Why should this be included in the repository? Because it makes installing dependencies for Lua much easier. It's a real pain to do this without luarocks.
Is it Open Source: yes
Who and how many users do you anticipate will use this software? Most Lua developers
Link to source: https://github.com/luarocks/luarocks/archive/v3.0.4.tar.gz
I will maintain it if it gets accepted.