Can you clarify how "the installation process fails"? Does it succeed, but just not set up any init for nushell, or is there an actual error during the install? If the latter, can you include a log?

Ideally in a details element, like:

<details><summary>install log</summary>

```
... paste here ...
```

</details>

Great work @Eternahl ! I'm not using nushell as login shell, but I did set it up as the default shell in my Alacritty config. I was just thinking about creating the nushell version of nix-daemon.sh but I see that you've done just that.

It will add to the awesomeness of your work if you can add the completions for nushell that are stored in /nix/var/nix/profiles/default/share as well, and of course if you can finally make it work for nushell as a login shell and merge your fork.

The context: nushell installed as a login shell

Running the nix installation command (sh <(curl -L https://nixos.org/nix/install) --daemon) directly from nushell produce an error, but that is not really the point of this issue since we can use a sh shell as an alternative.

The main problem is that nushell is not handled by the installation script, so nix commands are not sourced.

~> nix-shell
Error: nu::shell::external_command

  × External command failed
   ╭─[entry #1:1:1]
 1 │ nix-shell
   · ────┬────
   ·     ╰── executable was not found
   ╰────
  help: No such file or directory (os error 2)

You might need to take a look at scripts/local.mk, It's being used by some package files like Makefile and package.nix. They execute those scripts nix-profile and nix-profile-daemon.

But then they output other sh files, which are read by other sh files, not sure, but they could need a nushell version also.

Makefile seem to work with nushell nushell/nushell#6243 (comment)