Have you tried using them? Installing packages is way, way faster. Here’s an example of how this is meaningful to an organization, and I’ve personally experienced the same exact thing at my last 2 jobs.
To list some projects and companies that aren’t on NPM: Prettier, Next.js/Vercel, Cloudflare, Hono, Zod, Expo, Tamagui, Tailwind, the list goes on. I actually had trouble finding any major JS projects that are on NPM. These are serious, widely used packages, and they chose non-standard tooling for a reason.
https://medium.com/@chaudharyaniket16/from-14-minutes-to-45-...
To list some projects and companies that aren’t on NPM: Prettier, Next.js/Vercel, Cloudflare, Hono, Zod, Expo, Tamagui, Tailwind, the list goes on. I actually had trouble finding any major JS projects that are on NPM. These are serious, widely used packages, and they chose non-standard tooling for a reason.