also this repo is quite old, the original source is at framagit https://framagit.org/hubzilla/

yes, i think it should be since due to hubzilla’s federated login this becomes a federated marketplace where a person from a different hub can buy/sell from/to people from other hubs seamlessly.

hubzilla does marketplace too, it has a cart plugin that lets a user host their own shop. should be updated

this portable identity feature has existed for a number of years in hubzilla, its implemented as its own ‘zot’ protocol, offering nomadic identity as well as account cloning(redundancy).