walls. Is free material to build walls and also in place. Where I have that citadel os far from any road, so I can't bring heavy machinery, and materials, I have to deal with what I have on site: dirt, rocks, wood.

Also building with earthbags is the strongest ever and good isolation. Also easier than building with rocks or cement.

That will be just the 1st house, for a complex of homesteading. Is small, 7 x 4m but enough for me to have a shelter meanwhile I will build more houses and shelters there. Also is a good experience, learning. I have ZERO skills in construction, I am just an old IT guy, that decided to go living into the wilderness, self-sufficient.

Next year will be the operation roof and closing the house with the front wall (only big rocks). Then will continue with a large vegetables garden and more houses/bungalows for invites.

The whole place will be a "Bitcoin shrine", with 21 big stepping stones at the entrance where I will carve (for eternity) the 21 reasons why Bitcoin will save the world

It's all done by my hands, no machinery, no other help. Just a shovel and axe. I really want to do it by myself. Many asked me why I do not pay somebody with my BTC, but I do not want it. Building it is Proof of Work.