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

  outputs = { self, flakeUtils, nixpkgs }:
    let
      utils = import ./utils.nix;

      lib = {
        # Convert Nix expressions to HTML
        tags = import ./tags.nix { inherit utils; };
        # Convert Nix expressions to CSS
        css = import ./css.nix { inherit utils; };

        # Various site templaters
        templaters = {
          # Basic templater with purecss, mobile responsive layout and supports posts
          basic = import ./templaters/basic.nix;
        };
      };

      overlay = final: prev: {
        htmlNix = (import ./pkgs-lib.nix { pkgs = prev; utils = utils // { inherit (lib) tags css; }; }) // lib;
      };
    in
    { inherit overlay; } //
    (flakeUtils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; overlays = [ overlay ]; };
      in
      {
        lib = lib // {
          pkgsLib = import ./pkgs-lib.nix { inherit pkgs; utils = utils // { inherit (lib) tags css; }; };
        };

        apps = with flakeUtils.lib; {
          site = mkApp {
            drv = import ./examples/site.nix { inherit lib pkgs; };
            name = "serve";
          };
          basicServe = mkApp {
            drv = import ./examples/serve.nix { inherit (lib) tags; inherit pkgs; };
            name = "serve";
          };
        };

        examples = {
          tags = import ./examples/tags.nix lib.tags;
        };
      }));
}