image.uk.app modifications, 2026-09-23, LGPL-3.0:
heic-to.js is a readable replacement wrapper using a self-hosted module worker, a 60 second timeout, and worker termination per image. worker.js is upstream src/worker.js with a relative import, self.onmessage, and a 40 megapixel guard before ImageData allocation. libheif.js is the unmodified upstream src/lib/libheif-without-unsafe-eval.js. These three JavaScript files are their own preferred editable sources, with no build step needed. Original sources, build scripts and dependency sources are in sources/.