libcluster
Automatic cluster formation/healing for Elixir applications
...Its design embraces OTP principles: strategies implement a behavior, can be composed, and run under supervision for resilience. libcluster also emits events on nodeup/nodedown, allowing applications to react (for example, rebalance work or update registries) when membership changes. Because it relies on the BEAM’s native distribution, it integrates cleanly with Phoenix PubSub, Horde, Oban, or any other distributed Elixir tooling.