diff --git a/src/ptk.c b/src/ptk.c
index ff4b498..368199f 100644
--- a/src/ptk.c
+++ b/src/ptk.c
@@ -18,12 +18,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-static void mouse_button_callback(GLFWwindow *window, int button, int action, int mods) {
-    double x, y;
-    glfwGetCursorPos(window, &x, &y);
-    vk_handle_mouse_button_input((PtkPos){ .x = x, .y = y }, button, action, mods);
-}
-
 PTK_OPTION_DEFINE(PtkLogLevel);
 
 PTK_OPTION(PtkLogLevel) get_log_level(void) {
@@ -98,11 +92,6 @@ bool ptk_init(const size_t width, const size_t height, const char *title, const
         return false;
     }
 
-    glfwSetFramebufferSizeCallback(window, vk_framebuffer_resized);
-    glfwSetMouseButtonCallback(window, mouse_button_callback);
-
-    vk_init_vertices();
-
     // on tiling desktops (most standalone X11 WMs / Wayland compositors)
     // the size of the window won't necessarily be what the user set due to tiling
     // so we do this ugly workaround where we fetch the size again
diff --git a/src/ptk_vk/init.c b/src/ptk_vk/init.c
index c6d4a8f..9051aad 100644
--- a/src/ptk_vk/init.c
+++ b/src/ptk_vk/init.c
@@ -174,11 +174,22 @@ bool vk_update_uniform_buffer(const size_t current_frame) {
     return true;
 }
 
+static void mouse_button_callback(GLFWwindow *window, int button, int action, int mods) {
+    double x, y;
+    glfwGetCursorPos(window, &x, &y);
+    vk_handle_mouse_button_input((PtkPos){ .x = x, .y = y }, button, action, mods);
+}
+
 bool vk_init(GLFWwindow *window, const size_t width, const size_t height, const char *title, const PtkVersion version) {
     m_window = window;
     m_uniform_buffer_object.initial_window_size.w = width;
     m_uniform_buffer_object.initial_window_size.h = height;
 
+    vk_init_vertices();
+
+    glfwSetFramebufferSizeCallback(window, vk_framebuffer_resized);
+    glfwSetMouseButtonCallback(window, mouse_button_callback);
+
     PTK_OPTION(VkInstance) instance_opt = vk_instance_create(title, version, m_validation_layers);
 
     if (!instance_opt.exists) {