Living Document Notice
Staged 2026-09-28. Living revisions and interconnected notes live in the Bosun PKM Garden.

Dynamic Itinerary Stitching and CalDAV Transit Sync

Coordinating multi-leg travel schedules across disparate booking confirmations requires deterministic calendar synchronization. CalDAV protocols provide standardized event streaming without proprietary vendor lock-in.

Itinerary Invariants

  • RFC 5545 Compliance: Transit legs and hotel waypoints generate standard VEVENT components with embedded GPS coordinates.
  • Declarative Booking Sidecars: Confirmation PDFs pair with JSON metadata sidecars capturing booking references and cancellation policies.
  • Automated Timeline Merging: The Wayfinder engine resolves overlapping transit windows and flags impossible connection intervals.

Deterministic calendar synchronization keeps expedition timelines transparent and resilient to change.


  • Directus Target: wayfinder-blog
  • Garden Source Reference: MOC - Wayfinder Transit Systems, MOC - Calendar Operations, TRC-1001 - 5-State Checkbox AST Spec