diff --git a/crates/bevy_openxr/examples/actions.rs b/crates/bevy_openxr/examples/actions.rs
index 3a77df4..c06fbcd 100644
--- a/crates/bevy_openxr/examples/actions.rs
+++ b/crates/bevy_openxr/examples/actions.rs
@@ -21,8 +21,8 @@ fn main() {
         .add_systems(Update, handle_flight_input)
         // Realtime lighting is expensive, use ambient light instead
         .insert_resource(AmbientLight {
-            color: Default::default(),
             brightness: 500.0,
+            ..AmbientLight::default()
         })
         .run();
 }
@@ -48,7 +48,7 @@ fn setup_scene(
 
     commands.spawn((
         Camera3d::default(),
-         Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Vec3::Y),
+        Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Vec3::Y),
     ));
 }
 
@@ -132,14 +132,15 @@ fn handle_flight_input(
                 //hard code speed for now
                 let speed = 5.0;
 
-                let root = oxr_root.get_single_mut();
+                let root = oxr_root.single_mut();
                 match root {
                     Ok(mut root_position) => {
                         //lets assume HMD based direction for now
                         let view = views.first();
                         match view {
                             Some(v) => {
-                                let reference_quat = root_position.rotation * v.pose.orientation.to_quat();
+                                let reference_quat =
+                                    root_position.rotation * v.pose.orientation.to_quat();
                                 let locomotion_vector = reference_quat.mul_vec3(input_vector);
 
                                 root_position.translation +=
diff --git a/crates/bevy_openxr/examples/overlay.rs b/crates/bevy_openxr/examples/overlay.rs
index 800a7b6..183b482 100644
--- a/crates/bevy_openxr/examples/overlay.rs
+++ b/crates/bevy_openxr/examples/overlay.rs
@@ -49,23 +49,23 @@ fn handle_input(
 ) {
     if keys.just_pressed(KeyCode::KeyE) {
         info!("sending end");
-        end.send_default();
+        end.write_default();
     }
     if keys.just_pressed(KeyCode::KeyC) {
         info!("sending create");
-        create.send_default();
+        create.write_default();
     }
     if keys.just_pressed(KeyCode::KeyD) {
         info!("sending destroy");
-        destroy.send_default();
+        destroy.write_default();
     }
     if keys.just_pressed(KeyCode::KeyB) {
         info!("sending begin");
-        begin.send_default();
+        begin.write_default();
     }
     if keys.just_pressed(KeyCode::KeyR) {
         info!("sending request exit");
-        request_exit.send_default();
+        request_exit.write_default();
     }
 }
 
diff --git a/crates/bevy_openxr/examples/raw_actions.rs b/crates/bevy_openxr/examples/raw_actions.rs
index 9d3a032..4b7cc7a 100644
--- a/crates/bevy_openxr/examples/raw_actions.rs
+++ b/crates/bevy_openxr/examples/raw_actions.rs
@@ -35,7 +35,7 @@ fn main() {
 }
 
 fn attach_set(actions: Res<ControllerActions>, mut attach: EventWriter<OxrAttachActionSet>) {
-    attach.send(OxrAttachActionSet(actions.set.clone()));
+    attach.write(OxrAttachActionSet(actions.set.clone()));
 }
 
