diff --git a/Dockerfile b/Dockerfile
index fd744e1..af37e0b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,4 @@
-FROM quay.io/keycloak/keycloak:latest as builder
-
-ENV KC_HEALTH_ENABLED=true
-
-WORKDIR /opt/keycloak
-
-# for demonstration purposes only
-RUN keytool -genkeypair -storepass password -storetype PKCS12 -keyalg RSA -keysize 2048 -dname "CN=server" -alias server -ext "SAN:c=DNS:localhost,IP:127.0.0.1" -keystore conf/server.keystore
-RUN /opt/keycloak/bin/kc.sh build
-
 FROM quay.io/keycloak/keycloak:latest
-COPY --from=builder /opt/keycloak/ /opt/keycloak/
 ADD start.sh /start.sh
 
 ENV PORT=${PORT:-8080}
diff --git a/README.md b/README.md
index 54585b1..7821c29 100644
--- a/README.md
+++ b/README.md
@@ -9,17 +9,13 @@ Right now, auth.js keycloak is a simple docker deployment on ec2.
 
 ### Prerequisites
 
-- External database
 - SSL certificates (generated with certbot/letsencrypt, for example)
 
 Then, the docker container is started like this:
 
 ```bash
-export KEYCLOAK_DB_URL=<JDBC-URL>
 export KEYCLOAK_ADMIN_PASSWORD=<Password>
 export KEYCLOAK_HOSTNAME=keycloak.authjs.dev
-export KEYCLOAK_DB_USERNAME=<DB-Username>
-export KEYCLOAK_DB_PASSWORD=<DB-password>
 
-docker run -d    --name authjs-keycloak   -v /path-to-letsencrypt-certificates:/certificates -p 443:443   -e KEYCLOAK_ADMIN=admin   -e KEYCLOAK_ADMIN_PASSWORD=$KEYCLOAK_ADMIN_PASSWORD   quay.io/keycloak/keycloak:latest   start   --features=token-exchange   --https-certificate-file=/certificates/fullchain.pem   --https-certificate-key-file=/certificates/privkey.pem   --hostname=$KEYCLOAK_HOSTNAME   --proxy=edge   --https-port=443   --db=postgres --db-url=$KEYCLOAK_DB_URL   --db-username=$KEYCLOAK_DB_USERNAME   --db-password=$KEYCLOAK_DB_PASSWORD
+docker run -d    --name authjs-keycloak   -v /path-to-letsencrypt-certificates:/certificates -p 443:443   -e KEYCLOAK_ADMIN=admin   -e KEYCLOAK_ADMIN_PASSWORD=$KEYCLOAK_ADMIN_PASSWORD   quay.io/keycloak/keycloak:latest   start   --features=token-exchange   --https-certificate-file=/certificates/fullchain.pem   --https-certificate-key-file=/certificates/privkey.pem   --hostname=$KEYCLOAK_HOSTNAME   --proxy=edge   --https-port=443
 ```
diff --git a/start.sh b/start.sh
index 7ede762..a1f4be6 100755
--- a/start.sh
+++ b/start.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 ARGS="$@"
-/opt/keycloak/bin/kc.sh start --optimized $ARGS &
+/opt/keycloak/bin/kc.sh $ARGS &
 
 KEYCLOAK_PID=$!