Thanks. I'm currently using XeTeX/XeLaTeX due to its newer codebase, native Unicode support, OpenType fonts, PDF outputs, etc. But perhaps it is the time to try ConTeXt. I was struggling previously with Lua in Awesome window manager as I find (from a Python background) the syntax is weird, but now I think seriously need to pick up a serious textbook to learn Lua, the Lua engine is embedded in everything, learning it opens a new world.