Great post, beautiful site (and fast!). One passage caught my eye: > Deployments are not zero-downtime at this point and I’m planning to switch to an AB-style

Great post, beautiful site (and fast!). One passage caught my eye: > Deployments are not zero-downtime at this point and I’m planning to switch to an AB-style deployment model once the site has enough traffic to warrant it Do you mean blue-green deployment ( https://docs.cloudfoundry.org/devguide/deploy-apps/blue-green.html https://docs.cloudfoundry.org/devguide/deploy-apps/blue-gree... )? In any case note that you can do that even with just a single compute–just run both instances of the app in the same compute, on different ports–say, 3000 and 3001–and use a reverse proxy like Nginx to load-balance incoming HTTP traffic between them. Then you get blue-green deployment almost for free.