 #[derive(Resource)]
@@ -45,7 +45,7 @@ struct ControllerActions {
     right: openxr::Action<Posef>,
 }
 fn sync_actions(actions: Res<ControllerActions>, mut sync: EventWriter<OxrSyncActionSet>) {
-    sync.send(OxrSyncActionSet(actions.set.clone()));
+    sync.write(OxrSyncActionSet(actions.set.clone()));
 }
 /// set up a simple 3D scene
 fn setup(
@@ -82,12 +82,12 @@ fn suggest_action_bindings(
     actions: Res<ControllerActions>,
     mut bindings: EventWriter<OxrSuggestActionBinding>,
 ) {
-    bindings.send(OxrSuggestActionBinding {
+    bindings.write(OxrSuggestActionBinding {
         action: actions.left.as_raw(),
         interaction_profile: "/interaction_profiles/oculus/touch_controller".into(),
         bindings: vec!["/user/hand/left/input/grip/pose".into()],
     });
-    bindings.send(OxrSuggestActionBinding {
+    bindings.write(OxrSuggestActionBinding {
         action: actions.right.as_raw(),
         interaction_profile: "/interaction_profiles/oculus/touch_controller".into(),
         bindings: vec!["/user/hand/right/input/grip/pose".into()],
diff --git a/crates/bevy_openxr/examples/sessions.rs b/crates/bevy_openxr/examples/sessions.rs
index 20d7b3b..2b14816 100644
--- a/crates/bevy_openxr/examples/sessions.rs
+++ b/crates/bevy_openxr/examples/sessions.rs
@@ -32,23 +32,23 @@ fn handle_input(
 ) {
     if keys.just_pressed(KeyCode::KeyE) {
         info!("sending end");
-        end.send_default();
+        end.write_default();
     }
     if keys.just_pressed(KeyCode::KeyC) {
         info!("sending create");
-        create.send_default();
+        create.write_default();
     }
     if keys.just_pressed(KeyCode::KeyD) {
         info!("sending destroy");
-        destroy.send_default();
+        destroy.write_default();
     }
     if keys.just_pressed(KeyCode::KeyB) {
         info!("sending begin");
-        begin.send_default();
+        begin.write_default();
     }
     if keys.just_pressed(KeyCode::KeyR) {
         info!("sending request exit");
-        request_exit.send_default();
+        request_exit.write_default();
     }
     if keys.just_pressed(KeyCode::KeyI) {
         info!("current state: {:?}", *state);
diff --git a/crates/bevy_openxr/examples/transform_utils.rs b/crates/bevy_openxr/examples/transform_utils.rs
index 08b6161..9bda156 100644
--- a/crates/bevy_openxr/examples/transform_utils.rs
+++ b/crates/bevy_openxr/examples/transform_utils.rs
@@ -28,8 +28,8 @@ fn main() {
             send_recenter.after(XRUtilsActionSystemSet::SyncActionStates),
         )
         .insert_resource(AmbientLight {
-            color: Default::default(),
             brightness: 500.0,
+            ..AmbientLight::default()
         })
         .run();
 }
@@ -161,7 +161,7 @@ fn send_look_at_red_cube_event(
                     info!("send facing");
                     let quat = Transform::default()
                         .looking_at(Transform::from_xyz(4.0, 0.0, 0.0).translation, Vec3::Y); //this is a transform facing the red cube from the center of the scene, you should use the HMD posision but I was lazy.
-                    event_writer.send(SnapToRotation(quat.rotation));
+                    event_writer.write(SnapToRotation(quat.rotation));
                 }
             }
             XRUtilsActionState::Float(_) => (),
@@ -185,7 +185,7 @@ fn send_recenter(
                 if send {
                     let center = Transform::default().translation;
 
-                    event_writer.send(SnapToPosition(center));
+                    event_writer.write(SnapToPosition(center));
                 }
             }
             XRUtilsActionState::Float(_) => (),
diff --git a/crates/bevy_openxr/src/openxr/features/overlay.rs b/crates/bevy_openxr/src/openxr/features/overlay.rs
index d4d26dc..e84fa63 100644
--- a/crates/bevy_openxr/src/openxr/features/overlay.rs
+++ b/crates/bevy_openxr/src/openxr/features/overlay.rs
@@ -27,7 +27,7 @@ impl Plugin for OxrOverlayPlugin {
 
 fn handle_overlay_event(event: OxrEventIn, mut writer: EventWriter<OxrOverlaySessionEvent>) {
     if let Event::MainSessionVisibilityChangedEXTX(event) = *event {
-        writer.send(OxrOverlaySessionEvent::MainSessionVisibilityChanged {
+        writer.write(OxrOverlaySessionEvent::MainSessionVisibilityChanged {
             visible: event.visible(),
             flags: event.flags(),
         });
diff --git a/crates/bevy_openxr/src/openxr/layer_builder.rs b/crates/bevy_openxr/src/openxr/layer_builder.rs
index 23fe790..d7ac8ec 100644
--- a/crates/bevy_openxr/src/openxr/layer_builder.rs
+++ b/crates/bevy_openxr/src/openxr/layer_builder.rs
@@ -9,7 +9,7 @@ use crate::resources::*;
 use crate::spaces::OxrSpaceExt as _;
 
