use flake

#use_flake() {
#  watch_file flake.nix
#  watch_file flake.lock
#  watch_file default.nix
#  watch_file shell.nix
#  profile="$(direnv_layout_dir)"/flake-profile
#  mkdir -p "$(direnv_layout_dir)"
#  eval "$(time nix print-dev-env --show-trace --profile "$profile" || echo false)" &&
#  nix-store --add-root "shell.root" --indirect --realise "$profile" &&
#  nix-env --delete-generations +1 --profile "$profile"
#}
#use flake