diff --git a/.gitea/workflows/Build.yml b/.gitea/workflows/Build.yml
index 221fb9e..0a527a9 100644
--- a/.gitea/workflows/Build.yml
+++ b/.gitea/workflows/Build.yml
@@ -27,6 +27,9 @@ jobs:
       - name: Building Flint
         run: zig build flint
 
+      - name: Building Phi
+        run: zig build phi
+
       - name: Generating docs
         run: zig build docs
 
diff --git a/.gitea/workflows/Test.yml b/.gitea/workflows/Test.yml
index 9fafbee..1475fe1 100644
--- a/.gitea/workflows/Test.yml
+++ b/.gitea/workflows/Test.yml
@@ -23,3 +23,6 @@ jobs:
 
     - name: Flint Tests
       run: zig build test-flint
+
+    - name: Phi Tests
+      run: zig build test-phi
diff --git a/build.zig b/build.zig
index 95623fe..69a8968 100644
--- a/build.zig
+++ b/build.zig
@@ -45,6 +45,13 @@ const implementations = [_]ImplementationDesc{
         .custom = customFlint,
         .options = optionsFlint,
     },
+    .{
+        .name = "phi",
+        .root_source_file = "src/phi/lib.zig",
+        .vulkan_version = .{ .major = 1, .minor = 0, .patch = 0 },
+        .custom = customPhi,
+        .options = optionsPhi,
+    },
 };
 
 const RunningMode = enum {
@@ -291,8 +298,6 @@ fn customFlint(
     _: bool,
 ) !void {
     lib_mod.addImport("intel_c", base_c_mod);
-
-    lib_mod.addImport("soft_c", base_c_mod);
 }
 
 fn optionsFlint(b: *std.Build, options: *Step.Options) !void {
@@ -300,6 +305,25 @@ fn optionsFlint(b: *std.Build, options: *Step.Options) !void {
     _ = options;
 }
 
+fn customPhi(
+    _: *std.Build,
+    _: *Step.Compile,
+    lib_mod: *std.Build.Module,
+    _: *std.Build.Module,
+    _: *std.Build.Module,
+    base_c_mod: *std.Build.Module,
+    _: std.Build.ResolvedTarget,
+    _: std.builtin.OptimizeMode,
+    _: bool,
+) !void {
+    lib_mod.addImport("phi_c", base_c_mod);
+}
+
+fn optionsPhi(b: *std.Build, options: *Step.Options) !void {
+    _ = b;
+    _ = options;
+}
+
 fn addCTS(b: *std.Build, target: std.Build.ResolvedTarget, impl: *const ImplementationDesc, impl_lib: *Step.Compile, comptime mode: RunningMode) !*Step {
     const cts = b.dependency("cts_bin", .{});
 
diff --git a/src/phi/PhiBinarySemaphore.zig b/src/phi/PhiBinarySemaphore.zig
new file mode 100644
index 0000000..421d048
--- /dev/null
+++ b/src/phi/PhiBinarySemaphore.zig
@@ -0,0 +1,44 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.BinarySemaphore;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.SemaphoreCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .signal = signal,
+        .wait = wait,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn signal(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn wait(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
diff --git a/src/phi/PhiBuffer.zig b/src/phi/PhiBuffer.zig
new file mode 100644
index 0000000..07e1df8
--- /dev/null
+++ b/src/phi/PhiBuffer.zig
@@ -0,0 +1,40 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const lib = @import("lib.zig");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.Buffer;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.BufferCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .getMemoryRequirements = getMemoryRequirements,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn getMemoryRequirements(interface: *Interface, requirements: *vk.MemoryRequirements) void {
+    _ = interface;
+    _ = requirements;
+}
diff --git a/src/phi/PhiBufferView.zig b/src/phi/PhiBufferView.zig
new file mode 100644
index 0000000..046a07a
--- /dev/null
+++ b/src/phi/PhiBufferView.zig
@@ -0,0 +1,32 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.BufferView;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.BufferViewCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiCommandBuffer.zig b/src/phi/PhiCommandBuffer.zig
new file mode 100644
index 0000000..91c5b4f
--- /dev/null
+++ b/src/phi/PhiCommandBuffer.zig
@@ -0,0 +1,420 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.CommandBuffer;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.CommandBufferAllocateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{ .destroy = destroy };
+    interface.dispatch_table = &.{
+        .begin = begin,
+        .beginQuery = beginQuery,
+        .beginRenderPass = beginRenderPass,
+        .bindDescriptorSets = bindDescriptorSets,
+        .bindPipeline = bindPipeline,
+        .bindIndexBuffer = bindIndexBuffer,
+        .bindVertexBuffer = bindVertexBuffer,
+        .blitImage = blitImage,
+        .clearAttachment = clearAttachment,
+        .clearColorImage = clearColorImage,
+        .clearDepthStencilImage = clearDepthStencilImage,
+        .copyBuffer = copyBuffer,
+        .copyBufferToImage = copyBufferToImage,
+        .copyImage = copyImage,
+        .copyImageToBuffer = copyImageToBuffer,
+        .copyQueryPoolResults = copyQueryPoolResults,
+        .dispatch = dispatch,
+        .dispatchBase = dispatchBase,
+        .dispatchIndirect = dispatchIndirect,
+        .draw = draw,
+        .drawIndexed = drawIndexed,
+        .drawIndexedIndirect = drawIndexedIndirect,
+        .drawIndirect = drawIndirect,
+        .end = end,
+        .endQuery = endQuery,
+        .endRenderPass = endRenderPass,
+        .executeCommands = executeCommands,
+        .fillBuffer = fillBuffer,
+        .nextSubpass = nextSubpass,
+        .pipelineBarrier = pipelineBarrier,
+        .pushConstants = pushConstants,
+        .reset = reset,
+        .resetQueryPool = resetQueryPool,
+        .resetEvent = resetEvent,
+        .resolveImage = resolveImage,
+        .setEvent = setEvent,
+        .setBlendConstants = setBlendConstants,
+        .setDepthBias = setDepthBias,
+        .setDepthBounds = setDepthBounds,
+        .setDeviceMask = setDeviceMask,
+        .setLineWidth = setLineWidth,
+        .setScissor = setScissor,
+        .setStencilCompareMask = setStencilCompareMask,
+        .setStencilReference = setStencilReference,
+        .setStencilWriteMask = setStencilWriteMask,
+        .setViewport = setViewport,
+        .updateBuffer = updateBuffer,
+        .waitEvent = waitEvent,
+        .writeTimestamp = writeTimestamp,
+    };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn execute(self: *Self) VkError!void {
+    try self.interface.submit();
+    self.interface.finish() catch {};
+}
+
+pub fn begin(interface: *Interface, info: *const vk.CommandBufferBeginInfo) VkError!void {
+    _ = interface;
+    _ = info;
+}
+
+pub fn end(interface: *Interface) VkError!void {
+    _ = interface;
+}
+
+pub fn reset(interface: *Interface, flags: vk.CommandBufferResetFlags) VkError!void {
+    _ = interface;
+    _ = flags;
+}
+
+pub fn beginQuery(interface: *Interface, pool: *base.QueryPool, query: u32, flags: vk.QueryControlFlags) VkError!void {
+    _ = interface;
+    _ = flags;
+    try pool.begin(query);
+}
+
+pub fn endQuery(interface: *Interface, pool: *base.QueryPool, query: u32) VkError!void {
+    _ = interface;
+    try pool.end(query);
+}
+
+pub fn resetQueryPool(interface: *Interface, pool: *base.QueryPool, first: u32, count: u32) VkError!void {
+    _ = interface;
+    try pool.reset(first, count);
+}
+
+pub fn beginRenderPass(interface: *Interface, render_pass: *base.RenderPass, framebuffer: *base.Framebuffer, render_area: vk.Rect2D, clear_values: ?[]const vk.ClearValue) VkError!void {
+    _ = interface;
+    _ = render_pass;
+    _ = framebuffer;
+    _ = render_area;
+    _ = clear_values;
+}
+
+pub fn bindDescriptorSets(interface: *Interface, bind_point: vk.PipelineBindPoint, first_set: u32, sets: [base.VULKAN_MAX_DESCRIPTOR_SETS]?*base.DescriptorSet, dynamic_offsets: []const u32) VkError!void {
+    _ = interface;
+    _ = bind_point;
+    _ = first_set;
+    _ = sets;
+    _ = dynamic_offsets;
+}
+
+pub fn bindPipeline(interface: *Interface, bind_point: vk.PipelineBindPoint, pipeline: *base.Pipeline) VkError!void {
+    _ = interface;
+    _ = bind_point;
+    _ = pipeline;
+}
+
+pub fn bindIndexBuffer(interface: *Interface, buffer: *base.Buffer, offset: usize, index_type: vk.IndexType) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+    _ = index_type;
+}
+
+pub fn bindVertexBuffer(interface: *Interface, index: usize, buffer: *base.Buffer, offset: usize) VkError!void {
+    _ = interface;
+    _ = index;
+    _ = buffer;
+    _ = offset;
+}
+
+pub fn blitImage(interface: *Interface, src: *base.Image, src_layout: vk.ImageLayout, dst: *base.Image, dst_layout: vk.ImageLayout, regions: []const vk.ImageBlit, filter: vk.Filter) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = src_layout;
+    _ = dst;
+    _ = dst_layout;
+    _ = regions;
+    _ = filter;
+}
+
+pub fn clearAttachment(interface: *Interface, attachment: vk.ClearAttachment, rect: vk.ClearRect) VkError!void {
+    _ = interface;
+    _ = attachment;
+    _ = rect;
+}
+
+pub fn clearColorImage(interface: *Interface, image: *base.Image, layout: vk.ImageLayout, color: *const vk.ClearColorValue, range: vk.ImageSubresourceRange) VkError!void {
+    _ = interface;
+    _ = image;
+    _ = layout;
+    _ = color;
+    _ = range;
+}
+
+pub fn clearDepthStencilImage(interface: *Interface, image: *base.Image, layout: vk.ImageLayout, value: *const vk.ClearDepthStencilValue, range: vk.ImageSubresourceRange) VkError!void {
+    _ = interface;
+    _ = image;
+    _ = layout;
+    _ = value;
+    _ = range;
+}
+
+pub fn copyBuffer(interface: *Interface, src: *base.Buffer, dst: *base.Buffer, regions: []const vk.BufferCopy) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = dst;
+    _ = regions;
+}
+
+pub fn copyBufferToImage(interface: *Interface, src: *base.Buffer, dst: *base.Image, dst_layout: vk.ImageLayout, regions: []const vk.BufferImageCopy) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = dst;
+    _ = dst_layout;
+    _ = regions;
+}
+
+pub fn copyImage(interface: *Interface, src: *base.Image, src_layout: vk.ImageLayout, dst: *base.Image, dst_layout: vk.ImageLayout, regions: []const vk.ImageCopy) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = src_layout;
