diff --git a/geos.nix b/geos.nix
deleted file mode 100644
index 4dce586..0000000
--- a/geos.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-with import <nixpkgs> {};
-#{ composableDerivation, fetchurl, python }:
-
-let inherit (composableDerivation) edf; in
-
-composableDerivation.composableDerivation {} rec {
-
-  flags =
-  # python and ruby untested 
-    edf { name = "python"; enable = { buildInputs = [ python ]; }; };
-    # (if args.use_svn then ["libtool" "autoconf" "automake" "swig"] else [])
-    # // edf { name = "ruby"; enable = { buildInputs = [ ruby ]; };}
-
-    #name = "geos-3.6.1";
-    #sha256 = "1icz31kd5sml2kdxhjznvmv33zfr6nig9l0i6bdcz9q9g8x4wbja";
-  name = "geos-3.5.0";
-
-  src = fetchurl {
-    url = "http://download.osgeo.org/geos/${name}.tar.bz2";
-    sha256 = "00mfs2qriamqypia5r86p3g4wd955sw3dcfs6crsar7sphijp629";
-  };
-
-  enableParallelBuilding = true;
-
-  meta = {
-    description = "C++ port of the Java Topology Suite (JTS)";
-    homepage = http://geos.refractions.net/;
-    license = "GPL";
-  };
-}