flake: refactor references to hlissner/dotfiles

lib/default.nix

@@ -36,4 +36,6 @@ rec {
   import ./digga.nix { inherit lib; }
 ) // (
   import ./hosts.nix { inherit lib; }
+) // (
+  import ./options.nix { inherit lib; }
 ))

lib/options.nix

@@ -0,0 +1,18 @@
+# Taken from https://github.com/hlissner/dotfiles/blob/master/lib/options.nix
+{ lib }:
+let
+  inherit (lib) mkOption types;
+in
+{
+  mkOpt = type: default:
+    mkOption { inherit type default; };
+
+  mkOpt' = type: default: description:
+    mkOption { inherit type default description; };
+
+  mkBoolOpt = default: mkOption {
+    inherit default;
+    type = types.bool;
+    example = true;
+  };
+}