It’s hard to go back after using haml and slim for some time. Yes, there are implementations for Elixir and Phoenix. For the first more serious project in Phoenix I currently chose phoenix-slme. Seems to work so far but I would prefer to know if this doesn’t come with some unpleasant performance surprises later on. Been there, seen that. Luckily in Rails world slim is on a par with the default erb and hamlit (a faster reimplementation of haml) is also more than good enough. It was the original haml that bit me once.
