some better comments

configuration.nix

@@ -1,13 +1,24 @@
-{ inputs, pkgs, ... }: {
+# This is your system's configuration file.
+
+{ inputs, lib, config, pkgs, ... }: {
   imports = [
-    # Add external nixos modules here
+    # 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 extremely recommended you take a look at https://github.com/nixos/nixos-hardware
+    # and import modules relevant to your hardware (the above examples are for AMD CPUs and SSDs).
+
+    # Import your generated hardware configuration
     ./hardware-configuration.nix
+
+    # Feel free to split up your configuration and import pieces of it here.
   ];
 
-  system.stateVersion = "21.11";
-  # Uncomment to enable unfree packages for your system
-  # nixpkgs.config.allowUnfree = true;
+  # Set your hostname
+  networking.hostName = "cool-computer";
+
+  # Comment out to disable unfree packages for your system
+  nixpkgs.config.allowUnfree = true;
 
   # This will make all users source .nix-profile on login, activating home
   # manager automatically. Will allow you to use home-manager standalone on
@@ -15,4 +26,12 @@
   environment.loginShellInit = ''
     [ -d "$HOME/.nix-profile" ] || /nix/var/nix/profiles/per-user/$USER/home-manager/activate &> /dev/null
   '';
+
+  # This will add your inputs as registries, making operations with them
+  # consistent with your flake inputs.
+  nix.registry = lib.mapAttrs' (n: v:
+    lib.nameValuePair ("${n}") ({ flake = inputs."${n}"; })
+  ) inputs;
+
+  system.stateVersion = "21.11";
 }

home.nix

@@ -1,8 +1,21 @@
 { inputs, pkgs, hostname, ... }: {
   imports = [
-    # Add external home-manager modules here
+    # If you want to use home-manager modules from other flakes (such as nix-colors), use something like:
+    # inputs.nix-colors.nixosModule
+
+    # Feel free to split up your configuration and import pieces of it here.
   ];
 
+  # Comment out to disable unfree packages for your system
+  nixpkgs.config.allowUnfree = true;
+
   # Add stuff for your user as you see fit:
   # programs.neovim.enable = true;
+
+  # Enable home-manager and git
+  programs.home-manager.enable = true;
+  programs.git.enable = true;
+
+  # Nicely reload system units when changing configs
+  systemd.users.startServices = "sd-switch";
 }