bug: nix run home-manager/master -- init --switch does not create flake.nix

[kamransoomro84]

Are you following the right branch?

• My Nixpkgs and Home Manager versions are in sync

Is there an existing issue for this?

• I have searched the existing issues

Issue description

I am following the Home Manager standalone install instructions using flakes on Linux. I installed nix using the determinate installer. After running nix run home-manager/master -- init --switch, I have the ~/.config/home-manager directory with a home.nix file, but no flake.nix. I'm not sure if I'm doing anything wrong?

Maintainer CC

No response

System information

- system: `"x86_64-linux"`
 - host os: `Linux 6.1.0-25-amd64, Debian GNU/Linux, 12 (bookworm), nobuild`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Determinate Nix 3.0.0) 2.26.3`
 - nixpkgs: `/nix/store/mphw46pqiq3x60wq22zna385dw56h2ib-source`

[sechmann]

I'm experiencing the same issue, i see we both use Determinate Nix.
no flake.nix generated (seems like it's not even attempting to generate it)

home.nix

{ config, pkgs, ... }:

{
  home.username = "vegar";
  home.homeDirectory = "/home/vegar";
  home.stateVersion = "24.11";
  programs.home-manager.enable = true;
}

$ nix run home-manager/master -- init --switch
The file /home/vegar/.config/home-manager/home.nix already exists, leaving it unchanged...

Creating initial Home Manager generation...

/nix/store/sc647xgz3vnnyr8m6ml6g7b98jdgb8bw-home-manager-generation
Starting Home Manager activation
Activating checkFilesChanged
Activating checkLinkTargets
Activating writeBoundary
Creating new profile generation
Activating installPackages
installing 'home-manager-path'
Activating linkGeneration
Creating home file links in /home/vegar
Activating onFilesChange
Activating reloadSystemd

There are 192 unread and relevant news items.
Read them by running the command "home-manager news".

All done! The home-manager tool should now be installed and you can edit

    /home/vegar/.config/home-manager/home.nix

to configure Home Manager. Run 'man home-configuration.nix' to
see all available options.

For reference i first installed home-manager using the standalone method with the channel method. Later i removed that and tried to install it with flakes.

System information

 - system: `"x86_64-linux"`
 - host os: `Linux 6.8.0-53-generic, Ubuntu, 24.04.2 LTS (Noble Numbat), nobuild`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Determinate Nix 3.0.0) 2.26.3`
 - nixpkgs: `/nix/store/mphw46pqiq3x60wq22zna385dw56h2ib-source`