1 person is the primary owner of at least one file in yujunzhixue/dsh-purge, and 叫我小杨同学 owns the most: 62 files, or 100% 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. 62 files have exactly one contributor, and 5 modules are dominated by a single person.