The static mirror https://epitactic.gitlab.io/cloudbrowser/ is just a static HTML page + image hosted on GitLab Pages, so it should always be up, but the links there go back to the online demo which was down.

Unfortunately, I'm only hosting the demo on a quad-core 6GB VPS, which frequently runs out of memory. There is a known issue (https://gitlab.com/epitactic/cloudbrowser/issues/2) where old Chrome processes are not cleaned up for some reason. I've restarted the VPS, should be available again for now, for at least a while.