{
inputs.nixpkgs.url = "flake:nixpkgs";
outputs = inputs: let
  pkg = "symantic-base";
  lib = inputs.nixpkgs.lib;
  forAllSystems = f: lib.genAttrs lib.systems.supported.hydra (system: f rec {
    inherit system;
    pkgs = inputs.nixpkgs.legacyPackages.${system};
    haskellPackages = pkgs.haskellPackages.extend (with pkgs.haskell.lib; hfinal: hsuper: {
      ${pkg} = buildFromSdist (hfinal.callCabal2nix pkg ./. {});
    });
  });
  in {
    # nix -L build
    defaultPackage = forAllSystems ({haskellPackages, ...}: haskellPackages.${pkg});
    # nix -L develop
    devShell = forAllSystems ({pkgs, haskellPackages, ...}:
      haskellPackages.shellFor {
        packages = ps: [ ps.${pkg} ];
        nativeBuildInputs = [
          haskellPackages.cabal-install
          haskellPackages.ghcid
          haskellPackages.haskell-language-server
          haskellPackages.hlint
          pkgs.git-chglog
          pkgs.reuse
        ];
        withHoogle = false;
      });
  };
}