diff --git a/packages/browser-tests/Dockerfile b/packages/browser-tests/Dockerfile
index 24b5299c5e..41a99fe7cb 100644
--- a/packages/browser-tests/Dockerfile
+++ b/packages/browser-tests/Dockerfile
@@ -45,10 +45,7 @@ RUN npx playwright install --with-deps chromium
 
 ENV PORT=8080 \
     NODE_ENV=production \
-    CHROMIUM_NO_SANDBOX=1 \
-    WAKU_CLUSTER_ID=${WAKU_CLUSTER_ID:-} \
-    WAKU_SHARD=${WAKU_SHARD:-} \
-    WAKU_ENR_BOOTSTRAP=${WAKU_ENR_BOOTSTRAP:-}
+    CHROMIUM_NO_SANDBOX=1
 
 EXPOSE 8080
 
diff --git a/packages/browser-tests/README.md b/packages/browser-tests/README.md
index 02e6fb5af4..e3f30fbc80 100644
--- a/packages/browser-tests/README.md
+++ b/packages/browser-tests/README.md
@@ -24,10 +24,15 @@ Configure the Waku node using environment variables:
 
 ### Network Configuration
 - `WAKU_CLUSTER_ID`: Cluster ID (default: 1)
-- `WAKU_SHARD`: Specific shard for static sharding (optional)
+- `WAKU_SHARD`: Specific shard number - enables static sharding mode (optional)
+
+**Sharding Behavior:**
+- **Auto-sharding** (default): Uses `numShardsInCluster: 8` across cluster 1
+- **Static sharding**: When `WAKU_SHARD` is set, uses only that specific shard
 
 ### Bootstrap Configuration
 - `WAKU_ENR_BOOTSTRAP`: Enable ENR bootstrap mode with custom bootstrap peers (comma-separated)
+- `WAKU_LIGHTPUSH_NODE`: Preferred lightpush node multiaddr (Docker only)
 
 ### ENR Bootstrap Mode
 
diff --git a/packages/browser-tests/webpack.config.js b/packages/browser-tests/webpack.config.js
deleted file mode 100644
index 0b3f06a238..0000000000
--- a/packages/browser-tests/webpack.config.js
+++ /dev/null
@@ -1,35 +0,0 @@
-import path from "path";
-import { fileURLToPath } from "url";
-import NodePolyfillPlugin from "node-polyfill-webpack-plugin";
-
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = path.dirname(__filename);
-
-export default {
-  mode: "production",
-  entry: "./web/index.js",
-  output: {
-    path: path.resolve(__dirname, "web"),
-    filename: "bundle.js",
-    clean: true
-  },
-  module: {
-    rules: [
-      {
-        test: /\.ts$/,
-        use: "babel-loader",
-        exclude: /node_modules/
-      }
-    ]
-  },
-  resolve: {
-    extensions: [".ts", ".js"],
-    fallback: {
-      fs: false,
-      net: false,
-      tls: false
-    }
-  },
-  plugins: [new NodePolyfillPlugin()],
-  target: "web"
-};