diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..23d47f8
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,804 @@
+const std = @import("std");
+const system = @import("system");
+
+const Dependencies = struct {
+  bc: *std.Build.Dependency,
+  common: *std.Build.Dependency,
+  squall: *std.Build.Dependency,
+  typhoon: *std.Build.Dependency,
+
+  lua: *std.Build.Dependency,
+  freetype: *std.Build.Dependency,
+  stormlib: *std.Build.Dependency,
+
+  sdl: *std.Build.Dependency,
+  glew: *std.Build.Dependency,
+};
+
+var dependencies: Dependencies = undefined;
+
+fn get_dependencies(b: *std.Build) void {
+  const d = &dependencies;
+
+  d.bc = b.dependency("bc", .{});
+  d.common = b.dependency("common", .{});
+  d.squall = b.dependency("squall", .{});
+  d.typhoon = b.dependency("typhoon", .{});
+
+  d.lua = b.dependency("lua", .{});
+  d.freetype = b.dependency("freetype", .{});
+  d.stormlib = b.dependency("stormlib", .{});
+
+  d.sdl = b.dependency("sdl", .{});
+  d.glew = b.dependency("glew", .{});
+}
+
+fn link_core_dependencies(c: *std.Build.Step.Compile) void {
+  const d = &dependencies;
+  // link bc
+  c.linkLibrary(d.bc.artifact("bc"));
+  // link common
+  c.linkLibrary(d.common.artifact("common"));
+  // link squall
+  c.linkLibrary(d.squall.artifact("storm"));
+  // link typhoon
+  c.linkLibrary(d.typhoon.artifact("tempest"));
+
+  // link stormlib
+  c.linkLibrary(d.stormlib.artifact("stormlib"));
+  // link lua
+  c.linkLibrary(d.lua.artifact("lua"));
+  // link freetype
+  c.linkLibrary(d.freetype.artifact("freetype"));
+  // // link sdl
+  // c.linkLibrary(d.sdl.artifact("SDL3"));
+  // // link glew
+  // c.linkLibrary(d.glew.artifact("glew"));
+}
+
+fn link_glsdl_dependencies(target: std.Build.ResolvedTarget, c: *std.Build.Step.Compile) void {
+  const t = &target.result;
+  const d = &dependencies;
+  // link SDL
+  c.linkLibrary(d.sdl.artifact("SDL2"));
+  // link GLEW
+  c.linkLibrary(d.glew.artifact("glew"));
+  // Make headers work in static mode
+  c.defineCMacro("GLEW_STATIC", "1");
+  // on windows, link opengl32.lib
+  if (t.os.tag == .windows) {
+    c.linkSystemLibrary("opengl32");
+  }
+}
+
+pub fn build(b: *std.Build) void {
+  const target = b.standardTargetOptions(.{});
+  const optimize = b.standardOptimizeOption(.{});
+
+  const t = &target.result;
+
+  const whoa_compiler_flags = [_][]const u8 {
+    "-std=c++11",
+
+    "-Wno-invalid-offsetof",
+
+    // Disable UBsan alignment checks
+    "-fno-sanitize=alignment",
+  };
+
+  // dependencies
+  get_dependencies(b);
+
+  const whoa_core = b.addStaticLibrary(.{
+    .name = "whoa_core",
+    .target = target,
+    .optimize = optimize
+  });
+
+  // Add system detection defines
+  system.add_defines(whoa_core);
+  // Link C++ standard library
+  whoa_core.linkLibCpp();
+  // Include "src/"
+  whoa_core.addIncludePath(b.path("src"));
+
+  link_core_dependencies(whoa_core);
+
+  // OS defines
+
+  if (t.os.tag == .windows) {
+    whoa_core.defineCMacro("NOMINMAX", "1");
+    whoa_core.defineCMacro("WIN32_LEAN_AND_MEAN", "1");
+
+    whoa_core.defineCMacro("_XM_NO_INTRINSICS_", "1");
+  }
+
+  // ****************
+  // * async module *
+  // ****************
+  const whoa_async_sources = [_][]const u8 {
+    "src/async/AsyncFile.cpp",
+    "src/async/AsyncFileRead.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_async_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // *****************
+  // * client module *
+  // *****************
+  const whoa_client_sources = [_][]const u8 {
+    "src/client/Client.cpp",
+    "src/client/ClientRealmResponseAdapter.cpp",
+    "src/client/ClientServices.cpp",
+    "src/client/CmdLine.cpp"
+  };
+
+  const whoa_client_windows_sources = [_][]const u8 {
+    "src/client/gui/win/OsGui.cpp",
+  };
+
+  const whoa_client_macos_sources = [_][]const u8 {
+    "src/client/gui/mac/OsGui.cpp",
+  };
+
+  const whoa_client_linux_sources = [_][]const u8 {
+    "src/client/gui/linux/OsGui.cpp",
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_client_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  switch (t.os.tag) {
+    .windows => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_client_windows_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+    
+    .macos => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_client_macos_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+
+    else => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_client_linux_sources,
+        .flags = &whoa_compiler_flags
+      });
+    }
+  }
+
+  // ******************
+  // * console module *
+  // ******************
+  const whoa_console_sources = [_][]const u8 {
+    "src/console/Client.cpp",
+    "src/console/Command.cpp",
+    "src/console/Console.cpp",
+    "src/console/CVar.cpp",
+    "src/console/Device.cpp",
