For typesetting arabic with LaTeX there are
for typesetting arabic with XeLaTeX there are
but how to typeset arabic with LuaLaTeX, since neither of these packages/methods does not work? And there is definitely a way (with very nice results) as demonstrated in "Fonts" papers (PDF) from LuaTeX web page.
I've also found Khaled's lualatex-package package, but still no go.