bookmarklet.cljs

(defn bookmarklet-url []
  (let [sci-url "https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js"
        code '(println "hi" (+ 1 2)) ;; not support yet

        code '(str "sum " (+ 1 2 3 4 5 6 7))]
    (str "javascript:(function(){var s=document.createElement('script');s.onload=function(){alert(sci.evalString('" (clojure.string/replace (pr-str code) "\"" "%22")
         "'))};s.setAttribute('src','" sci-url "');document.body.appendChild(s);})();")))

(defn bookmarklet-link [link]
  (str "<a href=\"" (bookmarklet-url) "\">" link "</a>"))

(println (generate-bookmarklet))

(println (bookmarklet-link "take 4"))

Sci_Bookmarklet.html

<a href="javascript:(function(){         
          script = document.createElement('script');                   
          script.onload = function(){ alert('Loaded!'); };                  
          
          script.setAttribute('src','https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js?i=' + Math.random());

          document.body.appendChild(script);
                   
        })();"> Bookmark JS</a>



<a href="javascript:(function(){var s=document.createElement('script');s.onload=function(){alert(sci.evalString('(str %221%22 2)'))};s.setAttribute('src','https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js');document.body.appendChild(s);})();"> Bookmark JS 2</a>




<a href="javascript:(function(){var s=document.createElement('script');s.onload=function(){alert(sci.evalString((.log js/console (println %22hi%22 (+ 1 2)))))};s.setAttribute('src','https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js');document.body.appendChild(s);})();"> Bookmark JS 3</a>



<a href="javascript:(function(){var s=document.createElement('script');s.onload=function(){alert(sci.evalString('(println %22hi%22 (+ 1 2))'))};s.setAttribute('src','https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js');document.body.appendChild(s);})();">take 4</a>

Working version!
<a href="javascript:(function(){var s=document.createElement('script');s.onload=function(){alert(sci.evalString('(str %22sum %22 (+ 1 2 3 4 5 6 7))'))};s.setAttribute('src','https://cdn.jsdelivr.net/npm/@borkdude/sci@0.0.13-alpha.6/sci.js');document.body.appendChild(s);})();">take 4</a>