+    "src/console/Handlers.cpp",
+    "src/console/Line.cpp",
+    "src/console/Screen.cpp",
+
+    "src/console/command/console/AppendLogToFile.cpp",
+    "src/console/command/console/BackGroundColor.cpp",
+    "src/console/command/console/BufferSize.cpp",
+    "src/console/command/console/CharSpacing.cpp",
+    "src/console/command/console/ClearConsole.cpp",
+    "src/console/command/console/CloseConsole.cpp",
+    "src/console/command/console/CurrentSettings.cpp",
+    "src/console/command/console/DefaultSettings.cpp",
+    "src/console/command/console/Font.cpp",
+    "src/console/command/console/FontColor.cpp",
+    "src/console/command/console/FontSize.cpp",
+    "src/console/command/console/Help.cpp",
+    "src/console/command/console/HighLightColor.cpp",
+    "src/console/command/console/Proportional.cpp",
+    "src/console/command/console/RepeatHandler.cpp",
+    "src/console/command/console/Ver.cpp",
+
+    "src/console/command/default/Quit.cpp",
+    "src/console/command/default/SetMap.cpp",
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_console_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // *************
+  // * db module *
+  // *************
+  const whoa_db_sources = [_][]const u8 {
+    "src/db/Db.cpp",
+
+    // TODO: replace with full list of generated records
+    "src/db/rec/AchievementRec.cpp",
+    "src/db/rec/Cfg_CategoriesRec.cpp",
+    "src/db/rec/Cfg_ConfigsRec.cpp",
+    "src/db/rec/ChrRacesRec.cpp",
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_db_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // ****************
+  // * event module *
+  // ****************
+  const whoa_event_sources = [_][]const u8 {
+    "src/event/CEvent.cpp",
+    "src/event/Context.cpp",
+    "src/event/Event.cpp",
+    "src/event/EvtContext.cpp",
+    "src/event/EvtThread.cpp",
+    "src/event/Input.cpp",
+    "src/event/Queue.cpp",
+    "src/event/Scheduler.cpp",
+    "src/event/Synthesize.cpp",
+    "src/event/Timer.cpp"
+  };
+
+  const whoa_event_windows_sources = [_][]const u8 {
+    "src/event/win/Input.cpp",
+  };
+
+  const whoa_event_macos_sources = [_][]const u8 {
+    "src/event/mac/Input.cpp",
+    "src/event/mac/Event.mm",
+  };
+
+  const whoa_event_linux_sources = [_][]const u8 {
+    "src/event/linux/Input.cpp",
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_event_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  switch (t.os.tag) {
+    .windows => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_event_windows_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+    
+    .macos => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_event_macos_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+
+    else => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_event_linux_sources,
+        .flags = &whoa_compiler_flags
+      });
+    }
+  }
+
+  // ***************
+  // * glue module *
+  // ***************
+  const whoa_glue_sources = [_][]const u8 {
+    "src/glue/CCharacterSelection.cpp",
+    "src/glue/CGlueMgr.cpp",
+    "src/glue/CRealmList.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_glue_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // *************
+  // * gx module *
+  // *************
+  const whoa_gx_sources = [_][]const u8 {
+    "src/gx/Blit.cpp",
+    "src/gx/Buffer.cpp",
+    "src/gx/Camera.cpp",
+    "src/gx/CCamera.cpp",
+    "src/gx/CGVideoOptions.cpp",
+    "src/gx/CGxDevice.cpp",
+    "src/gx/CGxMatrixStack.cpp",
+    "src/gx/CGxStateBom.cpp",
+    "src/gx/Coordinate.cpp",
+    "src/gx/Device.cpp",
+    "src/gx/Draw.cpp",
+    "src/gx/Font.cpp",
+    "src/gx/FontInternal.cpp",
+    "src/gx/Gx.cpp",
+    "src/gx/RenderState.cpp",
+    "src/gx/Screen.cpp",
+    "src/gx/Shader.cpp",
+    "src/gx/Texture.cpp",
+    "src/gx/Transform.cpp",
+    "src/gx/Window.cpp",
+
+    "src/gx/buffer/CGxPool.cpp",
+
+    "src/gx/font/CGxFont.cpp",
+    "src/gx/font/CGxString.cpp",
+    "src/gx/font/CGxStringBatch.cpp",
+    "src/gx/font/FaceData.cpp",
+    "src/gx/font/FontFace.cpp",
+    "src/gx/font/FreeType.cpp",
+    "src/gx/font/FreeTypeInternal.cpp",
+    "src/gx/font/Wrap.cpp",
+
+    "src/gx/shader/CGxShader.cpp",
+    "src/gx/shader/CShaderEffect.cpp",
+    "src/gx/shader/CShaderEffectManager.cpp",
+
+    "src/gx/texture/CBLPFile.cpp", 
+    "src/gx/texture/CGxTex.cpp", 
+    "src/gx/texture/CTexture.cpp"
+  };
+
+  const whoa_gx_d3d_sources = [_][]const u8 {
+    "src/gx/d3d/CGxDeviceD3d.cpp"
+  };
+
+  const whoa_gx_gll_sources = [_][]const u8 {
+    "src/gx/gll/CGxDeviceGLL.cpp",
+    "src/gx/gll/GL.cpp",
+    "src/gx/gll/GLAbstractWindow.cpp",
+    "src/gx/gll/GLBuffer.cpp",
+    "src/gx/gll/GLCommand.cpp",
+    "src/gx/gll/GLContext.mm",
+    "src/gx/gll/GLDevice.cpp",
+    "src/gx/gll/GLFramebuffer.cpp",
+    "src/gx/gll/GLGLSLProgram.cpp",
