[popcalc]

Reminds me of this very cool zero width steg project: https://github.com/vedhavyas/zwfp

I used the go code to develop an iOS app that, while I and my friends thought was very cool, Apple didn't think had enough features to publish :(

Edit: Obviously this isn't going to fly under the radar when a state actor is concerned.

[yvbbrjdr]

Interesting project! But yeah it requires little effort to detect