Kampala – In a low-income suburb of Makindye, in the Ugandan capital, Hakim Kiggundu has gathered a group of around 30 people from the community near his home, under a tree in a clearing among the houses. In this tight-knit community of narrow mud roads and small wooden houses, people are used to living cheek-by-jowl, but now they are sitting on neatly-spaced white plastic chairs, a few metres apart.