BUILD_SPEED.md

0.9s Tauri Builds

28s → 0.9s (30x faster)

The Trick

Skip debug symbols for dependencies:

[profile.dev.package."*"]
opt-level = 1
debug = false

Complete Setup

1. Separate rust-analyzer cache (prevents file locks)

   // .vscode/settings.json
   { "rust-analyzer.cargo.targetDir": "target/analyzer" }

2. Optimize dependencies only

   # Cargo.toml
   [profile.dev]
   opt-level = 0
   debug = true
   
   [profile.dev.package."*"]
   opt-level = 1
   debug = false

3. Fix macOS deployment target (stops env var rebuilds)

Trade-offs

✅ 0.9s rebuilds
❌ No dependency debugging (use --profile dev-full when needed)
❌ Extra disk space (two target dirs)

Need to Debug Dependencies?

cargo build --profile dev-full