diff --git a/compose.yml b/compose.yml
index 3a34b1d..9c78ca0 100644
--- a/compose.yml
+++ b/compose.yml
@@ -137,6 +137,38 @@ services:
         networks:
             internal:
 
+    postgres:
+        image: postgres:alpine
+        depends_on:
+            - coredns
+        volumes:
+            - type: volume
+              source: postgres-database
+              target: /var/lib/postgresql/data
+            - type: bind
+              source: ./config/postgres-init.sh
+              target: /docker-entrypoint-initdb.d/postgres-init.sh
+        env_file:
+            - ./environment/postgres.env
+            - ./environment/postgres.local.env
+        dns: 172.20.0.2
+        networks:
+            internal:
+
+    adminer:
+        image: adminer:latest
+        depends_on:
+            - coredns
+            - postgres
+        ports:
+            # For the Adminer web interface
+            - 127.0.0.1:8091:8080
+        env_file:
+            - ./environment/adminer.env
+        dns: 172.20.0.2
+        networks:
+            internal:
+
     account:
         build: ./repos/account
         depends_on:
@@ -182,6 +214,7 @@ volumes:
     minio-s3-data:
     redis-data:
     maildev-mail:
+    postgres-database:
     account-certificates:
 
 networks:
diff --git a/config/postgres-init.sh b/config/postgres-init.sh
new file mode 100644
index 0000000..dbfabec
--- /dev/null
+++ b/config/postgres-init.sh
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+set -eu
+
+databases="friends"
+
+for database in $databases; do
+    echo "Creating database: $database"
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
+        CREATE DATABASE $database;
+EOSQL
+done
diff --git a/environment/adminer.env b/environment/adminer.env
new file mode 100644
index 0000000..8f10c43
--- /dev/null
+++ b/environment/adminer.env
@@ -0,0 +1 @@
+ADMINER_DEFAULT_SERVER=postgres
diff --git a/environment/postgres.env b/environment/postgres.env
new file mode 100644
index 0000000..fa1e0c7
--- /dev/null
+++ b/environment/postgres.env
@@ -0,0 +1 @@
+POSTGRES_USER=postgres_pretendo
diff --git a/scripts/setup-environment.sh b/scripts/setup-environment.sh
index 13e15b5..4d308d7 100755
--- a/scripts/setup-environment.sh
+++ b/scripts/setup-environment.sh
@@ -28,6 +28,11 @@ echo "MINIO_ROOT_PASSWORD=$minio_secret_key" >>./minio.local.env
 mongo_express_password=$(openssl rand -base64 32)
 echo "ME_CONFIG_BASICAUTH_PASSWORD=$mongo_express_password" >>./mongo-express.local.env
 
+# Generate a password for Postgres
+postgres_password=$(openssl rand -base64 32)
+echo "POSTGRES_PASSWORD=$postgres_password" >>./postgres.local.env
+echo "PN_FRIENDS_CONFIG_DATABASE_URI=postgres://postgres_pretendo:$postgres_password@postgres/friends?sslmode=disable" >>./friends.local.env
+
 # Get the Wii U IP address
 printf "Enter your Wii U's IP address: "
 read -r wiiu_ip