diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5470e0c..b53f761 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,8 @@ find_package(Qt6 REQUIRED COMPONENTS Gui Widgets)
 find_program(CARGO cargo REQUIRED)
 set(CARGO_TARGET_DIR "${CMAKE_SOURCE_DIR}/target" CACHE PATH "Path to the Cargo target directory")
 
+include(diplomat.cmake)
+
 qt_standard_project_setup()
 
 add_subdirectory(ui)
diff --git a/Cargo.lock b/Cargo.lock
index 6194248..1cd7292 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -180,7 +180,7 @@ checksum = "f9abbd1bc6865053c427f7198e6af43bfdedc55ab791faed4fbd361d789575ff"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -354,6 +354,38 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f27ae1dd37df86211c42e150270f82743308803d90a6f6e6651cd730d5e1732f"
 
+[[package]]
+name = "diplomat"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61a80510e6103d35c5cd031c0e3f21165b32742c301ee3dafdbb5904c6dca46a"
+dependencies = [
+ "diplomat_core",
+ "proc-macro2",
+ "quote",
+ "syn 3.0.9",
+]
+
+[[package]]
+name = "diplomat-runtime"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9d981121ba76150987fda68185b37853c0b928a55dfdc28897348cd068440be"
+
+[[package]]
+name = "diplomat_core"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa5c594efd1d097105255fc325c430a517c97b7b7c69f8727f653593e1ce726"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "serde",
+ "smallvec",
+ "strck",
+ "syn 3.0.9",
+]
+
 [[package]]
 name = "dispatch"
 version = "0.2.0"
@@ -442,7 +474,7 @@ checksum = "1a5c6c585bc94aaf2c7b51dd4c2ba22680844aba4c687be581871a6f518c5742"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -892,7 +924,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -1182,6 +1214,8 @@ version = "0.1.0"
 dependencies = [
  "approx",
  "bytemuck",
+ "diplomat",
+ "diplomat-runtime",
  "glam",
  "pollster",
  "rand",
@@ -1191,17 +1225,6 @@ dependencies = [
  "winit",
 ]
 
-[[package]]
-name = "photon-light-impl"
-version = "0.1.0"
-dependencies = [
- "glam",
- "photon-light",
- "pollster",
- "raw-window-handle",
- "wgpu",
-]
-
 [[package]]
 name = "pin-project"
 version = "1.1.10"
@@ -1219,7 +1242,7 @@ checksum = "6e918e4ff8c4549eb882f14b3a4bc8c8bc93de829416eacf579f1207a8fbf861"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -1530,7 +1553,7 @@ checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -1609,6 +1632,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "strck"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42316e70da376f3d113a68d138a60d8a9883c604fe97942721ec2068dab13a9f"
+dependencies = [
+ "unicode-ident",
+]
+
 [[package]]
 name = "strict-num"
 version = "0.1.1"
@@ -1626,6 +1658,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "3.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d78c8dee4c7bf0e14673097256fed6142ce9d3b85a408189d07482442145823b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.4.1"
@@ -1661,7 +1704,7 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -1672,7 +1715,7 @@ checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -1841,7 +1884,7 @@ dependencies = [
  "bumpalo",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
  "wasm-bindgen-shared",
 ]
 
@@ -2174,7 +2217,7 @@ checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -2185,7 +2228,7 @@ checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
 
 [[package]]
@@ -2517,5 +2560,5 @@ checksum = "2c7962b26b0a8685668b671ee4b54d007a67d4eaf05fda79ac0ecf41e32270f1"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.114",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 4fbd998..95fe38c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,11 @@
-[workspace]
-members = ["ui"]
-
 [package]
 name = "photon-light"
 version = "0.1.0"
 edition = "2024"
 
+[lib]
+crate-type = ["lib", "staticlib"]
+
 [profile.dev]
 panic = 'abort'
 
@@ -26,6 +26,8 @@ rand_distr = "0.5.1"
 rand_pcg = "0.9.0"
 wgpu = "27.0.1"
 winit = "0.30.12"
+diplomat = "0.17.0"
+diplomat-runtime = "0.16.1"
 
