In a blog post announcing the re-ignition of its curbside service, Target made a point of this iteration now being “built in-house by Target.”
Just before ending its experiment with Curbside, the retailer had touted the scheme publicly as an ideal way to use physical stores to provide convenience to customers (while, presumably, having them take care of the very last, and expensive, mile).
The reboot suggests that Target never did abandon the idea but preferred to build from within, with a new team.