diff --git a/Timeline.org b/Timeline.org
index 61b4a03..7baedb0 100644
--- a/Timeline.org
+++ b/Timeline.org
@@ -29,8 +29,15 @@
     - [ ] VPN setup
 *** TODO Wireguard [0/1] [0%]
     - [ ] Encrypted DNS
-** LEMP stack [0/8] [0%]
-*** TODO Nginx
+** Data sync [0/2] [0%]
+*** IN-PROGRESS Syncthing [0/3] [0%]
+    - [ ] Basic configuration
+    - [ ] Relay server
+    - [ ] Discovery server
+*** TODO Radicale
+** Web stack [0/7] [0%]
+*** TODO Nginx [0/1] [0%]
+    - [ ] Radicale reverse proxy
 *** TODO PHP [0/1] [0%]
     - [ ] Php-fpm
 *** TODO PostgreSQL [0/1] [0%]
@@ -38,18 +45,13 @@
 *** TODO Certbot [0/2] [0%]
     - [ ] Obtain certs
     - [ ] Script to renew certs
-*** TODO Syncthing [0/2] [0%]
-    - [ ] Relay server
-    - [ ] Discovery server
-*** TODO Radicale
 *** TODO Wallabag
 *** TODO Miniflux
 *** TODO Hugo [0/2] [0%]
     - [ ] Blog website
     - [ ] Ox-hugo
 ** Software development [0/2] [0%]
-*** TODO Git [0/2] [0%]
-    - [ ] Gitea
+*** TODO Gitea [0/1] [0%]
     - [ ] Import existing repositories
 *** TODO Drone
 ** Backup [0/2] [0%]
@@ -64,7 +66,7 @@
 ** Workflow [0/1] [0%]
 *** TODO Automate nix files deployment [0/2] [0%]
     - [ ] Send local file to Zion
-    - [ ] Rebuild
+    - [ ] Hook to rebuild
 ** Communication [0/2] [0%]
 *** TODO Matrix
 *** TODO Mail [0/1] [0%]
diff --git a/configuration.nix b/configuration.nix
index eeb2fa1..14fc87a 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -89,6 +89,12 @@
     };
   };
 
+  # Run Nix garbage collector daily
+  nix.gc = {
+    automatic = true;
+    dates = "03:15";
+  };
+
   # Configure fish shell
   #programs.fish.enable = true;
 
@@ -99,6 +105,7 @@
   imports = [
     ./modules/printing.nix
     ./modules/networking.nix
+    ./modules/datasync.nix
   ];
 
 }
diff --git a/modules/datasync.nix b/modules/datasync.nix
new file mode 100644
index 0000000..7d977a4
--- /dev/null
+++ b/modules/datasync.nix
@@ -0,0 +1,42 @@
+# Syncthing and Radicale configuration
+{ config, pkgs, lib, ... }:
+{
+
+  environment.systemPackages = with pkgs; [
+    syncthing
+    syncthing-relay
+    syncthing-discovery
+    radicale
+  ];
+
+  # Enable Syncthing
+  services.syncthing = {
+    enable = true;
+    openDefaultPorts = true;
+    guiAddress = "0.0.0.0:8384";
+    dataDir = "/vault/syncthing";
+    declarative = {
+      devices = {
+        monolith = { id = "QGDGEZQ-INE7XDY-DNX2QI4-QI7ANQJ-57REEO2-FUMH545-FZS5RYU-ULF7HA2"; };
+      };
+      #cert = "";
+      #key = "";
+      folders = {};
+    };
+    #relay = {
+      #enable = true;
+      #pools = "";
+    #};
+  };
+
+  # Enable Radicale
+  services.radicale = {
+    enable = true;
+    config = ''
+
+    '';
+  };
+
+
+
+}
diff --git a/modules/networking.nix b/modules/networking.nix
index 651302d..c1e5839 100644
--- a/modules/networking.nix
+++ b/modules/networking.nix
@@ -32,7 +32,7 @@
 
   # Firewall configuration
   networking.firewall = {
-    allowedTCPPorts = [ 631 6566 ];
+    allowedTCPPorts = [ 631 6566 22067 8384 ];
     autoLoadConntrackHelpers = true;
     connectionTrackingModules = [ "sane" ];
   };