Vercel

CLI Essentials

npm i -g vercel                        # install CLI
vercel login                           # authenticate (browser flow)
vercel link                            # link current directory to a Vercel project
vercel                                 # deploy to preview
vercel --prod                          # deploy to production
vercel dev                             # run local dev server (mirrors Vercel environment)
vercel dev --listen 4000               # custom port

# Environment variables
vercel env ls                          # list all env vars
vercel env add SECRET_KEY              # add interactively (prompts for value and scope)
vercel env add DATABASE_URL production < .env.production  # pipe value for specific scope
vercel env pull .env.local             # pull remote env vars to local file
vercel env rm SECRET_KEY production    # remove from specific environment