+    "src/gx/gll/GLLayerView.mm",
+    "src/gx/gll/GLMipmap.cpp",
+    "src/gx/gll/GLObject.cpp",
+    "src/gx/gll/GLPixelShader.cpp",
+    "src/gx/gll/GLShader.cpp",
+    "src/gx/gll/GLTexture.cpp",
+    "src/gx/gll/GLTypes.cpp",
+    "src/gx/gll/GLUtil.cpp",
+    "src/gx/gll/GLVertexArray.cpp",
+    "src/gx/gll/GLVertexShader.cpp",
+    "src/gx/gll/GLWindow.mm",
+    "src/gx/gll/GLWorker.cpp"
+  };
+
+  const whoa_gx_glsdl_sources = [_][]const u8 {
+    "src/gx/glsdl/CGxDeviceGLSDL.cpp",
+    "src/gx/glsdl/GL.cpp",
+    "src/gx/glsdl/GLBuffer.cpp",
+    "src/gx/glsdl/GLFramebuffer.cpp",
+    "src/gx/glsdl/GLGLSLProgram.cpp",
+    "src/gx/glsdl/GLMipmap.cpp",
+    "src/gx/glsdl/GLObject.cpp",
+    "src/gx/glsdl/GLPixelShader.cpp",
+    "src/gx/glsdl/GLSDLContext.cpp",
+    "src/gx/glsdl/GLSDLDevice.cpp",
+    "src/gx/glsdl/GLSDLWindow.cpp",
+    "src/gx/glsdl/GLShader.cpp",
+    "src/gx/glsdl/GLTexture.cpp",
+    "src/gx/glsdl/GLTypes.cpp",
+    "src/gx/glsdl/GLUtil.cpp",
+    "src/gx/glsdl/GLVertexArray.cpp",
+    "src/gx/glsdl/GLVertexShader.cpp"
+  };
+
+  var use_gll = false;
+  var use_glsdl = false;
+  var use_d3d = false;
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_gx_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  switch (t.os.tag) {
+    .windows => {
+      use_d3d = true;
+      use_glsdl = true;
+    },
+
+    .macos => {
+      use_gll = true;
+    },
+
+    else => {
+      use_glsdl = true;
+    }
+  }
+
+  if (use_d3d) {
+    whoa_core.addCSourceFiles(.{
+      .files = &whoa_gx_d3d_sources,
+      .flags = &whoa_compiler_flags
+    });
+    whoa_core.linkSystemLibrary("d3d9");
+  }
+
+  if (use_gll) {
+    whoa_core.addCSourceFiles(.{
+      .files = &whoa_gx_gll_sources,
+      .flags = &whoa_compiler_flags
+    });
+    whoa_core.linkFramework("AppKit");
+    whoa_core.linkFramework("OpenGL");
+  }
+
+  if (use_glsdl) {
+    whoa_core.addCSourceFiles(.{
+      .files = &whoa_gx_glsdl_sources,
+      .flags = &whoa_compiler_flags
+    });
+
+    link_glsdl_dependencies(target, whoa_core);
+  }
+
+  // ***************
+  // * math module *
+  const whoa_math_sources = [_][]const u8 {
+    "src/math/Types.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_math_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // ****************
+  // * model module *
+  // ****************
+  const whoa_model_sources = [_][]const u8 {
+    "src/model/CM2Cache.cpp",
+    "src/model/CM2Light.cpp",
+    "src/model/CM2Lighting.cpp",
+    "src/model/CM2Model.cpp",
+    "src/model/CM2Scene.cpp",
+    "src/model/CM2SceneRender.cpp",
+    "src/model/CM2Shared.cpp",
+    "src/model/M2Init.cpp",
+    "src/model/M2Internal.cpp",
+    "src/model/M2Sort.cpp",
+    "src/model/Model2.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_model_sources,
+    .flags = &whoa_compiler_flags
+  });
+  
+  // **************
+  // * net module *
+  // **************
+  const whoa_net_sources = [_][]const u8 {
+    "src/net/Poll.cpp",
+
+    "src/net/connection/ClientConnection.cpp",
+    "src/net/connection/NetClient.cpp",
+    "src/net/connection/RealmConnection.cpp",
+    "src/net/connection/WowConnection.cpp",
+    "src/net/connection/WowConnectionNet.cpp",
+
+    "src/net/grunt/ClientLink.cpp",
+    "src/net/grunt/Grunt.cpp",
+    "src/net/grunt/Timer.cpp",
+
+    "src/net/login/GruntLogin.cpp",
+    "src/net/login/Login.cpp",
+    "src/net/login/LoginResponse.cpp",
+
+    "src/net/srp/SRP6_Client.cpp",
+    "src/net/srp/SRP6_Random.cpp",
+  };
+
+  const whoa_net_winsock_sources = [_][]const u8 {
+    "src/net/connection/winsock/WowConnectionNet.cpp"
+  };
+
+  const whoa_net_bsd_sources = [_][]const u8 {
+    "src/net/connection/bsd/WowConnectionNet.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_net_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  switch (t.os.tag) {
+    .windows => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_net_winsock_sources,
+        .flags = &whoa_compiler_flags
+      });
+      whoa_core.linkSystemLibrary("wsock32");
+      whoa_core.linkSystemLibrary("ws2_32");
+    },
+
+    else => {
+      whoa_core.addCSourceFiles(.{
+        .files = &whoa_net_bsd_sources,
+        .flags = &whoa_compiler_flags
+      });
+    }
+  }
+
+  // // *************
+  // // * os module *
+  // // *************
+  // const whoa_os = b.addStaticLibrary(.{
+  //   .name = "os",
+  //   .target = target,
+  //   .optimize = optimize
+  // });
+  // // Add system detection defines
+  // system.add_defines(whoa_os);
+  // // Link C++ standard library
+  // whoa_os.linkLibCpp();
+  // // Include "src/"
+  // whoa_os.addIncludePath(b.path("src"));
+
+  // ****************
+  // * sound module *
+  // ****************
+  const whoa_sound_sources = [_][]const u8 {
+    "src/sound/SI2.cpp",
+    "src/sound/SI2Cvars.cpp",
