostname = "catboy-cafe";
            use-efi = true;
          };
          graphical = mkNixOsGraphical {
            inherit pkgs;
            background = "pan-wire-3.png";
          };
          networking = mkNixOsNetworking {
            eth-interface = "enp0s31f6";
            static-ip = "192.168.0.199";
          };
        in
          nixpkgs.lib.nixosSystem {
            inherit system;
            modules = [
              ./nixos/hardware/catboy-cafe.nix
              base
              graphical
              networking
            ];
          };
    };
}