Who is that? Seems no one seems to be working on it based on honest narratives.

ECash could be useful between a client and a server in place of API tokens, but that's not what its being shilled as.

The ECash narrative is based on lies about privacy, bitcoin affinity, and as payment rails. It goes hand-in-hand with the coordinated FUD over Lightning and gets massive funding by very sus NGO's- even in dollarized forms despite donations being for Bitcoin development.

Fact is, the state apparatus can live with Bitcoin as savings tech because they control the institutions... but if it enters the economy that is much less able to be controlled. ECash is a spook op for digital dollars, nobody would care about it for what it's good at: API's.