+    _ = dst;
+    _ = dst_layout;
+    _ = regions;
+}
+
+pub fn copyImageToBuffer(interface: *Interface, src: *base.Image, src_layout: vk.ImageLayout, dst: *base.Buffer, regions: []const vk.BufferImageCopy) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = src_layout;
+    _ = dst;
+    _ = regions;
+}
+
+pub fn copyQueryPoolResults(interface: *Interface, pool: *base.QueryPool, first: u32, count: u32, dst: *base.Buffer, offset: vk.DeviceSize, stride: vk.DeviceSize, flags: vk.QueryResultFlags) VkError!void {
+    _ = interface;
+    _ = pool;
+    _ = first;
+    _ = count;
+    _ = dst;
+    _ = offset;
+    _ = stride;
+    _ = flags;
+}
+
+pub fn dispatch(interface: *Interface, group_count_x: u32, group_count_y: u32, group_count_z: u32) VkError!void {
+    _ = interface;
+    _ = group_count_x;
+    _ = group_count_y;
+    _ = group_count_z;
+}
+
+pub fn dispatchBase(interface: *Interface, base_group_x: u32, base_group_y: u32, base_group_z: u32, group_count_x: u32, group_count_y: u32, group_count_z: u32) VkError!void {
+    _ = interface;
+    _ = base_group_x;
+    _ = base_group_y;
+    _ = base_group_z;
+    _ = group_count_x;
+    _ = group_count_y;
+    _ = group_count_z;
+}
+
+pub fn setDeviceMask(interface: *Interface, device_mask: u32) VkError!void {
+    _ = interface;
+    _ = device_mask;
+}
+
+pub fn dispatchIndirect(interface: *Interface, buffer: *base.Buffer, offset: vk.DeviceSize) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+}
+
+pub fn draw(interface: *Interface, vertex_count: usize, instance_count: usize, first_vertex: usize, first_instance: usize) VkError!void {
+    _ = interface;
+    _ = vertex_count;
+    _ = instance_count;
+    _ = first_vertex;
+    _ = first_instance;
+}
+
+pub fn drawIndexed(interface: *Interface, index_count: usize, instance_count: usize, first_index: usize, vertex_offset: i32, first_instance: usize) VkError!void {
+    _ = interface;
+    _ = index_count;
+    _ = instance_count;
+    _ = first_index;
+    _ = vertex_offset;
+    _ = first_instance;
+}
+
+pub fn drawIndexedIndirect(interface: *Interface, buffer: *base.Buffer, offset: usize, count: usize, stride: usize) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+    _ = count;
+    _ = stride;
+}
+
+pub fn drawIndirect(interface: *Interface, buffer: *base.Buffer, offset: usize, count: usize, stride: usize) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+    _ = count;
+    _ = stride;
+}
+
+pub fn endRenderPass(interface: *Interface) VkError!void {
+    _ = interface;
+}
+
+pub fn executeCommands(interface: *Interface, commands: *Interface) VkError!void {
+    _ = interface;
+    _ = commands;
+}
+
+pub fn fillBuffer(interface: *Interface, buffer: *base.Buffer, offset: vk.DeviceSize, size: vk.DeviceSize, data: u32) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+    _ = size;
+    _ = data;
+}
+
+pub fn updateBuffer(interface: *Interface, buffer: *base.Buffer, offset: vk.DeviceSize, data: []const u8) VkError!void {
+    _ = interface;
+    _ = buffer;
+    _ = offset;
+    _ = data;
+}
+
+pub fn nextSubpass(interface: *Interface, contents: vk.SubpassContents) VkError!void {
+    _ = interface;
+    _ = contents;
+}
+
+pub fn pipelineBarrier(interface: *Interface, src_stage: vk.PipelineStageFlags, dst_stage: vk.PipelineStageFlags, dependency: vk.DependencyFlags, memory: []const vk.MemoryBarrier, buffers: []const vk.BufferMemoryBarrier, images: []const vk.ImageMemoryBarrier) VkError!void {
+    _ = interface;
+    _ = src_stage;
+    _ = dst_stage;
+    _ = dependency;
+    _ = memory;
+    _ = buffers;
+    _ = images;
+}
+
+pub fn pushConstants(interface: *Interface, stages: vk.ShaderStageFlags, offset: u32, blob: []const u8) VkError!void {
+    _ = interface;
+    _ = stages;
+    _ = offset;
+    _ = blob;
+}
+
+pub fn resetEvent(interface: *Interface, event: *base.Event, stage: vk.PipelineStageFlags) VkError!void {
+    _ = interface;
+    _ = stage;
+    try event.reset();
+}
+
+pub fn resolveImage(interface: *Interface, src: *base.Image, src_layout: vk.ImageLayout, dst: *base.Image, dst_layout: vk.ImageLayout, region: vk.ImageResolve) VkError!void {
+    _ = interface;
+    _ = src;
+    _ = src_layout;
+    _ = dst;
+    _ = dst_layout;
+    _ = region;
+}
+
+pub fn setEvent(interface: *Interface, event: *base.Event, stage: vk.PipelineStageFlags) VkError!void {
+    _ = interface;
+    _ = stage;
+    try event.signal();
+}
+
+pub fn setScissor(interface: *Interface, first: u32, scissor: []const vk.Rect2D) VkError!void {
+    _ = interface;
+    _ = first;
+    _ = scissor;
+}
+
+pub fn setViewport(interface: *Interface, first: u32, viewports: []const vk.Viewport) VkError!void {
+    _ = interface;
+    _ = first;
+    _ = viewports;
+}
+
+pub fn setBlendConstants(interface: *Interface, constants: [4]f32) VkError!void {
+    _ = interface;
+    _ = constants;
+}
+
+pub fn setDepthBias(interface: *Interface, constant_factor: f32, clamp: f32, slope_factor: f32) VkError!void {
+    _ = interface;
+    _ = constant_factor;
+    _ = clamp;
+    _ = slope_factor;
+}
+
+pub fn setDepthBounds(interface: *Interface, min: f32, max: f32) VkError!void {
+    _ = interface;
+    _ = min;
+    _ = max;
+}
+
+pub fn setLineWidth(interface: *Interface, width: f32) VkError!void {
+    _ = interface;
+    _ = width;
+}
+
+pub fn setStencilCompareMask(interface: *Interface, face_mask: vk.StencilFaceFlags, compare_mask: u32) VkError!void {
+    _ = interface;
+    _ = face_mask;
+    _ = compare_mask;
+}
+
+pub fn setStencilReference(interface: *Interface, face_mask: vk.StencilFaceFlags, reference: u32) VkError!void {
+    _ = interface;
+    _ = face_mask;
+    _ = reference;
+}
+
+pub fn setStencilWriteMask(interface: *Interface, face_mask: vk.StencilFaceFlags, write_mask: u32) VkError!void {
+    _ = interface;
+    _ = face_mask;
+    _ = write_mask;
+}
+
+pub fn waitEvent(interface: *Interface, event: *base.Event, src_stage: vk.PipelineStageFlags, dst_stage: vk.PipelineStageFlags, memory_barriers: []const vk.MemoryBarrier, buffer_barriers: []const vk.BufferMemoryBarrier, image_barriers: []const vk.ImageMemoryBarrier) VkError!void {
+    _ = interface;
+    _ = event;
+    _ = src_stage;
+    _ = dst_stage;
+    _ = memory_barriers;
+    _ = buffer_barriers;
+    _ = image_barriers;
+}
+
+pub fn writeTimestamp(interface: *Interface, stage: vk.PipelineStageFlags, pool: *base.QueryPool, query: u32) VkError!void {
+    _ = interface;
+    _ = stage;
+    try pool.writeTimestamp(query, 0);
+}
diff --git a/src/phi/PhiCommandPool.zig b/src/phi/PhiCommandPool.zig
new file mode 100644
index 0000000..b70e6e3
--- /dev/null
+++ b/src/phi/PhiCommandPool.zig
@@ -0,0 +1,48 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const NonDispatchable = base.NonDispatchable;
+const VkError = base.VkError;
+const Device = base.Device;
+
+const PhiCommandBuffer = @import("PhiCommandBuffer.zig");
+
+const Self = @This();
+pub const Interface = base.CommandPool;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.CommandPoolCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .createCommandBuffer = createCommandBuffer,
+        .destroy = destroy,
+        .reset = reset,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn createCommandBuffer(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.CommandBufferAllocateInfo) VkError!*base.CommandBuffer {
+    const cmd = try PhiCommandBuffer.create(interface.owner, allocator, info);
+    return &cmd.interface;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn reset(interface: *Interface, flags: vk.CommandPoolResetFlags) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = flags;
+}
diff --git a/src/phi/PhiDescriptorPool.zig b/src/phi/PhiDescriptorPool.zig
new file mode 100644
index 0000000..c390577
--- /dev/null
+++ b/src/phi/PhiDescriptorPool.zig
@@ -0,0 +1,55 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const VulkanAllocator = base.VulkanAllocator;
+
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.DescriptorPool;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.DescriptorPoolCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .allocateDescriptorSet = allocateDescriptorSet,
+        .destroy = destroy,
+        .freeDescriptorSet = freeDescriptorSet,
+        .reset = reset,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn allocateDescriptorSet(interface: *Interface, layout: *base.DescriptorSetLayout) VkError!*base.DescriptorSet {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = layout;
+    return VkError.Unknown;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn freeDescriptorSet(interface: *Interface, set: *base.DescriptorSet) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = set;
+}
+
+pub fn reset(interface: *Interface, _: vk.DescriptorPoolResetFlags) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
diff --git a/src/phi/PhiDescriptorSet.zig b/src/phi/PhiDescriptorSet.zig
new file mode 100644
index 0000000..7472fb9
--- /dev/null
+++ b/src/phi/PhiDescriptorSet.zig
@@ -0,0 +1,46 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.DescriptorSet;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, layout: *base.DescriptorSetLayout) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, layout);
+
+    interface.vtable = &.{
+        .copy = copy,
+        .destroy = destroy,
+        .write = write,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn copy(interface: *Interface, src_interface: *const Interface, data: vk.CopyDescriptorSet) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = src_interface;
+    _ = data;
+}
+
+pub fn write(interface: *Interface, write_data: vk.WriteDescriptorSet) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = write_data;
+}
diff --git a/src/phi/PhiDescriptorSetLayout.zig b/src/phi/PhiDescriptorSetLayout.zig
