embedded psql

.env_template

@@ -1,8 +1,16 @@
-DATABASE_URL="postgres://multi_psql_dev:3@localhost:5432/multi_rust_dev"
-RUST_DB_NAME=multi_rust_dev
-RUST_DB_USER=multi_psql_dev
-RUST_DB_PASSWORD=3
-RUST_DB_HOST=localhost
-RUST_DB_PORT=5432
+# The default build uses its bundled PostgreSQL. These optional values show the
+# defaults; KOMP_AC_POSTGRES_DIR can move its persistent installation and data.
+RUST_DB_MODE=embedded
+# RUST_DB_NAME=komp_ac
+# RUST_DB_USER=postgres
+# RUST_DB_PASSWORD=
+# RUST_DB_HOST=127.0.0.1
+# RUST_DB_PORT=5433
+# KOMP_AC_POSTGRES_DIR=/var/lib/komp_ac/postgresql
+
+# For a separately managed database, set RUST_DB_MODE=external and provide all
+# five RUST_DB_* connection settings. DATABASE_URL is only used by development
+# tools and tests; the server reads RUST_DB_*.
+# DATABASE_URL="postgres://multi_psql_dev:password@localhost:5432/multi_rust_dev"
 
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