 [dev-dependencies]
 approx = "0.5.1"
diff --git a/diplomat.cmake b/diplomat.cmake
new file mode 100644
index 0000000..70a752f
--- /dev/null
+++ b/diplomat.cmake
@@ -0,0 +1,8 @@
+set(crates "${CMAKE_BINARY_DIR}/crates")
+set(diplomat "${crates}/bin/diplomat-tool")
+
+if(NOT IS_EXECUTABLE "${diplomat}")
+	message(CONFIGURE_LOG "Downloading Diplomat...")
+	file(MAKE_DIRECTORY "${crates}")
+	execute_process(COMMAND ${CARGO} install --root "${crates}" diplomat-tool@0.17.0)
+endif()
diff --git a/src/lib.rs b/src/lib.rs
index 99e79e9..942ae73 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,6 +4,7 @@ use std::{error::Error, f32::consts::PI};
 
 use glam::{Mat4, UVec2, Vec2, Vec3, vec3};
 use rand_distr::Distribution as _;
+use wgpu::rwh::{RawDisplayHandle, RawWindowHandle};
 
 use crate::{
 	camera::OrbitalCamera,
@@ -16,73 +17,103 @@ use crate::{
 	trace::{Hit, Lambertian, Reflector, Scene, Source, Sphere},
 };
 
+pub use crate::ffi::{RedrawArgs, SphericalPosition, UseNormal};
+
 mod camera;
+mod iter;
 mod ray;
 mod render;
 mod shape;
 mod trace;
 
-#[derive(Debug, Clone, Copy, PartialEq)]
-#[repr(C)]
-pub struct SphericalPosition {
-	pub yaw: f32,
-	pub pitch: f32,
-	pub distance: f32,
-}
+#[diplomat::bridge]
+mod ffi {
+	use std::{f32::consts::PI, num::NonZero, ptr::NonNull};
 
-#[derive(Debug, Clone, Copy)]
-#[repr(u8)]
-pub enum UseNormal {
-	Light,
-	Camera,
-}
+	use glam::uvec2;
+	use wgpu::rwh::{XcbDisplayHandle, XcbWindowHandle};
 
-#[derive(Debug, Clone, Copy)]
-#[repr(C)]
-pub struct RedrawArgs {
-	pub camera_position: SphericalPosition,
-	pub light_position: SphericalPosition,
-	pub light_radius: f32,
-	pub light_spread: f32,
-	pub accum_sigma: f32,
-	pub accum_scale: f32,
-	pub reflections: u8,
-	pub use_normal: UseNormal,
-	pub show_axes: bool,
-	pub show_shapes: bool,
-	pub show_hit_emission: bool,
-	pub show_miss_emission: bool,
-	pub show_direct_hit: bool,
-	pub show_indirect_hit: bool,
-	pub show_light: bool,
-}
+	#[derive(Debug, Clone, Copy, PartialEq)]
+	pub struct SphericalPosition {
+		pub yaw: f32,
+		pub pitch: f32,
+		pub distance: f32,
+	}
 
-impl Default for RedrawArgs {
-	fn default() -> Self {
-		Self {
-			camera_position: SphericalPosition {
-				yaw: PI / 4.,
-				pitch: 0.5f32.sqrt().atan(),
-				distance: 3.0,
-			},
-			light_position: SphericalPosition {
-				yaw: 0.0,
-				pitch: PI / 3.,
-				distance: 1.0,
-			},
-			light_radius: 0.125,
-			light_spread: 0.125,
-			accum_sigma: 0.025,
-			accum_scale: 0.01,
-			reflections: 2,
-			use_normal: UseNormal::Light,
-			show_axes: true,
-			show_shapes: true,
-			show_hit_emission: false,
-			show_miss_emission: false,
-			show_direct_hit: false,
-			show_indirect_hit: false,
-			show_light: true,
+	#[derive(Debug)]
+	pub enum UseNormal {
+		Light,
+		Camera,
+	}
+
+	#[derive(Debug, Clone, Copy)]
+	pub struct RedrawArgs {
+		pub camera_position: SphericalPosition,
+		pub light_position: SphericalPosition,
+		pub light_radius: f32,
+		pub light_spread: f32,
+		pub accum_sigma: f32,
+		pub accum_scale: f32,
+		pub reflections: u8,
+		pub use_normal: UseNormal,
+		pub show_axes: bool,
+		pub show_shapes: bool,
+		pub show_hit_emission: bool,
+		pub show_miss_emission: bool,
+		pub show_direct_hit: bool,
+		pub show_indirect_hit: bool,
+		pub show_light: bool,
+	}
+
+	impl Default for RedrawArgs {
+		fn default() -> Self {
+			Self {
+				camera_position: SphericalPosition {
+					yaw: PI / 4.,
+					pitch: 0.5f32.sqrt().atan(),
+					distance: 3.0,
+				},
+				light_position: SphericalPosition {
+					yaw: 0.0,
+					pitch: PI / 3.,
+					distance: 1.0,
+				},
+				light_radius: 0.125,
+				light_spread: 0.125,
+				accum_sigma: 0.025,
+				accum_scale: 0.01,
+				reflections: 2,
+				use_normal: UseNormal::Light,
+				show_axes: true,
+				show_shapes: true,
+				show_hit_emission: false,
+				show_miss_emission: false,
+				show_direct_hit: false,
+				show_indirect_hit: false,
+				show_light: true,
+			}
+		}
+	}
+
+	#[diplomat::opaque_mut]
+	pub struct Core(crate::Core);
+
+	impl Core {
+		pub fn from_xcb(connection: usize, window: u32, width: u32, height: u32) -> Box<Core> {
+			let display =
+				XcbDisplayHandle::new(Some(NonNull::new(connection as *mut _).unwrap()), 0);
+			let window = XcbWindowHandle::new(NonZero::new(window).unwrap());
+			let gpu = unsafe { crate::Gpu::new_raw(display, window) };
+			let size = uvec2(width, height);
+			Box::new(Self(crate::Core::new(gpu, size)))
+		}
+
+		pub fn configure(&mut self, width: u32, height: u32) {
+			self.0.configure(uvec2(width, height));
+		}
+
+		pub fn redraw(&mut self, args: &RedrawArgs) {
+			self.0.redraw(args);
 		}
 	}
 }
@@ -93,6 +124,23 @@ pub struct Gpu {
 	surface: wgpu::Surface<'static>,
 }
 
