OPAM stands for OCaml PAckage Manager.
It aims to suit to a vast number of users and use cases,
and has unique features:

* Powerful handling of dependencies:
  versions constraints, optional dependencies, conflicts, etc.
* Multiple repositories backends: HTTP, rsync, git
* Ease to create packages and repositories
* Ability to switch between different compiler versions

Typically, OPAM will probably make your life easier if you recognize
yourself in at least one of these profiles:

* You use multiple versions of the OCaml compiler, or you hack the
  compiler yourself and needs to frequently switch between compiler
  versions.
* You use or develop software that needs a specific and/or modified
  version of the OCaml compiler to be installed.
* You use or develop software that depends on a specific version of an
  OCaml library, or you just want to install a specific version of a
  package, not just the latest one.
* You want to create your own packages yourself, put them on your own
  repository, with minimal effort.

• Anton Farygin

• opam
• opam-debuginfo
• opam-doc