[simion314]

They can't replace something with Wayland because Wayland is a protocol and interface, Mir needs to implement code to speak that protocol.

[shmerl]

OK, then they are replacing the compositor and changing their client, rewriting it to talk in Wayland protocol.

[simion314]

They are no removing a Mir component and add a Wayland component, they implement the Wayland protocol on top of existing code, maybe refactoring where it is needed, so Mir could talk wayland and still do the Mir stuff that is needed for IoT.