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Steam: open-source licences list and GPL/LGPL check #149
Description
Part of #142 · Milestone 1: Clean to sell · plan item 1.6
Size: S · Owner-only step: no
What
three.js and html2canvas (MIT) and the Firebase SDK (Apache 2.0) ask for their notices to ship with the game; Electron adds Chromium's. Steam needs Valve's agreement before shipping GPL/LGPL-licensed code; the known case is Electron's bundled ffmpeg (LGPL), which many Electron games on Steam ship.
Decision / recommendation
Generate an "Open-source licences" list under Credits & Copyrights at build time, and flag any GPL/LGPL; ask Valve about ffmpeg if in doubt.
Done when
- Licences list in the game
- A build-time check that fails on a new GPL/LGPL dependency
Plan page (owner only): https://claude.ai/artifact/Cf5SWQHzAKTy2uHCC1UQgw
Activity
ChefControl commentedon Oct 27, 2026
Web build part in PR #209: the licences list under Credits & Copyrights, licences.txt, and a build check that fails on GPL/LGPL/AGPL or unknown licences (allowlist: APPROVED in tools/licences.ts).
Still open here, once the Electron wrapper (#159) exists: Electron's and Chromium's notices and ffmpeg (LGPL) handed to the generator as extra notices, Valve's agreement for ffmpeg, then an APPROVED entry. What the wrapper must do is listed in a comment on #159.
Licences: the script joins scripts/, and the README, LICENSE and guid…