MetalNX v2.2.0 — Scratch Drive Customization, Pre-Flight Doctor & Storage Manager

What's New in MetalNX v2.2.0

This release introduces three high-impact features engineered for seamless Mac porting and storage transparency:

1. Configurable Scratch / Build Directory (--work-dir):

   • Compiling large Switch titles requires intermediate staging for RomFS extraction, decompressed NSPs, and shader bases (2 × NSP + 10 GB).
   • Users can now select an External SSD or secondary drive for the intermediate build directory, completely separate from the final .app destination.
   • Includes a one-click "Purge Build Cache" button directly in the porting view to immediately reclaim disk space once a port is generated.

2. Pre-Flight Toolchain Doctor:

   • Automatically runs diagnostic pre-flight checks before the user clicks "1-Click Compile":
     • Apple Metal Toolchain (MSL): Verifies the Metal compiler and SDK (xcrun -f metal).
     • Disk Capacity vs. Required Space: Calculates exact required space dynamically (2 × total NSP size + 10 GB buffer) against the available free space on the chosen scratch volume, warning users with actionable advice before compile-time disk exhaustion occurs.
     • 72-Game Recipe & Version Certification: Compares package title ID and update version against the tested database, showing whether the release is officially certified or will use provisional heuristic derivation.

3. Storage & Toolchain Manager (One-Click Cleanup / Uninstaller):

   • Non-developer Mac gamers get complete transparency with a dedicated Storage & Toolchain Manager sheet accessible from the toolbar.
   • Shows itemized real-time storage breakdowns across:
     • Build Caches & Scratch Files
     • Engine Workspaces & Clones
     • Standalone Toolchains & uv Virtual Environments
     • Telemetry & Crash Logs
   • Offers individual category purges and a "Wipe All & Clean Uninstall" option for a complete clean slate.