Timesketch: Collaborative forensic timeline analysis
github.com
github.com
Google controls the repo hence it's under the Google GitHub org. But then you just slap the "not a Google product" thing at the end to clarify that it's "just" some engineers publishing code rather than the release of the code of a Google product (nor a major strategic open source initiative like Go).
So it could even be a pure hobby project - not something done for work - where the initial author (over a decade ago) chose to release it under Google's copyright rather than use the exception process.