{
  description = "Zeusina system manage flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    nix-darwin.url = "github:nix-darwin/nix-darwin/master";
    #    nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
    spicetify-nix.url = "github:Gerg-L/spicetify-nix";
    monaco-nerd-font = {
      url = "github:thep0y/monaco-nerd-font";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = inputs @ {
    self,
    nix-darwin,
    nixpkgs,
    spicetify-nix,
  }: let
    systems = ["x86_64-linux" "aarch64-darwin"];
    forAllSystems = nixpkgs.lib.genAttrs systems;
  in {
    formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.alejandra);

    darwinConfigurations."MacBook-Pro-Kirill" = nix-darwin.lib.darwinSystem {
      specialArgs = {inherit inputs self;};
      modules = [
        ./hosts/MacBook-Pro-Kirill/configuration.nix
        ./shared/programs/spicetify.nix
        inputs.spicetify-nix.darwinModules.default
      ];
    };

    nixosConfigurations = {
      "kachu-pc" = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {inherit inputs self;};
        modules = [
          ./hosts/kachu-pc/hardware-configuration.nix
          ./hosts/kachu-pc/configuration.nix
          ./shared/programs/spicetify.nix
          inputs.spicetify-nix.nixosModules.default
        ];
      };
    };
  };
}