Gwern raised a point on #xmonad that is the thorn in this idea: Template Haskell. The ability to execute arbitrary Haskell code at compile time makes it hard to trust code arriving over the net. Gwern shot down several ideas for overcoming this, but the final one seems to work. I don't know much about TH, but it needs to be turned on via either a command-line switch (which won't be present, clearly) or a {-# LANGUAGE ... #-} or other pragma inside the xmonad.hs file. Unfortunately there are numerous ways to active the flag: {-# LANGUAGE TemplateHaskell #-} {-# GHC_OPTIONS -XTemplateHaskell #-} and probably a dozen more and more esoteric ways. But, there is no need I can see for any {-# ... #-} pragmas at all in xmonad.hs files. Some people's configs on the wiki use it, but apparently only for things like -Wall or -fno-warn-missing-signatures, which are hardly essential. Even if, for some reason, one's config did require some extension, it seems justified for the web interface to disallow it. If your config is that exotic, you'll have to build it yourself. Is there some obscure other way to turn on TH without a {-# ? Or would ensuring that the config doesn't have any {-# in block that out completely? Braden Shepherdson shepheb