+    "src/sound/SI2Log.cpp",
+    "src/sound/SI2Script.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_sound_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // *************
+  // * ui module *
+  // *************
+  const whoa_ui_sources = [_][]const u8 {
+    "src/ui/CBackdropGenerator.cpp",
+    "src/ui/CFramePoint.cpp",
+    "src/ui/CFrameStrata.cpp",
+    "src/ui/CLayoutFrame.cpp",
+    "src/ui/CRenderBatch.cpp",
+    "src/ui/CScriptObject.cpp",
+    "src/ui/CScriptObjectScript.cpp",
+    "src/ui/CScriptRegion.cpp",
+    "src/ui/CScriptRegionScript.cpp",
+    "src/ui/CSimpleButton.cpp",
+    "src/ui/CSimpleButtonScript.cpp",
+    "src/ui/CSimpleCheckbox.cpp",
+    "src/ui/CSimpleCheckboxScript.cpp",
+    "src/ui/CSimpleEditBox.cpp",
+    "src/ui/CSimpleEditBoxScript.cpp",
+    "src/ui/CSimpleFont.cpp",
+    "src/ui/CSimpleFontable.cpp",
+    "src/ui/CSimpleFontScript.cpp",
+    "src/ui/CSimpleFontString.cpp",
+    "src/ui/CSimpleFontStringAttributes.cpp",
+    "src/ui/CSimpleFontStringScript.cpp",
+    "src/ui/CSimpleFrame.cpp",
+    "src/ui/CSimpleFrameScript.cpp",
+    "src/ui/CSimpleHTML.cpp",
+    "src/ui/CSimpleHTMLScript.cpp",
+    "src/ui/CSimpleHyperlinkedFrame.cpp",
+    "src/ui/CSimpleModel.cpp",
+    "src/ui/CSimpleModelFFX.cpp",
+    "src/ui/CSimpleModelFFXScript.cpp",
+    "src/ui/CSimpleModelScript.cpp",
+    "src/ui/CSimpleRegion.cpp",
+    "src/ui/CSimpleRender.cpp",
+    "src/ui/CSimpleScrollFrame.cpp",
+    "src/ui/CSimpleScrollFrameScript.cpp",
+    "src/ui/CSimpleSlider.cpp",
+    "src/ui/CSimpleSliderScript.cpp",
+    "src/ui/CSimpleTexture.cpp",
+    "src/ui/CSimpleTextureScript.cpp",
+    "src/ui/CSimpleTop.cpp",
+    "src/ui/FrameScript_Object.cpp",
+    "src/ui/FrameScript.cpp",
+    "src/ui/FrameXML.cpp",
+    "src/ui/Interface.cpp",
+    "src/ui/LoadXML.cpp",
+    "src/ui/LuaExtraFuncs.cpp",
+    "src/ui/LuaMemory.cpp",
+    "src/ui/ScriptFunctions.cpp",
+    "src/ui/ScriptFunctionsCharCreate.cpp",
+    "src/ui/ScriptFunctionsCharSelect.cpp",
+    "src/ui/ScriptFunctionsGlueScriptEvents.cpp",
+    "src/ui/ScriptFunctionsRealmList.cpp",
+    "src/ui/ScriptFunctionsShared.cpp",
+    "src/ui/ScriptFunctionsSimpleFrame.cpp",
+    "src/ui/ScriptFunctionsSystem.cpp",
+    "src/ui/Util.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_ui_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // ***************
+  // * util module *
+  // ***************
+  const whoa_util_sources = [_][]const u8 {
+    "src/util/CStatus.cpp",
+    "src/util/Filesystem.cpp",
+    "src/util/HMAC.cpp",
+    "src/util/SFile.cpp",
+    "src/util/StringTo.cpp",
+    "src/util/SysMessage.cpp"
+  };
+
+  const whoa_util_macos_sources = [_][]const u8 {
+    "src/util/Autorelease.mm"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_util_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  if (t.os.tag == .macos) {
+    whoa_core.addCSourceFiles(.{
+      .files = &whoa_util_macos_sources,
+      .flags = &whoa_compiler_flags
+    });
+  }
+
+  // ****************
+  // * world module *
+  // ****************
+  const whoa_world_sources = [_][]const u8 {
+    "src/world/CWorld.cpp"
+  };
+
+  whoa_core.addCSourceFiles(.{
+    .files = &whoa_world_sources,
+    .flags = &whoa_compiler_flags
+  });
+
+  // **************
+  // * app module *
+  // **************
+  const whoa_app = b.addExecutable(.{
+    .name = "Whoa",
+    .target = target,
+    .optimize = optimize
+  });
+  // Add system detection defines
+  system.add_defines(whoa_app);
+  // Link C++ standard library
+  whoa_app.linkLibCpp();
+  // Include "src/"
+  whoa_app.addIncludePath(b.path("src"));
+
+  const whoa_app_windows_sources = [_][]const u8 {
+    "src/app/win/Whoa.cpp",
+  };
+
+  const whoa_app_macos_sources = [_][]const u8 {
+    "src/app/macos/MacClient.mm",
+    "src/app/macos/MainApp.mm",
+    "src/app/macos/Whoa.mm",
+    "src/app/macos/View.mm",
+    "src/app/macos/WindowsCallbacks.mm",
+    "src/app/macos/WoWApplication.mm",
+  };
+
+  const whoa_app_linux_sources = [_][]const u8 {
+    "src/app/linux/Whoa.cpp",
+  };
+
+  switch (t.os.tag) {
+    .windows => {
+      whoa_app.addCSourceFiles(.{
+        .files = &whoa_app_windows_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+    
+    .macos => {
+      whoa_app.addCSourceFiles(.{
+        .files = &whoa_app_macos_sources,
+        .flags = &whoa_compiler_flags
+      });
+    },
+
+    else => {
+      whoa_app.addCSourceFiles(.{
+        .files = &whoa_app_linux_sources,
+        .flags = &whoa_compiler_flags
+      });
+    }
+  }
+
+  link_core_dependencies(whoa_app);
+
+  whoa_app.linkLibrary(whoa_core);
+
+  // // link different modules together
+  
+  // // whoa_async.linkLibrary(whoa_event);
+  // // whoa_async.linkLibrary(whoa_util);
+
+  // whoa_client.linkLibrary(whoa_async);
