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At the moment I need to set the fish shell to be my default shell on NixOS and there is no official documentation on how to do that declaratively (not by running chsh) in NixOS.

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1 Answer 1

Reset to default
34

In your configuration.nix,

{ pkgs, ... }:

{
  ...

  programs.fish.enable = true;

  users.users.<myusername> = {   
    ...  
    shell = pkgs.fish;
    ...
  };
}

Followed by nixos-rebuild switch.

More info in NixOS Wiki.

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3
  • 1
    How do you make fish default for all users?
    – George Shalvashvili
    Commented Feb 1, 2022 at 18:26
  • 1
    users.defaultUserShell = pkgs.fish; Docs
    – TeNNoX
    Commented Mar 18, 2022 at 14:10
  • Is there a way to do this in the home-server user configuration using flakes?
    – Martin Braun
    Commented Jul 18, 2023 at 7:32

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