diff --git a/flake.nix b/flake.nix
index 08776f2..b670b0f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,6 @@
     sops-nix.url = "github:Mic92/sops-nix";
 
     # CrOS inputs
-    nix-secrets = "github:TheWanderingCrow/nix-secrets";
+    nix-secrets.url = "github:TheWanderingCrow/nix-secrets";
   };
 }
diff --git a/lib/default.nix b/lib/default.nix
new file mode 100644
index 0000000..17e034b
--- /dev/null
+++ b/lib/default.nix
@@ -0,0 +1,54 @@
+{lib, ...}:
+# Credit: @JakeHamilton
+# https://github.com/jakehamilton/config/blob/bf8411ec6b636f887dac45970864e09ba3ebf816/lib/module/default.nix
+with lib; {
+  ## Create a NixOS module option.
+  ##
+  ## ```nix
+  ## lib.mkOpt nixpkgs.lib.types.str "My default" "Description of my option."
+  ## ```
+  ##
+  #@ Type -> Any -> String
+  mkOpt = type: default: description:
+    mkOption {inherit type default description;};
+
+  ## Create a NixOS module option without a description.
+  ##
+  ## ```nix
+  ## lib.mkOpt' nixpkgs.lib.types.str "My default"
+  ## ```
+  ##
+  #@ Type -> Any -> String
+  mkOpt' = type: default: mkOpt type default null;
+
+  ## Create a NixOS module option with no default
+  ##
+  ## ```nix
+  ## lib.mkOpt_ types.path "Description of my option"
+  ## ```
+  ##
+  #@ Type -> Any -> String
+  mkOpt_ = type: description: mkOption {inherit type description;};
+
+  enabled = {
+    ## Quickly enable an option.
+    ##
+    ## ```nix
+    ## services.nginx = enabled;
+    ## ```
+    ##
+    #@ true
+    enable = true;
+  };
+
+  disabled = {
+    ## Quickly disable an option.
+    ##
+    ## ```nix
+    ## services.nginx = disabled;
+    ## ```
+    ##
+    #@ false
+    enable = false;
+  };
+}