There are a few different ways to configure your CloudFree Smart Plug.

If you wish to keep Tasmota on the plug, configure the plug to interface with your MQTT broker.
Integrating Tasmota with Home Assistant

If you instead want to flash the plug with ESPHome, this can be done by flashing Tasmota 7.2 Lite onto the plug, then flashing it with your compiled ESPHome binary.
Configuration Templates