Obviously, also available in CL, in Serapeum library[1]. Racket is credited in the docstring (since it's ~> instead of ->). Also, `nest` works very well for unn

Obviously, also available in CL, in Serapeum library[1]. Racket is credited in the docstring (since it's ~> instead of ->). Also, `nest` works very well for unnesting forms[2] [1] https://github.com/ruricolist/serapeum/blob/master/control-flow.lisp#L688 https://github.com/ruricolist/serapeum/blob/master/control-f... [2] https://github.com/ruricolist/serapeum/blob/master/REFERENCE.md#nest-rest-things https://github.com/ruricolist/serapeum/blob/master/REFERENCE...