Carbon Neutral house

I wish to promote carbon neutral living by creating a living community that can welcome visitors and show them daily life from a new perspective whether as a kitchen with dinner guests, an Airbnb, a garden to share with others and so much more.
I have previously lived in a kind of 'purpose wg' and have visited ecological projects in the past. I want to create a totally DIY secondhand, carbon neutral home, document the process and share online and then welcome visitors to see it firsthand. I hope you think that this sounds exciting!!!!
It would be wonderful to grow food and create a local kitchen with only local ingredients cooked carbon neutrally and over meals we help others make their lives more ecological and speak about my carbon neutral now manifesto :)
Let's goooo!