I just seem to remember I was excited to look what the CanCan Dapp was about. Is it live on the IC?
My assumption is that CanCan was more of a proof of concept/demo dapp that people can use to learn or get inspired by. But I dont know for sure
The source code is on github under the dfinity org
Hopefully this might help as well:
https://74iy7-xqaaa-aaaaf-qagra-cai.raw.ic0.app/search/cancan