+  // // whoa_client.linkLibrary(whoa_console);
+  // // whoa_client.linkLibrary(whoa_db);
+  // // whoa_client.linkLibrary(whoa_event);
+  // // whoa_client.linkLibrary(whoa_gx);
+  // // whoa_client.linkLibrary(whoa_model);
+  // // whoa_client.linkLibrary(whoa_net);
+  // // whoa_client.linkLibrary(whoa_ui);
+  // // whoa_client.linkLibrary(whoa_util);
+  // // whoa_client.linkLibrary(whoa_world);
+
+  // whoa_console.linkLibrary(whoa_client);
+  // whoa_console.linkLibrary(whoa_gx);
+
+  // // whoa_event.linkLibrary(whoa_client);
+  // // whoa_event.linkLibrary(whoa_gx);
+
+  // whoa_glue.linkLibrary(whoa_client);
+  // whoa_glue.linkLibrary(whoa_console);
+  // whoa_glue.linkLibrary(whoa_db);
+  // whoa_glue.linkLibrary(whoa_event);
+  // whoa_glue.linkLibrary(whoa_gx);
+  // whoa_glue.linkLibrary(whoa_model);
+  // whoa_glue.linkLibrary(whoa_net);
+  // whoa_glue.linkLibrary(whoa_sound);
+  // whoa_glue.linkLibrary(whoa_ui);
+  // whoa_glue.linkLibrary(whoa_util);
+
+  // // whoa_gx.linkLibrary(whoa_event);
+  // whoa_gx.linkLibrary(whoa_math);
+  // whoa_gx.linkLibrary(whoa_model);
+  // whoa_gx.linkLibrary(whoa_ui);
+  // whoa_gx.linkLibrary(whoa_util);
+
+  // whoa_model.linkLibrary(whoa_async);
+  // // whoa_model.linkLibrary(whoa_gx);
+  // whoa_model.linkLibrary(whoa_math);
+  // whoa_model.linkLibrary(whoa_util);
+
+  // whoa_net.linkLibrary(whoa_client);
+  // whoa_net.linkLibrary(whoa_event);
+
+  // whoa_sound.linkLibrary(whoa_ui);
+  // whoa_sound.linkLibrary(whoa_util);
+
+  // whoa_ui.linkLibrary(whoa_client);
+  // whoa_ui.linkLibrary(whoa_console);
+  // whoa_ui.linkLibrary(whoa_db);
+  // whoa_ui.linkLibrary(whoa_event);
+  // whoa_ui.linkLibrary(whoa_glue);
+  // // whoa_ui.linkLibrary(whoa_gx);
+  // whoa_ui.linkLibrary(whoa_math);
+  // whoa_ui.linkLibrary(whoa_model);
+  // whoa_ui.linkLibrary(whoa_net);
+  // whoa_ui.linkLibrary(whoa_util);
+
+  // whoa_world.linkLibrary(whoa_gx);
+  // whoa_world.linkLibrary(whoa_model);
+
+  // whoa_app.linkLibrary(whoa_client);
+  // // whoa_app.linkLibrary(whoa_event);
+  // // whoa_app.linkLibrary(whoa_gx);
+  // // whoa_app.linkLibrary(whoa_net);
+  // // whoa_app.linkLibrary(whoa_util);
+
+  b.installArtifact(whoa_app);
+}
\ No newline at end of file
diff --git a/build.zig.zon b/build.zig.zon
new file mode 100644
index 0000000..788aa4b
--- /dev/null
+++ b/build.zig.zon
@@ -0,0 +1,42 @@
+.{ .name = "whoa", .version = "3.3.5", .dependencies = .{
+    .bc = .{
+        .url = "https://github.com/thunderbrewhq/bc/archive/refs/heads/master.zip",
+        .hash = "1220ef571af35d366e093fb7ad65b0ac65dcde291d5bbbd1d2cf42b0b1d59612fa0a",
+    },
+    .common = .{
+            .url = "https://github.com/thunderbrewhq/common/archive/refs/heads/master.zip",
+            .hash = "122083b9b4614e7bc8778f2202d46fa96da7594529b3088708243103700dd3e6f9f2",
+        },
+    .squall = .{
+        .url = "https://github.com/thunderbrewhq/squall/archive/refs/heads/master.zip",
+        .hash = "1220cbe372b510d9f0ecfe42d6e2a819c1baf4e93252911e673d8ce28db256b7fbaf",
+    },
+    .typhoon = .{
+        .url = "https://github.com/thunderbrewhq/typhoon/archive/refs/heads/master.zip",
+        .hash = "1220b606235180891fc4bfaa709050408523b024c5ce8d237eb204e23083eaf4f3bc",
+    },
+    .system = .{
+        .url = "https://github.com/thunderbrewhq/system/archive/refs/heads/master.zip",
+        .hash = "1220d6a6e4e2f836c1c22eb128e6c74c773ea191bfbaac02601dcb5238c2b0874182",
+    },
+    .glew = .{
+        .url = "https://github.com/thunderbrewhq/glew/archive/refs/heads/master.zip",
+        .hash = "12207a20f7a36c864cd82aa0272c18713f1b4318981d821a897b9491432e759eb6a8",
+    },
+    .freetype = .{
+        .url = "https://github.com/thunderbrewhq/freetype/archive/refs/heads/master.zip",
+        .hash = "12206bcb472a69fc610e5d39cbda1ceaba897205daca4b287b6fefeddeb72817d266",
+    },
+    .sdl = .{
+        .url = "https://github.com/thunderbrewhq/sdl/archive/refs/heads/master.zip",
+        .hash = "12206b66f2f21d3fa780a0e6c2623c128f965d84de3daa178338e132e0f00d25123a",
+    },
+    .lua = .{
+        .url = "https://github.com/thunderbrewhq/lua/archive/refs/heads/master.zip",
+        .hash = "12200e9b8b5d49d98a833cf1b34c19ea872c880bf1d8777b07557b2eac1b8a4cf7fe",
+    },
+    .stormlib = .{
+        .url = "https://github.com/thunderbrewhq/stormlib/archive/refs/heads/master.zip",
+        .hash = "1220a383fa2c263cacc9841960af3a87c4c8afb670468894c77b5c05b4b2068af9e4",
+    },
+}, .paths = .{ "src", "build.zig", "build.zig.zon", "LICENSE", "README.md" } }
diff --git a/src/gx/d3d/CGxDeviceD3d.cpp b/src/gx/d3d/CGxDeviceD3d.cpp
index 58b103e..cfb655e 100644
--- a/src/gx/d3d/CGxDeviceD3d.cpp
+++ b/src/gx/d3d/CGxDeviceD3d.cpp
@@ -538,6 +538,8 @@ void CGxDeviceD3d::DeviceWM(EGxWM wm, uintptr_t param1, uintptr_t param2) {
 
