I'm writing a project in ConTeXt MKIV and I want to load some (pure) Lua
libraries and bindings (defining \ctxlua and the like). For instance, I
have the file foo.lua with some macros and I want to use them in my
project. Something like this:

\startproject project
%\component foo.lua %This does not work
%\environment foo.lua %This does not work
%\input foo.lua %This does not work
%\directlua{dofile("foo.lua")} %This does not work even when the project
file and foo.lua are in the same folder.
\stopproject

What should I do? Thank you in advance.