Homeassistant (hassos probably does not handle custom plugins) + ruuvitag custom plugin for homeassistant + automations within hass.
But you really check first how well Hue plays with Osram. IKEA Trådfri does not at all even when all of those use common ZigBee standard communication and IKEA has similar power plugs available.
DM if you need configuration examples or similar, I contacted plugin author to fix custom plugin in order to function with newer homeassistant installations so its documentation should be enough atm.