Switched from agnoster to powerlevel9k

roles/host_common.nix

@@ -6,6 +6,7 @@
 
   imports =
     [
+      ./tmux.nix
     ];
 
   # Select internationalisation properties.
@@ -39,7 +40,6 @@
     systemPackages = with pkgs; [
       byobu             # text-based window manager and terminal multiplexer.
       htop              # interactive process viewer
-      tmux              # Terminal multiplexer required by byobu
       git               # Distributed version control system
       powerline-fonts   # For zsh themes
       lsof              # list open files
@@ -69,8 +69,8 @@
     ohMyZsh = {
       enable = true;
       plugins = [ "git" "tmux" ];
-      theme = "agnoster";
     };
+    promptInit = "source ${pkgs.zsh-powerlevel9k}/share/zsh-powerlevel9k/powerlevel9k.zsh-theme";
   };
 
   users.defaultUserShell = pkgs.zsh;   # Set the default shell for all users