Unable to answer "This place has been vacant. What’s here now?" – house number 3045: Vacant Shop – way/212894171 via StreetComplete 63.4:

Torn down & part of new construction site. Center of frame where old structure was.

Attached photo(s):
https://streetcomplete.app/p/370441.jpg

In context of overlay "Buildings" – house number 1546: Building – way/878049458 via StreetComplete 62.1:

upper/lower duplex

In context of overlay "Things" – Bus Stop – node/13931421024 via StreetComplete 63.1:

Service NFTA, Route 8 Main, direction South/Downtown, SW corner of Main & Delevan. No code visible on either side of signage (photo view NE) -- Moovit reports ID of "29971."

Attached photo(s):
https://streetcomplete.app/p/350913.jpg