fix opensnitch (was completely borked)

overlays/default.nix

@@ -39,5 +39,6 @@
         ./factorio.nix
         ./ranger.nix
         ./ncspot.nix
+        ./grpcio-tools.nix
       ];
 }

overlays/grpcio-tools.nix

@@ -0,0 +1,28 @@
+{ prev, final, ... }:
+{
+  pythonPackagesOverlays = [
+    (python-final: python-prev: {
+
+      grpcio-tools = python-prev.grpcio-tools.overrideAttrs (old: {
+        version = "1.64.1";
+
+        src = prev.fetchPypi {
+          pname = "grpcio_tools";
+          version = "1.64.1";
+          hash = "sha256-crNVC5GtuDVGVuzw9tHUYRKZBEuuEfsefMHRu2a4wes=";
+        };
+      });
+    })
+  ];
+
+  python311 =
+    let
+      self = prev.python311.override {
+        inherit self;
+        packageOverrides = prev.lib.composeManyExtensions final.pythonPackagesOverlays;
+      };
+    in
+    self;
+
+  python311Packages = final.python311.pkgs;
+}