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ocaml-dune-migration

Migrate OCaml builds from ocamlbuild/topkg to dune.

35|9|Updated Dec 25, 2025
Search Tags:#migration#build-system#opam#ocaml#dune#topkg#ocamlbuild
One-click install
npx skills add https://github.com/avsm/ocaml-claude-marketplace --skill ocaml-dune-migration-avsm
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ocaml-dune-migration
Source: https://github.com/avsm/ocaml-claude-marketplace/tree/main/plugins/ocaml-dev/skills/ocaml-dune-migration
Command: npx skills add https://github.com/avsm/ocaml-claude-marketplace --skill ocaml-dune-migration-avsm

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Migrates OCaml builds from legacy ocamlbuild/topkg environments to the modern dune-based workflow, simplifying project migrations and reducing maintenance burden.

Core Features & Use Cases

  • Automates migration of build configurations (_tags, *.mllib, pkg.ml, and META) to corresponding dune stanzas and project structure.
  • Generates a dune-project and per-library library blocks, including handling optional dependencies and toplevel init files.
  • Provides guidance for updating opam metadata and related tooling to align with dune-based builds, ensuring smooth CI and package publishing.

Quick Start

Run the migration workflow to convert an OCaml project from ocamlbuild/topkg to dune.

Frequently Asked Questions about ocaml-dune-migration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate an OCaml project from ocamlbuild to dune?▼

Migrating from ocamlbuild to dune involves converting _tags, .mllib, and pkg.ml files into dune-project and per-library dune stanzas. This workflow automates configuration translation, handles optional dependencies, and updates opam metadata for CI and package publishing.

What does topkg to dune migration require for OCaml builds?▼

Migrating topkg to dune requires translating topkg metadata and pkg.ml files into dune-project configurations and library blocks. The process updates opam files and test configurations to align with dune-based builds, reducing legacy maintenance burden.

Can I automatically generate dune stanzas from existing _tags and META files?▼

Yes, you can automatically generate dune stanzas from existing _tags and META files. The migration workflow translates legacy ocamlbuild configurations into per-library dune stanzas, including handling optional dependencies and toplevel init files.

How do I handle optional dependencies when migrating to dune?▼

Handling optional dependencies when migrating to dune is managed within generated per-library dune stanzas. The migration process translates existing topkg and ocamlbuild configurations, ensuring optional dependencies and test configurations are correctly structured.

Does dune migration update opam files for OCaml libraries?▼

Yes, dune migration updates opam files for OCaml libraries. The workflow provides guidance for updating opam metadata and related tooling to align with dune-based builds, ensuring smooth CI integration and package publishing.

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