opam
OCaml Package Manager.
TLDR
Initialize opam for first use
$ opam init
Search for packages
$ opam search [package_name]
Install a package and all of its dependencies
$ opam install [package_name]
Display detailed information about a package
$ opam show [package_name]
List all installed packages
$ opam list
Update the local package database
$ opam update
Upgrade all installed packages
$ opam upgrade
Display all commands
$ opam help