new file mode 100644
index 0000000..b2d706e
--- /dev/null
+++ b/src/phi/PhiDescriptorSetLayout.zig
@@ -0,0 +1,32 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.DescriptorSetLayout;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.DescriptorSetLayoutCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiDevice.zig b/src/phi/PhiDevice.zig
new file mode 100644
index 0000000..2221286
--- /dev/null
+++ b/src/phi/PhiDevice.zig
@@ -0,0 +1,208 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const PhiQueue = @import("PhiQueue.zig");
+
+pub const PhiBinarySemaphore = @import("PhiBinarySemaphore.zig");
+pub const PhiBuffer = @import("PhiBuffer.zig");
+pub const PhiBufferView = @import("PhiBufferView.zig");
+pub const PhiCommandBuffer = @import("PhiCommandBuffer.zig");
+pub const PhiCommandPool = @import("PhiCommandPool.zig");
+pub const PhiDescriptorPool = @import("PhiDescriptorPool.zig");
+pub const PhiDescriptorSetLayout = @import("PhiDescriptorSetLayout.zig");
+pub const PhiDeviceMemory = @import("PhiDeviceMemory.zig");
+pub const PhiEvent = @import("PhiEvent.zig");
+pub const PhiFence = @import("PhiFence.zig");
+pub const PhiFramebuffer = @import("PhiFramebuffer.zig");
+pub const PhiImage = @import("PhiImage.zig");
+pub const PhiInstance = @import("PhiInstance.zig");
+pub const PhiImageView = @import("PhiImageView.zig");
+pub const PhiPipeline = @import("PhiPipeline.zig");
+pub const PhiPipelineCache = @import("PhiPipelineCache.zig");
+pub const PhiPipelineLayout = @import("PhiPipelineLayout.zig");
+pub const PhiQueryPool = @import("PhiQueryPool.zig");
+pub const PhiRenderPass = @import("PhiRenderPass.zig");
+pub const PhiSampler = @import("PhiSampler.zig");
+pub const PhiShaderModule = @import("PhiShaderModule.zig");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Device;
+
+interface: Interface,
+
+pub fn create(instance: *base.Instance, physical_device: *base.PhysicalDevice, allocator: std.mem.Allocator, info: *const vk.DeviceCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(allocator, instance, physical_device, info);
+
+    interface.vtable = &.{
+        .createQueue = PhiQueue.create,
+        .destroyQueue = PhiQueue.destroy,
+    };
+
+    interface.dispatch_table = &.{
+        .allocateMemory = allocateMemory,
+        .createBuffer = createBuffer,
+        .createBufferView = createBufferView,
+        .createCommandPool = createCommandPool,
+        .createComputePipeline = createComputePipeline,
+        .createDescriptorPool = createDescriptorPool,
+        .createDescriptorSetLayout = createDescriptorSetLayout,
+        .createEvent = createEvent,
+        .createFence = createFence,
+        .createFramebuffer = createFramebuffer,
+        .createGraphicsPipeline = createGraphicsPipeline,
+        .createImage = createImage,
+        .createImageView = createImageView,
+        .createPipelineCache = createPipelineCache,
+        .createPipelineLayout = createPipelineLayout,
+        .createQueryPool = createQueryPool,
+        .createRenderPass = createRenderPass,
+        .createSampler = createSampler,
+        .createSemaphore = createSemaphore,
+        .createShaderModule = createShaderModule,
+        .destroy = destroy,
+        .getDeviceGroupPeerMemoryFeatures = getDeviceGroupPeerMemoryFeatures,
+        .getDeviceGroupPresentCapabilitiesKHR = getDeviceGroupPresentCapabilitiesKHR,
+        .getDeviceGroupSurfacePresentModesKHR = getDeviceGroupSurfacePresentModesKHR,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+
+    try self.interface.createQueues(allocator, info);
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn allocateMemory(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.MemoryAllocateInfo) VkError!*base.DeviceMemory {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    const device_memory = try PhiDeviceMemory.create(self, allocator, info.allocation_size, info.memory_type_index);
+    return &device_memory.interface;
+}
+
+pub fn createBuffer(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.BufferCreateInfo) VkError!*base.Buffer {
+    const buffer = try PhiBuffer.create(interface, allocator, info);
+    return &buffer.interface;
+}
+
+pub fn createDescriptorPool(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.DescriptorPoolCreateInfo) VkError!*base.DescriptorPool {
+    const pool = try PhiDescriptorPool.create(interface, allocator, info);
+    return &pool.interface;
+}
+
+pub fn createDescriptorSetLayout(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.DescriptorSetLayoutCreateInfo) VkError!*base.DescriptorSetLayout {
+    const layout = try PhiDescriptorSetLayout.create(interface, allocator, info);
+    return &layout.interface;
+}
+
+pub fn createFence(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.FenceCreateInfo) VkError!*base.Fence {
+    const fence = try PhiFence.create(interface, allocator, info);
+    return &fence.interface;
+}
+
+pub fn createCommandPool(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.CommandPoolCreateInfo) VkError!*base.CommandPool {
+    const pool = try PhiCommandPool.create(interface, allocator, info);
+    return &pool.interface;
+}
+
+pub fn createImage(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.ImageCreateInfo) VkError!*base.Image {
+    const image = try PhiImage.create(interface, allocator, info);
+    return &image.interface;
+}
+
+pub fn createImageView(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.ImageViewCreateInfo) VkError!*base.ImageView {
+    const view = try PhiImageView.create(interface, allocator, info);
+    return &view.interface;
+}
+
+pub fn createBufferView(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.BufferViewCreateInfo) VkError!*base.BufferView {
+    const view = try PhiBufferView.create(interface, allocator, info);
+    return &view.interface;
+}
+
+pub fn createComputePipeline(interface: *Interface, allocator: std.mem.Allocator, cache: ?*base.PipelineCache, info: *const vk.ComputePipelineCreateInfo) VkError!*base.Pipeline {
+    const pipeline = try PhiPipeline.createCompute(interface, allocator, cache, info);
+    return &pipeline.interface;
+}
+
+pub fn createEvent(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.EventCreateInfo) VkError!*base.Event {
+    const event = try PhiEvent.create(interface, allocator, info);
+    return &event.interface;
+}
+
+pub fn createFramebuffer(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.FramebufferCreateInfo) VkError!*base.Framebuffer {
+    const framebuffer = try PhiFramebuffer.create(interface, allocator, info);
+    return &framebuffer.interface;
+}
+
+pub fn createGraphicsPipeline(interface: *Interface, allocator: std.mem.Allocator, cache: ?*base.PipelineCache, info: *const vk.GraphicsPipelineCreateInfo) VkError!*base.Pipeline {
+    const pipeline = try PhiPipeline.createGraphics(interface, allocator, cache, info);
+    return &pipeline.interface;
+}
+
+pub fn createPipelineCache(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.PipelineCacheCreateInfo) VkError!*base.PipelineCache {
+    const cache = try PhiPipelineCache.create(interface, allocator, info);
+    return &cache.interface;
+}
+
+pub fn createPipelineLayout(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.PipelineLayoutCreateInfo) VkError!*base.PipelineLayout {
+    const layout = try PhiPipelineLayout.create(interface, allocator, info);
+    return &layout.interface;
+}
+
+pub fn createQueryPool(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.QueryPoolCreateInfo) VkError!*base.QueryPool {
+    const pool = try PhiQueryPool.create(interface, allocator, info);
+    return &pool.interface;
+}
+
+pub fn createRenderPass(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.RenderPassCreateInfo) VkError!*base.RenderPass {
+    const pass = try PhiRenderPass.create(interface, allocator, info);
+    return &pass.interface;
+}
+
+pub fn createSampler(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.SamplerCreateInfo) VkError!*base.Sampler {
+    const sampler = try PhiSampler.create(interface, allocator, info);
+    return &sampler.interface;
+}
+
+pub fn createSemaphore(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.SemaphoreCreateInfo) VkError!*base.BinarySemaphore {
+    const semaphore = try PhiBinarySemaphore.create(interface, allocator, info);
+    return &semaphore.interface;
+}
+
+pub fn createShaderModule(interface: *Interface, allocator: std.mem.Allocator, info: *const vk.ShaderModuleCreateInfo) VkError!*base.ShaderModule {
+    const module = try PhiShaderModule.create(interface, allocator, info);
+    return &module.interface;
+}
+
+pub fn getDeviceGroupPeerMemoryFeatures(interface: *Interface, heap_index: u32, local_device_index: u32, remote_device_index: u32) VkError!vk.PeerMemoryFeatureFlags {
+    if (heap_index >= interface.physical_device.mem_props.memory_heap_count) return VkError.ValidationFailed;
+    if (local_device_index != 0 or remote_device_index != 0) return VkError.ValidationFailed;
+
+    return .{
+        .copy_src_bit = true,
+        .copy_dst_bit = true,
+        .generic_src_bit = true,
+        .generic_dst_bit = true,
+    };
+}
+
+pub fn getDeviceGroupPresentCapabilitiesKHR(_: *Interface, capabilities: *vk.DeviceGroupPresentCapabilitiesKHR) VkError!void {
+    capabilities.present_mask = @splat(0);
+    capabilities.present_mask[0] = 1;
+    capabilities.modes = .{ .local_bit_khr = true };
+}
+
+pub fn getDeviceGroupSurfacePresentModesKHR(_: *Interface, _: *base.SurfaceKHR) VkError!vk.DeviceGroupPresentModeFlagsKHR {
+    return .{ .local_bit_khr = true };
+}
diff --git a/src/phi/PhiDeviceMemory.zig b/src/phi/PhiDeviceMemory.zig
new file mode 100644
index 0000000..cd24d18
--- /dev/null
+++ b/src/phi/PhiDeviceMemory.zig
@@ -0,0 +1,60 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+const lib = @import("lib.zig");
+
