Who is this 20-year-old claiming to be the 'Gen Z President' of a new country, offering passports, PR and identity cards?

Daniel Jackson: A young man has claimed a small patch of land along the Danube River as a new nation. He calls it the Free Republic of Verdis. Croatian authorities reject this claim. The project began as an online idea and has gained thousands of online supporters. An attempt to settle the land was quickly stopped by police.