People are sleeping on Elixir for a coding harness: * Hot-code swapping allows you to build an extensible plugin system similar to Pi, which reloads live without dropping state * Designing a client-server architecture, similar to OpenCode, is basically a byproduct of the actor model (plus you get both IO/CPU concurrency) * The built-in distribution means you can easily isolate the brains (model + session) from the hands (sandbox + tools). For example, you can the agentic session on your machine which coordinates agents executing inside Docker or a remote node. Or even have one agent session coordinate multiple nodes (this is basically how Livebook works anyway) Those can definitely be built from scratch in other languages, but in Elixir the building blocks are basically part of the runtime.