 pub trait LayerProvider {
-    fn get<'a>(&'a self, world: &'a World) -> Option<Box<dyn CompositionLayer + 'a>>;
+    fn get<'a>(&'a self, world: &'a World) -> Option<Box<dyn CompositionLayer<'a> + 'a>>;
 }
 
 pub struct ProjectionLayer;
@@ -117,7 +117,7 @@ impl<'a> SwapchainSubImage<'a> {
     }
 }
 
-impl<'a> Default for SwapchainSubImage<'a> {
+impl Default for SwapchainSubImage<'_> {
     fn default() -> Self {
         Self::new()
     }
@@ -165,11 +165,15 @@ impl<'a> CompositionLayerProjectionView<'a> {
         self
     }
 }
-impl<'a> Default for CompositionLayerProjectionView<'a> {
+impl Default for CompositionLayerProjectionView<'_> {
     fn default() -> Self {
         Self::new()
     }
 }
+/// # Safety
+/// the header function must return a ref to a valid Composition Layer struct. 
+/// it has to use `repr(C)` and it has to follow the shape of a Composition Layer struct from the
+/// OpenXR specification
 pub unsafe trait CompositionLayer<'a> {
     fn swapchain(&self) -> Option<&'a OxrSwapchain>;
     fn header(&self) -> &sys::CompositionLayerBaseHeader;
@@ -227,7 +231,7 @@ unsafe impl<'a> CompositionLayer<'a> for CompositionLayerProjection<'a> {
         unsafe { mem::transmute(&self.inner) }
     }
 }
-impl<'a> Default for CompositionLayerProjection<'a> {
+impl Default for CompositionLayerProjection<'_> {
     fn default() -> Self {
         Self::new()
     }
diff --git a/crates/bevy_openxr/src/openxr/reference_space.rs b/crates/bevy_openxr/src/openxr/reference_space.rs
index b797f70..bdc77f7 100644
--- a/crates/bevy_openxr/src/openxr/reference_space.rs
+++ b/crates/bevy_openxr/src/openxr/reference_space.rs
@@ -20,18 +20,10 @@ impl Default for OxrReferenceSpacePlugin {
     }
 }
 
-/// Resource specifying what the type should be for [`OxrPrimaryReferenceSpace`]. Set through [`OxrReferenceSpacePlugin`].
+/// Resource specifying what the type should used be for the [`XrPrimaryReferenceSpace`]. Set through [`OxrReferenceSpacePlugin`].
 #[derive(Resource)]
 struct OxrDefaultPrimaryReferenceSpaceType(openxr::ReferenceSpaceType);
 
-/// The Default Reference space used for locating things
-// #[derive(Resource, Deref, ExtrctResource, Clone)]
-// pub struct OxrPrimaryReferenceSpace(pub Arc<openxr::Space>);
-
-/// The Reference space used for locating spaces on this entity
-#[derive(Component)]
-pub struct OxrReferenceSpace(pub openxr::Space);
-
 impl Plugin for OxrReferenceSpacePlugin {
     fn build(&self, app: &mut App) {
         app.add_plugins(ExtractResourcePlugin::<XrPrimaryReferenceSpace>::default())
diff --git a/crates/bevy_openxr/src/openxr/render.rs b/crates/bevy_openxr/src/openxr/render.rs
index e359bdc..3ffa06c 100644
--- a/crates/bevy_openxr/src/openxr/render.rs
+++ b/crates/bevy_openxr/src/openxr/render.rs
@@ -1,4 +1,3 @@
-
 use bevy::{
     prelude::*,
     render::{
@@ -251,7 +250,6 @@ pub fn update_views(
     views: ResMut<OxrViews>,
 ) {
     for (mut transform, mut projection, camera) in query.iter_mut() {
-        println!("we have this query");
         let Some(view) = views.get(camera.0 as usize) else {
             continue;
         };
@@ -271,11 +269,6 @@ pub fn update_views(
         );
         projection.projection_matrix = projection_matrix;
 
