TREK

Fri, 26 Jun 2026 18:35:07 +0800

mauriceboe/TREK

A self-hosted, real-time collaborative travel planner — with maps, budgets, packing lists, a journal, and AI built in.

What you get

See all features

🧭 Trip planning

Drag & drop planner — organise places into day plans with reordering and cross-day moves
Interactive map — Leaflet or Mapbox GL with 3D buildings, terrain, photo markers, clustering, route visualization
Place search — Google Places (photos, ratings, hours) or OpenStreetMap (free, no API key)
Place import — shared Google Maps / Naver Maps lists, plus GPX and KML/KMZ/GeoJSON map files
Day notes — timestamped, icon-tagged notes with drag-and-drop reordering
Route optimisation — auto-sort places and export to Google Maps
Weather forecasts — 16-day via Open-Meteo (no key) + historical climate fallback
Category filter — show only matching pins on the map

🧳 Travel management

Reservations — flights, accommodations, restaurants with status, confirmation numbers, files; import from booking confirmation emails and PDFs (KDE Itinerary)
Costs — track and split trip expenses (Splitwise-style): per-person / per-day breakdowns, settle-up, multi-currency
Packing lists — categories, templates, user assignment, progress tracking
Bag tracking — optional weight tracking with iOS-style distribution
Document manager — attach docs, tickets, PDFs to trips / places / reservations (≤ 50 MB each)
PDF export — full trip plan as PDF with cover page, images, notes

👥 Collaboration

Real-time sync — WebSocket. Changes appear instantly across all connected users
Multi-user trips — invite members with role-based access
Invite links — one-time or reusable links with expiry
SSO (OIDC) — Google, Apple, Authentik, Keycloak, or any OIDC provider
2FA — TOTP + backup codes
Passkeys — passwordless WebAuthn login (fingerprint / face / PIN / security key), admin-toggleable
Collab suite — group chat, shared notes, polls, day check-ins

📱 Mobile & PWA

Installable — iOS and Android, straight from the browser, no App Store needed
Offline support — Service Worker caches tiles, API, uploads via Workbox
Native feel — fullscreen standalone, themed status bar, splash screen
Touch optimised — mobile-specific layouts with safe-area handling

🧩 Addons (admin-toggleable)

Lists — packing lists + to-dos with templates, member assignments, optional bag tracking
Costs — expense tracker with splits and settle-up (who owes whom), multi-currency
Documents — file attachments on trips, places, and reservations
Collab — chat, notes, polls, day-by-day attendance
Vacay — personal vacation planner with calendar, 100+ country holidays, carry-over tracking
Atlas — world map of visited countries, bucket list, travel stats, streak tracking, liquid-glass UI
Journey — magazine-style travel journal with entries, photos (Immich/Synology), maps, moods
AirTrail — connect a self-hosted AirTrail instance to import and sync flights into reservations
MCP — expose TREK to AI assistants via OAuth 2.1

🤖 AI / MCP

Built-in MCP server — OAuth 2.1 authenticated. 150+ tools, 30 resources
Granular scopes — 27 OAuth scopes across 13 permission groups
Full automation — AI can create trips, plan days, build packing lists, manage budgets, mark countries visited
Pre-built prompts — trip-summary, packing-list, budget-overview
Addon-aware — exposes Atlas, Collab, Vacay when those addons are on

⚙️ Admin & customisation

Dashboard views — card grid or compact list · Dark mode — full theme with matching status bar
20 languages — EN, DE, ES, FR, IT, NL, HU, RU, ZH, ZH-TW, PL, CS, AR (RTL), BR, ID, TR, JA, KO, UK, GR
Admin panel — users, invites, packing templates, categories, addons, API keys, backups, GitHub history
Notifications — per-user preferences across email (SMTP), webhook, ntfy, and an in-app notification center
Auto-backups — scheduled with configurable retention · Units — °C/°F, 12h/24h, map tile sources, default coordinates

Get started in 30 seconds

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ENCRYPTION_KEY=$(openssl rand -hex 32) docker run -d -p 3000:3000 \
  -e ENCRYPTION_KEY=$ENCRYPTION_KEY \
  -v ./data:/app/data -v ./uploads:/app/uploads mauriceboe/trek

Open http://localhost:3000. On first boot TREK seeds an admin account — if you set ADMIN_EMAIL/ADMIN_PASSWORD those are used, otherwise the credentials are printed to the container log (docker logs trek).

· Docker Compose · Helm / Kubernetes · Install as PWA · Reverse Proxy ·

Tech stack

Real-time sync via WebSocket (ws). Backend on NestJS 11. State with Zustand. Auth via JWT + OAuth 2.1 + OIDC + Passkeys (WebAuthn) + TOTP MFA. Weather via Open-Meteo (no key required). Maps with Leaflet and Mapbox GL.

