No plans for a Docker image atm but you should be able to easily host this using any web server! It just needs to be built, and I might make a Github Action to automate that.
For now, the site is fully static and doesn’t require any server so you can just use the one hosted on Netlify.
I mean, you can at least run offline PWAs, Android apps and Linux apps on ChromeOS just fine. It doesn’t try to stream the entire desktop over as a service…