diff --git a/README.md b/README.md
new file mode 100644
index 0000000..45b1d52
--- /dev/null
+++ b/README.md
@@ -0,0 +1,24 @@
+# Some module for Nixos
+
+Modules can be imported with `fetchurl` like this:
+
+```
+  imports =
+    [
+      ./hardware-configuration.nix
+      (builtins.fetchurl {
+         url = "https://git.mineau.eu/histausse/base-nix-vm/raw/branch/master/base.nix";
+         sha256 = "0r7rj0in3f5m171sx0savbynijcj3bfnnm9zi60l1l4v5l6dgv78";
+       })
+
+    ];
+```
+
+Where the value of `sha256` can be found using `nix-prefetch-url` like this:
+
+```
+```
+$ nix-prefetch-url https://git.mineau.eu/histausse/nixos-modules/raw/branch/master/default.nix
+path is '/nix/store/jrypv02r1c2i05iw8q0y1h386mjrp6da-default.nix'
+0r7rj0in3f5m171sx0savbynijcj3bfnnm9zi60l1l4v5l6dgv78
+```
diff --git a/default.nix b/base.nix
similarity index 82%
rename from default.nix
rename to base.nix
index 0ab34a1..4a622c8 100644
--- a/default.nix
+++ b/base.nix
@@ -6,6 +6,12 @@ in {
   options.base = {
     name = mkOption {
       type = types.str;
+      example = "server-1";
+      description = "Name of the machine, use for hostname";
+    };
+    domainName = mkOption {
+      type = types.str;
+      example = "example.com";
       description = "Name of the machine, use for hostname";
     };
   };