PECOS

What the project is

PECOS is a Rust project hosted on GitHub. Software for exploring, developing, and evaluating quantum error-correction protocols. PECOS (Performance Estimator of Codes On Surfaces) is a framework/library for exploring, developing, and evaluating quantum error correction protocols and hybrid quantum-classical programs. The repository is maintained by PECOS-packages and tracks activity through its public issue tracker and commit history. Readers who want a working example rather than a bare library will find the documentation and the linked resources useful for getting a first build running.

What it offers

The PECOS repository documents several concrete capabilities that shape how people use it. Simulate quantum circuits using fast simulators ideal for error correction research Study quantum error correction codes with tools for syndrome extraction, decoding, and analysis Run hybrid quantum-classical programs with support for classical control flow, conditionals, and Wasm Add realistic noise to understand how errors affect your circuits Choose your backend : stabilizer simulation, state vector, or GPU-accelerated options These points are taken from the project README, so they reflect what the maintainers actually ship rather than marketing claims. Checking the file list and the example directories gives a fuller picture of how each piece fits together.

How to set it up

Getting PECOS running starts with cloning the source from https://github.com/PECOS-packages/PECOS. The README lists the commands needed to fetch the code and build or launch it. Representative steps from the documentation include: pip install quantum-pecos. After the code is on disk, the project instructions walk through configuration and any dependencies. Following the order shown in the README avoids the common setup mistakes that come from mixing steps.

License and project status

PECOS is written primarily in Rust and is released under the Apache-2.0 license, which sets the terms for reuse and redistribution. The project reports around 62 stars on GitHub, a signal of how many developers have bookmarked it. The source was last updated on 2026-08-21. The canonical location is https://github.com/PECOS-packages/PECOS, where the license file, the changelog and the open issues give the most current state of the work. Anyone planning to depend on it should read the license text directly before shipping it inside another product.

Editorial conclusion

The PECOS source lives at https://github.com/PECOS-packages/PECOS under the Apache-2.0 license and is mainly written in Rust. The README and the linked examples remain the place to confirm the current behaviour before adopting the project.