OCaml Package Management with (only!) Dune

on YouTube ↗35m

" summary

Dune now solves and installs OCaml dependencies itself, pulling from the opam repo of ~4.5k packages and even building a compiler when needed; a demo builds a Hello World and a Dream web server, installs ocaml-lsp and ocamlformat via `dune tools install`, and uses per-package lock directory pinning to run a patched Dream on port 8081. The lock is currently nonportable by default, Dune package management runs on Linux/macOS only, and a few packages (including Dune itself) fail due to benign circular-dependency handling.

AI-written summary · about

" chapters (5)

1. 0:00OCaml package management intro
2. 2:29Dune package management demo
3. 10:07Lock directories in Dune
4. 18:51How Dune package management works
5. 27:41Dune package future & Q&A

" related talks

• 22mState of the OCaml Platform 2023Thomas Gazagnaire, Anil Madhavapeddy, David Allsopp, Thibaut Mattio · OCaml 2023
• 43mOCaml at LexiFiNicolás Ojeda Bär · FUN OCaml 2025
• 22mProject-wide occurrences for OCaml, a progress reportUlysse Gérard · OCaml 2024
• 19mHomogeneous builds with OBuilder and OCamlTim McGilchrist, Anil Madhavapeddy, Patrick Ferris, David Allsopp, Kate Deplaix, Antonin Décimo, Thomas Leonard · OCaml 2022
• 17mMemo: an incremental computation library that powers DuneAndrey Mokhov, Arseniy Alekseyev · OCaml 2022
• 17mSupporting a decade of opamDavid Allsopp, Raja Boujbel, Kate Deplaix, Louis Gesbert · OCaml 2022
• 26mBuck2 for OCaml Users & DevelopersNeil Mitchell, Shayne Fletcher · OCaml 2023
• 20mLess Power for More Learning: Restricting OCaml Features for Effective TeachingMax Lang, Nico Petzendorfer · OCaml 2023