{ pkgs ? import <nixpkgs> {} }:
pkgs.mkShell {
# needed pkgs
# -----------
buildInputs = with pkgs; [
hugo
blockdiag
nwdiag
seqdiag
actdiag
lessc
rake
feh
ion
inotify-tools
pandoc
];
# run this on start
# -----------------
shellHook = ''
export HELLO="world"
'';
}