Here are a few anarchist and anarchist-adjacent sources to go into specifics about institutions that an anarchist society might have:
The Possibility of Cooperation by Michael Taylor - A critique of Hobbes's argument for the state with modern game theory
https://www.radicalxchange.org/media/blog/plural-money-a-new-currency-design/ - A currency design that encourages mutual aid. Mentions how collective ownership can be achieved without a state.
Ancaps support employment contracts. This is contradictory: https://www.ellerman.org/inalienable-rights-part-i-the-basic-argument/
Capitalism is inherently based on dishonesty. It routinely treats people as things in the employer-employee relationship. When the factual and legal situation don't match, that is morally a fraud.
Postcapitalism would consists of various intersecting and overlapping voluntary democratic associations managing their own collectivized means of production. Within these groups, there would still be a notion of possession of the shared asset.
@technology