add link to examples

README.md

@@ -35,6 +35,8 @@ result/bin/darwin-rebuild switch
 
 ## Example configuration
 
+Checkout [modules/examples](https://github.com/LnL7/nix-darwin/tree/master/modules/examples) for some example configurations.
+
 ```nix
 { config, lib, pkgs, ... }:
 {

modules/examples/simple.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+{
+
+  # List packages installed in system profile. To search by name, run:
+  # $ nix-env -qaP | grep wget
+  environment.systemPackages =
+    [ # Include nix-tools
+      config.system.build.nix
+
+      pkgs.nix-repl
+    ];
+
+  environment.etc."bashrc".text = ''
+    # /etc/bashrc: DO NOT EDIT -- this file has been generated automatically.
+    # This file is read for interactive shells.
+
+    # Only execute this file once per shell.
+    if [ -n "$__ETC_BASHRC_SOURCED" -o -n "$NOSYSBASHRC" ]; then return; fi
+    __ETC_BASHRC_SOURCED=1
+
+    export NIX_PATH=nixpkgs=$HOME/.nix-defexpr/nixpkgs:darwin=$HOME/.nix-defexpr/darwin:darwin-config=$HOME/.nixpkgs/darwin-config.nix:$NIX_PATH
+
+    export PATH=${config.environment.systemPath}''${PATH:+:$PATH}
+
+    ${config.system.build.setEnvironment}
+    ${config.system.build.setAliases}
+  '';
+}