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How We Migrated the Heart of Our Platform to Rust

ID: 3f70e9c6-c10c-57de-b588-7e45ace67c55

STIX ID: report--3f70e9c6-c10c-57de-b588-7e45ace67c55

Feed Name: Security Boulevard

Date Published: 2026-06-01

Date Updated: 2026-06-01

Author: Kevin Westphal

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**Executive summary:** This blog post describes GitGuardian's migration of their secret-detection engine from Python to Rust, explaining the incremental rewrite approach, use of pyo3 for Python bindings, discovery and resolution of a GIL-related performance bottleneck, measured performance improvements, and key lessons for safely migrating production systems.

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