v0.1.0
Chrome MV3 extension, browser-resident sibling to rangerhq-radio (WP plugin). Plays SomaFM via the chrome.offscreen API + a source- adapter pattern at src/sources/. Architecture highlights: - Audio runs in offscreen document — SW would get killed. - Source-adapter pattern locks Tier 1 contract (RadioSource interface in src/sources/base-source.js). Adding a network = drop a file + register one line in src/sources/index.js. - Vanilla JS, no build step. Pure ES modules. - No telemetry, no third-party JS. Outbound only to somafm.com. - Narrow permissions: offscreen + storage + somafm.com host_perms. No tabs, no <all_urls>, no webRequest. 22 files, ~30 min build following the saved plan at ~/.ranger-memory/projects/rangerhq-tuner-plan.md. Tier 2 + Tier 3 (Web Store submission) not started.
RangerHQ Tuner
Lightweight indie internet radio player for Chrome. Plays SomaFM in any browser tab. Manifest V3, vanilla JS, no telemetry.
Sibling to rangerhq-radio (the WordPress version).
Tier 1 — MVP (current)
- ✅ Manifest V3 + Offscreen API audio
- ✅ Loads all SomaFM channels from
channels.json - ✅ Pick a station, click Play, audio runs in background
- ✅ Volume + state persisted across popup open/close
- ✅ Catalogue cached 6h in
chrome.storage.local - ✅ Source-adapter pattern in place for future networks
Install (developer mode)
- Open
chrome://extensions - Toggle Developer mode on (top right)
- Click Load unpacked → pick this folder (
rangerhq-tuner/) - Pin the extension to your toolbar (puzzle icon → pin)
- Click the toolbar icon → pick a SomaFM station → ▶ Play
Project layout
rangerhq-tuner/
├── manifest.json
└── src/
├── background/service-worker.js # message router, no audio here
├── offscreen/offscreen.{html,js} # the <audio> element host (MV3 needs this)
├── popup/popup.{html,css,js} # the toolbar UI
├── sources/ # extensibility seam
│ ├── base-source.js # RadioSource interface (JSDoc)
│ ├── somafm.js # first concrete adapter
│ └── index.js # registry
├── lib/ # shared utilities
└── assets/icons/ # 16/32/48/128 PNGs
License
GPL-2.0-or-later — matches the rest of the RangerHQ family.
Releases
6
Languages
JavaScript
58.3%
CSS
31.4%
HTML
10.3%