weasel: add custom nix-serve

m/weasel/configuration.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib, pkgs, ... }:
 
 {
   imports = [
@@ -33,4 +33,21 @@
     } ];
   };
 
+  services.nix-serve = {
+    enable = true;
+    # Only listen locally, as we serve it via ssh
+    bindAddress = "127.0.0.1";
+    port = 5000;
+    package = pkgs.nix-serve-ng.overrideAttrs (oldAttrs: {
+      src = pkgs.fetchgit {
+        url = "https://jungle.bsc.es/git/abonerib/nix-serve-ng.git";
+        hash = "sha256-N6c3NozYqAGwmjf+k5GHOZzlcquDntrJwsZQ7O2sqtQ=";
+      };
+    });
+
+    secretKeyFile = "/var/cache-priv-key.pem";
+    # Public key:
+    # 10.0.40.6:8jBhIdXEBap+Qo+vc1/fnV9vj43A2oDk839EEheRr/U=
+  };
+
 }