Wife's co worker pointed this out as she takes siphon coffee to work every day, and keeps ground homeroast ready for emergencies.
It's a coffee shop inside a shop display window.
The Coffee Lab (141 Spadina, at Richmond, instagram.com/the.coffee.lab) is about as much of a hole-in-the-wall as a cafe can get.
His shop is 18 square feet, just enough room for a machine, grinder, fridge, sink, hot water dispenser and Campos himself. https://nowtoronto.com/food-and-drink/food/coffee-lab-toronto/