Display Name: what you want it to say on the home screen
Payload Identifier: unique ID for your app (template: com.yourapp.webclip)
Base64 Icon: what your app will look like of the home screen. (find a image to Base64 converter online, upload a picture, copy the output (NOT INCLUDING THE data:image/png;base64, PART), and paste it in the text box)
URL: what website you want to appify (template: https://google.com (don't use google for this just get the actual app))
Organization: who is this by (template: [your name], appified by KingNullboy)
Profile Identifier: another unique ID for your app (template: com.yourapp.config)
Note that this only works on Safari, unfortunately, and that it won't always work as well as my website's app does.