justrust

Ultra fast Rust compile for coding agents.

Rebuilding every step of the Rust build toolchain from scratch to be faster, more parallelizable, and more cacheable.

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justrust is rebuilding every step of the Rust build toolchain from scratch, with a goal of 100–1,000× faster builds through more parallelism, finer-grained caching, and less redundant work.

The released client makes the edit, check, and test loop faster locally or with our remote build service while the new toolchain takes shape.

Your coding agents spend valuable time waiting for Rust checks, builds, and tests. Running those operations locally can slow down your machine, drive up CPU usage, temperature, and RAM consumption, and fill your disk with build artifacts. Our remote service offloads compilation, test execution, and build artifact storage to our machines, freeing up yours.

Each build command also returns actionable diagnostics, showing agents where time went, why crates rebuilt, and which…