Hobby Orbit
Explore your hobbies on a wheel and record moods, switches, and the things that draw you back
Overview
Put your changing interests on a wheel, explore the activities inside them, and
record what you are drawn to today. A spin offers a suggestion; an explicit
check-in records your choice, feeling, trigger, and notes. Your journal starts
empty and stays on your device.
Live: hobbyorbit.neorgon.com
Features
- Nested wheel -- Categories, outer activity bands, drill-in, zoom, and spins
- Your arrangement -- Add catalog or custom hobbies, reorder, change colors and icons
- Check-ins -- Choose a hobby or rest, describe a feeling, and add triggers and notes
- Lock in -- Keep the current hobby while continuing to explore suggestions
- Observed patterns -- Recorded sequences, transitions, moods, triggers, and seasons
- Private sharing -- Preview an update; notes are included only when selected
- Install and go offline -- Use the cached app after the first successful visit
- Keep a copy -- Full JSON backups, validated imports, and original-data recovery
Install and keep your data
Open Settings and choose Install app. On iPhone and iPad, use the browser's
Share menu and Add to Home Screen. Installation support depends on the browser;
the same app also works in a browser tab. See MDN's installation guide.
Offline access is ready when Settings says so. Updates wait for a deliberate reload.
Your wheel and journal live in this browser on this device, without an account or
device sync. Download a backup before clearing browser data or moving devices.
An import replaces the current device's wheel and journal after confirmation.
The six-category starter wheel is editable sample content. It is not a record of
your interests. The catalog reuses Aficion: 23
categories, 330 hobbies, and 178 deeper activities. Seasons use your check-ins'
recorded local dates and the hemisphere selected in Settings. Counts describe
what was recorded and do not claim to predict a switch or establish its cause.
Running locally
ES modules require an HTTP server (not file://):
make serve
Or manually:
python3 -m http.server 8901
Visit http://localhost:8901. No build or package installation is needed to run it.
node --test tests/model.test.mjs
node scripts/build-catalog.mjs # requires the sibling aficion-site checkout
node scripts/build-offline.mjs # refresh after changing app files or assets
node scripts/build-offline.mjs --check
The generated catalog and offline asset list are committed. Hosting serves these
files directly. The service worker caches the app, catalog, and canonical fleet
styles; it never stores or transmits journal contents. Usage analytics is disabled.
Architecture
hobbyorbit-site/
├── index.html # Persistent app shell and forms
├── data/catalog.json # Generated Aficion snapshot
├── css/ # App, wheel, and shared kit styles
├── js/
│ ├── app.js # Entry point
│ ├── model.js # Validated tree and journal mutations
│ ├── state.js # Local persistence and recovery
│ ├── wheel.js # SVG wheel controller
│ ├── render.js # View updates
│ ├── events.js # User actions
│ └── pwa.js # Install, updates, and current-hobby favicon
├── sw.js # Versioned offline shell
├── offline-assets.js # Generated cache manifest
├── scripts/ # Catalog and offline snapshot generators
└── tests/ # Model and storage invariants
