{ pkgs, lib, ... }:
{
  programs.carapace.enable = true;
  programs.carapace.enableNushellIntegration = true;
  programs.nushell = {
    enable = true;
    shellAliases = {
      myip = lib.mkForce "echo";
    };
    extraEnv = ''
      source-env ${./prompt.nu}
    '';
    extraConfig = ''
      let carapace_completer = {|spans: list<string>|
        carapace $spans.0 nushell ...$spans
        | from json
        | if ($in | default [] | where value == $"($spans | last)ERR" | is-empty) { $in } else { null }
      }
      $env.CARAPACE_BRIDGES = 'zsh,fish,bash,inshellisense'

      let fish_completer = {|spans|
        ${lib.getExe pkgs.fish} --command $'complete "--do-complete=($spans | str join " ")"'
        | $"value(char tab)description(char newline)" + $in
        | from tsv --flexible --no-infer
      }

      let zoxide_completer = {|spans|
          $spans | skip 1 | zoxide query -l ...$in | lines | where {|x| $x != $env.PWD}
      }

      let multiple_completers = {|spans|
        ## alias fixer start https://www.nushell.sh/cookbook/external_completers.html#alias-completions
        let expanded_alias = scope aliases
        | where name == $spans.0
        | get -i 0.expansion

        let spans = if $expanded_alias != null {
          $spans
          | skip 1
          | prepend ($expanded_alias | split row ' ' | take 1)
        } else {
          $spans
        }
        ## alias fixer end

        match $spans.0 {
          __zoxide_z | __zoxide_zi => $zoxide_completer
          _ => $carapace_completer
        } | do $in $spans
      }

      $env.config = {
        show_banner: false,
        completions: {
          case_sensitive: false # case-sensitive completions
          quick: true           # set to false to prevent auto-selecting completions
          partial: true         # set to false to prevent partial filling of the prompt
          algorithm: "fuzzy"    # prefix or fuzzy
          external: {
            # set to false to prevent nushell looking into $env.PATH to find more suggestions
            enable: true
            # set to lower can improve completion performance at the cost of omitting some options
            max_results: 100
            completer: $multiple_completers
          }
        }
      }
      $env.PATH = ($env.PATH |
        split row (char esep) |
        append /usr/bin/env
      )

      source ${./aliases.nu}
    '';
  };
}