anchor.diff:    buildInputs = [
       xorg.glamoregl
       libdrm
  +    libpciaccess
       opengl-dummy
       systemd_lib
       xorg-server
  
positive.code: 
  #, glamoregl
  , libdrm
  , opengl-dummy
  , systemd_lib
  , xorg-server
  
negative.code:         outputHash
          outputHashAlgo
          urls;
        fullOpts = {
          pgpsigUrls = map (n: "${n}.sig") src.urls;
          pgpKeyFingerprints = [
            # Michel Daenzer
            "B09F AF35 BE91 4521 9809  5114 5A81 AF8E 6ADB B200"
          ];
        };
        failEarly = true;
      };
    };
  