diff --git a/config.lua b/config.lua
index 70637b1..e6b3a66 100644
--- a/config.lua
+++ b/config.lua
@@ -1,26 +1,31 @@
 -- config.lua — model registry, routing rules, user preferences.
 -- Loaded with dofile() at startup; returns a plain Lua table.
 -- See docs/PHASE0.md §10 for resolution order and full schema.
+--
+-- Per issue #12: hossenfelder is the canonical single-URL broker. It does
+-- model-aware routing server-side (local models on boltzmann; cloud routes
+-- through OpenRouter using its own bearer auth — no client-side key here).
+-- Discovery: GET http://hossenfelder.fritz.box:8082/v1/models.
+
+local HOSSENFELDER = "http://hossenfelder.fritz.box:8082"
 
 return {
     default_model = "fast",
 
     models = {
         fast = {
-            endpoint    = "http://dirac.fritz.box:8081",
-            model       = "qwen-coder-7b-snappy-8k",
+            endpoint    = HOSSENFELDER,
+            model       = "qwen2.5-coder-1.5b-q4_k_m.gguf",
             temperature = 0.2,
         },
         deep = {
-            endpoint    = "http://dirac.fritz.box:8080",
-            model       = "qwen-coder-7b-32k",
+            endpoint    = HOSSENFELDER,
+            model       = "mistral-nemo-12b-instruct",
             temperature = 0.1,
         },
         cloud = {
-            endpoint    = "https://hossenfelder.fritz.box:8082",
+            endpoint    = HOSSENFELDER,
             model       = "anthropic/claude-haiku-4.5",
-            -- Hossenfelder forwards to OpenRouter using its own key from
-            -- /etc/conf.d/llm-proxy on the LXC; no client-side key needed.
             temperature = 0.2,
         },
     },