
Yves Bertot contributed to the coq/opam repository by developing and maintaining OPAM packaging for Coq plugins and libraries, focusing on dependency management and cross-version compatibility. He built tools such as Coq-DPDGraph for visualizing Coq object dependencies and introduced packages like coq-semantics and rocq-semantics to support proof development workflows. Using OCaml and formal methods, Yves ensured that packaging metadata, build instructions, and version constraints aligned with evolving Coq and Rocq toolchains. His work emphasized reproducible builds, streamlined onboarding, and reduced integration friction, demonstrating a deep understanding of package management, functional programming, and the needs of the Coq ecosystem.
February 2026 — coq/opam: Delivered packaging and compatibility enhancements for the Coq-semantics ecosystem. Implemented a new opam file for coq-semantics v8.19.1 and updated rocq-semantics to v9.0.0, broadening compatibility with latest Coq and Rocq and enabling more semantics styles and tooling. Established a working version matrix across Coq/Rocq versions (commit cc811b509e0aa90fd4bd9edc0e3fe192eebf14ac). No major bugs fixed this month; focus was on stability, reproducible builds, and reducing setup friction. Technologies demonstrated: opam packaging, cross-version compatibility, dependency management, and semantic tooling readiness.
February 2026 — coq/opam: Delivered packaging and compatibility enhancements for the Coq-semantics ecosystem. Implemented a new opam file for coq-semantics v8.19.1 and updated rocq-semantics to v9.0.0, broadening compatibility with latest Coq and Rocq and enabling more semantics styles and tooling. Established a working version matrix across Coq/Rocq versions (commit cc811b509e0aa90fd4bd9edc0e3fe192eebf14ac). No major bugs fixed this month; focus was on stability, reproducible builds, and reducing setup friction. Technologies demonstrated: opam packaging, cross-version compatibility, dependency management, and semantic tooling readiness.
December 2025 performance summary focusing on key accomplishments: Delivered a new Coq Dependency Visualization Plugin for coq/opam, enabling automated computation of dependencies between Coq objects and generation of visual graphs. This provides clearer insight into project structure, accelerates onboarding, and reduces integration risk for complex Coq projects. No major bugs were fixed this month; minor maintenance tasks and preparation for broader deployment were completed. Key commit: 4a3e787776d6fbeee2dcb40244a6bbbfe6821aa3 ('coq-dpdgraph for rocq-9.1 (#3597)').
December 2025 performance summary focusing on key accomplishments: Delivered a new Coq Dependency Visualization Plugin for coq/opam, enabling automated computation of dependencies between Coq objects and generation of visual graphs. This provides clearer insight into project structure, accelerates onboarding, and reduces integration risk for complex Coq projects. No major bugs were fixed this month; minor maintenance tasks and preparation for broader deployment were completed. Key commit: 4a3e787776d6fbeee2dcb40244a6bbbfe6821aa3 ('coq-dpdgraph for rocq-9.1 (#3597)').

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