templates: add templates for some use cases

templates/home-manager/flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "Minimal example of nix-on-droid system config with home-manager.";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";
+
+    home-manager = {
+      url = "github:nix-community/home-manager/release-22.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    nix-on-droid = {
+      url = "github:t184256/nix-on-droid/release-22.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.home-manager.follows = "home-manager";
+    };
+  };
+
+  outputs = { self, nixpkgs, home-manager, nix-on-droid }: {
+
+    nixOnDroidConfigurations.deviceName = nix-on-droid.lib.nixOnDroidConfiguration {
+      system = "aarch64-linux";
+      config = ./nix-on-droid.nix;
+    };
+
+  };
+}

templates/home-manager/nix-on-droid.nix

@@ -0,0 +1,55 @@
+{ config, lib, pkgs, ... }:
+
+{
+  # Simply install just the packages
+  environment.packages = with pkgs; [
+    # User-facing stuff that you really really want to have
+    vim # or some other editor, e.g. nano or neovim
+
+    # Some common stuff that people expect to have
+    #diffutils
+    #findutils
+    #utillinux
+    #tzdata
+    #hostname
+    #man
+    #gnugrep
+    #gnupg
+    #gnused
+    #gnutar
+    #bzip2
+    #gzip
+    #xz
+    #zip
+    #unzip
+  ];
+
+  # Backup etc files instead of failing to activate generation if a file already exists in /etc
+  environment.etcBackupExtension = ".bak";
+
+  # Read the changelog before changing this value
+  system.stateVersion = "22.05";
+
+  # Set up nix for flakes
+  nix.extraOptions = ''
+    experimental-features = nix-command flakes
+  '';
+
+  # Set your time zone
+  #time.timeZone = "Europe/Berlin";
+
+  # Configure home-manager
+  home-manager = {
+    backupFileExtension = "hm-bak";
+    useGlobalPkgs = true;
+
+    config =
+      { config, lib, pkgs, ... }:
+      {
+        # Read the changelog before changing this value
+        home.stateVersion = "22.05";
+
+        # insert home-manager config
+      };
+  };
+}