Reminds me a bit of SabreCMS, despite the options being much more limited. And Sabre allows a full export of your entire site/shop/landingpage in case you want

Reminds me a bit of SabreCMS, despite the options being much more limited. And Sabre allows a full export of your entire site/shop/landingpage in case you want to self host after building - And it works with all browsers which seems to be an issue here. But nicely done.