Recommended solution to run Lua scripts with Nginx?

[Gilles Ganault <gilles.ganault@...>]

Hello

I'm running Debian and Nginx on a Linux appliance, and would like to
use Lua for form validation to avoid the fat of PHP or Python.

Apparently, there are two ways to use Lua with Nginx:
- run scripts through CGI
- use the ngx_lua module that seems to embed the Lua interpreter
within Nginx

Is this correct? What would you recommend as a lean and mean solution
to validate forms with good-enough protection against spammers?

FWIW, here are the packages available from the depot:
www.pastebin.com/raw.php?i=qT7KAmKj

Thank you.