Connell has been working on Universal AR, a cross-platform Augmented Reality kit for Mobile Browsers delivering native-level performance using only JavaScript (and a bit of WASM under the hood). We talk about what AR actually is, some of its use cases, as well as the fascinating details as to how the Zap.works team is delivering near native performance and accuracy without IR, LiDAR, or any other of the common advanced AR sensors - just the good ol' phone camera and advanced Computer Visual trickery.