diff --git a/app.rkt b/app.rkt
new file mode 100644
index 0000000..fa5af70
--- /dev/null
+++ b/app.rkt
@@ -0,0 +1,35 @@
+#lang racket/gui
+(require words)
+
+(define frame (new frame% [label "Words"]
+                   [width 500]
+                   [height 500]
+                   [x 100]
+                   [y 100]))
+
+(define (fill-wordbox [word-count 100])
+  (define ed (send wordbox get-editor))
+  (send ed erase)
+  (send ed insert (string-join (make-words #:count word-count) " " #:after-last " ")))
+
+(define ((make-wordbox-callback word-count) [button #f] [event #f])
+  (fill-wordbox word-count))
+
+(let ([button-panel (new horizontal-panel% [parent frame]
+                         [alignment '(center center)]
+                         [stretchable-height #false])])
+  (for ([count '(100 250 500 1000 all)])
+       (define count-str (format "~a" count))
+       (new button% [parent button-panel]
+            [label count-str]
+            ; Callback procedure for a button click:
+            [callback (make-wordbox-callback (string->number count-str))])))
+
+(define wordbox (new text-field%
+                     [label #f]
+                     [style '(multiple)]
+                     [parent frame]
+                     [font (make-font #:face "Fira Mono OT" #:size 14)]))
+
+(send frame show #t)
+