It's worth noting that there is no architectural limitation preventing an HA topology: multiple Dorkly servers can be deployed behind one or more load balancers for HA + lower latency where it matters (ie web and mobile apps).
If this is a limitation for anyone I'm happy to work with you on modifying the terraform module to support HA.
If this is a limitation for anyone I'm happy to work with you on modifying the terraform module to support HA.