You can host production notebooks offline/locally or on your own SSG/CDN. Here is a project that we built last year (by its nature, it had a limited shelf lif

You can host production notebooks offline/locally or on your own SSG/CDN. Here is a project that we built last year (by its nature, it had a limited shelf life so it made no sense to have long term cloud support.) https://spike150.mocanyc.org/ https://spike150.mocanyc.org/ If you inspect the source in the browser, you will see that the notebooks are hosted on the same server. P.S. If you want online interactive notebook on your own site, I guess that is their business model either as a viral sharing of free notebooks or paid private team sharing. (I was on a team plan during the development of the project. But once the project is done, there is no need for us to continue on team plan and be interactive. I am glad that they offer support of offline production notebook.) P.P.S. If Observable Team is listening, here is a business idea for them: observable playground as a service. It would be less a technical challenge than a business development challenge.