A journey shared while the trip is still running is read like a blog: the family following along wants the latest entry at the top, not to scroll past three weeks to find it (#1614). The owner sets it per share link, because it is a property of how the link is meant to be read rather than of the journey, and the reader can flip it either way. Off by default, so an already-published link does not reorder itself under its readers. Only the reading order changes. Day colours and stop numbers stay chronological, so the timeline still matches the map when the feed is upside down — which is why the day index is looked up rather than taken from the render loop. Reuses memories.newest/oldest, already translated in all 23 locales.
@trek/shared
Single source of truth for TREK's API contracts, expressed as Zod schemas and consumed by both the server (request validation + inferred DTO types) and the client (typed requests/responses).
This package is part of the incremental NestJS + React 19 migration (see the "Brownfield Rewrite" board). It is intentionally dormant until modules start importing it — adding it changes nothing for users.
Rules
- One folder per domain:
src/<domain>/<domain>.schema.ts(+.spec.ts). - Domain-agnostic building blocks live in
src/common/. - A route is only considered migrated once its contract lives here.
- Schemas are the source of truth; server DTOs and client types are inferred from them
(
z.infer<typeof schema>), never hand-duplicated.
Consumption (dev)
Both apps resolve @trek/shared to this package's TypeScript source:
- Server (
tsx): viapathsinserver/tsconfig.json. - Client (
vite): viaresolve.aliasinclient/vite.config.ts(+pathsfor the type-checker).
Production packaging (Docker / workspace wiring) is introduced in card F2, when the server first depends on this package at runtime. Until then prod builds are untouched.
Not yet here
The canonical error envelope is finalised in card F5 (it must match TREK's current Express error responses byte-for-byte), so it is deliberately not invented in F1.