Vercel CLI — the commands that come up in daily work

## Auth + link
`vercel login` — authenticate (once per machine)
`vercel whoami` — show current user
`vercel link` — link current dir to a Vercel project
`vercel link --yes --project <name>` — non-interactive link

## Deploy
`vercel` — deploy current dir to a preview URL
`vercel --prod` — deploy to production
`vercel --prebuilt` — deploy a pre-built output
`vercel logs <deployment-url>` — read deploy logs

## Env vars
`vercel env ls` — list all env vars
`vercel env ls production` — only production
`vercel env add NAME production` — interactive add
`echo "$VAL" | vercel env add NAME production --force --yes` — non-interactive (CI-safe)
`vercel env rm NAME production` — remove
`vercel env pull .env.production.local` — pull all to a local file

## Domains
`vercel domains ls` — list owned domains
`vercel domains add example.com` — register domain (paid)
`vercel domains buy example.com` — buy through Vercel
`vercel domains transfer-in example.com` — start transfer in

## DNS
`vercel dns ls example.com` — list DNS records
`vercel dns add example.com sub CNAME target.vercel.app` — add record

## Inspect
`vercel inspect <deployment-url>` — full deploy info
`vercel ls` — list recent deployments
`vercel rollback <prev-url>` — promote a previous deploy to production