A "bunch" is not a valid item count.
They are going to be dissatisfied by whatever colour "red" is chosen. Or with the sequence of steps to get to a goal in a paginated step flow if not ironed out first.
If something is going to expire, they need to specify the time along with the date and whether it is attached to the user's timezone or UTC.
They are going to say Firebase when they mean Mixpanel because they might have Googled something and badly misunderstood it.
You are trying to do a structured activity based on the thoughts of someone who often isn't.
Given the choice between writing code that gets tossed or a tedious and repetitive conversation where I am endlessly asking "can you be more specific?", I choose writing code. Someone else can have that conversation.