+impl Gpu {
+	unsafe fn new_raw(
+		display: impl Into<RawDisplayHandle>,
+		window: impl Into<RawWindowHandle>,
+	) -> Self {
+		let target = wgpu::SurfaceTargetUnsafe::RawHandle {
+			raw_display_handle: display.into(),
+			raw_window_handle: window.into(),
+		};
+		let gpu = pollster::block_on(init_gpu_inner(|instance| unsafe {
+			instance.create_surface_unsafe(target)
+		}))
+		.unwrap();
+		gpu
+	}
+}
+
 pub struct Core {
 	device: wgpu::Device,
 	queue: wgpu::Queue,
diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
index 191380f..abc617e 100644
--- a/ui/CMakeLists.txt
+++ b/ui/CMakeLists.txt
@@ -1,7 +1,6 @@
 include(impl.cmake)
 
 qt_add_executable(photon-light
-	src/api.cxx
 	src/main.cxx
 	src/main_window.cxx
 	src/main_window.ui
diff --git a/ui/Cargo.toml b/ui/Cargo.toml
deleted file mode 100644
index e12ba36..0000000
--- a/ui/Cargo.toml
+++ /dev/null
@@ -1,15 +0,0 @@
-[package]
-name = "photon-light-impl"
-version = "0.1.0"
-edition = "2024"
-
-[lib]
-crate-type = ["staticlib"]
-
-[dependencies]
-photon-light = {path = "../"}
-
-glam = { version = "0.30" }
-pollster = "0.4.0"
-raw-window-handle = "0.6.2"
-wgpu = "27.0.1"
diff --git a/ui/impl.cmake b/ui/impl.cmake
index de4d266..636739e 100644
--- a/ui/impl.cmake
+++ b/ui/impl.cmake
@@ -1,19 +1,25 @@
 # build the Rust side as a static library
-set(impl_basename "${CARGO_TARGET_DIR}/release/libphoton_light_impl")
+set(impl_basename "${CARGO_TARGET_DIR}/release/libphoton_light")
 
 set(cargo_cmake_args)
+set(diplomat_cmake_args)
 
 if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.27")
 	list(APPEND cargo_cmake_args DEPENDS_EXPLICIT_ONLY)
+	list(APPEND diplomat_cmake_args DEPENDS_EXPLICIT_ONLY)
 endif()
 
 if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.28")
 	list(APPEND cargo_cmake_args JOB_SERVER_AWARE TRUE)
 endif()
 
