In a post on X, Vembu said Arattai is in early talks with iSpirt’s Sharad Sharma—the architect behind UPI’s tech backbone—to publish and standardize the app’s messaging protocols.

The Etch A Sketch was never supposed to meet a Raspberry Pi, a camera, or a mathematical algorithm, but here we are. [Tekavou]’s Teka-Cam and TekaSketch are a two-part hack that transforms ...