When a family vacation or group expedition spans multiple airlines, hotels, rental cars, and currencies, Surmai brings every reservation and shared cost into one collaborative travel planner. Each trip breaks down into dedicated sections for transportation legs, lodging stays, daily activities, and travel notes. Confirmation codes, terminal numbers, departure times, and street addresses stay right where everyone in your party can find them. Built-in airport, city, and airline directories auto-complete flight routes in seconds, or you can forward booking confirmation emails directly into an active trip for automatic parsing. The chronological itinerary view then weaves flights, hotel check-ins, and excursions into a clean day-by-day timeline so your group can spot layover gaps immediately. Boarding passes, train tickets, and PDF vouchers live inside a central attachment vault. Installing the Progressive Web App caches your entire itinerary and travel documents on your phone for offline viewing at airport gates or remote trailheads. A built-in expense ledger logs shared purchases across multiple currencies so nobody has to guess who paid for dinner. Administrators can invite fellow travelers over SMTP email, enable OAuth2 or OpenID Connect login with Authentik, Keycloak, Google, or Microsoft, and replicate backups continuously to S3-compatible object storage. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.