Poor people in Dakar have to spend a lot of their income paying a cartel monopolistic prices to empty their septic tanks and latrines.

The article recommends "Uber for poop", but I think that this is different from Uber in a crucial way.

Uber is an unjust democracy-threatening surveillance system that tracks customers' movements. By contrast, calling a company to empty your septic tank does not give it important data about your life. This service might be morally legitimate.