In an attempt to push forward the design and/or stabilization of custom DST capable smart pointers (and probably custom DSTs as well as they are tightly related) we (ferrous-systems) would like collect all the information around the unsize, coerce_unsized and dispatch_from_dyn features that is currently floating around. This includes any other feature that may depend on these or be related as well as any issues or potential future issues that are known for the current designs of these features.
I currently have a very crude list of things I've found here: HackMD - Collaborative Markdown Knowledge Base
So if anyone knows of things that aren't on the list yet, or wants to raise anything they think would be related we'd love to hear about it.