8 people are the primary owner of at least one file in knadh/listmonk, and Kailash Nadh owns the most: 127 files, or 61% of the codebase. The truck factor is 1: that is how few people would have to leave before the majority of owned files lose their owner. 180 files have exactly one contributor, and 5 modules are dominated by a single person.
Engineering-leader view of who owns what: silos, hotspots, dead code, and bus-factor risk by person.