{
  description = "Home Manager configuration of Jane Doe";

  # Specify the source of Home Manager and Nixpkgs and vim plugins.
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-22.05";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, nixpkgs-stable, home-manager, ... }:
    let
      system = "x86_64-linux";
      overlay = nixpkgs.lib.composeManyExtensions [
          (final: prev: {
            vimPlugins = prev.vimPlugins // {
              nvim-treesitter = prev.vimPlugins.nvim-treesitter.overrideAttrs (old: {
                version = "2022-10-28";
                src = builtins.fetchGit {
                  url = "file:///home/mike/projects/nvim-treesitter";
                  rev = "2c0ae6e8e81366ba088f1e5be62f467212cda52e";
                };
                passthru.withPlugins = 
                  grammarFn: final.vimPlugins.nvim-treesitter.overrideAttrs (_: {
                    postPatch =
                      let
                        grammars = prev.tree-sitter.withPlugins grammarFn;
                      in
                      ''
                        rm -r parser
                        ln -s ${grammars} parser
                      '';
                  });
              });
            };
          })
      ];

      pkgs = import nixpkgs {
        overlays = [ 
          overlay
        ];
        inherit system;
      };
    in {

      homeConfigurations.mike = home-manager.lib.homeManagerConfiguration {
        pkgs = pkgs;
        # Specify your home configuration modules here, for example,
        # the path to your home.nix.
        modules = [
          ./home.nix
        ];

        # Optionally use extraSpecialArgs
        # to pass through arguments to home.nix
        extraSpecialArgs = {
          flake = self;
        };
      };
    };
}