The builder stage runs on the build platform and cross-compiles Rust,
with GCC cross compilers for bundled SQLite, so only the small runtime
stage runs under QEMU. The workflow sets up QEMU via the Docker Hub
mirror and pushes all three platforms under the same tags.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Go 1.25 ServeMux redirects unclean paths with 301, while newer Go (and the
Rust port that mirrors it) uses 307, so the Go reference built in CI
disagreed with Rust on '/a/../app.js'.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>