diff --git a/identity-provider/docker-compose.yml b/identity-provider/docker-compose.yml
index fb1b803..346fb76 100644
--- a/identity-provider/docker-compose.yml
+++ b/identity-provider/docker-compose.yml
@@ -37,8 +37,11 @@ services:
     # To start the initial setup, navigate to http://<your server's IP or hostname>:9000/if/flow/initial-setup/
     # TODO: Check whether a authentik proxy is necessary (ghcr.io/goauthentik/proxy).
     # More infos:
+    #  - https://github.com/brokenscripts/authentik_traefik [very good guide to Authentik behind Traefik!]
     #  - https://helgeklein.com/blog/authentik-authentication-sso-user-management-password-reset-for-home-networks/
-    #  - 
+    # Alternatives to Authentik:
+    #  - Keycloak https://www.keycloak.org | https://github.com/keycloak/keycloak [by Redhat, scalable solution, extensive features]
+    #  - Authelia https://www.authelia.com/ | https://github.com/authelia/authelia [more easily to deploy and maintain]
     image: ${AUTHENTIK_IMAGE}
     restart: unless-stopped
     depends_on:
diff --git a/infrastructure/docker-compose.yml b/infrastructure/docker-compose.yml
index 836e317..9a7cb14 100644
--- a/infrastructure/docker-compose.yml
+++ b/infrastructure/docker-compose.yml
@@ -97,6 +97,7 @@ services:
   whoami:
     # A container that exposes an API to show its IP address
     image: traefik/whoami
+    restart: always
     labels:
       - "traefik.http.routers.whoami.tls=true"
       - "traefik.http.routers.whoami.rule=Host(`${TRAEFIK_DASHBOARD_DOMAIN}`) || PathPrefix(`/who`)"
diff --git a/kanboard/docker-compose.yml b/kanboard/docker-compose.yml
index 2fa2acb..f602a99 100644
--- a/kanboard/docker-compose.yml
+++ b/kanboard/docker-compose.yml
@@ -3,6 +3,8 @@ services:
     # Project management Kanban-style
     # default credentials: admin/admin
     # https://docs.kanboard.org/v1/admin/docker/
+    # information for running MariaDB instead of SQLite: https://docs.kanboard.org/v1/admin/docker/
+    # plugin for authorization with Authentik: https://github.com/kanboard/plugin-oauth2
     image: ${KANBOARD_IMAGE}
     restart: unless-stopped
     labels: