hmm, I imagine the then 2 prevalent systems of neoliberal capitalism and soviet-style "communism" to be a pretty terrible combination actually. Although I believe I get what he was trying to say about individual rights within an economy of the commons(or at least thats how I interpret it).
Smaller groups of humans (villages, households, ...?) could decide among themselves whether they prefer to live together by capitalist or communist principles. These smaller groups could function within a larger federation - a bit like the fediverse with its smaller instances where each can decide their own internal rules.