notes about structure

src/nu/Render.zig

@@ -92,6 +92,11 @@ pub fn frame() !void {
         for (present_callbacks.items) |cb| {
             cb(cmd);
         }
+
+        // todo really don't like this.
+        // there should be some comptime means for a module to invoke hooks on other modules. eg there should be some
+        // "record" hook that for each module that gets called here; but if the render module is never added then that
+        // hook never gets called
         target.end_rendering(cmd);
         try cmd.endCommandBuffer();