(This is something in the back of my mind whenever I hear calls for a shift to land value taxation. I can't really see it happening in a way that doesn't further normalise wage labour).
In the longer term, government could also be self-sufficient. This might be unstable though, it might be better for there to be a contribution of materials/energy/information to the the government from self-sufficient communities. The government would still provide the value of protection/arbitration to the self-sufficient communities.