yes they are exportable, but it is on a on-demand basis. Not so many users asked for it yet, so we didn't build this feature in self-service but it is in our backlog. We want to make sure anyone can deploy the static files on their own infrastructure, but we are just waiting for more demand to build it in self-service. You can actually go upvote for it on our public roadmap: https://weweb.canny.io/feature-requests