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Gaëtan Gilbert

PROFILE

Gaëtan Gilbert

Gaetan Gilbert engineered and maintained build and packaging workflows for the coq/opam repository, focusing on stability, portability, and modernization across the Rocq Prover ecosystem. He implemented relocatable builds, standardized opam metadata, and aligned dependencies to support evolving Coq and Rocq components, using technologies such as Make, Shell scripting, and OCaml. Gaetan addressed build reproducibility and CI reliability by refining configuration hygiene, decoupling dependencies, and introducing compatibility layers. His work included formal verification support and proof engineering, ensuring seamless onboarding and maintainability. The depth of his contributions is reflected in robust, reproducible development environments and streamlined release processes.

Overall Statistics

Feature vs Bugs

71%Features

Repository Contributions

23Total
Bugs
4
Commits
23
Features
10
Lines of code
803
Activity Months10

Work History

October 2025

2 Commits • 1 Features

Oct 1, 2025

In 2025-10, delivered targeted improvements in coq/opam to boost build portability and stability. Implemented relocatable builds for rocq-runtime.dev and added a dependency safeguard to pin Menhir for coq-compcert.dev, reducing breakages across environments and CI.

September 2025

1 Commits • 1 Features

Sep 1, 2025

Monthly summary for 2025-09 focusing on coq/opam work: Key feature delivered: Build Configuration Cleanup removing the defunct '-mandir' option from rocq-runtime.dev opam. No major bugs fixed this month. Impact: Simplified build configuration, reduced future maintenance, and alignment with dune-based workflow, improving pipeline reliability and contributor onboarding. Technologies/skills demonstrated: opam configuration hygiene, dune migration alignment, commit hygiene, repository maintenance.

July 2025

4 Commits • 1 Features

Jul 1, 2025

Month: 2025-07 — Focused on Opam packaging standardization and dependency updates across rocq-* packages in coq/opam. Completed cross-package metadata consolidation, removed dev-version fields, and updated constraints to improve compatibility and packaging reliability. Notable commits include removing dune 3.14 upper bound, removing version fields from 9.1.dev packages, updating rocq-elpi.dev, and removing rocq-prover dep.

June 2025

1 Commits • 1 Features

Jun 1, 2025

In June 2025, Rocq Prover packaging work in the coq/opam repository focused on release readiness and rename compatibility for the 9.1.dev cycle. Packaging definitions and configurations were added for core components (coq-core, coqide-server, rocq-core, rocq-devtools, rocq-prover, rocq-runtime) and aligned with the renaming from Coq to Rocq Prover. No major bug fixes were required this month; activity centered on packaging stability, release automation groundwork, and ecosystem alignment.

May 2025

2 Commits • 1 Features

May 1, 2025

May 2025 monthly summary for coq/opam: Focused on stabilizing and modernizing opam packaging for the Coq-metacoq integration within the coq/opam repository. Delivered packaging modernization that standardizes opam metadata to prevent spurious recompilations and introduced a compatibility layer for Coq-metacoq development definitions by replacing dependencies with rocq-metarocq packages and removing build/install sections. This work improves build reproducibility, reduces CI noise, and simplifies downstream maintenance. No major bugs fixed this month; the emphasis was on groundwork and stability to enable smoother future releases.

April 2025

5 Commits • 2 Features

Apr 1, 2025

In April 2025, delivered targeted improvements across coq/opam and perennial to stabilize development tooling and improve cross-repo compatibility. Key outcomes include decoupling development tooling from rocq-prover, cleaning up packaging, updating OCaml tooling requirements, and encapsulating solve_unsafe in SetSolveUnsafe with an adapted Ltac2 solver, aligning with upstream rocq-prover changes. These changes reduce maintenance burden, speed onboarding, and enable faster iteration on core verification tooling.

February 2025

3 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for coq/opam focusing on build workflow improvements and dependency alignment to support benchmarking-ready rocq-stdlib.dev and stable dev environments. Implemented a makefile-based build path and ensured proper packaging and install steps, alongside aligning opam dependencies for correct linking.

January 2025

1 Commits

Jan 1, 2025

January 2025 monthly summary: Focused on improving build reliability for coq/opam. No new features released. Major bug fix implemented to derive the package name from the opam file instead of hardcoding 'rocq', preventing mismatches during builds. Commit 1a8c982aa6fcb27da0b1feba64651e10726ffd19. Impact: more reliable CI, easier maintenance, and alignment with opam metadata. Technologies/skills: opam metadata, build script improvements, scripting discipline, and packaging integrity.

December 2024

3 Commits • 2 Features

Dec 1, 2024

Concise monthly summary for 2024-12 focusing on business value and technical achievements for coq/opam.

November 2024

1 Commits

Nov 1, 2024

November 2024: Stabilized the opam-based Coq development workflow by delivering a critical build environment configuration fix to COQ_SPLIT=1 for the coq/opam repository. The change ensures the dunestrap build and development environment can be built reliably after upstream Coq changes, reducing local dev and CI failures and maintaining engineering velocity.

Activity

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Quality Metrics

Correctness89.6%
Maintainability90.4%
Architecture86.0%
Performance83.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

CoqMakeOCamlOcamlShellYAMLopam

Technical Skills

Build System ConfigurationBuild System ManagementBuild SystemsCI/CDDependency ManagementDevOpsFormal VerificationMakefilePackage ManagementProof EngineeringShell Scriptingpackage management

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

coq/opam

Nov 2024 Oct 2025
10 Months active

Languages Used

ShellOcamlYAMLMakeOCamlopam

Technical Skills

Build SystemsDevOpsBuild System ConfigurationCI/CDPackage ManagementDependency Management

mit-pdos/perennial

Apr 2025 Apr 2025
1 Month active

Languages Used

Coq

Technical Skills

Formal VerificationProof Engineering

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