Shareable Map Drawing & Collaboration Tool

Teams need a lightweight, account-free way to draw and share map annotations without server infrastructure overhead. Build a URL-based map tool where drawing state lives in the URL fragment, enabling instant sharing and real-time collaboration. Target: Event planners, logistics teams, hiking groups, and collaborative planners.

Google MyMaps exists and is free, which is the ceiling-setter here — any paid tool has to clear a real "why not just use that" bar. The URL-fragment state trick is genuinely clever for zero-infrastructure sharing and has seen renewed interest as teams push back against account-gated tools, but the audience (event planners, hiking groups) skews heavily toward free-tier tolerance, which makes the $1k–5k/mo revenue band optimistic unless there's a clear B2B hook like embedded maps for logistics or field operations teams. At difficulty 2/5, the build is fast, but that also means it's trivially replicable and hard to defend. The single most likely failure mode is that the free substitute is good enough and no segment ever converts to paying at a rate that matters.