If I am a US citizen with negligible assets and a plan to move abroad and renounce my US citizenship, and I plan to found a software startup, how should I go about it to minimize the taxes I eventually pay to my soon to be former government, whose unjust practices I'm trying to stop funding?

I could potentially wait until my US citizenship is a thing of the past before I even build anything, let alone create a new legal entity. But ideally I would find a way to start this now.