Composer vs LuaRocks

Composer manages dependencies for PHP projects, installing and updating the libraries each project declares. By default, it keeps those dependencies in a directory within the project, and it can also manage a global project. It resolves dependencies and supports lockfiles, workspaces, private registry authentication, and offline installation. Packagist is its default package source; custom Composer, version-control, and local-path repositories are also supported. Composer integrates with Fossil, Git, Mercurial, Perforce, and Subversion. It can be installed locally or as a system-wide executable on Windows, Linux, and macOS. The latest version requires PHP 7.2.5 or later; the 2.2.x LTS line supports PHP 5.3.2 and later. Its audit command checks installed packages for security advisories, abandoned packages, malware flags, and other dependency policies. Composer is free under the MIT license. Plugins and scripts can run with the user's permissions, so the project advises against running Composer as root with untrusted packages.

LuaRocks is a package manager for Lua, with LuaRocks.org hosting rocks and rockspecs for Lua modules. Its command line uses manifests to find packages, choose a version and platform match, and install the corresponding files locally. Rocks carry version dependency information, which LuaRocks uses to install dependencies and load the appropriate module version. Package collections can be organized through the root manifest, per-user manifests, or custom manifests; development versions are kept in a separate manifest and are not installed by default. LuaRocks supports offline installation and platforms including Linux, macOS, Windows, Unix, FreeBSD, and Cygwin. Module authors can register and upload a rockspec, then publish rock files for a version; the current release supports the `luarocks upload` command. The application is described as pure Lua with no library dependencies, though its current release uses helper tools. LuaRocks is free, with a listed price of free.