diff --git a/app/src/main.rs b/app/src/main.rs
index 1ed30ea..3ff8460 100644
--- a/app/src/main.rs
+++ b/app/src/main.rs
@@ -21,6 +21,9 @@ fn main() {
             PhysicsPlugins::default(),
         ))
         .insert_resource(Time::<Physics>::default().with_relative_speed(5.0))
+        .insert_resource(DefaultRestitution(
+            Restitution::PERFECTLY_ELASTIC.with_combine_rule(CoefficientCombine::Max),
+        ))
         .add_systems(Startup, setup)
         .add_systems(
             Update,
@@ -75,7 +78,7 @@ fn spawn_ball(
         commands.spawn((
             RigidBody::Dynamic,
             Collider::circle(CIRCLE_RADIUS),
-            Restitution::PERFECTLY_ELASTIC.with_combine_rule(CoefficientCombine::Max),
+            LinearVelocity(Vec2::new(time.elapsed_secs().sin(), time.elapsed_secs().cos()) * 100.0),
             Mesh2d(meshes.add(Circle::new(CIRCLE_RADIUS))),
             MeshMaterial2d(materials.add(Color::hsl(time.elapsed_secs().sin() * 360.0, 1.0, 0.5))),
             Transform::from_xyz(world_position.x, world_position.y, 0.0),
diff --git a/build-wasm.sh b/build-wasm.sh
index 36a086e..e88ed8b 100755
--- a/build-wasm.sh
+++ b/build-wasm.sh
@@ -5,7 +5,7 @@ PROFILE="${1:-release}"
 
 if [ "$PROFILE" = "dev" ]; then
     PROFILE_DIR="debug"
-    CARGO_FLAGS=""
+    CARGO_FLAGS="--features=bevy/dynamic_linking"
 else
     PROFILE_DIR="release"
     CARGO_FLAGS="--release"
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 23674e6..62098d5 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
 channel = "1.98.1"
-targets = ["wasm32-unknown-unknown", "x86_64-unknown-linux-gnu"]
+targets = ["wasm32-unknown-unknown"]
 components = ["clippy", "rust-analyzer", "rustfmt"]