
Over four months, Larchey developed and maintained a suite of formal verification libraries in the coq/opam repository, focusing on Kruskal-related theorems and Almost Full (AF) relations. He consolidated and upgraded multiple Coq libraries, introduced new tooling for AF relations, and ensured compatibility across Coq versions by refining OPAM packaging and dependency management. Using OCaml, Coq, and GitHub Actions, Larchey automated release workflows and improved reproducibility for downstream users. His work formalized advanced data structures and theorems, addressed compatibility issues, and established a scalable framework for future extensions, demonstrating depth in formal methods, package management, and continuous integration practices.
Concise monthly summary for 2026-03 focusing on key accomplishments, business value, and technical achievements for the coq/opam repository.
Concise monthly summary for 2026-03 focusing on key accomplishments, business value, and technical achievements for the coq/opam repository.
December 2025: Delivered a formalization suite for AF relations and the Kruskal tree theorem in the coq/opam repository. Consolidated new Coq libraries and tooling for Almost Full (AF) relations, including Kruskal-Fan, Higman’s lemma-based AF tooling, and a constructive proof of the tree theorem; packaged as an OPAM package and established a scalable framework for formalizing high-level variants of tree theorems.
December 2025: Delivered a formalization suite for AF relations and the Kruskal tree theorem in the coq/opam repository. Consolidated new Coq libraries and tooling for Almost Full (AF) relations, including Kruskal-Fan, Higman’s lemma-based AF tooling, and a constructive proof of the tree theorem; packaged as an OPAM package and established a scalable framework for formalizing high-level variants of tree theorems.
Month: 2025-11 — Key outcomes: Delivered Coq Ecosystem Enhancements in coq/opam by integrating GitHub Release for packages and documentation, and added two new libraries (Kruskal-Finite and Kruskal-AlmostFull) with versioned compatibility (v2.0; Rocq 9.0/9.1). This work improves release automation, reproducibility, and downstream consumption of Coq artifacts; no major bugs reported this month. Technologies/skills demonstrated include GitHub Releases automation, Coq library development, versioned compatibility, and packaging workflow.
Month: 2025-11 — Key outcomes: Delivered Coq Ecosystem Enhancements in coq/opam by integrating GitHub Release for packages and documentation, and added two new libraries (Kruskal-Finite and Kruskal-AlmostFull) with versioned compatibility (v2.0; Rocq 9.0/9.1). This work improves release automation, reproducibility, and downstream consumption of Coq artifacts; no major bugs reported this month. Technologies/skills demonstrated include GitHub Releases automation, Coq library development, versioned compatibility, and packaging workflow.
Executive summary for 2024-11: Consolidated the Kruskal-related packaging in the coq/opam repository by delivering new libraries, updating core Kruskal components, and ensuring cross-version compatibility. Implemented opam packaging improvements and release metadata to streamline distribution. Three focused commits finalize updates and prepare releases for deeper ecosystem adoption. No critical bugs reported; packaging and compatibility work enhances stability and upgrade.path for downstream projects.
Executive summary for 2024-11: Consolidated the Kruskal-related packaging in the coq/opam repository by delivering new libraries, updating core Kruskal components, and ensuring cross-version compatibility. Implemented opam packaging improvements and release metadata to streamline distribution. Three focused commits finalize updates and prepare releases for deeper ecosystem adoption. No critical bugs reported; packaging and compatibility work enhances stability and upgrade.path for downstream projects.

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