diff --git a/lib/bool.nix b/lib/bool.nix
deleted file mode 100644
index 30a44842..00000000
--- a/lib/bool.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{lib}: {
-  mkBool = value: description:
-    lib.mkOption {
-      type = lib.types.bool;
-      default = value;
-      inherit description;
-    };
-}
diff --git a/lib/default.nix b/lib/default.nix
index ccc81059..fc5aca13 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -1,5 +1,5 @@
 {lib}: {
-  bool = import ./bool.nix {inherit lib;};
+  modules = import ./modules.nix {inherit lib;};
   dag = import ./dag.nix {inherit lib;};
   types = import ./types {inherit lib;};
   languages = import ./languages.nix {inherit lib;};
diff --git a/lib/modules.nix b/lib/modules.nix
new file mode 100644
index 00000000..909a9f4b
--- /dev/null
+++ b/lib/modules.nix
@@ -0,0 +1,13 @@
+{lib}: let
+  inherit (lib.options) mkOption;
+  inherit (lib.types) bool;
+in {
+  # mkBoolOption: bool -> string -> option
+  # e.g. mkBoolOption true "Enable feature X"
+  mkBoolOption = value: description:
+    mkOption {
+      type = bool;
+      default = value;
+      inherit description;
+    };
+}
diff --git a/lib/nmd.nix b/lib/nmd.nix
deleted file mode 100644
index fd945f1c..00000000
--- a/lib/nmd.nix
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copied from nmd master: https://gitlab.com/rycee/nmd/-/blob/master/default.nix?ref_type=heads
-# Allows asciiDoc in options. It is easier to copy & keep updated then figure out how to pass the nmd input
-# along to user modules
-{
-  # Indicates that the given text should be interpreted as AsciiDoc markup.
-  asciiDoc = text: {
-    _type = "asciiDoc";
-    inherit text;
-  };
-
-  # Indicates that the given text should be interpreted as AsciiDoc markup and
-  # used in a literal context.
-  literalAsciiDoc = text: {
-    _type = "literalAsciiDoc";
-    inherit text;
-  };
-}