webpack/webpack
38 of 40 modules depend on one person
40 of 40 modules concentrated · 51 fences in source · 39 in tests · oldest 8.8 yr
puppeteer/puppeteer
3 of 17 modules depend on one person
4 of 17 modules concentrated · 32 fences in source · 45 in tests · oldest 9.1 yr
expressjs/express
1 of 6 modules are close to a single owner
1 of 6 modules concentrated · 0 fences in source · 2 in tests · oldest 1.9 yr
eslint/eslint
2 of 25 modules depend on one person
2 of 25 modules concentrated · 43 fences in source · 399 in tests · oldest 8.2 yr
All four projects are maintained by excellent engineers, and that is the point. This is not negligence, it is blindness that nothing on the market corrects. Contributors are labelled rather than named: the measurement is about how knowledge is distributed, never about a person.