nixos-config/templates/basic-devshell/flake.nix

{
  description = "Basic flake template for setting up development shells";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = inputs@{ self, nixpkgs, ... }:
    let systems = inputs.flake-utils.lib.defaultSystems;
    in inputs.flake-utils.lib.eachSystem systems (system: {
      devShells.default =
        import ./shell.nix { pkgs = import nixpkgs { inherit system; }; };
    });
}