The Free Republic of Liberland doesn't look like much from the boat. You would never guess that this flat, muddy stretch of floodplain on the Danube River, dotted with alder trees, tents and treehouses, is connected to some of the world's wealthiest men - including the biggest initial investor in the Trump family's crypto business. This was reported by Qazaqyia.kz citing BBC News.

By contrast, the virtual reality version of Liberland I'm currently being shown, designed by Zaha Hadid's ZHA architecture firm, features gleaming towers, floating public parks, and gravity-defying water features. The person showing it to me is Vít Jedlička, Liberland's president. He founded the micronation on a disputed bit of territory between Serbia and Croatia with the goal of making a truly libertarian, digital country that runs on the same technology as cryptocurrencies.

I've come to Liberland for the past year as part of a BBC Two documentary, The Tech Billionaire Takeover. Liberland may look and sound like a joke. But it is bankrolled by some of the wealthiest men in crypto, and it runs on an idea they are trying to export: that government itself can be replaced.

We arrive at the country by boat because Croatian authorities have stopped people from doing so by land. A few settlers in anoraks come out to wave to us from the shore and President Jedlička, communicating via megaphone, presents one of the settlers with an official medal.

In most modern democracies, everyone has an equal vote. But things are different in Liberland thanks to a purchasable crypto token called Liberland Merits. President Jedlička tells me a person is elected through Merits. "So the people that have more Merits are able to have more say in who is going to be in the leadership of the country," he says. This effectively means you can vote directly with your money.

Liberland is also entirely tax-free, something its interior minister, Ivan Pernar, a controversial Croatian former MP who was kicked out of parliament for spreading conspiracy theories, explains to me. "Usually, people who believe in freedom, decentralised finances and so on, they tend to be from the upper class of society," Pernar tells me. "If you make zero selection and you say whoever comes on [the] boat is welcome, we would end up like [the] UK. We don't want that."

"So it's liberty, but... some people have more liberty than others?" I ask. One of the main ways to gain power and influence in Liberland appears to be through money, I suggest. "Of course," says Pernar. He says that if you had "a bunch of bums in your country without anything", others would have to contribute to their benefits. He goes on to compare the poor to animals. "Don't feed the animals, because if you do, they will be accustomed to that and they will lose [the] ability to feed themselves. The same is with people."

To Liberland's wealthy backers, helping the poor - or indeed any form of taxation or centralised redistribution of wealth - is an affront to their individual liberty. This view is shared, unsurprisingly, by people in this world with far more money and influence than Pernar.

Over the past year, I've been hanging out with Liberland's prime minister, Chinese crypto titan Justin Sun. With Sun's backing - and that of about 30 other tech billionaires, they claim - the Liberlanders may now actually have access to the money needed to start building the version of their micronation with gleaming towers. Sun is worth an estimated $8.5bn (£6.4bn). He's perhaps most famous for purchasing an art piece consisting of a banana duct taped to a wall for $6.2m and then eating it. He has also been accused by US regulators of fraud and market manipulation. Sun denies the charges, and recently reached a $10m settlement to resolve them.

His company, Tron, is a blockchain, a global software network on which you can buy and sell crypto currencies. Unlike a bank, it isn't run by one single authority - it's decentralised, existing across many computers all around the world, making it harder to tax and regulate.

This same blockchain technology is being used to run Liberland's government and one day, if Sun gets his way, it could run ours too. Citizens vote on laws and referendums using digital tokens, and the voting itself is automatically tallied and enforced by code, rather than counted by officials. In reality, though, the technology is still in its juvenile phase, and human officials are still required to implement laws.

According to blockchain analytics firm TRM Labs, Tron is one of the biggest platforms for moving illicit crypto - reportedly including funds tied to Hamas and Hezbollah, alongside those of drug cartels and mafia networks. Sun says Tron has innovated new collaborations with law enforcement to tackle illegal transactions on the blockchain, leading to huge declines in illicit volume on the platform.

The Trump family welcomed him as lead token investor in their own crypto business, World Liberty Financial. Sun invested more than $75m in the company, as well as millions more in Donald Trump's memecoin, which won him a dinner with the US president. President Trump officially stepped down from the company once he took office but his family trust still owns and profits from it, selling a cryptocurrency coin called USD1. He has made more than $1.4bn from crypto in the past year, and stands to make much more.

It's safe to say the Trumps have profited hugely from their relationship to Sun. But what do Sun and other crypto entrepreneurs who have cosied up to the Trumps want in return? Liberland may offer a glimpse. In person, Sun is warm and friendly. Like other billionaires I met, I sense...