Lentura.
An AI-powered, unhurried trip planner — chat-driven itinerary generation on top of a map-first planning surface.
↗ lentura.co
Lentura is a solo-built trip planning app: a map-first landing where you drop a pin or describe the vibe ("Two slow weeks in Tuscany, mostly lunch...") and get a day-by-day itinerary back. Originally shipped under the name Saunter, rebranded to Lentura mid-build.
My Role
- ▹Designed and built the chat planning engine as a multi-agent pipeline — a deterministic Manager FSM coordinating specialist agents, replacing an earlier single monolithic prompt
- ▹Built the Next.js 16 / React 19 frontend, including the map-driven landing and itinerary views
- ▹Implemented Google Maps itinerary visualization (AdvancedMarker + Pin, photo pins, day-colour badges) after migrating off the deprecated Marker API
- ▹Built drag-and-drop day/activity reordering (dnd-kit) and PDF itinerary export (@react-pdf/renderer)
- ▹Set up the Supabase backend (Postgres + SSR auth) and LLM integration via OpenRouter
- ▹Added rate limiting (Upstash Redis) and a Vitest test suite covering itinerary/date-parsing edge cases
Challenges
- ▹Brittle natural-language date/destination parsing — dozens of known edge cases (vague dates, bare country names, cross-border origins, drive-vs-fly routing) had to be hardened one by one
- ▹Keeping the planning FSM deterministic while still LLM-backstopped for salvage/refinement of ambiguous input
- ▹Region-aware destination resolution (e.g. "Tuscany" vs a same-named city elsewhere) and drive-led itinerary flows (ferries, cross-border origins)
- ▹Mid-build rebrand (Saunter → Lentura) touching design tokens, copy, and branding across the whole app
Results
- ▹Shipped and running live at lentura.co
- ▹End-to-end AI planning flow: natural-language input → structured itinerary → map view → drag-reorder → PDF export
- ▹Migrated off deprecated Google Maps APIs with no functionality loss
- ▹Automated test coverage for the trickiest parsing/geo edge cases
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Interested in working
together?
Open to freelance builds and enterprise collaborations. Let's turn the idea into something shipped.