Docker Compose (production)

Full compose example with secure defaults

services:
  app:
    image: mauriceboe/trek:latest
    container_name: trek
    read_only: true
    security_opt:
      - no-new-privileges:true
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - SETUID
      - SETGID
    tmpfs:
      - /tmp:noexec,nosuid,size=64m
    ports:
      - "3000:3000"
    environment:
      - NODE_ENV=production
      - PORT=3000
      - ENCRYPTION_KEY=${ENCRYPTION_KEY:-}   # generate with: openssl rand -hex 32
      - TZ=${TZ:-UTC}
      - LOG_LEVEL=${LOG_LEVEL:-info}
      - ALLOWED_ORIGINS=${ALLOWED_ORIGINS:-}
      - APP_URL=${APP_URL:-}                 # required for OIDC + email links
      # - FORCE_HTTPS=true                   # behind a TLS-terminating proxy
      # - TRUST_PROXY=1
      # - OIDC_ISSUER=https://auth.example.com
      # - OIDC_CLIENT_ID=trek
      # - OIDC_CLIENT_SECRET=supersecret
      # - OIDC_DISPLAY_NAME=SSO
      # - OIDC_ADMIN_CLAIM=groups
      # - OIDC_ADMIN_VALUE=app-trek-admins
    volumes:
      - ./data:/app/data
      - ./uploads:/app/uploads
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "wget", "-qO-", "http://localhost:3000/api/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 15s

Then:

`1`	`docker compose up -d`

HTTPS notes: FORCE_HTTPS=true is optional — it adds a 301 redirect, HSTS, CSP upgrade-insecure-requests, and forces the secure cookie flag. Only use it behind a TLS-terminating reverse proxy. TRUST_PROXY=1 tells the server how many proxies sit in front so real client IPs and X-Forwarded-Proto work.

Helm (Kubernetes)

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helm repo add trek https://mauriceboe.github.io/TREK
helm repo update
helm install trek trek/trek

See charts/README.md for values.

Install as App (PWA)

TREK works as a Progressive Web App — no App Store needed.

Open TREK in the browser (HTTPS required)
iOS: Share ▸ Add to Home Screen
Android: Menu ▸ Install app (or Add to Home Screen)

TREK then launches fullscreen with its own icon, just like a native app.

Updating

Docker Compose:

`1`	`docker compose pull && docker compose up -d`

Docker run — reuse the original volume paths:

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docker pull mauriceboe/trek
docker rm -f trek
docker run -d --name trek -p 3000:3000 -v ./data:/app/data -v ./uploads:/app/uploads --restart unless-stopped mauriceboe/trek

Not sure which paths you used? docker inspect trek --format '{{json .Mounts}}' before removing the container.

Your data stays in the mounted data and uploads volumes — updates never touch it.

[!IMPORTANT] Mount only the data and uploads directories — -v ./data:/app/data -v ./uploads:/app/uploads. Never mount a volume at /app. Doing so hides the application code shipped in the image and the container fails to start with Cannot find module 'tsconfig-paths/register'. If you previously mounted /app, switch to the two mounts above; your data in data/ and uploads/ is preserved.

Rotating the Encryption Key

If you need to rotate ENCRYPTION_KEY (e.g. upgrading from a version that derived encryption from JWT_SECRET):

`1`	`docker exec -it trek node --import tsx scripts/migrate-encryption.ts`

The script creates a timestamped DB backup before making changes and prompts for old + new keys (input is not echoed).

Reverse Proxy

For production, put TREK behind a TLS-terminating reverse proxy. TREK uses WebSockets for real-time sync, so the proxy must support WebSocket upgrades on /ws.

Nginx

server {
    listen 80;
    server_name trek.yourdomain.com;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name trek.yourdomain.com;

    ssl_certificate     /etc/ssl/fullchain.pem;
    ssl_certificate_key /etc/ssl/privkey.pem;

    # 500 MB covers backup-restore uploads (capped at 500 MB server-side).
    client_max_body_size 500m;

    location / {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /ws {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_read_timeout 86400;
    }
}

Caddy

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trek.yourdomain.com {
    reverse_proxy localhost:3000
}

Caddy handles TLS and WebSockets automatically.

