Engineering-leader view of who owns what: silos, hotspots, dead code, and bus-factor risk by person.
5 people are the primary owner of at least one file in pgplex/pgschema, and Tianzhou owns the most: 142 files, or 97% 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. 96 files have exactly one contributor, and 7 modules are dominated by a single person.
