How to add bibisco to Gumroad library

1) When buying bibisco

2) After buying bibisco

After buying bibisco, you received an email like this (if you can't find it check the spam folder):

Now, you have to press the button Download; the button takes you to a page where you can download again the application and add bibisco to Gumroad library.

2.1) If you have a Gumroad account

2.2) If you don't have Gumroad account