mkdir nib/std && replace --all 'with' 'let ... in'

nib/types/default.nix

@@ -1,18 +1,11 @@
 {nib, ...} @ args: let
-  attrs = import ./attrs.nix args;
   fault = import ./fault.nix args;
-  lists = import ./lists.nix args;
   maybe = import ./maybe.nix args;
   res = import ./res.nix args;
 in
-  attrs.mergeAttrsList [
+  nib.std.mergeAttrsList [
     # submodule is included directly to this module (ie self.myFunc)
-    attrs
     fault
-    lists
     maybe
     res
-
-    # submodule content is accessible first by submodule name
-    # then by the name of the content (ie self.submodule.myFunc)
   ]