diff --git a/Cargo.toml b/Cargo.toml
index c5d4d44..920935b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,12 @@ edition = "2021"
 [dependencies]
 bevy = "0.14.2"
 bevy_rapier2d = "0.27.0"
+
+# Enable a small amount of optimization in the dev profile.
+[profile.dev]
+opt-level = 1
+
+# Enable a large amount of optimization in the dev profile for dependencies.
+[profile.dev.package."*"]
+opt-level = 3
+
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..dd3a797 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,13 @@
+use bevy::prelude::*;
+use bevy_rapier2d::prelude::*;
+
+mod player {}
+
+const METER: f32 = 120.;
+
 fn main() {
-    println!("Hello, world!");
+    App::new()
+        .add_plugins(DefaultPlugins)
+        .add_plugins(RapierPhysicsPlugin::<NoUserData>::pixels_per_meter(METER))
+        .run();
 }