Quote from Longcat1982:
Suppose you start with a brokerage account with some cash.
1) Sell a bunch naked put options and hope they all expire out of the money.
2) When you're faced with a margin call, sell more naked puts until your account value is at $0 or higher
Go to #1
The basic premise is that when your account balance drops below 0, you sell additional naked puts to bring the balance back to 0 (and hope they all expire OTM.)