$env.config.hooks.env_change.PWD = $env.config.hooks.env_change.PWD? | default []
$env.config.hooks.env_change.PWD ++= [{
  if (which direnv | is-empty) {
    return
  }
  direnv export json | from json | default {} | load-env
  use std/config env-conversions
  $env.PATH = do (env-conversions).path.from_string $env.PATH
}]

def --env d [q?: string = ~, --skip-nix-shell] {

def --env d [q?: string = ~] {

  }
  if $skip_nix_shell {
    $dir | enter-nix-shell
  }
}
def enter-nix-shell []: path -> nothing {
  path split
  | skip # skip root dir
  | generate {|e, acc=""|
    let a = $acc + "/" + $e
    {out: $a, next: $a}

  | _enter-nix-shell

def _enter-nix-shell []: list<path> -> nothing {
  let src = if ($in | is-empty) { return } else $in
  let car = $src | first
  let cdr = $src | skip
  if ($car | path join shell.nix | path exists) {
    nix-shell $car --command $"nu -e '($cdr) | _enter-nix-shell'"
  } else {
    $cdr | _enter-nix-shell
  }
}

  programs.direnv = {
    enable = true;
    nix-direnv.enable = true;
  };