portname run dev → myapp.localhost:1999
Auto-detects Vite/Next/Nuxt, patches config automatically, proxies WebSocket so HMR works. Single binary, no dependencies.
for custom domains like myapp.company.com you'd need to manually add it to your hosts file (/etc/hosts on Mac/Linux, C:\Windows\System32\drivers\etc\hosts on Windows) pointing to 127.0.0.1.
custom domain support is something i'd like to add in future