This Thursday, April 21st, at 1pm (ugh) they're opening the lot to the public to view the incredible archaeological finds they've unearthed on the lot, which they've been diligently recording, and sharing details at
https://www.westshipyard.com/
Most of it's probably going to get destroyed during the construction of the building, but a big reason why the park's there is to preserve the rest of the archaeology on the site.
I'm seriously not one to give shout-out to multi-billion-dollar organizations, they don't need me to cheer them on, but outside of federal projects, has there ever been this scale of preservation done as part of a private development like this? One Water Street couldn't even bother to fix the Belgian blocks on historically-designated Front Street.