Have You Seen Park Slope's Greenhouse Truck?

A GL reader sent along a photo of a fascinating truck that's been spotted parked in Park Slope "with an installed greenhouse in its bed." She wrote:

I looked around for some sort of logo, but this appears to be the project of an individual Brooklynite. My assumption is that this person missed their backyard vegetable garden and decided to install a mobile one, allowing them to park it in the sunlight as needed. The truck is outfitted with a system to catch rainwater and disperse it among the plants -- a very robust little crop of peppers, tomatoes, etc...Last seen on St. John's Place in the Slope between 6th and 7th Aves.

Us, we have window boxes and settle for flowers, but this is very cool.