Environment variables

Full reference

Variable	Description	Default
Core
`PORT`	Server port	`3000`
`NODE_ENV`	Environment (`production` / `development`)	`production`
`ENCRYPTION_KEY`	At-rest encryption key for stored secrets (API keys, MFA, SMTP, OIDC). Recommended: generate with `openssl rand -hex 32`. If unset, falls back to `data/.jwt_secret` (existing installs) or auto-generates a key (fresh installs).	Auto
`TZ`	Timezone for logs, reminders and cron jobs (e.g. `Europe/Berlin`)	`UTC`
`LOG_LEVEL`	`info` = concise user actions, `debug` = verbose details	`info`
`DEFAULT_LANGUAGE`	Default language on the login page for users with no saved preference. Browser/OS language is auto-detected first; this is the fallback. Supported: `de`, `en`, `es`, `fr`, `hu`, `nl`, `br`, `cs`, `pl`, `ru`, `zh`, `zh-TW`, `it`, `ar`, `id`, `tr`, `ja`, `ko`, `uk`, `gr`	`en`
`ALLOWED_ORIGINS`	Comma-separated origins for CORS and email links	same-origin
`FORCE_HTTPS`	Optional. When `true`: 301-redirects HTTP to HTTPS, sends HSTS, adds CSP `upgrade-insecure-requests`, forces the session cookie `secure` flag. Useful behind a TLS-terminating reverse proxy. Requires `TRUST_PROXY`.	`false`
`HSTS_INCLUDE_SUBDOMAINS`	When `true`: adds the `includeSubDomains` directive to the HSTS header, extending HTTPS enforcement to all subdomains. Only effective when HSTS is active (`FORCE_HTTPS=true` or `NODE_ENV=production`). Leave `false` if you run other services on sibling subdomains over plain HTTP.	`false`
`COOKIE_SECURE`	Controls the `secure` flag on the `trek_session` cookie. Auto-derived: on when `NODE_ENV=production` or `FORCE_HTTPS=true`. Escape hatch: set `false` to allow session cookies over plain HTTP. Not recommended in production.	auto
`SESSION_DURATION`	How long a login session stays valid when “Remember me” is unchecked (the default): sets the `trek_session` JWT `exp` and issues a browser-session cookie (cleared when the browser closes). Accepts `ms`-style strings: `1h`, `12h`, `7d`, `30d`, `90d`. Invalid values warn at startup and fall back to the default.	`24h`
`SESSION_DURATION_REMEMBER`	Session length when “Remember me” is ticked at login: a longer-lived JWT plus a persistent `trek_session` cookie that survives browser restarts. Same format and startup-fallback behaviour as `SESSION_DURATION`.	`30d`
`TRUST_PROXY`	Number of trusted reverse proxies. Tells the server to read client IP from `X-Forwarded-For` and protocol from `X-Forwarded-Proto`. Defaults to `1` in production; off in dev unless set.	`1`
`ALLOW_INTERNAL_NETWORK`	Allow outbound requests to private/RFC-1918 IPs (e.g. Immich on your LAN). Loopback and link-local addresses remain blocked.	`false`
`APP_URL`	Public base URL of this instance (e.g. `https://trek.example.com`). Required when OIDC is enabled; used as base for email notification links.	—
OIDC / SSO
`OIDC_ISSUER`	OpenID Connect provider URL	—
`OIDC_CLIENT_ID`	OIDC client ID	—
`OIDC_CLIENT_SECRET`	OIDC client secret	—
`OIDC_DISPLAY_NAME`	Label shown on the SSO login button	`SSO`
`OIDC_ONLY`	Force SSO-only mode: disables password login + registration, regardless of Admin > Settings. The first SSO login becomes admin.	`false`
`OIDC_ADMIN_CLAIM`	OIDC claim used to identify admin users	—
`OIDC_ADMIN_VALUE`	Value of the OIDC claim that grants admin role	—
`OIDC_SCOPE`	Space-separated OIDC scopes. Fully replaces the default — always include `openid email profile`.	`openid email profile`
`OIDC_DISCOVERY_URL`	Override the auto-constructed OIDC discovery endpoint (e.g. Authentik: `.../application/o/trek/.well-known/openid-configuration`)	—
Initial setup
`ADMIN_EMAIL`	Email for the first admin on initial boot. Must be set together with `ADMIN_PASSWORD`. If either is omitted a random password is printed to the server log. No effect once a user exists.	`admin@trek.local`
`ADMIN_PASSWORD`	Password for the first admin on initial boot. Pairs with `ADMIN_EMAIL`.	random
Other
`DEMO_MODE`	Enable demo mode (hourly data resets)	`false`
`MCP_RATE_LIMIT`	Max MCP API requests per user per minute	`300`
`MCP_MAX_SESSION_PER_USER`	Max concurrent MCP sessions per user	`20`

Data & Backups

Database — SQLite, stored in ./data/travel.db
Uploads — stored in ./uploads/
Logs — ./data/logs/trek.log (auto-rotated)
Backups — create and restore via Admin Panel
Auto-Backups — configurable schedule and retention in Admin Panel

Data sources

The Atlas map’s country and sub-national (province/county) boundaries come from geoBoundaries (Runfola et al., 2020), licensed CC BY 4.0. See NOTICE.md for full third-party attributions.

License

TREK is AGPL v3. Self-host freely for personal or internal company use. If you modify and offer TREK as a network service to third parties, your modifications must be open-sourced under the same licence.

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