Hey team! Long time.
Per the Readme, I cloned this repo, then executed git submodule update --recursive, which exited quietly and quickly.
Xcode now says: "Missing Package product 'WalletKit'".
I'm an Xcode beginner; if I wanted to add WalletKit library directly to the build, how do I do that? Failing that, is there a working commit that will pull WalletKit in with the git submodule update command?