template file

flake.lock

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+{
+  "nodes": {
+    "hardware": {
+      "locked": {
+        "lastModified": 1659356074,
+        "narHash": "sha256-UwV6hZZEtchvtiTCCD/ODEv1226eam8kEgEyQb7xB0E=",
+        "owner": "nixos",
+        "repo": "nixos-hardware",
+        "rev": "ea3efc80f8ab83cb73aec39f4e76fe87afb15a08",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixos-hardware",
+        "type": "github"
+      }
+    },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": "utils"
+      },
+      "locked": {
+        "lastModified": 1659484873,
+        "narHash": "sha256-6VoPiGyDdjBHOJ3IpS24lY1lrDiOHeuEefOFI0qz3WE=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "d8d9ff0b2df77defa10375c6665b51f0251c34d6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1659522808,
+        "narHash": "sha256-HBcM19nGhI3IWwPNVlYb0MZ8VW6iKp4JbAVkeIHVykc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "168d1c578909dc143ba52dbed661c36e76b12b36",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "hardware": "hardware",
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "You new nix config";
+
+  inputs = {
+    # Nixpkgs
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    hardware.url = "github:nixos/nixos-hardware";
+
+    # Home manager
+    home-manager.url = "github:nix-community/home-manager";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+
+    # TODO: Add any other flake you might need
+
+    # Shameless plug: looking for a way to nixify your themes and make
+    # everything match nicely? Try nix-colors!
+    # nix-colors.url = "github:misterio77/nix-colors";
+  };
+
+  outputs = { nixpkgs, home-manager, ... }@inputs:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs [
+        "aarch64-linux"
+        "i686-linux"
+        "x86_64-linux"
+        "aarch64-darwin"
+        "x86_64-darwin"
+      ];
+    in rec {
+      # Your custom packages and modifications
+      overlays = {
+        default = import ./overlay { inherit inputs; };
+      };
+
+      # Reusable nixos modules you might want to export
+      # These are usually stuff you would upstream into nixpkgs
+      nixosModules = import ./modules/nixos;
+      # Reusable home-manager modules you might want to export
+      # These are usually stuff you would upstream into home-manager
+      homeManagerModules = import ./modules/home-manager;
+
+      # Devshell for bootstrapping
+      # Acessible through 'nix develop' or 'nix-shell' (legacy)
+      devShells = forAllSystems (system: {
+        default = legacyPackages.${system}.callPackage ./shell.nix { };
+      });
+
+      # This instantiates nixpkgs for each system listed above
+      # Allowing you to add overlays and configure it (e.g. allowUnfree)
+      # Our configurations will use these instances
+      # Your flake will also let you access your package set through nix build, shell, run, etc.
+      legacyPackages = forAllSystems (system:
+        import inputs.nixpkgs {
+          inherit system;
+          # This adds our overlays to pkgs
+          overlays = builtins.attrValues overlays;
+          # NOTE: Using `nixpkgs.config` in your NixOS config won't work
+          # Instead, you should set nixpkgs configs here
+          # (https://nixos.org/manual/nixpkgs/stable/#idm140737322551056)
+
+          # config.allowUnfree = true;
+        }
+      );
+
+      nixosConfigurations = {
+        # FIXME replace with your hostname
+        your-hostname = nixpkgs.lib.nixosSystem {
+          pkgs = legacyPackages.x86_64-linux;
+          specialArgs = { inherit inputs; }; # Pass flake inputs to our config
+          modules = (builtins.attrValues nixosModules) ++ [
+            # > Our main nixos configuration file <
+            ./nixos/configuration.nix
+          ];
+        };
+      };
+
+      homeConfigurations = {
+        # FIXME replace with your username@hostname
+        "your-username@your-hostname" =
+          home-manager.lib.homeManagerConfiguration {
+            pkgs = legacyPackages.x86_64-linux;
+            extraSpecialArgs = { inherit inputs; }; # Pass flake inputs to our config
+            modules = (builtins.attrValues homeManagerModules) ++ [
+              # > Our main home-manager configuration file <
+              ./home-manager/home.nix
+            ];
+          };
+      };
+    };
+}

home-manager/home.nix

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+# This is your home-manager configuration file
+# Use this to configure your home environment (it replaces ~/.config/nixpkgs/home.nix)
+
+{ inputs, lib, config, pkgs, ... }: {
+  imports = [
+    # If you want to use home-manager modules from other flakes (such as nix-colors), use something like:
+    # inputs.nix-colors.homeManagerModule
+
+    # Feel free to split up your configuration and import pieces of it here.
+  ];
+
+  # Comment out if you wish to disable unfree packages for your system
+  nixpkgs.config.allowUnfree = true;
+
+  # TODO: Set your username
+  home = {
+    username = "your-username";
+    homeDirectory = "/home/your-username";
+  };
+
+  # Add stuff for your user as you see fit:
+  # programs.neovim.enable = true;
+  # home.packages = with pkgs; [ steam ];
+
+  # Enable home-manager and git
+  programs.home-manager.enable = true;
+  programs.git.enable = true;
+
+  # Nicely reload system units when changing configs
+  systemd.user.startServices = "sd-switch";
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  home.stateVersion = "22.05";
+}

