diff --git a/homeserver.yaml.tmpl b/homeserver.yaml.tmpl
index bfaee90..b2e902a 100644
--- a/homeserver.yaml.tmpl
+++ b/homeserver.yaml.tmpl
@@ -63,6 +63,12 @@ limit_remote_rooms:
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#max_avatar_size
 max_avatar_size: 10M
 
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#forgotten_room_retention_period
+forgotten_room_retention_period: 3d
+
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#request_token_inhibit_3pid_errors
+request_token_inhibit_3pid_errors: true
+
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#redaction_retention_period
 redaction_retention_period: {{ env "REDACTION_RETENTION_PERIOD" }}
 
@@ -129,6 +135,9 @@ enable_registration: {{ env "ENABLE_REGISTRATION" }}
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#enable_3pid_lookup
 enable_3pid_lookup: {{ env "ENABLE_3PID_LOOKUP" }}
 
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#allow_guest_access
+allow_guest_access: false
+
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#registration_shared_secret
 registration_shared_secret: {{ secret "registration_shared_secret" }}
 
@@ -238,9 +247,24 @@ encryption_enabled_by_default_for_room_type: {{ env "ENCRYPTED_BY_DEFAULT" }}
 
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#user_directory
 user_directory:
+  enabled: true
   search_all_users: true
+  prefer_local_users: true
 
 # https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#media_retention
 media_retention:
   local_media_lifetime: {{ env "MEDIA_RETENTION_LOCAL_LIFETIME" }}
   remote_media_lifetime: {{ env "MEDIA_RETENTION_REMOTE_LIFETIME" }}
+
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#enable_metrics
+enable_metrics: false
+
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#track_appservice_user_ips
+track_appservice_user_ips: false
+
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#forget_rooms_on_leave
+forget_rooms_on_leave: true
+
+# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#opentracing-1
+opentracing:
+  enabled: false