{
  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";
    personalpkgs.url = "github:langedev/nixpkgs/nixos-unstable";
    hyprland.url = "github:hyprwm/Hyprland";
  };

  outputs = { self, nixpkgs, personalpkgs, hyprland, ... }:
  let
    personal-overlay = final: prev: {
      personal = personalpkgs.legacyPackages.${prev.system};
    };
  in {
    nixosConfigurations.onizuka = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        ({ config, pkgs, ... }: { nixpkgs.overlays = [ personal-overlay ]; })
        hyprland.nixosModules.default
        { programs.hyprland.enable = true; }
        ./systems/shared
        ./systems/onizuka
      ];
    };

    nixosConfigurations.jibril = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        ({ config, pkgs, ... }: { nixpkgs.overlays = [ personal-overlay ]; })
        hyprland.nixosModules.default
        { programs.hyprland.enable = true; }
        ./systems/shared
        ./systems/jibril
      ];
    };
  };
}