diff --git a/crates/jolt/Cargo.toml b/crates/jolt/Cargo.toml
index c807d43..2e63287 100644
--- a/crates/jolt/Cargo.toml
+++ b/crates/jolt/Cargo.toml
@@ -7,3 +7,7 @@ edition = "2021"
 
 [dependencies]
 jolt-sys = { path = "../jolt-sys" }
+
+[lints.clippy]
+new_without_default = { level = "allow" }
+too_many_arguments = { level = "allow" }
diff --git a/crates/jolt/src/body_interface.rs b/crates/jolt/src/body_interface.rs
new file mode 100644
index 0000000..e41b0e1
--- /dev/null
+++ b/crates/jolt/src/body_interface.rs
@@ -0,0 +1,13 @@
+use jolt_sys::*;
+
+pub struct BodyInterface(*mut JPC_BodyInterface);
+
+impl BodyInterface {
+    pub(crate) fn new(inner: *mut JPC_BodyInterface) -> Self {
+        Self(inner)
+    }
+
+    pub fn as_raw(&self) -> *mut JPC_BodyInterface {
+        self.0
+    }
+}
diff --git a/crates/jolt/src/interfaces.rs b/crates/jolt/src/interfaces.rs
new file mode 100644
index 0000000..cf5898b
--- /dev/null
+++ b/crates/jolt/src/interfaces.rs
@@ -0,0 +1,65 @@
+use std::ffi::{c_uint, c_void};
+use std::marker::PhantomData;
+use std::ptr;
+
+use jolt_sys::*;
+
+use crate::{BroadPhaseLayer, ObjectLayer};
+
+pub trait IntoBroadPhaseLayerInterface {
+    fn as_raw(&self) -> *mut JPC_BroadPhaseLayerInterface;
+}
+
+pub trait BroadPhaseLayerInterface: Sized {
+    fn get_num_broad_phase_layers(&self) -> u32;
+    fn get_broad_phase_layer(&self, layer: ObjectLayer) -> BroadPhaseLayer;
+
+    fn as_raw(&self) -> *mut JPC_BroadPhaseLayerInterface {
+        type Bridge<T> = BroadPhaseLayerInterfaceBridge<T>;
+
+        let fns = JPC_BroadPhaseLayerInterfaceFns {
+            GetNumBroadPhaseLayers: Some(Bridge::<Self>::GetNumBroadPhaseLayers as _),
+            GetBroadPhaseLayer: Some(Bridge::<Self>::GetBroadPhaseLayer as _),
+        };
+
+        unsafe { JPC_BroadPhaseLayerInterface_new(ptr::from_ref(self).cast::<c_void>(), fns) }
+    }
+}
+
+impl IntoBroadPhaseLayerInterface for *mut JPC_BroadPhaseLayerInterface {
+    fn as_raw(&self) -> *mut JPC_BroadPhaseLayerInterface {
+        *self
+    }
+}
+
+impl<T> IntoBroadPhaseLayerInterface for T
+where
+    T: BroadPhaseLayerInterface,
+{
+    fn as_raw(&self) -> *mut JPC_BroadPhaseLayerInterface {
+        <Self as BroadPhaseLayerInterface>::as_raw(self)
+    }
+}
+
+struct BroadPhaseLayerInterfaceBridge<T> {
+    _phantom: PhantomData<T>,
+}
+
+#[allow(non_snake_case)]
+impl<T: BroadPhaseLayerInterface> BroadPhaseLayerInterfaceBridge<T> {
+    unsafe extern "C" fn GetNumBroadPhaseLayers(this: *const c_void) -> c_uint {
+        let this = this.cast::<T>().as_ref().unwrap();
+
+        this.get_num_broad_phase_layers()
+    }
+
+    unsafe extern "C" fn GetBroadPhaseLayer(
+        this: *const c_void,
+        layer: JPC_ObjectLayer,
+    ) -> JPC_BroadPhaseLayer {
+        let this = this.cast::<T>().as_ref().unwrap();
+        let layer = ObjectLayer(layer);
+
+        this.get_broad_phase_layer(layer).raw()
+    }
+}
diff --git a/crates/jolt/src/lib.rs b/crates/jolt/src/lib.rs
index e99acb6..2c0247c 100644
--- a/crates/jolt/src/lib.rs
+++ b/crates/jolt/src/lib.rs
@@ -1,11 +1,12 @@
-use std::ffi::{c_uint, c_void};
-use std::marker::PhantomData;
-use std::ptr;
+use jolt_sys::*;
 
-use jolt_sys::{
-    JPC_BroadPhaseLayer, JPC_BroadPhaseLayerInterface, JPC_BroadPhaseLayerInterfaceFns,
-    JPC_BroadPhaseLayerInterface_new, JPC_ObjectLayer,
-};
