diff --git a/CLAUDE.md b/CLAUDE.md
index bdcc326..9f904d5 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -37,7 +37,7 @@ Docker runs alongside local dev on different ports and databases:
 - **Framework:** Kit (Integrant-based)
 - **Server:** Undertow
 - **Routing:** Reitit
-- **Database:** PostgreSQL + conman + Migratus
+- **Database:** PostgreSQL + conman + Migratus — the Postgres lives on **citadel** (`192.168.50.195:5432`); `btcprice` for local dev, `btcprod` for the deployed container
 - **Port:** 4100 (env: BTCDATA_PORT)
 - **CORS:** Configured via CORS_ORIGIN env var
 
diff --git a/env.example b/env.example
index 2ac7830..6027f85 100644
--- a/env.example
+++ b/env.example
@@ -20,10 +20,10 @@ STRIKE_ENABLED=false
 KRAKEN_ENABLED=false
 
 # --- Docker (docker compose up -d) ---
-# Runs alongside local dev on its own port. `postgres` resolves to the Docker
-# host via extra_hosts: host-gateway.
+# Runs alongside local dev on its own port. Points at the Postgres on citadel
+# (192.168.50.195) directly, so it works from any host that can reach that LAN.
 DOCKER_BTCDATA_PORT=4102
-DOCKER_JDBC_URL=jdbc:postgresql://postgres:5432/btcprod?user=postgres&password=changeme
+DOCKER_JDBC_URL=jdbc:postgresql://192.168.50.195:5432/btcprod?user=postgres&password=changeme
 DOCKER_CORS_ORIGIN=http://localhost:4041
 DOCKER_FRANKFURTER_URL=http://frankfurter:8080