ImGui demo window

build.zig

@@ -11,12 +11,15 @@ pub fn build(b: *std.Build) void {
     });
     const vkmod = vk.module("vulkan-zig");
 
+    const cimgui = b.dependency("cimgui", .{});
+
     const exe = b.addExecutable(.{
         .name = "scratchzig",
         .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
+    exe.root_module.addImport("cimgui", cimgui.module("cimgui"));
 
     const shaders = vkgen.ShaderCompileStep.create(
         b,