Open-source licenses
Last updated: 26 October 2026
Jam Along is proprietary software (Copyright © 2026 Yahav Vardi, all rights reserved). It includes the open-source components below, used under their licences. We thank their authors. Full licence texts are in each project's repository.
Website, /sing coach and browser extension
| Package | Version | License |
|---|---|---|
| @fontsource-variable/figtree | 5.3.0 | OFL-1.1 |
| @fontsource-variable/jetbrains-mono | 5.3.0 | OFL-1.1 |
| @img/colour | 1.1.0 | MIT |
| @img/sharp-libvips-linux-x64 | 1.3.4 | LGPL-3.0-or-later |
| @img/sharp-linux-x64 | 0.35.5 | Apache-2.0 |
| @next/env | 16.4.3 | MIT |
| @next/swc-linux-x64-gnu | 16.4.3 | MIT |
| @swc/helpers | 0.5.23 | Apache-2.0 |
| @vercel/analytics | 2.0.1 | MIT |
| baseline-browser-mapping | 2.11.3 | Apache-2.0 |
| caniuse-lite | 1.0.30001806 | CC-BY-4.0 |
| client-only | 0.0.1 | MIT |
| detect-libc | 2.1.2 | Apache-2.0 |
| nanoid | 3.3.20 | MIT |
| next | 16.4.3 | MIT |
| picocolors | 1.1.1 | ISC |
| postcss | 8.5.23 | MIT |
| react | 19.3.1 | MIT |
| react-dom | 19.3.1 | MIT |
| scheduler | 0.28.0 | MIT |
| semver | 7.8.5 | ISC |
| sharp | 0.35.5 | Apache-2.0 |
| source-map-js | 1.2.2 | BSD-3-Clause |
| styled-jsx | 5.1.6 | MIT |
| tslib | 2.8.1 | 0BSD |
| Figtree (font) | n/a | SIL Open Font License 1.1 |
| JetBrains Mono (font) | n/a | SIL Open Font License 1.1 |
| Inter (font, store images) | n/a | SIL Open Font License 1.1 |
Android app
The Android app uses only the Android SDK (Apache License 2.0) and the system WebView. It has no third-party libraries.
Data sources
- Synced lyrics: lrclib.net, shown a line at a time with attribution.
- Key and colour estimation: Apple iTunes Search API, used transiently and never displayed or redistributed.