nix-super/src/nix/flake-init.md

R""(

Examples

• Create a flake using the default template:

  # nix flake init
  

• List available templates:

  # nix flake show templates
  

• Create a flake from a specific template:

  # nix flake init -t templates#simpleContainer
  

Description

This command creates a flake in the current directory by copying the files of a template. It will not overwrite existing files. The default template is templates#templates.default, but this can be overridden using -t.

Template definitions

A flake can declare templates through its templates output attribute. A template has the following attributes:

• description: A one-line description of the template, in CommonMark syntax.

• path: The path of the directory to be copied.

• welcomeText: A block of markdown text to display when a user initializes a new flake based on this template.

Here is an example:

outputs = { self }: {

  templates.rust = {
    path = ./rust;
    description = "A simple Rust/Cargo project";
    welcomeText = ''
      # Simple Rust/Cargo Template
      ## Intended usage
      The intended usage of this flake is...

      ## More info
      - [Rust language](https://www.rust-lang.org/)
      - [Rust on the NixOS Wiki](https://wiki.nixos.org/wiki/Rust)
      - ...
    '';
  };

  templates.default = self.templates.rust;
}

)""