Nix Flake New Command: Usage and Description

R""( # Examples * Create a flake using the default template in the directory `hello`: ```console # nix flake new hello ``` * List available templates: ```console # nix flake show templates ``` * Create a flake from a specific template in the directory `hello`: ```console # nix flake new hello -t templates#trivial ``` # Description This command creates a flake in the directory `dest-dir`, which must not already exist. It's equivalent to: ```console # mkdir dest-dir # cd dest-dir # nix flake init ``` )""

The `nix flake new` command initializes a new flake in a specified, non-existent directory (`dest-dir`). It offers flexibility by allowing the user to create a flake using either the default template or a specific template selected from available templates. To specify a template, the `-t` flag is used (e.g., `templates#trivial`). List available templates with `nix flake show templates`. The command combines the actions of creating the directory (`mkdir dest-dir`), changing the current directory (`cd dest-dir`), and initializing a flake (`nix flake init`). It's a quick way to set up a new flake project. `nix flake new hello` uses the default template, while `nix flake new hello -t templates#trivial` uses the `trivial` template.