Google's Zanzibar paper was initially used as inspiration for Authzed, but the broader software community has also taken an interest in this technology. A recent Google trends search corroborates this observation. The CEO of Authzed recently presented a survey of existing Zanzibar-based implementations, which were reviewed against a rubric that included measures such as paper faithfulness, scalability, and CAP compromise. The video of his talk will be posted soon, and it includes a detailed discussion of each implementation. Airbnb's Himeji was one of the implementations reviewed, scoring medium on paper faithfulness, high on scalability, AP on CAP compromise, no zookies on new enemy support, and average on developer UX. The community is encouraged to share their thoughts and introduce new Zanzibar-inspired implementations not covered yet.