# TecnoCric realtime transport

The current build uses a PHP/MySQL event relay with native Server-Sent Events (SSE). Browsers receive events through `EventSource` and publish commands using HTTP POST. The compatibility class remains named `SSEClient` so existing controller and overlay themes can keep their current `send()`, `onmessage`, `onopen`, and `close()` calls.

See `PHP_REALTIME_SETUP.md` for deployment and testing instructions. The bridge is server-backed and works across different domains and devices; it does not rely on browser localStorage.