I still have zero hearts but the round already got reset
The only way to do this apparently is wait until the start of Day 3 before people are allowed to play hearts, and pause the round until the end of Day 4, so people have 48 hours to play 10 hearts, and then hearts get given as normal again on Day 5. In order to do this correctly, everything should be decomped until the start of Day 3.
If people join the round after Day 2 normally they start with 10 gold hearts anyway, so that isn't a problem
It seems like now, if people want to run then they have to join on the off day between rounds
Alternatively, you could not care about the people with 0 hearts on Day 1 and start the round anyway but that's not a good idea. People aren't going to get 5 more hearts tonight (unless they have 0 right now maybe)