Imagine, you've managed to get your own sovereign island of around 100 sq.km. If you do nothing extremely objectionable, the sovereign nations of the world won't bother you. No one protects you against pirates. You are not prevented from buying arms from international dealers, but no one considers you big enough to actually try to make a sale. You have exhausted your cash in buying the island and have enough money to feed your family for around 2 years only, left with you.
Assume that you have hot weather, but plenty of water.
Design your government and tax system. (Anarchy, minarchy, actual signed social contract, townhall democracy, etc)
Design your monetary system. (A new fork off bitcoin, bitcoin itself, modified peer to peer currency, Gold, etc.)
Significant variations from today's laws that you want to note (intellectual property, personhood laws, etc.)
Any other individual quirks you'd like to add ( Entry for hot girls only, Everyone speaks a new language, anything that strikes your fancy)
What would you do to convince productive people around the world that they will be better off if they come to your little island compared to wherever they are living right now?
it will be difficult, I will say so, when people see for themselves how good I am on the island and without them, they will come running, because they have the instinct such, to bug where the best conditions.