+const PhiDevice = @import("PhiDevice.zig");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.DeviceMemory;
+
+interface: Interface,
+
+pub fn create(device: *PhiDevice, allocator: std.mem.Allocator, size: vk.DeviceSize, memory_type_index: u32) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(&device.interface, size, memory_type_index);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .map = map,
+        .unmap = unmap,
+        .flushRange = flushRange,
+        .invalidateRange = invalidateRange,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn flushRange(interface: *Interface, offset: vk.DeviceSize, size: vk.DeviceSize) VkError!void {
+    _ = interface;
+    _ = offset;
+    _ = size;
+}
+
+pub fn invalidateRange(interface: *Interface, offset: vk.DeviceSize, size: vk.DeviceSize) VkError!void {
+    _ = interface;
+    _ = offset;
+    _ = size;
+}
+
+pub fn map(interface: *Interface, offset: vk.DeviceSize, size: vk.DeviceSize) VkError![]u8 {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = offset;
+    _ = size;
+    return VkError.Unknown;
+}
+
+pub fn unmap(_: *Interface) void {}
diff --git a/src/phi/PhiEvent.zig b/src/phi/PhiEvent.zig
new file mode 100644
index 0000000..68b9b0e
--- /dev/null
+++ b/src/phi/PhiEvent.zig
@@ -0,0 +1,56 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.Event;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.EventCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .getStatus = getStatus,
+        .reset = reset,
+        .signal = signal,
+        .wait = wait,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn getStatus(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn reset(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn signal(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn wait(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
diff --git a/src/phi/PhiFence.zig b/src/phi/PhiFence.zig
new file mode 100644
index 0000000..440a251
--- /dev/null
+++ b/src/phi/PhiFence.zig
@@ -0,0 +1,57 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.Fence;
+
+interface: Interface,
+
+pub fn create(device: *Device, allocator: std.mem.Allocator, info: *const vk.FenceCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .getStatus = getStatus,
+        .reset = reset,
+        .signal = signal,
+        .wait = wait,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn getStatus(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn reset(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn signal(interface: *Interface) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+}
+
+pub fn wait(interface: *Interface, timeout: u64) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    _ = self;
+    _ = timeout;
+}
diff --git a/src/phi/PhiFramebuffer.zig b/src/phi/PhiFramebuffer.zig
new file mode 100644
index 0000000..7c9e5d3
--- /dev/null
+++ b/src/phi/PhiFramebuffer.zig
@@ -0,0 +1,26 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Framebuffer;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.FramebufferCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiImage.zig b/src/phi/PhiImage.zig
new file mode 100644
index 0000000..4c65234
--- /dev/null
+++ b/src/phi/PhiImage.zig
@@ -0,0 +1,78 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+const lib = @import("lib.zig");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Image;
+
+pub const F32x4 = @Vector(4, f32);
+pub const U32x4 = @Vector(4, u32);
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.ImageCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{
+        .destroy = destroy,
+        .getMemoryRequirements = getMemoryRequirements,
+        .getSubresourceLayout = getSubresourceLayout,
+        .getTotalSizeForAspect = getTotalSizeForAspect,
+        .getSliceMemSizeForMipLevel = getSliceMemSizeForMipLevel,
+        .getRowPitchMemSizeForMipLevel = getRowPitchMemSizeForMipLevel,
+        .copyToMemory = copyToMemory,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn getMemoryRequirements(_: *Interface, requirements: *vk.MemoryRequirements) VkError!void {
+    _ = requirements;
+}
+
+pub fn copyToMemory(interface: *const Interface, memory: []u8, subresource: vk.ImageSubresourceLayers) VkError!void {
+    _ = interface;
+    _ = subresource;
+    @memset(memory, 0);
+}
+
+pub fn getTotalSizeForAspect(interface: *const Interface, aspect_mask: vk.ImageAspectFlags) VkError!usize {
+    _ = aspect_mask;
+    return interface.extent.width * interface.extent.height * interface.extent.depth * base.format.texelSize(interface.format);
+}
+
+pub fn getSubresourceLayout(interface: *const Interface, subresource: vk.ImageSubresource) VkError!vk.SubresourceLayout {
+    _ = subresource;
+    return .{
+        .offset = 0,
+        .size = try getTotalSizeForAspect(interface, base.format.toAspect(interface.format)),
+        .row_pitch = getRowPitchMemSizeForMipLevel(interface, base.format.toAspect(interface.format), 0),
+        .array_pitch = getSliceMemSizeForMipLevel(interface, base.format.toAspect(interface.format), 0),
+        .depth_pitch = getSliceMemSizeForMipLevel(interface, base.format.toAspect(interface.format), 0),
+    };
+}
+
+pub fn getSliceMemSizeForMipLevel(interface: *const Interface, aspect_mask: vk.ImageAspectFlags, mip_level: u32) usize {
+    _ = aspect_mask;
+    _ = mip_level;
+    return interface.extent.width * interface.extent.height * base.format.texelSize(interface.format);
+}
+
+pub fn getRowPitchMemSizeForMipLevel(interface: *const Interface, aspect_mask: vk.ImageAspectFlags, mip_level: u32) usize {
+    _ = aspect_mask;
+    _ = mip_level;
+    return interface.extent.width * base.format.texelSize(interface.format);
+}
diff --git a/src/phi/PhiImageView.zig b/src/phi/PhiImageView.zig
new file mode 100644
index 0000000..db0956b
--- /dev/null
+++ b/src/phi/PhiImageView.zig
@@ -0,0 +1,32 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.ImageView;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.ImageViewCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiInstance.zig b/src/phi/PhiInstance.zig
new file mode 100644
index 0000000..e340c0d
--- /dev/null
+++ b/src/phi/PhiInstance.zig
@@ -0,0 +1,119 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+const lib = @import("lib.zig");
+
+const PhiPhysicalDevice = @import("PhiPhysicalDevice.zig");
+
+const Dispatchable = base.Dispatchable;
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Instance;
+
+interface: Interface,
+threaded: std.Io.Threaded,
+io_impl: std.Io,
+allocator: std.mem.Allocator,
+
+fn castExtension(comptime ext: vk.ApiInfo) vk.ExtensionProperties {
+    var props: vk.ExtensionProperties = .{
+        .extension_name = @splat(0),
+        .spec_version = @bitCast(ext.version),
+    };
+    @memcpy(props.extension_name[0..ext.name.len], ext.name);
+    return props;
+}
+
+pub const EXTENSIONS = [_]vk.ExtensionProperties{
+    castExtension(vk.extensions.khr_device_group_creation),
+    castExtension(vk.extensions.khr_get_physical_device_properties_2),
+    castExtension(vk.extensions.khr_surface),
+    castExtension(vk.extensions.khr_wayland_surface),
+};
+
+pub fn create(allocator: std.mem.Allocator, infos: *const vk.InstanceCreateInfo) VkError!*Interface {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    self.allocator = std.heap.smp_allocator;
+    self.threaded = std.Io.Threaded.init(self.allocator, .{});
+    self.io_impl = self.threaded.io();
+
+    self.interface = try base.Instance.init(allocator, infos);
+    self.interface.dispatch_table = &.{
+        .destroy = destroy,
+    };
+
+    self.interface.vtable = &.{
+        .requestPhysicalDevices = requestPhysicalDevices,
+        .releasePhysicalDevices = releasePhysicalDevices,
+        .io = io,
+    };
+
+    return &self.interface;
+}
+
+fn destroy(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    self.threaded.deinit();
+    allocator.destroy(self);
+}
+
+fn requestPhysicalDevices(interface: *Interface, allocator: std.mem.Allocator, devices: []base.drm.Card) VkError!void {
+    if (interface.physical_devices.items.len != 0) {
+        return;
+    }
+
+    const io_var = interface.io();
+
+    for (devices[0..]) |device| {
+        const drm_device = device.getDevice(io_var, allocator, .{}) catch continue;
+
+        if (drm_device.node_type != .render or
+            std.meta.activeTag(drm_device.device_info) != .pci or
+            drm_device.device_info.pci.vendor_id != lib.INTEL_PCI_VENDOR_ID)
+            continue;
+
+        const physical_device = try PhiPhysicalDevice.create(allocator, interface, &drm_device);
+        errdefer physical_device.interface.release(allocator) catch {};
+
+        const dispatchable = try Dispatchable(base.PhysicalDevice).wrap(allocator, &physical_device.interface);
+        errdefer dispatchable.destroy(allocator);
+
+        interface.physical_devices.append(allocator, dispatchable) catch return VkError.OutOfHostMemory;
+    }
+}
+
+fn releasePhysicalDevices(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
+    var result: ?VkError = null;
+
+    for (interface.physical_devices.items) |physical_device| {
+        physical_device.object.release(allocator) catch |err| {
+            if (result == null) {
+                result = err;
+            }
+        };
+        physical_device.destroy(allocator);
+    }
+
+    interface.physical_devices.deinit(allocator);
+    interface.physical_devices = .empty;
+
+    if (result) |err| {
+        return err;
+    }
+}
+
+fn io(interface: *Interface) std.Io {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    return self.io_impl;
+}
+
+fn mapDeviceEnumerationError(err: anyerror) VkError {
+    return switch (err) {
+        error.OutOfMemory => VkError.OutOfHostMemory,
+        else => VkError.InitializationFailed,
+    };
+}
diff --git a/src/phi/PhiPhysicalDevice.zig b/src/phi/PhiPhysicalDevice.zig
new file mode 100644
index 0000000..13463d4
