diff --git a/peertube/docker-compose.yml b/peertube/docker-compose.yml
index 05cddb4..3e9b473 100644
--- a/peertube/docker-compose.yml
+++ b/peertube/docker-compose.yml
@@ -48,17 +48,19 @@ services:
     #     ipv4_address: 172.18.0.42
     #     ipv6_address: fdab:e4b3:21a2:ef1b::42
     environment:
+      # initial account will be user root, password specified here:
+      PT_INITIAL_ROOT_PASSWORD: ROOT_USER_PASSWORD
       POSTGRES_DB: peertube
       PEERTUBE_DB_USERNAME: postgres
-      PEERTUBE_DB_PASSWORD: PASSWORD
+      PEERTUBE_DB_PASSWORD: YOUR_POSTGRES_PASSWORD
       PEERTUBE_DB_SSL: false
       PEERTUBE_DB_HOSTNAME: postgres
-      PEERTUBE_WEBSERVER_HOSTNAME: DOMAIN
+      PEERTUBE_WEBSERVER_HOSTNAME: YOUR_DOMAIN
       PEERTUBE_TRUST_PROXY: "[\"127.0.0.1\", \"loopback\", \"172.18.0.0/16\"]"
       PEERTUBE_SECRET: GENERATE_ME
       PEERTUBE_SMTP_HOSTNAME: postfix
       PEERTUBE_SMTP_PORT: 25
-      PEERTUBE_SMTP_FROM: noreply@DOMAIN
+      PEERTUBE_SMTP_FROM: noreply@YOUR_DOMAIN
       PEERTUBE_SMTP_TLS: false
       PEERTUBE_SMTP_DISABLE_STARTTLS: false
       PEERTUBE_ADMIN_EMAIL: EMAIL_ADDRESS
@@ -78,7 +80,7 @@ services:
     image: postgres:17-alpine
     environment:
       POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: PASSWORD
+      POSTGRES_PASSWORD: YOUR_POSTGRES_PASSWORD
       POSTGRES_DB: peertube
     volumes:
       - postgres:/var/lib/postgresql/data
@@ -93,8 +95,8 @@ services:
   postfix:
     image: mwader/postfix-relay
     environment:
-      POSTFIX_myhostname: DOMAIN
-      OPENDKIM_DOMAINS: DOMAIN=peertube
+      POSTFIX_myhostname: YOUR_DOMAIN
+      OPENDKIM_DOMAINS: YOUR_DOMAIN=peertube
       # see https://github.com/wader/postfix-relay/pull/18
       OPENDKIM_RequireSafeKeys: no
     volumes: