Small ESPAsyncWebServer demo that exposes a captive portal over a SoftAP and renders a DFTE template directly to the HTTP response stream. It highlights:

Per-request TemplateContext ownership to avoid concurrent request clashes
PROGMEM template with shared CSS/header/footer snippets
Runtime data from RAM getters (uptime, connected station count)
Captive portal DNS redirect so clients automatically receive the dashboard

Build

pio run -d examples/StreamingAsync -e example_esp8266

See the shared [examples guide](../README.md) and [async web guidance](../../docs/ASYNC_WEB.md).
pio run -d examples/StreamingAsync -e example_esp32

Flash the board, connect to the SoftAP announced by the device (DFTE-Portal-8266 or DFTE-Portal-ESP32, password dfte-demo), and your browser should automatically present the streamed dashboard. If it does not, navigate manually to http://192.168.4.1/.