I was going to answer, but the other comments already did :)
Though most of it right now is just learning material for people new to Common Lisp, the project is actually for lispers of any level.
I have no idea what the relationship between Brazil and Portugal is like these days but I wonder if it'd be possible to get members/resources/support/tips from SISCOG? I read somewhere that they might be the biggest Common Lisp employer, though I have no idea if they do anything for the broader community...