Opam-installer is a small utility, part of Opam, that can interpret Opam's .install files and take the appropriate actions.

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