All of it. People around me don't believe me, but I keep zero cash in practical terms. I make enough that I don't have to worry too much about living expenses, meaning I always have money left to save. Which I convert 100% to bitcoin.

As a matter of fact, my fiat net worth is negative because I took a personam loan -- which I used to buy bitcoin in one lump sum at significantly lower prices, instead/on addition to my regular DCAing.

(The monthly loan payments are around 5% of my monthly income, and I could always sell some to pay it off completely, so risk has been properly managed).