From 4a4e0764160421735f1739cf92d67e591b6eb8a4 Mon Sep 17 00:00:00 2001
From: BenClaw <benclaw@mozo.bar>
Date: Sun, 17 May 2026 20:16:01 +0200
Subject: [PATCH] fix(action_cable): use Redis adapter in development too
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- async adapter is in-process — works in Puma request cycle
  but fails from Rails console (no event loop to deliver messages)
- Redis is shared-state, works from any context (console, jobs, requests)
- Dev uses Redis DB 2, separate channel_prefix from production
---
 config/cable.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/config/cable.yml b/config/cable.yml
index cd9c788c..36d8ae70 100644
--- a/config/cable.yml
+++ b/config/cable.yml
@@ -6,7 +6,9 @@
 #                Redis is also used for Mozo::Counter (replacing DrbCounter).
 #
 development:
-  adapter: async
+  adapter: redis
+  url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/2" } %>
+  channel_prefix: mozo_backend_dev
 
 test:
   adapter: test