Default release build is the empty-shell IPA — model files live under Models/ for local development but are no longer copied into the .app bundle. Users still download Gemma weights at first launch via the in-app downloader (ModelScope / hf-mirror / huggingface.co fallback). Keep PBXFileReference + group children so Models/ stays browsable in Xcode, but remove the BuildFile entry from PBXResourcesBuildPhase. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>