git-hyperpull: fix shell file

development/tools/git-hyperpull/shell.nix

@@ -1,6 +1,8 @@
 with (import <nixpkgs> {});
-(import <nom/raku.nix>).overrideAttrs ({ ... }:
-  {
-    name = "git-hyperpull";
-    LD_LIBRARY_PATH = lib.makeLibraryPath [ pkgs.libssh ];
-  })
+
+stdenv.mkDerivation {
+  name = "rust-devel";
+  buildInputs = with pkgs; [
+    rakudo openssh
+  ];
+}