-        println!(
-            "Updateing projectinon matrix to: {:#?}",
-            projection.projection_matrix
-        );
-
         let openxr::Quaternionf { x, y, z, w } = view.pose.orientation;
         let rotation = Quat::from_xyzw(x, y, z, w);
         transform.rotation = rotation;
diff --git a/crates/bevy_openxr/src/openxr/resources.rs b/crates/bevy_openxr/src/openxr/resources.rs
index d69de13..080cc96 100644
--- a/crates/bevy_openxr/src/openxr/resources.rs
+++ b/crates/bevy_openxr/src/openxr/resources.rs
@@ -288,10 +288,6 @@ impl OxrSwapchain {
 #[derive(Debug, Deref, Resource, Clone, Copy, ExtractResource)]
 pub struct OxrSwapchainImages(pub &'static [wgpu::Texture]);
 
-/// Thread safe wrapper around [openxr::Space] representing the stage.
-// #[derive(Deref, Clone, Resource)]
-// pub struct OxrStage(pub Arc<openxr::Space>);
-
 /// Stores the latest generated [OxrViews]
 #[derive(Clone, Resource, ExtractResource, Deref, DerefMut, Default)]
 pub struct OxrViews(pub Vec<openxr::View>);
diff --git a/crates/bevy_xr/src/camera.rs b/crates/bevy_xr/src/camera.rs
index 68f4d91..805a09a 100644
--- a/crates/bevy_xr/src/camera.rs
+++ b/crates/bevy_xr/src/camera.rs
@@ -1,19 +1,14 @@
 use core::panic;
 
-use bevy::app::{App, Plugin, PostUpdate};
+use bevy::app::{App, Plugin};
 use bevy::core_pipeline::core_3d::Camera3d;
-use bevy::ecs::component::{Component, HookContext, Mutable, StorageType};
-use bevy::ecs::reflect::ReflectComponent;
-use bevy::ecs::world::DeferredWorld;
+use bevy::ecs::component::Component;
 use bevy::math::{Mat4, Vec3A, Vec4};
-use bevy::pbr::{PbrPlugin, PbrProjectionPlugin};
-use bevy::prelude::{Projection, SystemSet};
+use bevy::prelude::SystemSet;
 use bevy::reflect::std_traits::ReflectDefault;
 use bevy::reflect::Reflect;
-use bevy::render::camera::{CameraProjection, CameraProjectionPlugin, CustomProjection};
+use bevy::render::camera::CameraProjection;
 use bevy::render::extract_component::{ExtractComponent, ExtractComponentPlugin};
-use bevy::render::view::{update_frusta, VisibilitySystems};
-use bevy::transform::TransformSystem;
 
 use crate::session::XrTracker;
 
@@ -21,17 +16,7 @@ pub struct XrCameraPlugin;
 
 impl Plugin for XrCameraPlugin {
     fn build(&self, app: &mut App) {
-        /*app.add_plugins(CameraProjectionPlugin::<XrProjection>::default());
-        app.add_systems(
-            PostUpdate,
-            update_frusta::<XrProjection>
-                .after(TransformSystem::TransformPropagate)
-                .before(VisibilitySystems::UpdateFrusta),
-        );
-        if app.is_plugin_added::<PbrPlugin>() {
-            app.add_plugins(PbrProjectionPlugin::<XrProjection>::default());
-        }*/
-        app.add_plugins((ExtractComponentPlugin::<XrCamera>::default(),));
+        app.add_plugins(ExtractComponentPlugin::<XrCamera>::default());
     }
 }
 