+mod body_interface;
+mod interfaces;
+mod physics_system;
+
+pub use crate::body_interface::*;
+pub use crate::interfaces::*;
+pub use crate::physics_system::*;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct ObjectLayer(JPC_ObjectLayer);
@@ -32,49 +33,3 @@ impl BroadPhaseLayer {
         self.0
     }
 }
-
-pub trait BroadPhaseLayerInterface: Sized {
-    fn get_num_broad_phase_layers(&self) -> u32;
-    fn get_broad_phase_layer(&self, layer: ObjectLayer) -> BroadPhaseLayer;
-
-    fn as_raw(&self) -> *mut JPC_BroadPhaseLayerInterface {
-        jpc_bpli(self)
-    }
-}
-
-struct BroadPhaseLayerInterfaceBridge<T> {
-    _phantom: PhantomData<T>,
-}
-
-#[allow(non_snake_case)]
-impl<T: BroadPhaseLayerInterface> BroadPhaseLayerInterfaceBridge<T> {
-    unsafe extern "C" fn GetNumBroadPhaseLayers(this: *const c_void) -> c_uint {
-        let this = this.cast::<T>().as_ref().unwrap();
-
-        this.get_num_broad_phase_layers()
-    }
-
-    unsafe extern "C" fn GetBroadPhaseLayer(
-        this: *const c_void,
-        layer: JPC_ObjectLayer,
-    ) -> JPC_BroadPhaseLayer {
-        let this = this.cast::<T>().as_ref().unwrap();
-        let layer = ObjectLayer(layer);
-
-        this.get_broad_phase_layer(layer).raw()
-    }
-}
-
-fn jpc_bpli<T>(input: &T) -> *mut JPC_BroadPhaseLayerInterface
-where
-    T: BroadPhaseLayerInterface,
-{
-    type Bridge<T> = BroadPhaseLayerInterfaceBridge<T>;
-
-    let fns = JPC_BroadPhaseLayerInterfaceFns {
-        GetNumBroadPhaseLayers: Some(Bridge::<T>::GetNumBroadPhaseLayers as _),
-        GetBroadPhaseLayer: Some(Bridge::<T>::GetBroadPhaseLayer as _),
-    };
-
-    unsafe { JPC_BroadPhaseLayerInterface_new(ptr::from_ref(input).cast::<c_void>(), fns) }
-}
diff --git a/crates/jolt/src/physics_system.rs b/crates/jolt/src/physics_system.rs
new file mode 100644
index 0000000..fb265c2
--- /dev/null
+++ b/crates/jolt/src/physics_system.rs
@@ -0,0 +1,53 @@
+use jolt_sys::*;
+
+use crate::{BodyInterface, IntoBroadPhaseLayerInterface};
+
+pub struct PhysicsSystem(*mut JPC_PhysicsSystem);
+
+impl PhysicsSystem {
+    pub fn new() -> Self {
+        unsafe { Self(JPC_PhysicsSystem_new()) }
+    }
+
+    /// # Safety
+    /// no
+    pub unsafe fn init(
+        &self,
+        max_bodies: u32,
+        num_body_mutexes: u32,
+        max_body_pairs: u32,
+        max_contact_constraints: u32,
+        broad_phase_layer_interface: impl IntoBroadPhaseLayerInterface,
+        object_vs_broad_phase_layer_interface: *mut JPC_ObjectVsBroadPhaseLayerFilter,
+        object_layer_pair_filter: *mut JPC_ObjectLayerPairFilter,
+    ) {
+        unsafe {
+            JPC_PhysicsSystem_Init(
+                self.0,
+                max_bodies,
+                num_body_mutexes,
+                max_body_pairs,
+                max_contact_constraints,
+                broad_phase_layer_interface.as_raw(),
+                object_vs_broad_phase_layer_interface,
+                object_layer_pair_filter,
+            );
+        }
+    }
+
+    pub fn body_interface(&self) -> BodyInterface {
+        unsafe { BodyInterface::new(JPC_PhysicsSystem_GetBodyInterface(self.0)) }
+    }
+
+    pub fn as_raw(&self) -> *mut JPC_PhysicsSystem {
+        self.0
+    }
+}
+
+impl Drop for PhysicsSystem {
+    fn drop(&mut self) {
+        unsafe {
+            JPC_PhysicsSystem_delete(self.0);
+        }
+    }
+}