diff --git a/IDEAS.md b/IDEAS.md
index 201bc6f..61b0c32 100644
--- a/IDEAS.md
+++ b/IDEAS.md
@@ -8,3 +8,6 @@ more ideas on what to try out
 - [ ] ImGui?
 - [ ] extending SDL_gpu?
   - [ ] access to the underlying Vulkan types
+- [ ] check out the Vulkan calls generated
+  - are they correct? (synchronisation, image transitions, etc.)
+  - are they good? (performance wise)
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