+if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.31")
+	list(APPEND diplomat_cmake_args CODEGEN)
+endif()
+
 add_custom_command(
 	OUTPUT "${impl_basename}.a"
-	COMMAND env "CARGO_TARGET_DIR=${CARGO_TARGET_DIR}" ${CARGO} build --release --package photon-light-impl
+	COMMAND env "CARGO_TARGET_DIR=${CARGO_TARGET_DIR}" ${CARGO} build --release --package photon-light
 	WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 	DEPFILE "${impl_basename}.d"
 	USES_TERMINAL
@@ -31,3 +37,22 @@ add_library(photon_light_impl STATIC IMPORTED)
 set_target_properties(photon_light_impl PROPERTIES
 	IMPORTED_LOCATION "${impl_basename}.a"
 )
+
+# generate the bindings
+set(bindings_dir "${CMAKE_CURRENT_BINARY_DIR}/include")
+file(MAKE_DIRECTORY "${bindings_dir}")
+set(bindings
+	"${bindings_dir}/Core.hpp"
+)
+
+add_custom_command(
+	OUTPUT ${bindings}
+	COMMAND ${diplomat} cpp "${bindings_dir}"
+	MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/src/lib.rs"
+	WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+	VERBATIM
+	${diplomat_cmake_args}
+)
+
+target_sources(photon_light_impl INTERFACE ${bindings})
+target_include_directories(photon_light_impl INTERFACE "${bindings_dir}")
diff --git a/ui/src/api.cxx b/ui/src/api.cxx
deleted file mode 100644
index aaa2b64..0000000
--- a/ui/src/api.cxx
+++ /dev/null
@@ -1,57 +0,0 @@
-#include "api.hxx"
-
-#include <stdexcept>
-#include <utility>
-
-namespace ffi {
-extern "C" Core* rt4_viewport_create(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height);
-extern "C" void rt4_viewport_destroy(Core* viewport);
-extern "C" void rt4_viewport_configure(Core* viewport, std::uint32_t width, std::uint32_t height);
-extern "C" void rt4_viewport_redraw(Core* viewport, const RedrawArgs* args);
-} // namespace ffi
-
-BoxCore::BoxCore(BoxCore&& b)
-	: ptr(std::exchange(b.ptr, {})) {
-}
-
-BoxCore::~BoxCore() {
-	reset();
-}
-
-BoxCore& BoxCore::operator=(BoxCore&& b) {
-	if (&b == this)
-		return *this;
-	std::swap(ptr, b.ptr);
-	b.reset();
-	return *this;
-}
-
-BoxCore BoxCore::from_xcb(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height) {
-	if (!connection)
-		throw std::logic_error("attempt to use a null connection");
-	if (!window)
-		throw std::logic_error("attempt to use a null window");
-	BoxCore out;
-	out.ptr.ptr = ffi::rt4_viewport_create(connection, window, width, height);
-	return out;
-}
-
-void BoxCore::reset() {
-	auto viewport = std::exchange(ptr, {});
-	if (viewport)
-		ffi::rt4_viewport_destroy(viewport.use());
-}
-
-ffi::Core* MutCore::use() const {
-	if (!ptr)
-		throw std::logic_error("attempt to use a null Core");
-	return ptr;
-}
-
-void MutCore::configure(std::uint32_t width, std::uint32_t height) const {
-	rt4_viewport_configure(use(), width, height);
-}
-
-void MutCore::redraw(const RedrawArgs& args) const {
-	rt4_viewport_redraw(use(), &args);
-}
diff --git a/ui/src/api.hxx b/ui/src/api.hxx
deleted file mode 100644
index d46272e..0000000
--- a/ui/src/api.hxx
+++ /dev/null
@@ -1,76 +0,0 @@
-#pragma once
-
-#include <cstdint>
-
-struct xcb_connection_t;
-
-namespace ffi {
-struct Core;
-
-struct SphericalPosition {
-	float yaw = 0.;
-	float pitch = 0.;
-	float distance = 1.;
-};
-
-enum class UseNormal: std::uint8_t {
-	Light,
-	Camera,
-};
-
-struct RedrawArgs {
-	SphericalPosition camera_position;
-	SphericalPosition light_position;
-	float light_radius = 1.;
-	float light_spread = 0.;
-	float accum_sigma = 1.;
-	float accum_scale = 1.;
-	std::uint8_t reflections = 0;
-	UseNormal use_normal = UseNormal::Light;
-	bool show_axes = true;
-	bool show_shapes = true;
-	bool show_hit_emission = true;
