{ cabal, transformers }:

cabal.mkDerivation (self: {
  pname = "knob";
  version = "0.1.1";
  sha256 = "05qj7s04p5pbasivyxc06l0jbii250zjnvb3l1y2sfhglb7q8b4c";
  buildDepends = [ transformers ];
  meta = {
    homepage = "https://john-millikin.com/software/knob/";
    description = "Memory-backed handles";
    license = self.stdenv.lib.licenses.mit;
    platforms = self.ghc.meta.platforms;
  };
})