[Fizzlemizz]

Given it can't be used in XML atm then maybe it is possible.

The intrinsic is essentially just a layout template that is unlikely to change so maybe it can be handled by creating that as a standalone "top level" addon with just a stub mixin which is updated/versioned when the "embeded" code is loaded.

Then it would be pretty much no different to using LibStub and only as messy as any library that manages multiple game clients in a single source.. I think.

Something to nut through next, thank you all.