options is a taken var name

config/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, options, ... }: {
+{ pkgs, opts, ... }: {
   # Import all your configuration modules here
   imports = [ ./bufferline.nix ];
 
@@ -185,5 +185,5 @@
 
   ];
 
-  colorscheme = if options.pywal then "pywal" else "tokyonight-storm";
+  colorscheme = if opts.pywal then "pywal" else "tokyonight-storm";
 }