- Rewrite frontend/src/views/Patcher.vue around library ROM/patch pickers
(v-autocomplete with debounced search) and call POST /api/roms/{id}/patch
with responseType: blob; download and/or re-upload the patched output.
- Drop the rom-patcher npm dep and vite-plugin-static-copy from the frontend;
remove the now-unused web worker, type decls, and viteStaticCopy plugin.
- Move the Node patcher into a self-contained npm project at
backend/utils/rom_patcher/ (dir uses underscore so it's a valid Python
package). Patcher.js loads RomPatcher.js from its sibling node_modules.
- Extract the heavy subprocess logic into backend/utils/rom_patcher/patcher.py
(apply_patch, PatcherError, SUPPORTED_PATCH_EXTENSIONS); slim patch.py to
HTTP/DB plumbing and fix a stale .parent.parent path.
- Wire up Docker: dev Dockerfile installs the new npm project; prod
Dockerfile adds a backend-node-build stage and copies rom-patcher-js into
the production image; install nodejs at runtime.
- Add new patcher i18n keys to en_US (other locales fall back).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The previous attempt to upgrade RALibretro before a new tagged version
was available (#1970) needed to be reverted, as the RAHasher tool failed
with segmentation faults in some scenarios.