         break;
     }
+    default: {
+    }
     }
 }
 
@@ -727,6 +729,9 @@ void CGxDeviceD3d::DsSet(EDeviceState state, uint32_t val) {
     case Ds_ZFunc: {
         this->m_d3dDevice->SetRenderState(D3DRS_ZFUNC, val);
         break;
+    }
+    default: {
+
     }
     }
 
@@ -1915,6 +1920,7 @@ UNLOCK:
 }
 
 void CGxDeviceD3d::IXformSetProjection(const C44Matrix& matrix) {
+#if defined(_MSC_VER)
     DirectX::XMMATRIX projNative;
     memcpy(&projNative, &matrix, sizeof(projNative));
 
@@ -1948,6 +1954,41 @@ void CGxDeviceD3d::IXformSetProjection(const C44Matrix& matrix) {
 
     this->m_xforms[GxXform_Projection].m_dirty = 1;
     memcpy(&this->m_projNative, &projNative, sizeof(this->m_projNative));
+#else
+    C44Matrix projNative;
+    memcpy(&projNative, &matrix, sizeof(projNative));
+
+    if (NotEqual(projNative.c3, 1.0f, WHOA_EPSILON_1) && NotEqual(projNative.c3, 0.0f, WHOA_EPSILON_1)) {
+        projNative = projNative * (1.0f / projNative.c3);
+    }
+
+    if (projNative.d3 == 0.0f) {
+        auto v5 = -(projNative.d2 / (projNative.c2 + 1.0f));
+        auto v6 = -(projNative.d2 / (projNative.c2 - 1.0f));
+        projNative.c2 = v6 / (v6 - v5);
+        projNative.d2 = v6 * v5 / (v5 - v6);
+    } else {
+        auto v8 = 1.0f / projNative.c2;
+        auto v9 = (-1.0f - projNative.d2) * v8;
+        auto v10 = v8 * (1.0f - projNative.d2);
+        projNative.c2 = 1.0f / (v10 - v9);
+        projNative.d2 = v9 / (v9 - v10);
+    }
+
+    if (!this->MasterEnable(GxMasterEnable_NormalProjection) && projNative.d3 != 1.0f) {
+        C44Matrix shrink = {
+            0.2f, 0.0f, 0.0f, 0.0f,
+            0.0f, 0.2f, 0.0f, 0.0f,
+            0.0f, 0.0f, 0.2f, 0.0f,
+            0.0f, 0.0f, 0.0f, 1.0f
+        };
+
+        projNative = projNative * shrink;
+    }
+
+    this->m_xforms[GxXform_Projection].m_dirty = 1;
+    memcpy(&this->m_projNative, &projNative, sizeof(this->m_projNative));
+#endif
 }
 
 void CGxDeviceD3d::IXformSetViewport() {
diff --git a/src/gx/glsdl/GLSDLContext.hpp b/src/gx/glsdl/GLSDLContext.hpp
index 8fd074a..10727f6 100644
--- a/src/gx/glsdl/GLSDLContext.hpp
+++ b/src/gx/glsdl/GLSDLContext.hpp
@@ -1,6 +1,6 @@
 #ifndef GX_GL_SDL_GL_SDL_CONTEXT_HPP
 
-#include <SDL3/SDL.h>
+#include <SDL2/SDL.h>
 
 #include "gx/glsdl/GLSDLWindow.hpp"
 #include "gx/glsdl/GLTypes.hpp"
diff --git a/src/gx/glsdl/GLSDLWindow.cpp b/src/gx/glsdl/GLSDLWindow.cpp
index 492eccd..1b37e75 100644
--- a/src/gx/glsdl/GLSDLWindow.cpp
+++ b/src/gx/glsdl/GLSDLWindow.cpp
@@ -198,6 +198,8 @@ void GLSDLWindow::Create(const char* title, const GLSDLWindowRect& rect, GLTextu
 
     this->m_sdlWindow = SDL_CreateWindow(
         title,
+        0,
+        0,
         static_cast<int>(rect.size.width), static_cast<int>(rect.size.height),
         SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE
     );
@@ -229,17 +231,15 @@ GLSDLWindowRect GLSDLWindow::GetRect() {
 
     int origin_x = 0;
     int origin_y = 0;
-    if (SDL_GetWindowPosition(this->m_sdlWindow, &origin_x, &origin_y) == 0) {
-        rect.origin.x = static_cast<int32_t>(origin_x);
-        rect.origin.y = static_cast<int32_t>(origin_y);
-    }
+    SDL_GetWindowPosition(this->m_sdlWindow, &origin_x, &origin_y);
+    rect.origin.x = static_cast<int32_t>(origin_x);
+    rect.origin.y = static_cast<int32_t>(origin_y);
 
