@ geometry dash lite hello, you can follow these steps

1. Create a Nix configuration file: Create a Nix configuration file if you don't have one already. You can use the default configuration file located at /etc/nixos/configuration.nix. Open the file in a text editor.
2. Add the necessary Nix packages: In the Nix configuration file, add the necessary Nix packages for Doom Emacs. This typically includes the Emacs package and any other dependencies required by Doom Emacs. Add the following lines to the file:

nix
Copy
environment.systemPackages = with pkgs; [
  emacs
  ripgrep
  fd
];

3. Enable the Nix package: Enable the Nix package by adding it to the list of packages in the environment.systemPackages section of your Nix configuration file.

4. Save and apply the configuration: Save the Nix configuration file and apply the changes by running the following command as root or with sudo:

Copy $ sudo nixos-rebuild switch

5. Clone the Doom Emacs repository: Clone the Doom Emacs repository to a directory of your choice. You can do this by running the following command:

Copy
$ git clone https://github.com/hlissner/doom-emacs ~/.emacs.d

6. Customize Doom Emacs configuration (optional): If you want to customize Doom Emacs, you can modify the ~/.doom.d/config.el file according to your preferences. This file allows you to configure various aspects of Doom Emacs, such as packages, themes, and keybindings.

7. Install Doom Emacs: Install Doom Emacs by running the following command:

Copy $ ~/.emacs.d/bin/doom install

8. Start Doom Emacs: Start Doom Emacs by running the following command:

Copy
$ ~/.emacs.d/bin/doom sync