anchor.diff:          SPACESHIP_BATTERY_THRESHOLD=30
           ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE='fg=238'
           setopt HIST_IGNORE_ALL_DUPS
  -        '';
  +      '';
         profileExtra = ''
           export PATH="$HOME/programs:$PATH";
           export PATH="$HOME/tools:$PATH";
  
positive.code:         export PATH="$HOME/.rvm/bin:$PATH";
          export PATH="$HOME/.cargo/bin:$PATH";
          export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH";
          '';
        sessionVariables = { 
          TERM="xterm-256color"; 
          EDITOR="vim";
          VISUAL="vim";
          PAGER="less";
  
negative.code: { config, pkgs, ... }:
  
  {
    programs.zsh = {
      enable = true;
      history = {
        size = 102400;
        save = 102400;
        ignoreDups = true;
        expireDuplicatesFirst = true;
        share = true;
      };
      enableAutosuggestions = true;
      enableCompletion = true;
      oh-my-zsh = {
        enable = true;
        plugins = [ "vi-mode" "git" "python" "history-substring-search" "tmux" ];
      };
      plugins = [
        {
          name = "spaceship";
          file = "spaceship.zsh";
          src = pkgs.fetchgit {
            url = "https://github.com/denysdovhan/spaceship-prompt";
            rev = "v3.11.1";
            sha256 = "0habry3r6wfbd9xbhw10qfdar3h5chjffr5pib4bx7j4iqcl8lw8";
          };
        }];
        initExtra = ''
          SPACESHIP_TIME_SHOW=true
          SPACESHIP_EXIT_CODE_SHOW=true
  