init: Add crossbox's configurations

radicale.nix

@@ -0,0 +1,37 @@
+{ config, pkgs, lib, ... }:
+
+{
+  services.radicale = {
+    enable = true;
+
+    # Configuration settings
+    settings = {
+      server = {
+        hosts = [ "127.0.0.1:5232" "[::1]:5232" ];
+      };
+      
+      # Authentication (you can customize this)
+      auth = {
+        type = "htpasswd";
+        htpasswd_filename = "/srv/radicale/users";
+        htpasswd_encryption = "bcrypt";
+      };
+      
+      # Storage configuration
+      storage = {
+        filesystem_folder = "/srv/radicale/collections";
+      };
+      
+      # Logging
+      logging = {
+        level = "info";
+      };
+
+      rights = {
+        type = "from_file";
+        file = "/srv/radicale/rights";
+      };
+    };
+
+  };
+}