Permits and deadlines
Permits attach to cairns — the actual permit, with the agency and the window, on the place that needs it. Divide then surfaces two things across the whole trip: what's still unbooked, and which window is about to close.
Attaching a permit
On any cairn, add a permit with: agency (“NPS Yosemite”, “Inyo National Forest”), name (“Half Dome cables — preseason lottery”), booking link, cost, and the type — lottery, first-come-first-served, or none required. Lottery permits take an application window: the open and close dates that become the deadline the tool watches.
Status and flags
A permit is Needed → Applied → Booked (or N/A). Anything not yet booked flags its cairn in the itinerary and on the map with the permit-needed treatment, and the trip's permit panel lists every open item sorted by how soon its window closes. The point is that February-you sees the March window before it passes — the deadline lives in the plan, not in your memory.
The permit library
Divide ships a curated library of the major systems — Whitney Zone, Yosemite wilderness quota, the Enchantments, Coyote Buttes, and the rest — each with agency, booking URL, type, and window notes. Attaching from the library prefills everything; you adjust dates for your year. The library is maintained by hand, by me, because agencies change their rules and a stale link is worse than none.