Test nix build change

Author: kieranjazy

flake.nix

@@ -107,8 +107,9 @@
           version = "0.1.0";
         }
         ''
+          python3 ./demos/chat-client/c++/process_assets.py
           mkdir -p "$out/bin"
-          $CXX -Wall -pedantic ${demos.chat-client.cpp.src} \
+          $CXX -Wall -include ./demos/chat-client/c++/assets.h -pedantic ${demos.chat-client.cpp.src} \
             -o "$out/bin/chat-client.wasm"
         '';