     int width  = 0;
     int height = 0;
-    if (SDL_GetWindowSize(this->m_sdlWindow, &width, &height) == 0) {
-        rect.size.width  = static_cast<int32_t>(width);
-        rect.size.height = static_cast<int32_t>(height);
-    }
+    SDL_GetWindowSize(this->m_sdlWindow, &width, &height);
+    rect.size.width  = static_cast<int32_t>(width);
+    rect.size.height = static_cast<int32_t>(height);
 
     return rect;
 }
@@ -251,10 +251,9 @@ GLSDLWindowRect GLSDLWindow::GetBackingRect() {
     // Query backing width/height
     int width  = 0;
     int height = 0;
-    if (SDL_GetWindowSizeInPixels(this->m_sdlWindow, &width, &height) == 0) {
-        rect.size.width  = static_cast<int32_t>(width);
-        rect.size.height = static_cast<int32_t>(height);
-    }
+    SDL_GetWindowSizeInPixels(this->m_sdlWindow, &width, &height);
+    rect.size.width  = static_cast<int32_t>(width);
+    rect.size.height = static_cast<int32_t>(height);
 
     return rect;
 }
@@ -263,8 +262,8 @@ void GLSDLWindow::Resize(const GLSDLWindowRect& rect) {
     auto current = this->GetBackingRect();
 
     if (current.size.width != rect.size.width || current.size.height != rect.size.width) {
-        auto status = SDL_SetWindowSize(this->m_sdlWindow, rect.size.width, rect.size.height);
-        BLIZZARD_ASSERT(status == 0);
+        SDL_SetWindowSize(this->m_sdlWindow, rect.size.width, rect.size.height);
+        // BLIZZARD_ASSERT(status == 0);
     }
 }
 
@@ -278,24 +277,24 @@ int32_t GLSDLWindow::GetHeight() {
 
 void GLSDLWindow::DispatchSDLEvent(const SDL_Event& event) {
     switch (event.type) {
-    case SDL_EVENT_KEY_DOWN:
-    case SDL_EVENT_KEY_UP:
+    case SDL_KEYDOWN:
+    case SDL_KEYUP:
         this->DispatchSDLKeyboardEvent(event);
         break;
-    case SDL_EVENT_MOUSE_BUTTON_DOWN:
-    case SDL_EVENT_MOUSE_BUTTON_UP:
+    case SDL_MOUSEBUTTONDOWN:
+    case SDL_MOUSEBUTTONUP:
         this->DispatchSDLMouseButtonEvent(event);
         break;
-    case SDL_EVENT_MOUSE_MOTION:
+    case SDL_MOUSEMOTION:
         this->DispatchSDLMouseMotionEvent(event);
         break;
-    case SDL_EVENT_TEXT_INPUT:
+    case SDL_TEXTINPUT:
         this->DispatchSDLTextInputEvent(event);
         break;
-    case SDL_EVENT_WINDOW_RESIZED:
+    case SDL_WINDOWEVENT_RESIZED:
         this->DispatchSDLWindowResizedEvent(event);
         break;
-    case SDL_EVENT_QUIT:
+    case SDL_QUIT:
         EventPostClose();
         break;
     default:
@@ -305,7 +304,7 @@ void GLSDLWindow::DispatchSDLEvent(const SDL_Event& event) {
 
 void GLSDLWindow::DispatchSDLKeyboardEvent(const SDL_Event& event) {
     // Is this an up or down keypress?
-    OSINPUT inputclass = event.type == SDL_EVENT_KEY_UP ? OS_INPUT_KEY_UP : OS_INPUT_KEY_DOWN;
+    OSINPUT inputclass = event.type == SDL_KEYUP ? OS_INPUT_KEY_UP : OS_INPUT_KEY_DOWN;
 
     // What key does this SDL scancode correspond to?
     auto lookup = s_keyConversion.find(event.key.keysym.scancode);
@@ -329,7 +328,7 @@ void GLSDLWindow::DispatchSDLMouseMotionEvent(const SDL_Event& event) {
 
 void GLSDLWindow::DispatchSDLMouseButtonEvent(const SDL_Event& event) {
     // Is this an up or down mouse click?
-    OSINPUT inputclass = event.type == SDL_EVENT_MOUSE_BUTTON_UP ? OS_INPUT_MOUSE_UP : OS_INPUT_MOUSE_DOWN;
+    OSINPUT inputclass = event.type == SDL_MOUSEBUTTONUP ? OS_INPUT_MOUSE_UP : OS_INPUT_MOUSE_DOWN;
 
     // XY click coordinates
     auto x = static_cast<int32_t>(event.button.x);
diff --git a/src/gx/glsdl/GLSDLWindow.hpp b/src/gx/glsdl/GLSDLWindow.hpp
index 915d34a..d1303ca 100644
--- a/src/gx/glsdl/GLSDLWindow.hpp
+++ b/src/gx/glsdl/GLSDLWindow.hpp
@@ -2,7 +2,7 @@
 #define GX_GL_SDL_GL_SDL_WINDOW_HPP
 
 #include <cstdint>
-#include <SDL3/SDL.h>
+#include <SDL2/SDL.h>
 
 #include "gx/glsdl/GLTypes.hpp"
 
diff --git a/src/sound/SI2.cpp b/src/sound/SI2.cpp
index 389d855..6f5176c 100644
--- a/src/sound/SI2.cpp
+++ b/src/sound/SI2.cpp
@@ -3,6 +3,8 @@
 #include "console/CVar.hpp"
 #include <storm/Memory.hpp>
 
+#if defined(WHOA_BUILD_SOUND_FMOD)
+
 FMOD::System* SI2::sm_pGameSystem = nullptr;
 FMOD::System* SI2::sm_pChatSystem = nullptr;
 
