This is almost as green and carbon-free as possible. It's accessible to normal people, it doesn't require exotic hardware, labor or permitting, it provides good heat and fresh air, all with little ongoing effort once installed.
That's just solar panels/collectors with less extra steps! :D
But I'm all for this idea, basically adaptive sunlight based heating. It also works if the house is more of a greenhouse, like if you have floor to ceiling or ceiling windows with some sort of shades to regulate the amount of light. It's really convenient & intuitive + can be automated with simple controllers (and like Home Assistant).
Love the energy of this girl & that she made this vid.