--- /dev/null
+++ b/src/phi/PhiPhysicalDevice.zig
@@ -0,0 +1,854 @@
+const std = @import("std");
+const builtin = @import("builtin");
+const vk = @import("vulkan");
+const base = @import("base");
+const lib = @import("lib.zig");
+
+const pci_ids = @import("pci_ids.zig").map;
+
+const PhiDevice = @import("PhiDevice.zig");
+
+const VkError = base.VkError;
+const VulkanAllocator = base.VulkanAllocator;
+const SurfaceKHR = base.SurfaceKHR;
+
+const Self = @This();
+pub const Interface = base.PhysicalDevice;
+
+fn castExtension(comptime ext: vk.ApiInfo) vk.ExtensionProperties {
+    var props: vk.ExtensionProperties = .{
+        .extension_name = @splat(0),
+        .spec_version = @bitCast(ext.version),
+    };
+    @memcpy(props.extension_name[0..ext.name.len], ext.name);
+    return props;
+}
+
+pub const EXTENSIONS = [_]vk.ExtensionProperties{
+    castExtension(vk.extensions.khr_device_group),
+    castExtension(vk.extensions.khr_swapchain),
+};
+
+interface: Interface,
+
+pub fn create(allocator: std.mem.Allocator, instance: *base.Instance, drm_device: *const base.drm.Device) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(allocator, instance);
+
+    interface.dispatch_table = &.{
+        .createDevice = createDevice,
+        .getFormatProperties = getFormatProperties,
+        .getImageFormatProperties = getImageFormatProperties,
+        .getSparseImageFormatProperties = getSparseImageFormatProperties,
+        .enumerateLayerProperties = enumerateLayerProperties,
+        .enumerateExtensionProperties = enumerateExtensionProperties,
+        .release = destroy,
+
+        // VK_KHR_get_physical_device_properties_2
+        .getSparseImageFormatProperties2 = getSparseImageFormatProperties2,
+
+        // VK_KHR_surface
+        .getSurfaceSupportKHR = getSurfaceSupportKHR,
+    };
+
+    interface.props.api_version = @bitCast(lib.VULKAN_VERSION);
+    interface.props.vendor_id = lib.INTEL_PCI_VENDOR_ID;
+    interface.props.driver_version = @bitCast(base.DRIVER_VERSION);
+    interface.props.device_id = drm_device.device_info.pci.device_id;
+    interface.props.device_type = .discrete_gpu;
+
+    @memset(interface.props.device_name[0..], 0);
+
+    for (pci_ids[0..]) |pci| {
+        if (pci.id != drm_device.device_info.pci.device_id)
+            continue;
+
+        const len = @min(vk.MAX_PHYSICAL_DEVICE_NAME_SIZE, pci.name.len);
+        @memcpy(interface.props.device_name[0..len], pci.name[0..len]);
+
+        const driver_mark = " [Phi ApeDriver]";
+
+        @memcpy(interface.props.device_name[len .. len + driver_mark.len], driver_mark);
+
+        break;
+    }
+
+    interface.props.pipeline_cache_uuid = undefined;
+    interface.props.limits = .{
+        .max_image_dimension_1d = 4096,
+        .max_image_dimension_2d = 4096,
+        .max_image_dimension_3d = 256,
+        .max_image_dimension_cube = 4096,
+        .max_image_array_layers = 256,
+        .max_texel_buffer_elements = 65536,
+        .max_uniform_buffer_range = 16384,
+        .max_storage_buffer_range = 134217728,
+        .max_push_constants_size = 256,
+        .max_memory_allocation_count = 1024,
+        .max_sampler_allocation_count = 4096,
+        .buffer_image_granularity = 131072,
+        .sparse_address_space_size = 0,
+        .max_bound_descriptor_sets = 8,
+        .max_per_stage_descriptor_samplers = 16,
+        .max_per_stage_descriptor_uniform_buffers = 12,
+        .max_per_stage_descriptor_storage_buffers = 4,
+        .max_per_stage_descriptor_sampled_images = 16,
+        .max_per_stage_descriptor_storage_images = 4,
+        .max_per_stage_descriptor_input_attachments = 4,
+        .max_per_stage_resources = 128,
+        .max_descriptor_set_samplers = 96,
+        .max_descriptor_set_uniform_buffers = 72,
+        .max_descriptor_set_uniform_buffers_dynamic = 8,
+        .max_descriptor_set_storage_buffers = 24,
+        .max_descriptor_set_storage_buffers_dynamic = 4,
+        .max_descriptor_set_sampled_images = 96,
+        .max_descriptor_set_storage_images = 24,
+        .max_descriptor_set_input_attachments = 4,
+        .max_vertex_input_attributes = 32,
+        .max_vertex_input_bindings = 32,
+        .max_vertex_input_attribute_offset = 2047,
+        .max_vertex_input_binding_stride = 2048,
+        .max_vertex_output_components = 64,
+        .max_tessellation_generation_level = 0,
+        .max_tessellation_patch_size = 0,
+        .max_tessellation_control_per_vertex_input_components = 0,
+        .max_tessellation_control_per_vertex_output_components = 0,
+        .max_tessellation_control_per_patch_output_components = 0,
+        .max_tessellation_control_total_output_components = 0,
+        .max_tessellation_evaluation_input_components = 0,
+        .max_tessellation_evaluation_output_components = 0,
+        .max_geometry_shader_invocations = 0,
+        .max_geometry_input_components = 0,
+        .max_geometry_output_components = 0,
+        .max_geometry_output_vertices = 0,
+        .max_geometry_total_output_components = 0,
+        .max_fragment_input_components = 64,
+        .max_fragment_output_attachments = 4,
+        .max_fragment_dual_src_attachments = 0,
+        .max_fragment_combined_output_resources = 4,
+        .max_compute_shared_memory_size = 16384,
+        .max_compute_work_group_count = .{ 65535, 65535, 65535 },
+        .max_compute_work_group_invocations = 128,
+        .max_compute_work_group_size = .{ 128, 128, 64 },
+        .sub_pixel_precision_bits = 4,
+        .sub_texel_precision_bits = 4,
+        .mipmap_precision_bits = 4,
+        .max_draw_indexed_index_value = 4294967295,
+        .max_draw_indirect_count = 65535,
+        .max_sampler_lod_bias = 2.0,
+        .max_sampler_anisotropy = 1.0,
+        .max_viewports = 1,
+        .max_viewport_dimensions = .{ 4096, 4096 },
+        .viewport_bounds_range = .{ -8192.0, 8191.0 },
+        .viewport_sub_pixel_bits = 0,
+        .min_memory_map_alignment = 64,
+        .min_texel_buffer_offset_alignment = 256,
+        .min_uniform_buffer_offset_alignment = 256,
+        .min_storage_buffer_offset_alignment = 256,
+        .min_texel_offset = -8,
+        .max_texel_offset = 7,
+        .min_texel_gather_offset = 0,
+        .max_texel_gather_offset = 0,
+        .min_interpolation_offset = 0.0,
+        .max_interpolation_offset = 0.0,
+        .sub_pixel_interpolation_offset_bits = 0,
+        .max_framebuffer_width = 4096,
+        .max_framebuffer_height = 4096,
+        .max_framebuffer_layers = 256,
+        .framebuffer_color_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .framebuffer_depth_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .framebuffer_stencil_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .framebuffer_no_attachments_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .max_color_attachments = 4,
+        .sampled_image_color_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .sampled_image_integer_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .sampled_image_depth_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .sampled_image_stencil_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .storage_image_sample_counts = .{ .@"1_bit" = true, .@"4_bit" = true },
+        .max_sample_mask_words = 1,
+        .timestamp_compute_and_graphics = .false,
+        .timestamp_period = 1.0,
+        .max_clip_distances = 0,
+        .max_cull_distances = 0,
+        .max_combined_clip_and_cull_distances = 0,
+        .discrete_queue_priorities = 2,
+        .point_size_range = .{ 1.0, 1.0 },
+        .line_width_range = .{ 1.0, 1.0 },
+        .point_size_granularity = 0.0,
+        .line_width_granularity = 0.0,
+        .strict_lines = .false,
+        .standard_sample_locations = .true,
+        .optimal_buffer_copy_offset_alignment = 1,
+        .optimal_buffer_copy_row_pitch_alignment = 1,
+        .non_coherent_atom_size = 256,
+    };
+
+    interface.mem_props.memory_type_count = 1;
+    interface.mem_props.memory_types[0] = .{
+        .heap_index = 0,
+        .property_flags = .{
+            .device_local_bit = true,
+            .host_visible_bit = true,
+            .host_coherent_bit = true,
+            .host_cached_bit = true,
+        },
+    };
+    interface.mem_props.memory_heap_count = 1;
+    interface.mem_props.memory_heaps[0] = .{
+        .size = std.process.totalSystemMemory() catch 0,
+        .flags = .{ .device_local_bit = true },
+    };
+
+    interface.features = .{
+        .robust_buffer_access = .true,
+        .shader_float_64 = .true,
+        .shader_int_64 = .true,
+        .shader_int_16 = .true,
+    };
+
+    var queue_family_props = [_]vk.QueueFamilyProperties{
+        .{
+            .queue_flags = .{ .graphics_bit = true, .compute_bit = true, .transfer_bit = true },
+            .queue_count = 1,
+            .timestamp_valid_bits = 0,
+            .min_image_transfer_granularity = .{ .width = 1, .height = 1, .depth = 1 },
+        },
+    };
+    interface.queue_family_props.appendSlice(allocator, queue_family_props[0..]) catch return VkError.OutOfHostMemory;
+
+    self.* = .{
+        .interface = interface,
+    };
+
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn createDevice(interface: *Interface, allocator: std.mem.Allocator, infos: *const vk.DeviceCreateInfo) VkError!*base.Device {
+    const device = try PhiDevice.create(interface.instance, interface, allocator, infos);
+    return &device.interface;
+}
+
+pub fn enumerateLayerProperties(_: *const Interface, count: *u32, p_properties: ?[*]vk.LayerProperties) VkError!void {
+    count.* = 0;
+    _ = p_properties;
+}
+
+pub fn enumerateExtensionProperties(_: *const Interface, layer_name: ?[]const u8, count: *u32, p_properties: ?[*]vk.ExtensionProperties) VkError!void {
+    if (layer_name) |_| {
+        return VkError.LayerNotPresent;
+    }
+
