diff --git a/network-poc/Dockerfile.prod b/network-poc/Dockerfile.prod
index b4711ba..fafb760 100644
--- a/network-poc/Dockerfile.prod
+++ b/network-poc/Dockerfile.prod
@@ -3,10 +3,11 @@
 # --- Vaihe 1: Frontend (Astro) ---
 FROM node:22-slim AS frontend
 WORKDIR /app/frontend
+# Riippuvuudet ensin → cache-kerros (muuttuu harvoin)
 COPY frontend/package.json frontend/package-lock.json* ./
 RUN npm install --silent
+# Lähdekoodi → muuttuu usein, mutta npm install on cachessa
 COPY frontend/ .
-COPY frontend/public/pkg public/pkg
 RUN npm run build
 
 # --- Vaihe 2: Wasm (wasm-pack) ---