#!/usr/local/bin/sbcl --script


(let ((x "helm"))
  (concat "http://rubikitch.com/tag/package:" x "/")
  ;; => "http://rubikitch.com/tag/package:helm/"
  (format "http://rubikitch.com/tag/package:%s/" x)
  ;; => "http://rubikitch.com/tag/package:helm/"
  )