+    const available = EXTENSIONS.len;
+    if (p_properties) |properties| {
+        const write_count = @min(count.*, available);
+        for (EXTENSIONS[0..write_count], properties[0..write_count]) |ext, *prop| {
+            prop.* = ext;
+        }
+        count.* = @intCast(write_count);
+        if (write_count < available) return VkError.Incomplete;
+    } else {
+        count.* = @intCast(available);
+    }
+}
+
+pub fn getFormatProperties(interface: *Interface, format: vk.Format) VkError!vk.FormatProperties {
+    _ = interface;
+    var properties: vk.FormatProperties = .{};
+
+    switch (format) {
+        // Formats which can be sampled *and* filtered
+        .r4g4b4a4_unorm_pack16,
+        .b4g4r4a4_unorm_pack16,
+        .a4r4g4b4_unorm_pack16,
+        .a4b4g4r4_unorm_pack16,
+        .r5g6b5_unorm_pack16,
+        .b5g6r5_unorm_pack16,
+        .r5g5b5a1_unorm_pack16,
+        .b5g5r5a1_unorm_pack16,
+        .a1r5g5b5_unorm_pack16,
+        .r8_unorm,
+        .r8_srgb,
+        .r8_snorm,
+        .r8g8_unorm,
+        .r8g8_srgb,
+        .r8g8_snorm,
+        .r8g8b8a8_unorm,
+        .r8g8b8a8_snorm,
+        .r8g8b8a8_srgb,
+        .b8g8r8a8_unorm,
+        .b8g8r8a8_srgb,
+        .a8b8g8r8_unorm_pack32,
+        .a8b8g8r8_snorm_pack32,
+        .a8b8g8r8_srgb_pack32,
+        .a2b10g10r10_unorm_pack32,
+        .a2r10g10b10_unorm_pack32,
+        .r16_unorm,
+        .r16_snorm,
+        .r16_sfloat,
+        .r16g16_unorm,
+        .r16g16_snorm,
+        .r16g16_sfloat,
+        .r16g16b16a16_unorm,
+        .r16g16b16a16_snorm,
+        .r16g16b16a16_sfloat,
+        .r32_sfloat,
+        .r32g32_sfloat,
+        .r32g32b32a32_sfloat,
+        .b10g11r11_ufloat_pack32,
+        .e5b9g9r9_ufloat_pack32,
+        //.bc1_rgb_unorm_block,
+        //.bc1_rgb_srgb_block,
+        //.bc1_rgba_unorm_block,
+        //.bc1_rgba_srgb_block,
+        //.bc2_unorm_block,
+        //.bc2_srgb_block,
+        //.bc3_unorm_block,
+        //.bc3_srgb_block,
+        //.bc4_unorm_block,
+        //.bc4_snorm_block,
+        //.bc5_unorm_block,
+        //.bc5_snorm_block,
+        //.bc6h_ufloat_block,
+        //.bc6h_sfloat_block,
+        //.bc7_unorm_block,
+        //.bc7_srgb_block,
+        //.etc2_r8g8b8_unorm_block,
+        //.etc2_r8g8b8_srgb_block,
+        //.etc2_r8g8b8a1_unorm_block,
+        //.etc2_r8g8b8a1_srgb_block,
+        //.etc2_r8g8b8a8_unorm_block,
+        //.etc2_r8g8b8a8_srgb_block,
+        //.eac_r11_unorm_block,
+        //.eac_r11_snorm_block,
+        //.eac_r11g11_unorm_block,
+        //.eac_r11g11_snorm_block,
+        //.astc_4x_4_unorm_block,
+        //.astc_5x_4_unorm_block,
+        //.astc_5x_5_unorm_block,
+        //.astc_6x_5_unorm_block,
+        //.astc_6x_6_unorm_block,
+        //.astc_8x_5_unorm_block,
+        //.astc_8x_6_unorm_block,
+        //.astc_8x_8_unorm_block,
+        //.astc_1_0x_5_unorm_block,
+        //.astc_1_0x_6_unorm_block,
+        //.astc_1_0x_8_unorm_block,
+        //.astc_1_0x_10_unorm_block,
+        //.astc_1_2x_10_unorm_block,
+        //.astc_1_2x_12_unorm_block,
+        //.astc_4x_4_srgb_block,
+        //.astc_5x_4_srgb_block,
+        //.astc_5x_5_srgb_block,
+        //.astc_6x_5_srgb_block,
+        //.astc_6x_6_srgb_block,
+        //.astc_8x_5_srgb_block,
+        //.astc_8x_6_srgb_block,
+        //.astc_8x_8_srgb_block,
+        //.astc_1_0x_5_srgb_block,
+        //.astc_1_0x_6_srgb_block,
+        //.astc_1_0x_8_srgb_block,
+        //.astc_1_0x_10_srgb_block,
+        //.astc_1_2x_10_srgb_block,
+        //.astc_1_2x_12_srgb_block,
+        .d16_unorm,
+        .d32_sfloat,
+        .d32_sfloat_s8_uint,
+        => {
+            properties.optimal_tiling_features.blit_src_bit = true;
+            properties.optimal_tiling_features.sampled_image_bit = true;
+            properties.optimal_tiling_features.transfer_dst_bit = true;
+            properties.optimal_tiling_features.transfer_src_bit = true;
+            properties.optimal_tiling_features.sampled_image_filter_linear_bit = true;
+        },
+
+        // Formats which can be sampled, but don't support filtering
+        .r8_uint,
+        .r8_sint,
+        .r8g8_uint,
+        .r8g8_sint,
+        .r8g8b8a8_uint,
+        .r8g8b8a8_sint,
+        .a8b8g8r8_uint_pack32,
+        .a8b8g8r8_sint_pack32,
+        .a2b10g10r10_uint_pack32,
+        .a2r10g10b10_uint_pack32,
+        .r16_uint,
+        .r16_sint,
+        .r16g16_uint,
+        .r16g16_sint,
+        .r16g16b16a16_uint,
+        .r16g16b16a16_sint,
+        .r32_uint,
+        .r32_sint,
+        .r32g32_uint,
+        .r32g32_sint,
+        .r32g32b32a32_uint,
+        .r32g32b32a32_sint,
+        .s8_uint,
+        => {
+            properties.optimal_tiling_features.blit_src_bit = true;
+            properties.optimal_tiling_features.sampled_image_bit = true;
+            properties.optimal_tiling_features.transfer_dst_bit = true;
+            properties.optimal_tiling_features.transfer_src_bit = true;
+        },
+
+        // YCbCr formats
+        .g8_b8_r8_3plane_420_unorm,
+        .g8_b8r8_2plane_420_unorm,
+        .g10x6_b10x6r10x6_2plane_420_unorm_3pack16,
+        => {
+            properties.optimal_tiling_features.sampled_image_bit = true;
+            properties.optimal_tiling_features.sampled_image_filter_linear_bit = true;
+            properties.optimal_tiling_features.sampled_image_ycbcr_conversion_linear_filter_bit = true;
+            properties.optimal_tiling_features.transfer_src_bit = true;
+            properties.optimal_tiling_features.transfer_dst_bit = true;
+            properties.optimal_tiling_features.cosited_chroma_samples_bit = true;
+        },
+        else => {},
+    }
+
+    switch (format) {
+        // Vulkan 1.0 mandatory storage image formats supporting atomic operations
+        .r32_uint,
+        .r32_sint,
+        => {
+            properties.buffer_features.storage_texel_buffer_bit = true;
+            properties.buffer_features.storage_texel_buffer_atomic_bit = true;
+            properties.optimal_tiling_features.storage_image_bit = true;
+            properties.optimal_tiling_features.storage_image_atomic_bit = true;
+        },
+        // vulkan 1.0 mandatory storage image formats
+        .r8g8b8a8_unorm,
+        .r8g8b8a8_snorm,
+        .r8g8b8a8_uint,
+        .r8g8b8a8_sint,
+        .r16g16b16a16_uint,
+        .r16g16b16a16_sint,
+        .r16g16b16a16_sfloat,
+        .r32_sfloat,
+        .r32g32_uint,
+        .r32g32_sint,
+        .r32g32_sfloat,
+        .r32g32b32a32_uint,
+        .r32g32b32a32_sint,
+        .r32g32b32a32_sfloat,
+        .a2b10g10r10_unorm_pack32,
+        .a2b10g10r10_uint_pack32,
+        // vulkan 1.0 shaderstorageimageextendedformats
+        .r16g16_sfloat,
+        .b10g11r11_ufloat_pack32,
+        .r16_sfloat,
+        .r16g16b16a16_unorm,
+        .r16g16_unorm,
+        .r8g8_unorm,
+        .r16_unorm,
+        .r8_unorm,
+        .r16g16b16a16_snorm,
+        .r16g16_snorm,
+        .r8g8_snorm,
+        .r16_snorm,
+        .r8_snorm,
+        .r16g16_sint,
+        .r8g8_sint,
+        .r16_sint,
+        .r8_sint,
+        .r16g16_uint,
+        .r8g8_uint,
+        .r16_uint,
+        .r8_uint,
+        // additional formats not listed under "formats without shader storage format"
+        .a8b8g8r8_unorm_pack32,
+        .a8b8g8r8_snorm_pack32,
+        .a8b8g8r8_uint_pack32,
+        .a8b8g8r8_sint_pack32,
+        .b8g8r8a8_unorm,
+        .b8g8r8a8_srgb,
+        => {
+            properties.optimal_tiling_features.storage_image_bit = true;
+            properties.buffer_features.storage_texel_buffer_bit = true;
+        },
+
+        else => {},
+    }
+
+    switch (format) {
+        .r5g6b5_unorm_pack16,
+        .a1r5g5b5_unorm_pack16,
+        .r4g4b4a4_unorm_pack16,
+        .b4g4r4a4_unorm_pack16,
+        .a4r4g4b4_unorm_pack16,
+        .a4b4g4r4_unorm_pack16,
+        .b5g6r5_unorm_pack16,
+        .r5g5b5a1_unorm_pack16,
+        .b5g5r5a1_unorm_pack16,
+        .r8_unorm,
+        .r8g8_unorm,
+        .r8g8b8a8_unorm,
+        .r8g8b8a8_srgb,
+        .b8g8r8a8_unorm,
+        .b8g8r8a8_srgb,
+        .a8b8g8r8_unorm_pack32,
+        .a8b8g8r8_srgb_pack32,
+        .a2b10g10r10_unorm_pack32,
+        .a2r10g10b10_unorm_pack32,
+        .r16_sfloat,
+        .r16g16_sfloat,
+        .r16g16b16a16_sfloat,
+        .r32_sfloat,
+        .r32g32_sfloat,
+        .r32g32b32a32_sfloat,
+        .b10g11r11_ufloat_pack32,
+        .r8_uint,
+        .r8_sint,
+        .r8g8_uint,
+        .r8g8_sint,
+        .r8g8b8a8_uint,
+        .r8g8b8a8_sint,
+        .a8b8g8r8_uint_pack32,
+        .a8b8g8r8_sint_pack32,
+        .a2b10g10r10_uint_pack32,
+        .a2r10g10b10_uint_pack32,
+        .r16_unorm,
+        .r16_uint,
+        .r16_sint,
+        .r16g16_unorm,
+        .r16g16_uint,
+        .r16g16_sint,
+        .r16g16b16a16_unorm,
+        .r16g16b16a16_uint,
+        .r16g16b16a16_sint,
+        .r32_uint,
+        .r32_sint,
+        .r32g32_uint,
+        .r32g32_sint,
+        .r32g32b32a32_uint,
+        .r32g32b32a32_sint,
+        => {
+            properties.optimal_tiling_features.color_attachment_bit = true;
+            properties.optimal_tiling_features.blit_dst_bit = true;
+        },
+        .s8_uint,
+        .d16_unorm,
+        .d32_sfloat, // note: either vk_format_d32_sfloat or vk_format_x8_d24_unorm_pack32 must be supported
+        .d32_sfloat_s8_uint,
+        => { // note: either vk_format_d24_unorm_s8_uint or vk_format_d32_sfloat_s8_uint must be supported
+            properties.optimal_tiling_features.depth_stencil_attachment_bit = true;
+        },
+
+        else => {},
+    }
+
+    if (base.format.supportsColorAttachemendBlend(format)) {
+        properties.optimal_tiling_features.color_attachment_blend_bit = true;
+    }
+
+    switch (format) {
