Your builds are failing due to a build infrastructure caching issue, not a problem with your code or config.

The problem: Railpack is skipping the mise package installation step that should install bun and node. When the build command runs (bun run --filter '@wapchill/backend' build), the bun binary isn't there, so it fails with bun: not found (exit code 127).

Why it's happening: A stale cache layer in the Railpack build process is causing the mise installation to be skipped. Your last successful build was May 19 (commit 46f5c68c), which correctly installed mise packages. Every build since then has skipped that step entirely — despite no code or config changes on your end