Found random Ali-sourced RGB string with USB dongle.
Duck'd the app name + HomeAssistant.
Found HACS integration for it.
Needs Bluetooth. Too far from HA server.
Found Bluetooth Proxy for ESPHome.
Enabled BT Proxy on my ESP32-S3-Box-3 Voice Assistant.
HA autodiscovered the dongle and IT WORKS JUST FINE!
Fscking hell, I love Free Software and HA in particular!