The APK carries rustc, the checkout and a packed target tree as LZ4
frames. First compile streams them out of the asset manager into files/
and shows progress on the desk; later launches skip unpack when the
stamp matches. App crates keep a desktop Cargo.toml — dynamic-module is
empty — and rustc `--extern force:` binds makepad_wm_engine already in
the process so widgets stay the host dylib.
libs/lz4 grows a streaming frame codec and a makepad-lz4 CLI; libs/tar
unpacks those frames without buffering the archive. Android Vulkan
records two in-flight repaints instead of waiting every pass, and the
capture Y-flip applies only on the OpenGL fallback.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>