Haiku is a gem for Notion users that want to start a blog. Love the simplicity. Saves a lot of hassle from setting up and maintaining WordPress. Congratulations for the launch
Not sure the world needs any more of these "Notion to static html blog" things. But happy to see makers stepping in and twisting the knife on Notion's bloated user experience, and neglect of such a basic feature.
PS: you're asking WAY too much in the price on this. Ghost is much less and a billion times better. And all the other Notion to static services are cheaper. Good if people pay that much (but why?), but you're going to see them all churn because you've got no defensive moat against someone just changing to another static notion service given all the content is in notion.