diff --git a/docs/explanation/architecture.md b/docs/explanation/architecture.md
index 278d82a..bf52db6 100644
--- a/docs/explanation/architecture.md
+++ b/docs/explanation/architecture.md
@@ -106,9 +106,10 @@ Services run in two places on [[indri]]:
                     └─────────────┘
 ```
 
-[[alloy]] runs in two places:
+[[alloy]] runs in three places:
 - On indri: collects host metrics and logs
 - In k8s: collects pod logs and service probes
+- On [[flyio-proxy]]: tails nginx access logs and derives request metrics
 
 See [[observability]] for details.