diff --git a/webclient/vite.config.perf.js b/webclient/vite.config.perf.js
new file mode 100644
index 0000000..e6f34e4
--- /dev/null
+++ b/webclient/vite.config.perf.js
@@ -0,0 +1,20 @@
+import { defineConfig, mergeConfig } from 'vite'
+import baseConfig from './vite.config.js'
+
+// Isolated dev stack for profiling / experiments: proxies to a dedicated
+// navi-server clone on 8097 instead of the main one on 8099.
+// Usage: npx vite --config vite.config.perf.js
+export default mergeConfig(baseConfig, {
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:8097',
+        rewrite: path => path.replace(/^\/api/, '')
+      },
+      '/ws': {
+        target: 'ws://localhost:8097',
+        ws: true
+      }
+    }
+  }
+})
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