-	bool show_miss_emission = true;
-	bool show_direct_hit = true;
-	bool show_indirect_hit = true;
-	bool show_light = true;
-};
-} // namespace ffi
-
-using ffi::UseNormal;
-using ffi::RedrawArgs;
-using ffi::SphericalPosition;
-
-class MutCore {
-	friend class BoxCore;
-
-public:
-	explicit operator bool() const { return ptr; }
-
-	void configure(std::uint32_t width, std::uint32_t height) const;
-	void redraw(const RedrawArgs& args) const;
-
-private:
-	ffi::Core* ptr = nullptr;
-	ffi::Core* use() const;
-};
-
-class BoxCore {
-public:
-	BoxCore() = default;
-	BoxCore(const BoxCore&) = delete;
-	BoxCore(BoxCore&&);
-	BoxCore& operator=(const BoxCore&) = delete;
-	BoxCore& operator=(BoxCore&&);
-	~BoxCore();
-
-	explicit operator bool() const { return !!ptr; }
-	const MutCore* operator->() const { return &ptr; }
-
-	void reset();
-
-	static BoxCore from_xcb(xcb_connection_t* connection, std::uint32_t window, std::uint32_t width, std::uint32_t height);
-
-private:
-	MutCore ptr;
-};
diff --git a/ui/src/lib.rs b/ui/src/lib.rs
deleted file mode 100644
index ed5dce1..0000000
--- a/ui/src/lib.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-use std::{ffi::c_void, num::NonZero, ptr::NonNull};
-
-use glam::{UVec2, uvec2};
-use raw_window_handle::{RawDisplayHandle, RawWindowHandle, XcbDisplayHandle, XcbWindowHandle};
-
-use photon_light::{Core, RedrawArgs, init_gpu_inner};
-
-unsafe fn create_viewport(
-	display: impl Into<RawDisplayHandle>,
-	window: impl Into<RawWindowHandle>,
-	size: UVec2,
-) -> Box<Core> {
-	let target = wgpu::SurfaceTargetUnsafe::RawHandle {
-		raw_display_handle: display.into(),
-		raw_window_handle: window.into(),
-	};
-	let gpu = pollster::block_on(init_gpu_inner(|instance| unsafe {
-		instance.create_surface_unsafe(target)
-	}))
-	.unwrap();
-	Box::new(Core::new(gpu, size))
-}
-
-#[unsafe(no_mangle)]
-unsafe extern "C" fn rt4_viewport_create(
-	connection: NonNull<c_void>,
-	window: NonZero<u32>,
-	width: u32,
-	height: u32,
-) -> Box<Core> {
-	let display = XcbDisplayHandle::new(Some(connection), 0);
-	let window = XcbWindowHandle::new(window);
-	unsafe { create_viewport(display, window, uvec2(width, height)) }
-}
-
-#[unsafe(no_mangle)]
-unsafe extern "C" fn rt4_viewport_destroy(viewport: Box<Core>) {
-	drop(viewport);
-}
-
-#[unsafe(no_mangle)]
-unsafe extern "C" fn rt4_viewport_configure(viewport: &mut Core, width: u32, height: u32) {
-	viewport.configure(uvec2(width, height));
-}
-
-#[unsafe(no_mangle)]
-unsafe extern "C" fn rt4_viewport_redraw(viewport: &mut Core, args: &RedrawArgs) {
-	viewport.redraw(args);
-}
diff --git a/ui/src/viewport.cxx b/ui/src/viewport.cxx
index e681bd9..60d638c 100644
--- a/ui/src/viewport.cxx
+++ b/ui/src/viewport.cxx
@@ -63,7 +63,7 @@ void Viewport::recreate() try {
 
 	const QSize device_size = size() * devicePixelRatio();
 	core.reset();
-	core = BoxCore::from_xcb(xcb_connection, x11_window, device_size.width(), device_size.height());
+	core = Core::from_xcb((std::uintptr_t)xcb_connection, x11_window, device_size.width(), device_size.height());
 } catch (const std::exception& e) {
 	fprintf(stderr, "failed to recreate the viewport: %s", e.what());
 }
diff --git a/ui/src/viewport.hxx b/ui/src/viewport.hxx
index 95839b9..5d1d738 100644
--- a/ui/src/viewport.hxx
+++ b/ui/src/viewport.hxx
@@ -2,7 +2,7 @@
 
 #include <QWidget>
 
-#include "api.hxx"
+#include "Core.hpp"
 
 class Viewport : public QWidget {
 	Q_OBJECT
@@ -20,7 +20,7 @@ protected:
 	void resizeEvent(QResizeEvent* event) override;
 
 private:
-	BoxCore core;
+	std::unique_ptr<Core> core;
 	RedrawArgs args = {};
 
 	void recreate();