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Fast Rust dev loop for real projects:

• doctor checks your local toolchain (sccache, mold, etc.)
• init generates optional .cargo/config.toml for faster builds
• watch reruns cargo check/test/run on file changes
• check/test/run wrappers apply opt-in fast env defaults

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cargo install cargo-fastdev

cargo fastdev doctor
cargo fastdev init --print

# write .cargo/config.toml (opt-in)
cargo fastdev init --write

# fast loop
cargo fastdev watch check
cargo fastdev watch test
cargo fastdev watch run -- --bin my_app

By default, cargo-fastdev is conservative:

• It does not modify your project unless you use init --write.
• It uses opt-in flags for more aggressive settings (wrapper/flags).

Prints detected tooling and suggestions:

cargo fastdev doctor --format json
cargo fastdev doctor

Generates .cargo/config.toml snippet:

cargo fastdev init --print
cargo fastdev init --write
cargo fastdev init --write --use-sccache --use-mold

Re-runs a cargo subcommand on changes:

cargo fastdev watch check
cargo fastdev watch test
cargo fastdev watch run -- --example hello

- run: cargo install cargo-fastdev
- run: cargo fastdev doctor
- run: cargo fastdev check

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Apache-2.0. See LICENSE and NOTICE. Trademarks: see TRADEMARKS.md.