Summary

• switch all workspace package typecheck scripts to the pinned TypeScript native preview (tsgo)
• load Vite client types while preserving the existing SVGR declaration precedence
• persist Typecheck Turbo results and avoid restoring the Rust cache when the native Turbo cache hits
• run Playwright GPU and Perf as separate parallel macOS jobs on nightly schedules and manual runs
• keep Engine Benchmarks on PR/main path-filtered runs and manual dispatches

Typecheck timing

Uncached direct desktop config runs on this machine:

• tsc --noEmit -p apps/desktop/tsconfig.build.json: 16.10s
• tsgo --noEmit -p apps/desktop/tsconfig.build.json: 3.87s

That is approximately a 4.2x speedup.

Validation

• pnpm install --frozen-lockfile
• pnpm typecheck
• pnpm lint:check
• pnpm format:check
• pnpm test:unit
• actionlint .github/workflows/ci.yml .github/workflows/perf.yml
• commit hooks, including strict dead-code checks and the full Vitest suite

All passed. The local Nix Node environment required adding its SQLite library directory to LD_LIBRARY_PATH for native bridge tests.