@@ -45,10 +30,6 @@ pub struct XrProjection {
     pub near: f32,
 }
 
-fn on_projection_add(mut world: DeferredWorld, HookContext { entity, .. }: HookContext) {
-    world.commands().entity(entity).remove::<Projection>();
-}
-
 impl Default for XrProjection {
     fn default() -> Self {
         Self {
@@ -124,7 +105,6 @@ pub fn calculate_projection(near_z: f32, fov: Fov) -> Mat4 {
     // let y_fov = (self.fov.angle_up.abs() + self.fov.angle_down.abs());
     // return Mat4::perspective_infinite_reverse_rh(y_fov, x_fov / y_fov, self.near);
 
-    let is_vulkan_api = false; // FIXME wgpu probably abstracts this
     let far_z = -1.; //   use infinite proj
                      // let far_z = self.far;
 
@@ -141,11 +121,7 @@ pub fn calculate_projection(near_z: f32, fov: Fov) -> Mat4 {
     // positive Y up (OpenGL / D3D / Metal).
     // const float tanAngleHeight =
     //     graphicsApi == GRAPHICS_VULKAN ? (tanAngleDown - tanAngleUp) : (tanAngleUp - tanAngleDown);
-    let tan_angle_height = if is_vulkan_api {
-        tan_angle_down - tan_angle_up
-    } else {
-        tan_angle_up - tan_angle_down
-    };
+    let tan_angle_height = tan_angle_up - tan_angle_down;
 
     // Set to nearZ for a [-1,1] Z clip space (OpenGL / OpenGL ES).
     // Set to zero for a [0,1] Z clip space (Vulkan / D3D / Metal).
diff --git a/crates/bevy_xr/src/session.rs b/crates/bevy_xr/src/session.rs
index bb79d5f..5506a3b 100644
--- a/crates/bevy_xr/src/session.rs
+++ b/crates/bevy_xr/src/session.rs
@@ -3,7 +3,7 @@ use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
 
 use bevy::app::{AppExit, MainScheduleOrder};
-use bevy::ecs::component::{HookContext, Mutable, StorageType};
+use bevy::ecs::component::HookContext;
 use bevy::ecs::schedule::ScheduleLabel;
 use bevy::ecs::world::DeferredWorld;
 use bevy::prelude::*;
@@ -216,7 +216,7 @@ impl Plugin for XrSessionPlugin {
 }
 
 fn exits_session_on_app_exit(mut request_exit: EventWriter<XrRequestExitEvent>) {
-    request_exit.send_default();
+    request_exit.write_default();
 }
 
 /// Event sent by backends whenever [`XrState`] is changed.
@@ -258,18 +258,18 @@ pub fn auto_handle_session(
         match state {
             XrState::Available => {
                 if !*no_auto_restart {
-                    create_session.send_default();
+                    create_session.write_default();
                 }
             }
             XrState::Ready => {
-                begin_session.send_default();
+                begin_session.write_default();
             }
             XrState::Stopping => {
-                end_session.send_default();
+                end_session.write_default();
             }
             XrState::Exiting { should_restart } => {
                 *no_auto_restart = !should_restart;
-                destroy_session.send_default();
+                destroy_session.write_default();
             }
             _ => (),
         }
@@ -280,7 +280,7 @@ pub fn update_root_transform(
     mut root_transform: ResMut<XrRootTransform>,
     root: Query<&GlobalTransform, With<XrTrackingRoot>>,
 ) {
-    let Ok(transform) = root.get_single() else {
+    let Ok(transform) = root.single() else {
         return;
     };
 
diff --git a/crates/bevy_xr_utils/src/transform_utils.rs b/crates/bevy_xr_utils/src/transform_utils.rs
index 0dff9aa..2c126d8 100644
--- a/crates/bevy_xr_utils/src/transform_utils.rs
+++ b/crates/bevy_xr_utils/src/transform_utils.rs
@@ -45,7 +45,7 @@ pub fn handle_transform_events(
                     }
 
                     //rotation
-                    let root_local = root_transform.translation.clone();
+                    let root_local = root_transform.translation;
                     let hmd_global =
                         root_transform.rotation.mul_vec3(view_translation) + root_local;
                     let view_rot = view.pose.orientation.to_quat();