+        .r8_unorm,
+        .r8_snorm,
+        .r8_uscaled,
+        .r8_sscaled,
+        .r8_uint,
+        .r8_sint,
+        .r8g8_unorm,
+        .r8g8_snorm,
+        .r8g8_uscaled,
+        .r8g8_sscaled,
+        .r8g8_uint,
+        .r8g8_sint,
+        .r8g8b8a8_unorm,
+        .r8g8b8a8_snorm,
+        .r8g8b8a8_uscaled,
+        .r8g8b8a8_sscaled,
+        .r8g8b8a8_uint,
+        .r8g8b8a8_sint,
+        .b8g8r8a8_unorm,
+        .a8b8g8r8_unorm_pack32,
+        .a8b8g8r8_snorm_pack32,
+        .a8b8g8r8_uscaled_pack32,
+        .a8b8g8r8_sscaled_pack32,
+        .a8b8g8r8_uint_pack32,
+        .a8b8g8r8_sint_pack32,
+        .a2r10g10b10_unorm_pack32,
+        .a2r10g10b10_snorm_pack32,
+        .a2r10g10b10_uint_pack32,
+        .a2r10g10b10_sint_pack32,
+        .a2b10g10r10_unorm_pack32,
+        .a2b10g10r10_snorm_pack32,
+        .a2b10g10r10_uint_pack32,
+        .a2b10g10r10_sint_pack32,
+        .r16_unorm,
+        .r16_snorm,
+        .r16_uscaled,
+        .r16_sscaled,
+        .r16_uint,
+        .r16_sint,
+        .r16_sfloat,
+        .r16g16_unorm,
+        .r16g16_snorm,
+        .r16g16_uscaled,
+        .r16g16_sscaled,
+        .r16g16_uint,
+        .r16g16_sint,
+        .r16g16_sfloat,
+        .r16g16b16a16_unorm,
+        .r16g16b16a16_snorm,
+        .r16g16b16a16_uscaled,
+        .r16g16b16a16_sscaled,
+        .r16g16b16a16_uint,
+        .r16g16b16a16_sint,
+        .r16g16b16a16_sfloat,
+        .r32_uint,
+        .r32_sint,
+        .r32_sfloat,
+        .r32g32_uint,
+        .r32g32_sint,
+        .r32g32_sfloat,
+        .r32g32b32_uint,
+        .r32g32b32_sint,
+        .r32g32b32_sfloat,
+        .r32g32b32a32_uint,
+        .r32g32b32a32_sint,
+        .r32g32b32a32_sfloat,
+        => properties.buffer_features.vertex_buffer_bit = true,
+        else => {},
+    }
+
+    switch (format) {
+        // Vulkan 1.1 mandatory
+        .r8_unorm,
+        .r8_snorm,
+        .r8_uint,
+        .r8_sint,
+        .r8g8_unorm,
+        .r8g8_snorm,
+        .r8g8_uint,
+        .r8g8_sint,
+        .r8g8b8a8_unorm,
+        .r8g8b8a8_snorm,
+        .r8g8b8a8_uint,
+        .r8g8b8a8_sint,
+        .b8g8r8a8_unorm,
+        .a8b8g8r8_unorm_pack32,
+        .a8b8g8r8_snorm_pack32,
+        .a8b8g8r8_uint_pack32,
+        .a8b8g8r8_sint_pack32,
+        .a2b10g10r10_unorm_pack32,
+        .a2b10g10r10_uint_pack32,
+        .r16_uint,
+        .r16_sint,
+        .r16_sfloat,
+        .r16g16_uint,
+        .r16g16_sint,
+        .r16g16_sfloat,
+        .r16g16b16a16_uint,
+        .r16g16b16a16_sint,
+        .r16g16b16a16_sfloat,
+        .r32_uint,
+        .r32_sint,
+        .r32_sfloat,
+        .r32g32_uint,
+        .r32g32_sint,
+        .r32g32_sfloat,
+        .r32g32b32a32_uint,
+        .r32g32b32a32_sint,
+        .r32g32b32a32_sfloat,
+        .b10g11r11_ufloat_pack32,
+        // optional
+        .a2r10g10b10_unorm_pack32,
+        .a2r10g10b10_uint_pack32,
+        => properties.buffer_features.uniform_texel_buffer_bit = true,
+        else => {},
+    }
+
+    if (properties.optimal_tiling_features.toInt() != 0) {
+        // "Formats that are required to support VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT must also support
+        //  VK_FORMAT_FEATURE_TRANSFER_SRC_BIT and VK_FORMAT_FEATURE_TRANSFER_DST_BIT."
+
+        properties.linear_tiling_features.transfer_src_bit = true;
+        properties.linear_tiling_features.transfer_dst_bit = true;
+    }
+
+    return properties;
+}
+
+pub fn getImageFormatProperties(
+    interface: *Interface,
+    format: vk.Format,
+    image_type: vk.ImageType,
+    tiling: vk.ImageTiling,
+    usage: vk.ImageUsageFlags,
+    _: vk.ImageCreateFlags,
+) VkError!vk.ImageFormatProperties {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    if (!try self.isFormatSupported(format, image_type, tiling, usage))
+        return VkError.FormatNotSupported;
+
+    const properties: vk.ImageFormatProperties = .{
+        .max_extent = .{ .width = 0, .height = 0, .depth = 1 },
+        .max_mip_levels = 1,
+        .max_array_layers = 1,
+        .sample_counts = .{ .@"1_bit" = true },
+        .max_resource_size = std.math.maxInt(u32),
+    };
+
+    return properties;
+}
+
+/// Phi does not support sparse images.
+pub fn getSparseImageFormatProperties(
+    interface: *Interface,
+    format: vk.Format,
+    image_type: vk.ImageType,
+    samples: vk.SampleCountFlags,
+    tiling: vk.ImageTiling,
+    usage: vk.ImageUsageFlags,
+    properties: ?[*]vk.SparseImageFormatProperties,
+) VkError!u32 {
+    _ = interface;
+    _ = format;
+    _ = image_type;
+    _ = samples;
+    _ = tiling;
+    _ = usage;
+    _ = properties;
+    return 0;
+}
+
+/// Phi does not support sparse images.
+pub fn getSparseImageFormatProperties2(
+    interface: *Interface,
+    format: vk.Format,
+    image_type: vk.ImageType,
+    samples: vk.SampleCountFlags,
+    tiling: vk.ImageTiling,
+    usage: vk.ImageUsageFlags,
+    properties: ?[*]vk.SparseImageFormatProperties2,
+) VkError!u32 {
+    _ = interface;
+    _ = format;
+    _ = image_type;
+    _ = samples;
+    _ = tiling;
+    _ = usage;
+    _ = properties;
+    return 0;
+}
+
+fn isFormatSupported(
+    self: *Self,
+    format: vk.Format,
+    image_type: vk.ImageType,
+    tiling: vk.ImageTiling,
+    usage: vk.ImageUsageFlags,
+) VkError!bool {
+    const format_properties = try self.interface.getFormatProperties(format);
+    const format_features = switch (tiling) {
+        .linear => format_properties.linear_tiling_features,
+        .optimal => format_properties.optimal_tiling_features,
+        else => return false,
+    };
+
+    if (!checkFormatUsage(usage, format_features))
+        return false;
+
+    const all_recognized_usages: vk.ImageUsageFlags = .{
+        .sampled_bit = true,
+        .storage_bit = true,
+        .color_attachment_bit = true,
+        .depth_stencil_attachment_bit = true,
+        .input_attachment_bit = true,
+        .transfer_src_bit = true,
+        .transfer_dst_bit = true,
+        .transient_attachment_bit = true,
+    };
+
+    if (usage.subtract(all_recognized_usages).toInt() != 0)
+        return false;
+
+    if (usage.sampled_bit) {
+        if (tiling != .linear and !format_features.sampled_image_bit)
+            return false;
+    }
+
+    if (tiling == .linear) {
+        if (image_type != .@"2d")
+            return false;
+        if (base.format.isDepth(format) or base.format.isStencil(format))
+            return false;
+    }
+
+    return true;
+}
+
+fn checkFormatUsage(usage: vk.ImageUsageFlags, features: vk.FormatFeatureFlags) bool {
+    if (usage.sampled_bit and !features.sampled_image_bit)
+        return false;
+    if (usage.storage_bit and !features.storage_image_bit)
+        return false;
+    if (usage.color_attachment_bit and !features.color_attachment_bit)
+        return false;
+    if (usage.depth_stencil_attachment_bit and !features.depth_stencil_attachment_bit)
+        return false;
+    if (usage.input_attachment_bit and !(features.color_attachment_bit or features.depth_stencil_attachment_bit))
+        return false;
+    if (usage.transfer_src_bit and !features.transfer_src_bit)
+        return false;
+    if (usage.transfer_dst_bit and !features.transfer_dst_bit)
+        return false;
+    return true;
+}
+
+pub fn getSurfaceSupportKHR(_: *Interface, _: u32, _: *SurfaceKHR) VkError!bool {
+    return true;
+}
+
+const CpuidRegs = packed struct {
+    eax: u32,
+    ebx: u32,
+    ecx: u32,
+    edx: u32,
+};
+
+fn cpuid(leaf_id: u32, subleaf_id: u32) CpuidRegs {
+    comptime {
+        switch (builtin.cpu.arch) {
+            .x86, .x86_64 => {},
+            else => @compileError("cpuid is only available on x86/x86_64"),
+        }
+    }
+
+    var eax: u32 = undefined;
+    var ebx: u32 = undefined;
+    var ecx: u32 = undefined;
+    var edx: u32 = undefined;
+
+    asm volatile ("cpuid"
+        : [_] "={eax}" (eax),
+          [_] "={ebx}" (ebx),
+          [_] "={ecx}" (ecx),
+          [_] "={edx}" (edx),
+        : [_] "{eax}" (leaf_id),
+          [_] "{ecx}" (subleaf_id),
+    );
+
+    return .{
+        .eax = eax,
+        .ebx = ebx,
+        .ecx = ecx,
+        .edx = edx,
+    };
+}
+
+fn writeU32Le(dst: []u8, offset: usize, value: u32) void {
+    dst[offset + 0] = @truncate(value);
+    dst[offset + 1] = @truncate(value >> 8);
+    dst[offset + 2] = @truncate(value >> 16);
+    dst[offset + 3] = @truncate(value >> 24);
+}
diff --git a/src/phi/PhiPipeline.zig b/src/phi/PhiPipeline.zig
new file mode 100644
index 0000000..a61048b
--- /dev/null
+++ b/src/phi/PhiPipeline.zig
@@ -0,0 +1,37 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Pipeline;
+
+interface: Interface,
+
+pub fn createCompute(device: *base.Device, allocator: std.mem.Allocator, cache: ?*base.PipelineCache, info: *const vk.ComputePipelineCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.initCompute(device, allocator, cache, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn createGraphics(device: *base.Device, allocator: std.mem.Allocator, cache: ?*base.PipelineCache, info: *const vk.GraphicsPipelineCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.initGraphics(device, allocator, cache, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiPipelineCache.zig b/src/phi/PhiPipelineCache.zig
new file mode 100644
index 0000000..ca02598
--- /dev/null
+++ b/src/phi/PhiPipelineCache.zig
@@ -0,0 +1,26 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.PipelineCache;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.PipelineCacheCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiPipelineLayout.zig b/src/phi/PhiPipelineLayout.zig
new file mode 100644
index 0000000..3f0bfc7
--- /dev/null
+++ b/src/phi/PhiPipelineLayout.zig