@@ -18,6 +20,8 @@ void F_CALL FMOD_Free(void* ptr, FMOD_MEMORY_TYPE type, const char* sourcestr) {
     SMemFree(ptr, sourcestr, 0, 0);
 }
 
+#endif
+
 void SI2::RegisterScriptFunctions() {
     for (int32_t i = 0; i < s_NumScriptFunctions; i++) {
         auto item = &s_ScriptFunctions[i];
@@ -32,6 +36,7 @@ int32_t SI2::Init(int32_t flag) {
     SI2_LOG("=> Setting up Game Sound:");
     SI2_LOG(" - SESound Engine Init");
 
+#if defined(WHOA_BUILD_SOUND_FMOD)
     SI2_LOG(" - FMOD Memory Init");
     FMOD::Memory_Initialize(nullptr, 0, &FMOD_Alloc, &FMOD_ReAlloc, &FMOD_Free);
     // sub_877440(&off_B1D5E4);
@@ -59,7 +64,7 @@ int32_t SI2::Init(int32_t flag) {
     }
 
     sm_pGameSystem->setOutput(FMOD_OUTPUTTYPE_AUTODETECT);
-
+#endif
 LABEL_9:
 
     return 0;
diff --git a/src/sound/SI2.hpp b/src/sound/SI2.hpp
index 7b434d5..edc0aff 100644
--- a/src/sound/SI2.hpp
+++ b/src/sound/SI2.hpp
@@ -5,12 +5,16 @@
 #include <storm/Log.hpp>
 #include <cstdint>
 #include <cstdarg>
+
+#if defined(WHOA_BUILD_SOUND_FMOD)
+
 #include <fmod.hpp>
 #include <fmod_errors.h>
 
+#endif
 
 #define SI2_ERR(errcode, format, ...) SI2::Log_Write(__LINE__, __FILE__, errcode, format, ##__VA_ARGS__)
-#define SI2_LOG(format, ...) SI2::Log_Write(__LINE__, __FILE__, FMOD_OK, format, ##__VA_ARGS__)
+#define SI2_LOG(format, ...) SI2::Log_Write(__LINE__, __FILE__, 0, format, ##__VA_ARGS__)
 
 class SI2 {
     public:
@@ -19,14 +23,15 @@ class SI2 {
         static size_t s_NumScriptFunctions;
         static uint32_t sm_logFlags;
         static HSLOG sm_log;
+#if defined(WHOA_BUILD_SOUND_FMOD)
         static FMOD::System* sm_pGameSystem;
         static FMOD::System* sm_pChatSystem;
-
+#endif
         // Static functions
         static void RegisterScriptFunctions();
         static int32_t Log_Init();
         static void Log_Write(const char* format, ...);
-        static void Log_Write(uint32_t line, const char* filename, FMOD_RESULT errcode, const char* format, ...);
+        static void Log_Write(uint32_t line, const char* filename, int32_t errcode, const char* format, ...);
         static void RegisterCVars();
         static int32_t Init(int32_t flag);
         static void StartGlueMusic(const char* filename);
diff --git a/src/sound/SI2Log.cpp b/src/sound/SI2Log.cpp
index e73e07d..64ed766 100644
--- a/src/sound/SI2Log.cpp
+++ b/src/sound/SI2Log.cpp
@@ -25,10 +25,11 @@ void SI2::Log_Write(const char* format, ...) {
         va_end(va);
     }
 
-    Log_Write(__LINE__, __FILE__, FMOD_OK, output);
+    // Log_Write(__LINE__, __FILE__, FMOD_OK, output);
+    Log_Write(__LINE__, __FILE__, 0, output);
 }
 
-void SI2::Log_Write(uint32_t line, const char* filename, FMOD_RESULT errcode, const char* format, ...) {
+void SI2::Log_Write(uint32_t line, const char* filename, int32_t errcode, const char* format, ...) {
     static uint32_t s_nNumErrors = 0;
 
     if (s_nNumErrors > 200) {
@@ -52,6 +53,7 @@ void SI2::Log_Write(uint32_t line, const char* filename, FMOD_RESULT errcode, co
         va_end(va);
     }
 
+#if defined(WHOA_BUILD_SOUND_FMOD)
     if (errcode == FMOD_OK) {
         SLogWrite(sm_log, output);
         SLogFlush(sm_log);
@@ -62,10 +64,13 @@ void SI2::Log_Write(uint32_t line, const char* filename, FMOD_RESULT errcode, co
     }
 
     SLogWrite(sm_log, " -######## FMOD ERROR! (err %d) %s", errcode, FMOD_ErrorString(errcode));
+#endif
+
     if (format[0]) {
         SLogWrite(sm_log, output);
     }
     SLogWrite(sm_log, "%s(%d)", filename, line);
     SLogFlush(sm_log);
     s_nNumErrors++;
+
 }
diff --git a/src/ui/CSimpleTop.hpp b/src/ui/CSimpleTop.hpp
index 6368742..3cdab38 100644
--- a/src/ui/CSimpleTop.hpp
+++ b/src/ui/CSimpleTop.hpp
@@ -56,7 +56,7 @@ class CSimpleTop : public CLayoutFrame {
         frame_layout m_layout;
         CSimpleSortedArray<FRAMEPRIORITY*> m_eventqueue[NUM_FRAME_STRATA][NUM_SIMPLE_EVENTS];
         int32_t m_checkFocus = 1;
-        EVENT_DATA_MOUSE m_mousePosition;
+        EVENT_DATA_MOUSE m_mousePosition = {};
         int32_t (*m_mouseButtonCallback)(CMouseEvent*) = nullptr;
         int32_t (*m_mousePositionCallback)(CMouseEvent*) = nullptr;
         int32_t (*m_displaySizeCallback)(const CSizeEvent&) = nullptr;