lets actually commit for once...

lib/options/default.nix

@@ -0,0 +1,38 @@
+{ lib, ...}:
+let
+  inherit (builtins) isString typeOf;
+  inherit (lib) mkOption types throwIfNot concatStringsSep splitStringBy toLower map;
+in
+{
+  options = {
+    mkUrlOptions = 
+      defaults:
+      {
+        host = mkOption {
+          type = types.str;
+          example = "host.tld";
+          description = ''
+            Hostname
+          '';
+        } // (defaults.host or {});
+
+        port = mkOption {
+          type = types.port;
+          default = 1234;
+          example = "1234";
+          description = ''
+            Port
+          '';
+        } // (defaults.port or {});
+
+        protocol = mkOption {
+          type = types.str;
+          default = "https";
+          example = "https";
+          description = ''
+            Which protocol to use when creating a url string
+          '';
+        } // (defaults.protocol or {});
+      };
+  };
+}