The first step is to accept terms and conditions and click on create project.
PUBLISH PROJECT
ATTENTION: You don't need any theme code edition, everything is manage by the app
Just go Customize your theme, theme settings, App Embed, and switch on axeptio Widget
If you don't have App Embed Theme Settings, you have a Vintage theme. To Install the app to your theme, choose the theme you want, and click Install On Vintage Theme
Good to know: This app install is ready for and themes.