croc does not interop with magic-wormhole but tries to accomplish the same thing.
I made croc because it was really hard to install wormhole on Windows (especially for my non-dev friends). Also I wanted croc to support resuming transfers which has been stalled in wormhole for awhile now. [1]
Why doesn't croc use magic-wormhole's protocol ? Obviously its selling point is in the ease of installation, performance and portability, it's too bad that in doing those the compatibility is lost.