modules/home-manager/default.nix

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+# Add your reusable home-manager modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

modules/nixos/default.nix

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+# Add your reusable NixOS modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

nixos/configuration.nix

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+# This is your system's configuration file.
+# Use this to configure your system environment (it replaces /etc/nixos/configuration.nix)
+
+{ inputs, lib, config, pkgs, ... }: {
+
+  imports = [
+    # If you want to use modules from other flakes (such as nixos-hardware), use something like:
+    # inputs.hardware.nixosModules.common-cpu-amd
+    # inputs.hardware.nixosModules.common-ssd
+
+    # It's strongly recommended you take a look at
+    # https://github.com/nixos/nixos-hardware
+    # and import modules relevant to your hardware.
+
+    # Import your generated (nixos-generate-config) hardware configuration
+    ./hardware-configuration.nix
+
+    # You can also split up your configuration and import pieces of it here.
+  ];
+
+  nix = {
+    # This will add each flake input as a registry
+    # To make nix3 commands consistent with your flake
+    registry = lib.mapAttrs (_: value: { flake = value; }) inputs;
+
+    # This will additionally add your inputs to the system's legacy channels
+    # Making legacy nix commands consistent as well, awesome!
+    nixPath = lib.mapAttrsToList (key: value: "${key}=${value.to.path}") config.nix.registry;
+  };
+
+  nix = {
+    settings = {
+      # Enable flakes and new 'nix' command
+      experimental-features = "nix-command flakes";
+      # Deduplicate and optimize nix store
+      auto-optimise-store = true;
+    };
+  };
+
+  # Remove if you wish to disable unfree packages for your system
+  nixpkgs.config.allowUnfree = true;
+
+  # FIXME: Add the rest of your current configuration
+
+  # TODO: Set your hostname
+  networking.hostName = "your-hostname";
+
+  # TODO: This is just an example, be sure to use whatever bootloader you prefer
+  boot.loader.systemd-boot.enable = true;
+
+  # TODO: Configure your system-wide user settings (groups, etc), add more users as needed.
+  users.users = {
+    # FIXME: Replace with your username
+    your-username = {
+      # TODO: You can set an initial password for your user.
+      # If you do, you can skip setting a root password by passing '--no-root-passwd' to nixos-install.
+      # Be sure to change it (using passwd) after rebooting!
+      # initialPassword = "correcthorsebatterystaple";
+      isNormalUser = true;
+      openssh.authorizedKeys.keys = [
+        # TODO: Add your SSH public key(s) here, if you plan on using SSH to connect
+      ];
+      # TODO: Be sure to add any other groups you need (such as networkmanager, audio, docker, etc)
+      extraGroups = [ "wheel" ];
+    };
+  };
+
+  # This setups a SSH server. Very important if you're setting up a headless system.
+  # Feel free to remove if you don't need it.
+  services.openssh = {
+    enable = true;
+    # Forbid root login through SSH.
+    permitRootLogin = "no";
+    # Use keys only. Remove if you want to SSH using password (not recommended)
+    passwordAuthentication = false;
+  };
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  system.stateVersion = "22.05";
+}

nixos/hardware-configuration.nix

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+# This is just an example, you should generate yours with nixos-generate-config and put it in here.
+{
+  fileSystems."/" = {
+    device = "/dev/sda1";
+    fsType = "ext4";
+  };
+
+  # Set your system kind (needed for flakes)
+  nixpkgs.hostPlatform = "x86_64-linux";
+}

overlay/default.nix

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+# This file defines two overlays and composes them
+{ inputs, ... }:
+let
+  # This one brings our custom packages from the 'pkgs' directory
+  additions = final: _prev: import ../pkgs { pkgs = final; };
+
+  # This one contains whatever you want to overlay
+  # You can change versions, add patches, set compilation flags, anything really.
+  # https://nixos.wiki/wiki/Overlays
+  modifications = final: prev: {
+    # example = prev.example.overrideAttrs (oldAttrs: rec {
+    # ...
+    # });
+  };
+in
+inputs.nixpkgs.lib.composeManyExtensions [ additions modifications ]

pkgs/default.nix

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+# When you add custom packages, list them here
+# These are similar to nixpkgs packages
+{ pkgs }: {
+  # example = pkgs.callPackage ./example { };
+}

shell.nix

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+# Shell for bootstrapping flake-enabled nix and home-manager
+{ pkgs ? let
+    # If pkgs is not defined, instanciate nixpkgs from locked commit
+    lock = (builtins.fromJSON (builtins.readFile ./flake.lock)).nodes.nixpkgs.locked;
+    nixpkgs = fetchTarball {
+      url = "https://github.com/nixos/nixpkgs/archive/${lock.rev}.tar.gz";
+      sha256 = lock.narHash;
+    };
+    system = builtins.currentSystem;
+    overlays = [ ]; # Explicit blank overlay to avoid interference
+  in
+  import nixpkgs { inherit system overlays; }
+, ...
+}: pkgs.mkShell {
+  # Enable experimental features without having to specify the argument
+  NIX_CONFIG = "experimental-features = nix-command flakes";
+  nativeBuildInputs = with pkgs; [ nix home-manager git ];
+}