add nix path

runcoms/zshrc

@@ -10,6 +10,8 @@ if [[ -s "${ZDOTDIR:-$HOME}/.zprezto/init.zsh" ]]; then
   source "${ZDOTDIR:-$HOME}/.zprezto/init.zsh"
 fi
 
+export NIX_PATH=${NIX_PATH:+$NIX_PATH:}$HOME/.nix-defexpr/channels:/nix/var/nix/profiles/per-user/root/channels
+
 zstyle :prompt:pure:prompt:success color green
 
 export EDITOR=vim