nwhy command

Clear and concise description of the problem

Might as well read this guy first: https://github.com/antfu-collective/package-manager-detector/issues/78

ni and the commands it provides are great because no matter what package manager, the command just works and everyone is happy.

One command I love is the why so you can figure out how a transitive dependency is being pulled in. So why no nwhy?

Suggested solution

nwhy will call out to yarn why or bun why or whichever package manager happens to be in use in that project.

Alternative

Alternative is that I am just gonna build a one-off tool for this, but like that sucks. So many people already use this great package.

Additional context

Most package managers support this command in some way deno not included. all package managers sold separately.

Agent	Command	Docs
npm	npm explain (npm why alias)	https://docs.npmjs.com/cli/v11/commands/npm-explain/
yarn (v1)	yarn why	https://classic.yarnpkg.com/lang/en/docs/cli/why/
yarn (berry)	yarn why	https://yarnpkg.com/cli/why
pnpm	pnpm why	https://pnpm.io/cli/why
bun	bun why	https://bun.com/docs/pm/cli/why
aube	aube why	https://aube.sh/cli/why.html
nub	nub why	https://nubjs.com/docs/install (no dedicated page; why is in the info-verb set dispatched to the aube engine, see https://github.com/nubjs/nub/pull/40)
deno	—	no equivalent

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