trails/openspec/specs/journal-landing/spec.md

Purpose

The Journal home page (/) serves three audiences with one route: anonymous visitors arriving at the flagship trails.cool instance, anyone landing on a self-hosted Journal instance, and signed-in users returning to their own home. It introduces the product to visitors on the flagship, shows a public activity feed on every instance for visitors, and swaps in a personal activity stream for signed-in users so "home" means "your stuff."

Requirements

Requirement: Home behavior depends on session

The / route SHALL render one of two distinct layouts based on whether the request carries a valid session. Signed-in users see a personal activity dashboard; signed-out visitors see the marketing + public-feed layout. The two layouts SHALL NOT render simultaneously — a signed-in user does not see the marketing blurbs, auth CTAs, or public instance feed on their home; a signed-out visitor does not see anyone's personal stream.

Scenario: Signed-in user gets the personal dashboard

• WHEN a request to / carries a valid session
• THEN the response is the personal dashboard layout (welcome + New Activity CTA + own activity stream)

Scenario: Anonymous visitor gets the visitor home

• WHEN a request to / carries no session
• THEN the response is the visitor home layout (hero + auth CTAs + flagship-conditional marketing + public-feed)

Requirement: Visitor home hero and auth CTAs

For signed-out visitors, the home page SHALL render a hero section with a product-describing headline, a short tagline, and Register and Sign In as the primary CTAs. A link to the Planner SHALL be available but visually secondary to auth, because the main conversion goal is account creation.

Scenario: Auth CTAs are primary

• WHEN a visitor without a session loads the home page
• THEN Register (primary button) and Sign In (outlined button) appear together, with a smaller "Or try the Planner without an account →" link below them

Requirement: Flagship-only marketing section

The visitor home SHALL render a four-card marketing section (Planner / Journal / Federation / Ownership) if and only if the IS_FLAGSHIP environment variable is "true". Self-hosted instances SHALL NOT render this block; instead they SHALL show a "Powered by trails.cool — about the project" link that points to https://trails.cool so operators don't have to author their own marketing copy.

Scenario: Flagship shows marketing

• WHEN the visitor home renders with IS_FLAGSHIP=true
• THEN the four marketing cards are shown and the "Powered by" link is suppressed

Scenario: Self-host shows the back-link

• WHEN the visitor home renders with IS_FLAGSHIP unset or empty
• THEN the marketing cards are not rendered and a "Powered by trails.cool — about the project" link appears below the feed

Requirement: Public activity feed on visitor home

The visitor home SHALL list the most recent public activities on the instance (see activity-feed spec, "Instance-wide public activity feed"). Each entry SHALL link to the activity detail page, show a map thumbnail when geometry is available, and display the owner's display name, distance, and start date.

Scenario: Feed populated

• WHEN public activities exist on the instance
• THEN the home renders a reverse-chronological list of at least the 20 most recent, each as a card with map thumbnail + owner + stats + date

Scenario: Empty feed

• WHEN the instance has no public activities
• THEN the visitor home shows an empty-state message instead of the feed list; all other sections (hero, marketing, CTAs) remain unchanged

Requirement: Personal dashboard for signed-in users

For signed-in users, the home page SHALL render a personal activity dashboard: a welcome line linking to the user's profile, a "New Activity" CTA, and a reverse-chronological list of the user's own most recent activities (including private, unlisted, and public). The public instance feed SHALL NOT be rendered on this view; users who want it can browse other users' profiles or the dedicated activities/routes pages.

Scenario: Dashboard shows user's own activities

• WHEN a signed-in user loads the home page
• THEN they see their own activities in reverse-chronological order, regardless of visibility, up to 20 entries

Scenario: Dashboard empty state

• WHEN a signed-in user has no activities yet
• THEN the dashboard shows an empty-state message pointing to activity creation, while the welcome line and New Activity CTA remain visible

Requirement: Social feed link for signed-in users

For signed-in users, the personal dashboard SHALL include a prominent link to the social feed at /feed (see social-follows spec, "Social activity feed") alongside the existing "New Activity" CTA. The link SHALL be visible regardless of whether the user follows anyone yet — the social feed's own empty state handles the zero-follows case.

Scenario: Feed link on personal dashboard

• WHEN a signed-in user loads /
• THEN the dashboard header shows a "Feed" (or equivalent) link to /feed next to the "New Activity" CTA

Scenario: Feed link is not shown to signed-out visitors

• WHEN an unauthenticated visitor loads /
• THEN the visitor-home layout does not expose a link to /feed (the route requires authentication)