Every October, Kingston, N.Y., a city of 23,000 people in the Hudson Valley, attracts throngs of visitors to the O + Festival, a weekend celebration of art, music and wellness.

The O + Festival — it’s pronounced O Positive — is no ordinary civic gathering. It is, improbably, an alternative to America’s profit-driven health care system: The artists and musicians who participate can barter their work for medical or dental care. Help paint a mural, get a cavity filled.

In a story about Kingston headlined The US city preparing itself for the collapse of capitalism, The Guardian last fall called O + Festival an “anti-capitalist, anti-establishment healthcare network” and an “example of a model that could supplant corporate America.” The story explains:

Locals have launched a non-commercial radio station, Radio Kingston WKNY, with widely representative, hyper-local programming that broadcasts via power generators if the grid goes dark. A regional micro-currency called the Hudson Valley Current now exists to, according to co-founder David McCarthy, “create an ecosystem that includes everyone.”

What the story neglects to say is that all these organizations — the O + festival, the radio station, the farm hub, the local currency project and Rise Up — share a powerful patron: The NoVo Foundation, led by Peter Buffet, the youngest son of legendary investor Warren Buffett, and Peter’s wife Jennifer. In 2010, Peter and Jennifer Buffett bought a 19th century farmhouse for $1.2 million in Kingston, a historic city perched on the west bank of the Hudson River, about 100 miles north of Manhattan.

“What started as a weekend getaway,” Buffett says, “became a core piece of what we’re doing at the foundation.”

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