{
  description = "Flake for setting up asciidoctor-foodogsquared-extensions";

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

    ruby-nix.url = "github:inscapist/ruby-nix";
    ruby-nix.inputs.nixpkgs.follows = "nixpkgs";

    ruby-nix-bundix.url = "github:inscapist/bundix";
    ruby-nix-bundix.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = inputs@{ self, ruby-nix, nixpkgs, ... }:
    let systems = inputs.flake-utils.lib.defaultSystems;
    in inputs.flake-utils.lib.eachSystem systems (system:
      let
        pkgs = import nixpkgs { inherit system; };
        gems = ruby-nix.lib pkgs {
          name = "asciidoctor-foodogsquared-extensions";
          ruby = pkgs.ruby_3_1;
          gemset = ./gemset.nix;
        };
      in
      {
        devShells.default =
          import ./shell.nix {
            inherit pkgs;
            extraBuildInputs = [
              gems.env
              gems.ruby
            ];
            extraPackages = [
              inputs.ruby-nix-bundix.packages."${system}".default
            ];
          };

        formatter = pkgs.treefmt;
      });
}