{
  description = "personal NixOS configurations";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";

    home-manager = {
      url = "github:nix-community/home-manager/release-23.11";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    darwin = {
      url = "github:lnl7/nix-darwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    treefmt-nix = {
      url = "github:numtide/treefmt-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    pre-commit-hooks = {
      url = "github:cachix/pre-commit-hooks.nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    devshell.url = "github:numtide/devshell";

    # utils
    futils.url = "github:numtide/flake-utils";
    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  # Output config, or config for NixOS system
  outputs = inputs@{ self, flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      flake =
        let
          mba = import ./flake/mba.nix {
            inherit (inputs) nixpkgs home-manager darwin;
            inherit inputs;
          };
        in
        {
          darwinConfigurations = {
            mba-fcuny = mba.system;
          };
        };

      systems = [
        "aarch64-darwin"
        "x86_64-linux"
      ];

      imports = [
        ./flake/devshell.nix
      ];
    };
}