Hi -café, I installed Snap 0.3 last night on my Mac, and had some problems getting it to build with SSL support. This is just a quick note of the extra flags I had to pass in when installing it in case someone else has a setup similar to mine. These instructions presume that you are using the Homebrew package manager on OS X, and that Homebrew is installing packages into /usr/local. You first need to install the gnutls library. brew install gnutls Then install snap-server. cabal update cabal install snap-server -fgnutls --extra-lib-dirs=/usr/local/lib/ --extra-include-dirs=/usr/local/include/ Note that while gnutls' dependencies libgcrypt and libgpg-error also need to be in the path, they are dependencies of gnutls and will both be installed when you install gnutls with Homebrew. Cheers, Benedict.