diff --git a/compose/init-databases.sql b/compose/init-databases.sql
deleted file mode 100644
index 4dce4d6..0000000
--- a/compose/init-databases.sql
+++ /dev/null
@@ -1,10 +0,0 @@
--- First-boot bootstrap for the shared Postgres cluster.
---
--- The official postgres image auto-creates exactly one database (POSTGRES_DB).
--- Interbox and Aidbox are peers, each owning its own database in the one cluster,
--- so we create both explicitly here. Neither app issues CREATE DATABASE itself —
--- they connect to an existing database and build their schema inside it.
---
--- initdb runs this once, only when the data directory is empty (fresh volume).
-CREATE DATABASE interbox;
-CREATE DATABASE aidbox;
diff --git a/docker-compose.yaml b/docker-compose.yaml
index ce5d1b8..aeacb64 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -25,7 +25,8 @@
 services:
   pg:
     # Single Postgres 18 cluster shared by Interbox and Aidbox — each owns its own
-    # database (interbox, aidbox), created first-boot by compose/init-databases.sql.
+    # database (interbox, aidbox). Both apps create their own database on first boot
+    # (Aidbox always; the engine since 1.4.0), so no init SQL is needed.
     # Interbox needs only pg_trgm + btree_gist (bundled contrib); Aidbox wants
     # pg_stat_statements, preloaded below.
     image: postgres:18
@@ -43,9 +44,6 @@ services:
       - "5432:5432"
     volumes:
       - pg-data:/var/lib/postgresql/18/docker
-      # First-boot only: creates the interbox + aidbox databases. The postgres image
-      # auto-creates only one db (POSTGRES_DB); with two peers we create both here.
-      - ./compose/init-databases.sql:/docker-entrypoint-initdb.d/10-databases.sql:ro
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres -d postgres"]
       interval: 2s