Almost always, not everyone purchases the full amount of tokens they were allocated after burning Hydrazine ($N2H4). This means there's some left over after the whitelist sale!
24 hours after the whitelist sale closes, we'll open up a brief first come, first served (FCFS) sale for remaining tokens. With FCFS, anyone who contributed $N2H4 during the burn window has the opportunity to purchase more tokens. The maximum a person can buy is limited by a percentage of their whitelist sale purchase.
Example: If we set it to 20%, a participant that bought 100 USDC worth of tokens during the whitelist sale will have a chance to buy additional 20 USDC worth of tokens during the FCFS round.
These sales go quick! Unlike in the whitelist sale, you're not guaranteed a successful purchase.