The walker code base currently resides at github.com/teaforthecat/services.git and github.com/teaforthecat/minibuild.git
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Basic schema extensions have been added to services , nothing (in the directories with "walker" in the name), though they are not working.
Nothing has been done with the minibuild, though a deployment script has been build around it.
The script is written with fabric. It can be used from both repos with a symbolic link, though the file should remain in the minibuild.
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After the walker specific schema has been implemented, we will create the fields for the performing arts domain initiative. A A future effort will be to extract the schema that supports the performing arts domain into its on own branch. This This work is waiting on a structure of community contributions to the core/contrib of collectionspace.
At the same time that the schema is being developed the minibuild will be used to tweak the UI; mainly hiding fields per Angela's doc as well.
The issues relating to this project are being tracked in the walker's redmine installation.