DNG are capable of embedding processing settings. I believe Halide is using DNG. I'm sure Ben will have more to say
DNGs support XMP, which is an XML based way of describing edits. However, we're doing post processing that can't really be described in XMP.
We're launching Instant RAW as an MVP to see how people use it, so to that end we've only focused on "I want amazing details from RAW but I have no idea how to use Lightroom. Just let me share it on Instagram." For now.
I'm curious in what way you believe your processing pipeline for "getting to jpg" (RAW -> Instant Raw Processing -> JPEG) is superior to Apple's (capture -> Apple's Processing -> JPEG). Does it just come down to different aesthetic preferences and one-frame-per-image? Or is there something else to it?
Also, love the XDR Analysis. So cool.