anchor.diff: -{ lib, stdenv
  +{ lib
  +, stdenv
   , desktop-file-utils
   , fetchFromGitHub
  +, calf
   , fftwFloat
   , glib
   , glibmm
  
positive.code:     patchShebangs meson_post_install.py
    '';
  
    separateDebugInfo = true;
  
    meta = with lib; {
  
negative.code: , libsamplerate
  , libsndfile
  , lilv
  , lsp-plugins
  , lv2
  , meson
  , ninja
  