# expose > An open source tunnel application for sharing websites. > More information: . - Register your authentication token: `expose token {{token}}` - Share the current working directory: `expose` - Share the current working directory with a specific subdomain: `expose --subdomain={{subdomain}}` - Share a local url: `expose share {{url}}` - Run the Expose server: `expose serve` - Run the Expose server with a specific hostname: `expose serve {{hostname}}`