#!/usr/bin/env bash cp /etc/nixos/configuration.nix /etc/nixos/configuration.nix.backup sed -i '/services\.printing\.enable = true;/a\ nix.settings.experimental-features = ["nix-command" "flakes"];\n services.openssh.enable = true;' /etc/nixos/configuration.nix sed -i '/thunderbird/a\ git\n vscode\n tomb' /etc/nixos/configuration.nix echo "/etc/nixos/configuration.nix updated successfully."