Each shard founds markets and workplaces (farms, woodcutters, quarries,
hunters, toolmakers, cartwrights). Adults are hired, commute to work,
sell their goods at the market, get paid and go home. Markets, workplaces
and carts are actors; prices follow local supply and demand and trades
are haggled. Merchants trade with markets on other shards through the
router, so they do not know whether a market is remote.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>