{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    utils.url = "github:numtide/flake-utils";

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

    pypi-deps-db.url = "github:DavHau/pypi-deps-db";
    pypi-deps-db.inputs.nixpkgs.follows = "nixpkgs";

    mach-nix.url = "github:DavHau/mach-nix/master";
    mach-nix.inputs.nixpkgs.follows = "nixpkgs";
    mach-nix.inputs.pypi-deps-db.follows = "pypi-deps-db";
  };

  outputs = {self, nixpkgs, flake-utils, home-manager, mach-nix, ...}: let
    pkgsForSystem = (system: import nixpkgs {
      inherit system;
      overlays = [
        self.overlays."${system}".xonsh_with_plugins
      ];
    });

    mkHomeConfig = ({system, username ? "ttm" }: home-manager.lib.homeManagerConfiguration {
      pkgs = pkgsForSystem system;
      modules = [
        ./home.nix
        {
          home = {
            inherit username;
          };
        }
      ];
    });
  in
    flake-utils.lib.eachDefaultSystem (system: {
      overlays.xonsh_with_plugins = import ./overlays/xonsh.nix { mach-nix = mach-nix.lib."${system}"; };
      legacyPackages.homeConfigurations.std = mkHomeConfig { inherit system; };
    });
    # {
    #   overlays.xonsh_with_plugins.x86_64-linux = import ./overlays/xonsh.nix { mach-nix = mach-nix.lib."x86_64-linux"; };
    #   overlays.xonsh_with_plugins.x86_64-darwin = import ./overlays/xonsh.nix { mach-nix = mach-nix.lib."x86_64-darwin"; };
    #   homeConfigurations.linux = mkHomeConfig { system="x86_64-linux"; };
    #   homeConfigurations.mac = mkHomeConfig { system="x86_64-darwin"; };
    # };
}