{ config, pkgs, ... }: {
  # Configure BASH exports
  # https://nix-community.github.io/home-manager/options.html

  # https://github.com/justjanne/powerline-go
  # https://nix-community.github.io/home-manager/options.html#opt-programs.powerline-go.enable 
  programs.powerline-go = { 
    enable = false;
    # https://github.com/justjanne/powerline-go#customization 
    settings = { 
      hostname-only-if-ssh = true;
      cwd-max-depth = 2;
      condensed = false;
      theme = "default";
      # valid choices: default, low-contrast, gruvbox, solarized-dark16, solarized-light16
      # theme = "gruvbox";
     };
    modules = [ 
      "venv"
      "user"
      "host"
      "ssh"
      "cwd"
      "nix-shell"
      "perms"
      "git"
      "docker"
      "exit"
      "root"
    ];
  };

  programs.bash = {
    enable = true;
    enableCompletion = true;
    initExtra = ''
      GPG_TTY=$(tty)
      ssh-add > /dev/null &> /dev/null
    '';
    sessionVariables = {
      # Set the GTK Theme
      # GTK_THEME = "Gruvbox-Dark-BL";
      XDG_DATA_HOME = "$HOME/.local/share";
      # Disable askpass for cli auth:
      # SSH_ASKPASS = "";
    };
    bashrcExtra = ''
      docker-restart() {
        pushd /Storage/Data/docker-compose/sysctl.io
        docker stop $1
        docker rm $1
        docker-compose up -d $1
        popd
      }
      # Build ISOs/SD Card Images
      nixos-build-all-images-verbose() {
        echo "Building Linode image..."
        nixos-build-linode-img-verbose
        echo "Building Raspberry Pi image..."
        nixos-build-pi-img-verbose
        echo "Building ISO Console image..."
        nixos-build-console-verbose
        echo "Building ISO Desktop image..."
        nixos-build-desktop-verbose
        ls -lah ~/ | grep nixos
      }
      nixos-build-all-images() {
        echo "Building Linode image..."
        nixos-build-linode-img
        echo "Building Raspberry Pi image..."
        nixos-build-pi-img
        echo "Building ISO Console image..."
        nixos-build-console
        echo "Building ISO Desktop image..."
        nixos-build-desktop
        ls -lah ~/ | grep nixos
      }
      nixos-build-pi-img-verbose() {
        pushd /etc/nixos/git 
        git pull 
        nix build .#imageConfigurations.nixos-rpi4-img --show-trace --verbose
        cp result/sd-image/nixos-sd-image* ~/.
        rm -f result
        popd
      }
      nixos-build-linode-img-verbose() {
        pushd /etc/nixos/git 
        git pull 
        nix build .#imageConfigurations.nixos-linode-img --show-trace --verbose
        cp result/nixos.img.gz ~/nixos-linode-`ddate`-`git rev-parse HEAD | cut -b 1-7`.img.gz
        rm -f result
        popd
      }
      nixos-build-console-verbose() {
        pushd /etc/nixos/git
        git pull 
        nix build .#imageConfigurations.nixos-iso-console --show-trace --verbose
        cp result/iso/nixos.iso ~/nixos-console-`ddate`-`git rev-parse HEAD | cut -b 1-7`.iso
        rm -f result
        popd
      }
      nixos-build-desktop-verbose() {
        pushd /etc/nixos/git
        git pull 
        nix build .#imageConfigurations.nixos-iso-desktop --show-trace --verbose
        cp result/iso/nixos.iso ~/nixos-desktop-`ddate`-`git rev-parse HEAD | cut -b 1-7`.iso
        rm -f result
        popd
      }
      nixos-build-pi-img() {
        pushd /etc/nixos/git 
        git pull 
        nix build .#imageConfigurations.nixos-rpi4-img
        cp result/sd-image/nixos-sd-image* ~/.
        rm -f result
        popd
      }
      nixos-build-linode-img() {
        pushd /etc/nixos/git 
        git pull 
        nix build .#imageConfigurations.nixos-linode-img
        cp result/nixos.img.gz ~/nixos-linode-`ddate`-`git rev-parse HEAD | cut -b 1-7`.img.gz
        rm -f result
        popd
      }
      nixos-build-console() {
        pushd /etc/nixos/git
        git pull 
        nix build .#imageConfigurations.nixos-iso-console
        cp result/iso/nixos.iso ~/nixos-console-`ddate`-`git rev-parse HEAD | cut -b 1-7`.iso
        rm -f result
        popd
      }
      nixos-build-desktop() {
        pushd /etc/nixos/git
        git pull 
        nix build .#imageConfigurations.nixos-iso-desktop
        cp result/iso/nixos.iso ~/nixos-desktop-`ddate`-`git rev-parse HEAD | cut -b 1-7`.iso
        rm -f result
        popd
      }

      # NixOS Related
      nix-clean-all() {
        sudo nix-env -u --always
        sudo nix-collect-garbage -d
      }
    '';
    shellAliases = {
      prime-select = "nvidia-offload";
      screenshot = ''grim -g "$(slurp)" | wl-copy -t image/png'';

      # Don't use X to open emacs
      emacs  = "emacs -nw";

      # docker
      d   = "docker";
      dc  = "docker-compose";
      de  = "docker exec -it";
      dl  = "docker logs -f ";
      dps = ''docker ps --format "table [{{.ID}}] {{.Names}}\t{{.Status}}\t{{.State}}\t{{.Label \"type\"}}"'';

      # bash / system
      ls  = "exa --icons -F --group-directories-first --git";
      cp  = "rsync -avr";
      ll  = "exa -lah --icons -F --group-directories-first --git";
      rm  = "rm -i";
      df  = "duf";
      cat = "bat";
      
      # git
      g   = "git";
      ga  = "git add -A";
      gb  = "git branch";
      gc  = "git commit";
      gca = "git commit -a";
      gco = "git checkout";
      gd  = "git diff";
      gp  = "git pull --prune";
      gpu = "git push origin HEAD";
      gs  = "git status -sb";

      # time / date
      tdate = "date +%Y.%m.%d..%H.%M";
      ttime = "date +%H.%M";
      ddate = "date +%Y.%m.%d";
      dday  = "date +%A";

      # nixos-rebuild
      ns  = "nix shell";
      nr  = "sudo nixos-rebuild";
      nrs = "sudo nixos-rebuild --upgrade switch";
      nrt = "sudo nixos-rebuild test";
      nrb = "sudo nixos-rebuild build";

      # Rebuild everything
      rebuild-home = "git -C /etc/nixos/git pull && home-manager switch -b backup --flake /etc/nixos/git";
      rebuild-host = "git -C /etc/nixos/git pull && sudo nixos-rebuild switch --flake /etc/nixos/git";
      rebuild-all  = "rebuild-host && rebuild-home";
      rebuild-host-remote = "git -C /etc/nixos/git pull && sudo nixos-rebuild switch --flake /etc/nixos/git -j0";
      rebuild-home-remote = "git -C /etc/nixos/git pull && home-manager switch -b backup --flake /etc/nixos/git --max-jobs 0";
      rebuild-all-remote  = "rebuild-host-remote && rebuild-home-remote";
    };
  };
}