You have to keep refreshing the web browser and looking to an appointment from about 7 AM to 9 AM every day and expect that the appointment will be for that same day. Sometimes they release appointments every morning without notice based on how many employees they have available. Just FYI, thanks to Trump and his evil empire, USCIS is trying to get rid of these in person appointments as much as possible.
Very early, before 8 am
When I finally got one, it was about 630 am that they were available. Try super early!
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