diff --git a/src/lib.rs b/src/lib.rs
index 4b7a90b..9f19514 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,9 @@
 pub mod board;
 pub mod colors;
 pub mod snake;
+
+use bevy::prelude::*;
+
+pub fn tick() {
+    info!("tick!");
+}
diff --git a/src/main.rs b/src/main.rs
index 8571466..9d3caac 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@ use bevy::prelude::*;
 use snake::{
     board::{spawn_board, Board},
     snake::{spawn_snake, Snake},
+    tick,
 };
 
 fn main() {
@@ -18,10 +19,12 @@ fn main() {
         }))
         .insert_resource(Board::new(20))
         .init_resource::<Snake>()
+        .insert_resource(Time::<Fixed>::from_seconds(0.1))
         .add_systems(
             Startup,
             (setup, spawn_board, spawn_snake),
         )
+        .add_systems(FixedUpdate, tick)
         .run();
 }