@@ -0,0 +1,32 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.PipelineLayout;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.PipelineLayoutCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiQueryPool.zig b/src/phi/PhiQueryPool.zig
new file mode 100644
index 0000000..eca39ba
--- /dev/null
+++ b/src/phi/PhiQueryPool.zig
@@ -0,0 +1,33 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.QueryPool;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.QueryPoolCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.free(interface.queries);
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiQueue.zig b/src/phi/PhiQueue.zig
new file mode 100644
index 0000000..163cd53
--- /dev/null
+++ b/src/phi/PhiQueue.zig
@@ -0,0 +1,64 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const PhiCommandBuffer = @import("PhiCommandBuffer.zig");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Queue;
+
+interface: Interface,
+
+pub fn create(allocator: std.mem.Allocator, device: *base.Device, index: u32, family_index: u32, flags: vk.DeviceQueueCreateFlags) VkError!*Interface {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(allocator, device, index, family_index, flags);
+    interface.dispatch_table = &.{
+        .bindSparse = bindSparse,
+        .submit = submit,
+        .waitIdle = waitIdle,
+    };
+
+    self.* = .{ .interface = interface };
+    return &self.interface;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) VkError!void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn bindSparse(interface: *Interface, info: []const vk.BindSparseInfo, fence: ?*base.Fence) VkError!void {
+    _ = interface;
+    _ = info;
+    _ = fence;
+    return VkError.FeatureNotPresent;
+}
+
+pub fn submit(interface: *Interface, infos: []Interface.SubmitInfo, fence: ?*base.Fence) VkError!void {
+    _ = interface;
+    for (infos) |info| {
+        for (info.wait_semaphores.items) |semaphore| {
+            try semaphore.wait();
+        }
+
+        for (info.command_buffers.items) |command_buffer| {
+            const intel_command_buffer: *PhiCommandBuffer = @alignCast(@fieldParentPtr("interface", command_buffer));
+            _ = intel_command_buffer;
+        }
+
+        for (info.signal_semaphores.items) |semaphore| {
+            try semaphore.signal();
+        }
+    }
+    if (fence) |value| {
+        try value.signal();
+    }
+}
+
+pub fn waitIdle(interface: *Interface) VkError!void {
+    _ = interface;
+}
diff --git a/src/phi/PhiRenderPass.zig b/src/phi/PhiRenderPass.zig
new file mode 100644
index 0000000..cf56459
--- /dev/null
+++ b/src/phi/PhiRenderPass.zig
@@ -0,0 +1,40 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+const Device = base.Device;
+
+const Self = @This();
+pub const Interface = base.RenderPass;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.RenderPassCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+
+    interface.vtable = &.{
+        .destroy = destroy,
+        .getRenderAreaGranularity = getRenderAreaGranularity,
+    };
+
+    self.* = .{
+        .interface = interface,
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
+
+pub fn getRenderAreaGranularity(_: *Interface) vk.Extent2D {
+    return .{
+        .width = 1,
+        .height = 1,
+    };
+}
diff --git a/src/phi/PhiSampler.zig b/src/phi/PhiSampler.zig
new file mode 100644
index 0000000..3b22902
--- /dev/null
+++ b/src/phi/PhiSampler.zig
@@ -0,0 +1,26 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.Sampler;
+
+interface: Interface,
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.SamplerCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{ .interface = interface };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    allocator.destroy(self);
+}
diff --git a/src/phi/PhiShaderModule.zig b/src/phi/PhiShaderModule.zig
new file mode 100644
index 0000000..c91d96a
--- /dev/null
+++ b/src/phi/PhiShaderModule.zig
@@ -0,0 +1,44 @@
+const std = @import("std");
+const vk = @import("vulkan");
+const base = @import("base");
+
+const VkError = base.VkError;
+
+const Self = @This();
+pub const Interface = base.ShaderModule;
+
+interface: Interface,
+ref_count: std.atomic.Value(usize),
+
+pub fn create(device: *base.Device, allocator: std.mem.Allocator, info: *const vk.ShaderModuleCreateInfo) VkError!*Self {
+    const self = allocator.create(Self) catch return VkError.OutOfHostMemory;
+    errdefer allocator.destroy(self);
+
+    var interface = try Interface.init(device, allocator, info);
+    interface.vtable = &.{ .destroy = destroy };
+
+    self.* = .{
+        .interface = interface,
+        .ref_count = std.atomic.Value(usize).init(1),
+    };
+    return self;
+}
+
+pub fn destroy(interface: *Interface, allocator: std.mem.Allocator) void {
+    const self: *Self = @alignCast(@fieldParentPtr("interface", interface));
+    self.unref(allocator);
+}
+
+pub fn drop(self: *Self, allocator: std.mem.Allocator) void {
+    allocator.destroy(self);
+}
+
+pub fn ref(self: *Self) void {
+    _ = self.ref_count.fetchAdd(1, .monotonic);
+}
+
+pub fn unref(self: *Self, allocator: std.mem.Allocator) void {
+    if (self.ref_count.fetchSub(1, .release) == 1) {
+        self.drop(allocator);
+    }
+}
diff --git a/src/phi/lib.zig b/src/phi/lib.zig
new file mode 100644
index 0000000..b101b46
--- /dev/null
+++ b/src/phi/lib.zig
@@ -0,0 +1,83 @@
+const std = @import("std");
+const vk = @import("vulkan");
+pub const base = @import("base");
+
+pub const c = @import("intel_c");
+pub const config = base.config;
+
+pub const PhiInstance = @import("PhiInstance.zig");
+pub const PhiDevice = @import("PhiDevice.zig");
+pub const PhiPhysicalDevice = @import("PhiPhysicalDevice.zig");
+pub const PhiQueue = @import("PhiQueue.zig");
+
+pub const PhiBinarySemaphore = @import("PhiBinarySemaphore.zig");
+pub const PhiBuffer = @import("PhiBuffer.zig");
+pub const PhiBufferView = @import("PhiBufferView.zig");
+pub const PhiCommandBuffer = @import("PhiCommandBuffer.zig");
+pub const PhiCommandPool = @import("PhiCommandPool.zig");
+pub const PhiDescriptorPool = @import("PhiDescriptorPool.zig");
+pub const PhiDescriptorSet = @import("PhiDescriptorSet.zig");
+pub const PhiDescriptorSetLayout = @import("PhiDescriptorSetLayout.zig");
+pub const PhiDeviceMemory = @import("PhiDeviceMemory.zig");
+pub const PhiEvent = @import("PhiEvent.zig");
+pub const PhiFence = @import("PhiFence.zig");
+pub const PhiFramebuffer = @import("PhiFramebuffer.zig");
+pub const PhiImage = @import("PhiImage.zig");
+pub const PhiImageView = @import("PhiImageView.zig");
+pub const PhiPipeline = @import("PhiPipeline.zig");
+pub const PhiPipelineCache = @import("PhiPipelineCache.zig");
+pub const PhiPipelineLayout = @import("PhiPipelineLayout.zig");
+pub const PhiQueryPool = @import("PhiQueryPool.zig");
+pub const PhiRenderPass = @import("PhiRenderPass.zig");
+pub const PhiSampler = @import("PhiSampler.zig");
+pub const PhiShaderModule = @import("PhiShaderModule.zig");
+
+pub const Instance = PhiInstance;
+
+pub const DRIVER_NAME = "Phi";
+
+pub const PHYSICAL_DEVICE_DEFAULT_NAME = "Intel(R) Xeon Phi(TM) Coprocessor";
+
+pub const INTEL_PCI_VENDOR_ID = 0x8086;
+
+pub const VULKAN_VERSION = vk.makeApiVersion(
+    0,
+    config.phi_vulkan_version.major,
+    config.phi_vulkan_version.minor,
+    config.phi_vulkan_version.patch,
+);
+
+pub const std_options = base.std_options;
+
+comptime {
+    _ = base;
+}
+
+test {
+    std.testing.refAllDecls(PhiBinarySemaphore);
+    std.testing.refAllDecls(PhiBuffer);
+    std.testing.refAllDecls(PhiBufferView);
+    std.testing.refAllDecls(PhiCommandBuffer);
+    std.testing.refAllDecls(PhiCommandPool);
+    std.testing.refAllDecls(PhiDescriptorPool);
+    std.testing.refAllDecls(PhiDescriptorSet);
+    std.testing.refAllDecls(PhiDescriptorSetLayout);
+    std.testing.refAllDecls(PhiDevice);
+    std.testing.refAllDecls(PhiDeviceMemory);
+    std.testing.refAllDecls(PhiEvent);
+    std.testing.refAllDecls(PhiFence);
+    std.testing.refAllDecls(PhiFramebuffer);
+    std.testing.refAllDecls(PhiImage);
+    std.testing.refAllDecls(PhiImageView);
+    std.testing.refAllDecls(PhiInstance);
+    std.testing.refAllDecls(PhiPhysicalDevice);
+    std.testing.refAllDecls(PhiPipeline);
+    std.testing.refAllDecls(PhiPipelineCache);
+    std.testing.refAllDecls(PhiPipelineLayout);
+    std.testing.refAllDecls(PhiQueryPool);
+    std.testing.refAllDecls(PhiQueue);
+    std.testing.refAllDecls(PhiRenderPass);
+    std.testing.refAllDecls(PhiSampler);
+    std.testing.refAllDecls(PhiShaderModule);
+    std.testing.refAllDecls(base);
+}
diff --git a/src/phi/pci_ids.zig b/src/phi/pci_ids.zig
new file mode 100644
index 0000000..a40f957
--- /dev/null
+++ b/src/phi/pci_ids.zig
@@ -0,0 +1,29 @@
+const std = @import("std");
+
+const PciInfo = struct {
+    id: u16,
+    name: []const u8,
+};
+
+/// Not a hashmap as they need runtime allocations
+pub const map = [_]PciInfo{
+    .{ .id = 0x2250, .name = "Intel(R) Xeon Phi(TM) Coprocessor 5100 Series" },
+
+    .{ .id = 0x2251, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2252, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2253, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2254, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2255, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2256, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2257, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2258, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x2259, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x225a, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+    .{ .id = 0x225b, .name = "Intel(R) Xeon Phi(TM) Coprocessor x100 Series" },
+
+    .{ .id = 0x225c, .name = "Intel(R) Xeon Phi(TM) Coprocessor SE10/7120 Series" },
+    .{ .id = 0x225d, .name = "Intel(R) Xeon Phi(TM) Coprocessor 3120 Series" },
+    .{ .id = 0x225e, .name = "Intel(R) Xeon Phi(TM) Coprocessor 31S1" },
+
+    .{ .id = 0x2262, .name = "Intel(R) Xeon Phi(TM) Coprocessor 7220" },
+};